Author	SHA1	Message	Date
Greg Kroah-Hartman	91a7552bea	This is the 5.4.160 stable release ... -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAmGUwhUACgkQONu9yGCS aT4hlBAAjcjBBtJ7IuVRAbJhRSIW3H0viMdPTBvydSNwSF6mk9BL56CQ+OyAGLaB Fnb5DNxhIO9DAbwuvBW4wEJibSA1Q4191bRjZEKrf70LRdmA51vz0dBu2KRNV+IV HWtJYyXIyqqU/EXPsVmdmNFxr6YUCUmkyEaE18/rsg/cZmMg/Zot434cnSuzVzrW 9yLQVQAs7CAKD7kICZ/S7P7V1IKQyuLj5meX2BBE24YwukvlA9N5ISXGQuW91683 iqv0cfjwYtfrNMOE7K2AKrDgZ0AxuLrIiyppqHjHPB+zIvgm2ErQU+Hp76hVtWpW yP0cq6ReP3ktc9Hmxr49xU1l3D/6jo+OyqQh5eomP2veGpRh3dq+oe1VoN7Iw9Xg YBvjOuononlBoChsddlbxwQTZIXff9MvOK2zADmHM0740xTlqSIgw6ITdg/lyKG8 7QbM6pSepXKVXDhHtbEQQGIJP/SvLyjGKX5pJjTKQ0cemkGJ/Sp/HNHMlf/CRLen LsS2kHCuBTWKQP0NJaAIp0J3lNfcCnB8Cv2BhmkHkVPx0jEvlZKDVJqdH7tbpIdy hdR9vwq9neBIjAiTFMEAuV1/+zGR4zNqiocUXhkIC9BAzrBKinyct78kV2trVOc2 J4lFhpOv1I9/HwaqP6kYnJW+nNoMzN3sD0uT8fk8dlYo5GBvbVk= =YkOP -----END PGP SIGNATURE----- Merge 5.4.160 into android11-5.4-lts Changes in 5.4.160 xhci: Fix USB 3.1 enumeration issues by increasing roothub power-on-good delay usb: xhci: Enable runtime-pm by default on AMD Yellow Carp platform binder: use euid from cred instead of using task binder: use cred instead of task for selinux checks binder: use cred instead of task for getsecid Input: iforce - fix control-message timeout Input: elantench - fix misreporting trackpoint coordinates Input: i8042 - Add quirk for Fujitsu Lifebook T725 libata: fix read log timeout value ocfs2: fix data corruption on truncate scsi: qla2xxx: Fix kernel crash when accessing port_speed sysfs file scsi: qla2xxx: Fix use after free in eh_abort path mmc: dw_mmc: Dont wait for DRTO on Write RSP error parisc: Fix ptrace check on syscall return tpm: Check for integer overflow in tpm2_map_response_body() firmware/psci: fix application of sizeof to pointer crypto: s5p-sss - Add error handling in s5p_aes_probe() media: ite-cir: IR receiver stop working after receive overflow media: ir-kbd-i2c: improve responsiveness of hauppauge zilog receivers media: v4l2-ioctl: Fix check_ext_ctrls ALSA: hda/realtek: Add quirk for Clevo PC70HS ALSA: hda/realtek: Add a quirk for Acer Spin SP513-54N ALSA: hda/realtek: Add quirk for ASUS UX550VE ALSA: hda/realtek: Add quirk for HP EliteBook 840 G7 mute LED ALSA: ua101: fix division by zero at probe ALSA: 6fire: fix control and bulk message timeouts ALSA: line6: fix control and interrupt message timeouts ALSA: usb-audio: Add registration quirk for JBL Quantum 400 ALSA: synth: missing check for possible NULL after the call to kstrdup ALSA: timer: Fix use-after-free problem ALSA: timer: Unconditionally unlink slave instances, too fuse: fix page stealing x86/sme: Use #define USE_EARLY_PGTABLE_L5 in mem_encrypt_identity.c x86/cpu: Fix migration safety with X86_BUG_NULL_SEL x86/irq: Ensure PI wakeup handler is unregistered before module unload cavium: Return negative value when pci_alloc_irq_vectors() fails scsi: qla2xxx: Return -ENOMEM if kzalloc() fails scsi: qla2xxx: Fix unmap of already freed sgl cavium: Fix return values of the probe function sfc: Don't use netif_info before net_device setup hyperv/vmbus: include linux/bitops.h ARM: dts: sun7i: A20-olinuxino-lime2: Fix ethernet phy-mode reset: socfpga: add empty driver allowing consumers to probe mmc: winbond: don't build on M68K drm: panel-orientation-quirks: Add quirk for Aya Neo 2021 bpf: Define bpf_jit_alloc_exec_limit for arm64 JIT bpf: Prevent increasing bpf_jit_limit above max xen/netfront: stop tx queues during live migration nvmet-tcp: fix a memory leak when releasing a queue spi: spl022: fix Microwire full duplex mode net: multicast: calculate csum of looped-back and forwarded packets watchdog: Fix OMAP watchdog early handling drm: panel-orientation-quirks: Add quirk for GPD Win3 nvmet-tcp: fix header digest verification r8169: Add device 10ec:8162 to driver r8169 vmxnet3: do not stop tx queues after netif_device_detach() nfp: bpf: relax prog rejection for mtu check through max_pkt_offset net/smc: Correct spelling mistake to TCPF_SYN_RECV btrfs: clear MISSING device status bit in btrfs_close_one_device btrfs: fix lost error handling when replaying directory deletes btrfs: call btrfs_check_rw_degradable only if there is a missing device ia64: kprobes: Fix to pass correct trampoline address to the handler hwmon: (pmbus/lm25066) Add offset coefficients regulator: s5m8767: do not use reset value as DVS voltage if GPIO DVS is disabled regulator: dt-bindings: samsung,s5m8767: correct s5m8767,pmic-buck-default-dvs-idx property EDAC/sb_edac: Fix top-of-high-memory value for Broadwell/Haswell mwifiex: fix division by zero in fw download path ath6kl: fix division by zero in send path ath6kl: fix control-message timeout ath10k: fix control-message timeout ath10k: fix division by zero in send path PCI: Mark Atheros QCA6174 to avoid bus reset rtl8187: fix control-message timeouts evm: mark evm_fixmode as __ro_after_init wcn36xx: Fix HT40 capability for 2Ghz band mwifiex: Read a PCI register after writing the TX ring write pointer libata: fix checking of DMA state wcn36xx: handle connection loss indication rsi: fix occasional initialisation failure with BT coex rsi: fix key enabled check causing unwanted encryption for vap_id > 0 rsi: fix rate mask set leading to P2P failure rsi: Fix module dev_oper_mode parameter description RDMA/qedr: Fix NULL deref for query_qp on the GSI QP signal: Remove the bogus sigkill_pending in ptrace_stop signal/mips: Update (_save|_restore)_fp_context to fail with -EFAULT power: supply: max17042_battery: Prevent int underflow in set_soc_threshold power: supply: max17042_battery: use VFSOC for capacity when no rsns KVM: nVMX: Query current VMCS when determining if MSR bitmaps are in use can: j1939: j1939_tp_cmd_recv(): ignore abort message in the BAM transport can: j1939: j1939_can_recv(): ignore messages with invalid source address powerpc/85xx: Fix oops when mpc85xx_smp_guts_ids node cannot be found serial: core: Fix initializing and restoring termios speed ALSA: mixer: oss: Fix racy access to slots ALSA: mixer: fix deadlock in snd_mixer_oss_set_volume xen/balloon: add late_initcall_sync() for initial ballooning done PCI: pci-bridge-emul: Fix emulation of W1C bits PCI: aardvark: Do not clear status bits of masked interrupts PCI: aardvark: Fix checking for link up via LTSSM state PCI: aardvark: Do not unmask unused interrupts PCI: aardvark: Fix reporting Data Link Layer Link Active PCI: aardvark: Fix return value of MSI domain .alloc() method PCI: aardvark: Read all 16-bits from PCIE_MSI_PAYLOAD_REG quota: check block number when reading the block in quota file quota: correct error number in free_dqentry() pinctrl: core: fix possible memory leak in pinctrl_enable() iio: dac: ad5446: Fix ad5622_write() return value USB: serial: keyspan: fix memleak on probe errors USB: iowarrior: fix control-message timeouts USB: chipidea: fix interrupt deadlock dma-buf: WARN on dmabuf release with pending attachments drm: panel-orientation-quirks: Update the Lenovo Ideapad D330 quirk (v2) drm: panel-orientation-quirks: Add quirk for KD Kurio Smart C15200 2-in-1 drm: panel-orientation-quirks: Add quirk for the Samsung Galaxy Book 10.6 Bluetooth: sco: Fix lock_sock() blockage by memcpy_from_msg() Bluetooth: fix use-after-free error in lock_sock_nested() drm/panel-orientation-quirks: add Valve Steam Deck platform/x86: wmi: do not fail if disabling fails MIPS: lantiq: dma: add small delay after reset MIPS: lantiq: dma: reset correct number of channel locking/lockdep: Avoid RCU-induced noinstr fail net: sched: update default qdisc visibility after Tx queue cnt changes smackfs: Fix use-after-free in netlbl_catmap_walk() x86: Increase exception stack sizes mwifiex: Run SET_BSS_MODE when changing from P2P to STATION vif-type mwifiex: Properly initialize private structure on interface type changes ath10k: high latency fixes for beacon buffer media: mt9p031: Fix corrupted frame after restarting stream media: netup_unidvb: handle interrupt properly according to the firmware media: stm32: Potential NULL pointer dereference in dcmi_irq_thread() media: uvcvideo: Set capability in s_param media: uvcvideo: Return -EIO for control errors media: uvcvideo: Set unique vdev name based in type media: s5p-mfc: fix possible null-pointer dereference in s5p_mfc_probe() media: s5p-mfc: Add checking to s5p_mfc_probe(). media: imx: set a media_device bus_info string media: mceusb: return without resubmitting URB in case of -EPROTO error. ia64: don't do IA64_CMPXCHG_DEBUG without CONFIG_PRINTK brcmfmac: Add DMI nvram filename quirk for Cyberbook T116 tablet media: rcar-csi2: Add checking to rcsi2_start_receiver() ipmi: Disable some operations during a panic ACPICA: Avoid evaluating methods too early during system resume media: ipu3-imgu: imgu_fmt: Handle properly try media: ipu3-imgu: VIDIOC_QUERYCAP: Fix bus_info media: usb: dvd-usb: fix uninit-value bug in dibusb_read_eeprom_byte() net-sysfs: try not to restart the syscall if it will fail eventually tracefs: Have tracefs directories not set OTH permission bits by default ath: dfs_pattern_detector: Fix possible null-pointer dereference in channel_detector_create() iov_iter: Fix iov_iter_get_pages{,_alloc} page fault return value ACPI: battery: Accept charges over the design capacity as full leaking_addresses: Always print a trailing newline memstick: r592: Fix a UAF bug when removing the driver lib/xz: Avoid overlapping memcpy() with invalid input with in-place decompression lib/xz: Validate the value before assigning it to an enum variable workqueue: make sysfs of unbound kworker cpumask more clever tracing/cfi: Fix cmp_entries_* functions signature mismatch mwl8k: Fix use-after-free in mwl8k_fw_state_machine() block: remove inaccurate requeue check nvmet: fix use-after-free when a port is removed nvmet-tcp: fix use-after-free when a port is removed nvme: drop scan_lock and always kick requeue list when removing namespaces PM: hibernate: Get block device exclusively in swsusp_check() selftests: kvm: fix mismatched fclose() after popen() iwlwifi: mvm: disable RX-diversity in powersave smackfs: use __GFP_NOFAIL for smk_cipso_doi() ARM: clang: Do not rely on lr register for stacktrace gre/sit: Don't generate link-local addr if addr_gen_mode is IN6_ADDR_GEN_MODE_NONE ARM: 9136/1: ARMv7-M uses BE-8, not BE-32 vrf: run conntrack only in context of lower/physdev for locally generated packets net: annotate data-race in neigh_output() btrfs: do not take the uuid_mutex in btrfs_rm_device spi: bcm-qspi: Fix missing clk_disable_unprepare() on error in bcm_qspi_probe() x86/hyperv: Protect set_hv_tscchange_cb() against getting preempted parisc: fix warning in flush_tlb_all task_stack: Fix end_of_stack() for architectures with upwards-growing stack parisc/unwind: fix unwinder when CONFIG_64BIT is enabled parisc/kgdb: add kgdb_roundup() to make kgdb work with idle polling netfilter: conntrack: set on IPS_ASSURED if flows enters internal stream state selftests/bpf: Fix strobemeta selftest regression Bluetooth: fix init and cleanup of sco_conn.timeout_work rcu: Fix existing exp request check in sync_sched_exp_online_cleanup() drm/v3d: fix wait for TMU write combiner flush virtio-gpu: fix possible memory allocation failure net: net_namespace: Fix undefined member in key_remove_domain() cgroup: Make rebind_subsystems() disable v2 controllers all at once wilc1000: fix possible memory leak in cfg_scan_result() Bluetooth: btmtkuart: fix a memleak in mtk_hci_wmt_sync crypto: caam - disable pkc for non-E SoCs rxrpc: Fix _usecs_to_jiffies() by using usecs_to_jiffies() net: dsa: rtl8366rb: Fix off-by-one bug ath10k: Fix missing frame timestamp for beacon/probe-resp drm/amdgpu: fix warning for overflow check media: em28xx: add missing em28xx_close_extension media: cxd2880-spi: Fix a null pointer dereference on error handling path media: dvb-usb: fix ununit-value in az6027_rc_query media: TDA1997x: handle short reads of hdmi info frame. media: mtk-vpu: Fix a resource leak in the error handling path of 'mtk_vpu_probe()' media: radio-wl1273: Avoid card name truncation media: si470x: Avoid card name truncation media: tm6000: Avoid card name truncation media: cx23885: Fix snd_card_free call on null card pointer kprobes: Do not use local variable when creating debugfs file crypto: ecc - fix CRYPTO_DEFAULT_RNG dependency cpuidle: Fix kobject memory leaks in error paths media: em28xx: Don't use ops->suspend if it is NULL ath9k: Fix potential interrupt storm on queue reset EDAC/amd64: Handle three rank interleaving mode netfilter: nft_dynset: relax superfluous check on set updates media: dvb-frontends: mn88443x: Handle errors of clk_prepare_enable() crypto: qat - detect PFVF collision after ACK crypto: qat - disregard spurious PFVF interrupts hwrng: mtk - Force runtime pm ops for sleep ops b43legacy: fix a lower bounds test b43: fix a lower bounds test mmc: sdhci-omap: Fix NULL pointer exception if regulator is not configured memstick: avoid out-of-range warning memstick: jmb38x_ms: use appropriate free function in jmb38x_ms_alloc_host() net, neigh: Fix NTF_EXT_LEARNED in combination with NTF_USE hwmon: Fix possible memleak in __hwmon_device_register() hwmon: (pmbus/lm25066) Let compiler determine outer dimension of lm25066_coeff ath10k: fix max antenna gain unit drm/msm: uninitialized variable in msm_gem_import() net: stream: don't purge sk_error_queue in sk_stream_kill_queues() mmc: mxs-mmc: disable regulator on error and in the remove function block: ataflop: fix breakage introduced at blk-mq refactoring platform/x86: thinkpad_acpi: Fix bitwise vs. logical warning mt76: mt76x02: fix endianness warnings in mt76x02_mac.c rsi: stop thread firstly in rsi_91x_init() error handling mwifiex: Send DELBA requests according to spec phy: micrel: ksz8041nl: do not use power down mode nvme-rdma: fix error code in nvme_rdma_setup_ctrl PM: hibernate: fix sparse warnings clocksource/drivers/timer-ti-dm: Select TIMER_OF drm/msm: Fix potential NULL dereference in DPU SSPP smackfs: use netlbl_cfg_cipsov4_del() for deleting cipso_v4_doi libbpf: Fix BTF data layout checks and allow empty BTF s390/gmap: don't unconditionally call pte_unmap_unlock() in __gmap_zap() irq: mips: avoid nested irq_enter() tcp: don't free a FIN sk_buff in tcp_remove_empty_skb() samples/kretprobes: Fix return value if register_kretprobe() failed KVM: s390: Fix handle_sske page fault handling libertas_tf: Fix possible memory leak in probe and disconnect libertas: Fix possible memory leak in probe and disconnect wcn36xx: add proper DMA memory barriers in rx path drm/amdgpu/gmc6: fix DMA mask from 44 to 40 bits net: amd-xgbe: Toggle PLL settings during rate change net: phylink: avoid mvneta warning when setting pause parameters crypto: pcrypt - Delay write to padata->info selftests/bpf: Fix fclose/pclose mismatch in test_progs udp6: allow SO_MARK ctrl msg to affect routing ibmvnic: don't stop queue in xmit ibmvnic: Process crqs after enabling interrupts RDMA/rxe: Fix wrong port_cap_flags clk: mvebu: ap-cpu-clk: Fix a memory leak in error handling paths ARM: s3c: irq-s3c24xx: Fix return value check for s3c24xx_init_intc() arm64: dts: rockchip: Fix GPU register width for RK3328 ARM: dts: qcom: msm8974: Add xo_board reference clock to DSI0 PHY RDMA/bnxt_re: Fix query SRQ failure arm64: dts: meson-g12a: Fix the pwm regulator supply properties ARM: dts: at91: tse850: the emac<->phy interface is rmii scsi: dc395: Fix error case unwinding MIPS: loongson64: make CPU_LOONGSON64 depends on MIPS_FP_SUPPORT JFS: fix memleak in jfs_mount ALSA: hda: Reduce udelay() at SKL+ position reporting arm: dts: omap3-gta04a4: accelerometer irq fix soc/tegra: Fix an error handling path in tegra_powergate_power_up() memory: fsl_ifc: fix leak of irq and nand_irq in fsl_ifc_ctrl_probe clk: at91: check pmc node status before registering syscore ops video: fbdev: chipsfb: use memset_io() instead of memset() serial: 8250_dw: Drop wrong use of ACPI_PTR() usb: gadget: hid: fix error code in do_config() power: supply: rt5033_battery: Change voltage values to µV scsi: csiostor: Uninitialized data in csio_ln_vnp_read_cbfn() RDMA/mlx4: Return missed an error if device doesn't support steering staging: ks7010: select CRYPTO_HASH/CRYPTO_MICHAEL_MIC ARM: dts: stm32: fix SAI sub nodes register range ASoC: cs42l42: Correct some register default values ASoC: cs42l42: Defer probe if request_threaded_irq() returns EPROBE_DEFER phy: qcom-qusb2: Fix a memory leak on probe serial: xilinx_uartps: Fix race condition causing stuck TX HID: u2fzero: clarify error check and length calculations HID: u2fzero: properly handle timeouts in usb_submit_urb powerpc/44x/fsp2: add missing of_node_put mips: cm: Convert to bitfield API to fix out-of-bounds access power: supply: bq27xxx: Fix kernel crash on IRQ handler register error apparmor: fix error check rpmsg: Fix rpmsg_create_ept return when RPMSG config is not defined pnfs/flexfiles: Fix misplaced barrier in nfs4_ff_layout_prepare_ds drm/plane-helper: fix uninitialized variable reference PCI: aardvark: Don't spam about PIO Response Status PCI: aardvark: Fix preserving PCI_EXP_RTCTL_CRSSVE flag on emulated bridge opp: Fix return in _opp_add_static_v2() NFS: Fix deadlocks in nfs_scan_commit_list() fs: orangefs: fix error return code of orangefs_revalidate_lookup() mtd: spi-nor: hisi-sfc: Remove excessive clk_disable_unprepare() mtd: core: don't remove debugfs directory if device is in use dmaengine: at_xdmac: fix AT_XDMAC_CC_PERID() macro auxdisplay: img-ascii-lcd: Fix lock-up when displaying empty string auxdisplay: ht16k33: Connect backlight to fbdev auxdisplay: ht16k33: Fix frame buffer device blanking soc: fsl: dpaa2-console: free buffer before returning from dpaa2_console_read netfilter: nfnetlink_queue: fix OOB when mac header was cleared dmaengine: dmaengine_desc_callback_valid(): Check for `callback_result` signal/sh: Use force_sig(SIGKILL) instead of do_group_exit(SIGKILL) m68k: set a default value for MEMORY_RESERVE watchdog: f71808e_wdt: fix inaccurate report in WDIOC_GETTIMEOUT ar7: fix kernel builds for compiler test scsi: qla2xxx: Fix gnl list corruption scsi: qla2xxx: Turn off target reset during issue_lip NFSv4: Fix a regression in nfs_set_open_stateid_locked() i2c: xlr: Fix a resource leak in the error handling path of 'xlr_i2c_probe()' xen-pciback: Fix return in pm_ctrl_init() net: davinci_emac: Fix interrupt pacing disable net: vlan: fix a UAF in vlan_dev_real_dev() ACPI: PMIC: Fix intel_pmic_regs_handler() read accesses bonding: Fix a use-after-free problem when bond_sysfs_slave_add() failed mm/zsmalloc.c: close race window between zs_pool_dec_isolated() and zs_unregister_migration() zram: off by one in read_block_state() perf bpf: Add missing free to bpf_event__print_bpf_prog_info() llc: fix out-of-bound array index in llc_sk_dev_hash() nfc: pn533: Fix double free when pn533_fill_fragment_skbs() fails arm64: pgtable: make __pte_to_phys/__phys_to_pte_val inline functions bpf: sockmap, strparser, and tls are reusing qdisc_skb_cb and colliding net/sched: sch_taprio: fix undefined behavior in ktime_mono_to_any net: hns3: allow configure ETS bandwidth of all TCs vsock: prevent unnecessary refcnt inc for nonblocking connect net/smc: fix sk_refcnt underflow on linkdown and fallback cxgb4: fix eeprom len when diagnostics not implemented selftests/net: udpgso_bench_rx: fix port argument ARM: 9155/1: fix early early_iounmap() ARM: 9156/1: drop cc-option fallbacks for architecture selection parisc: Fix backtrace to always include init funtion names parisc: Fix set_fixmap() on PA1.x CPUs irqchip/sifive-plic: Fixup EOI failed when masked f2fs: should use GFP_NOFS for directory inodes net, neigh: Enable state migration between NUD_PERMANENT and NTF_USE 9p/net: fix missing error check in p9_check_errors ovl: fix deadlock in splice write powerpc/lib: Add helper to check if offset is within conditional branch range powerpc/bpf: Validate branch ranges powerpc/bpf: Fix BPF_SUB when imm == 0x80000000 powerpc/security: Add a helper to query stf_barrier type powerpc/bpf: Emit stf barrier instruction sequences for BPF_NOSPEC mm, oom: pagefault_out_of_memory: don't force global OOM for dying tasks mm, oom: do not trigger out_of_memory from the #PF video: backlight: Drop maximum brightness override for brightness zero s390/cio: check the subchannel validity for dev_busid s390/tape: fix timer initialization in tape_std_assign() s390/cio: make ccw_device_dma_* more robust powerpc/powernv/prd: Unregister OPAL_MSG_PRD2 notifier during module unload PCI: Add PCI_EXP_DEVCTL_PAYLOAD_* macros SUNRPC: Partial revert of commit 6f9f17287e78 ath10k: fix invalid dma_addr_t token assignment selftests/bpf: Fix also no-alu32 strobemeta selftest Linux 5.4.160 Note, binder* patches were manually reverted as part of this merge, they are not present in this merge point at all. Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I1fb759dd89408adbe9b9ac1527af51bfdc4059de	2021-11-17 10:19:21 +01:00
Peter Zijlstra	a82f379378	locking/lockdep: Avoid RCU-induced noinstr fail ... [ Upstream commit ce0b9c805dd66d5e49fd53ec5415ae398f4c56e6 ] vmlinux.o: warning: objtool: look_up_lock_class()+0xc7: call to rcu_read_lock_any_held() leaves .noinstr.text section Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20210624095148.311980536@infradead.org Signed-off-by: Sasha Levin <sashal@kernel.org>	2021-11-17 09:48:28 +01:00
Greg Kroah-Hartman	d756462d85	This is the 5.4.146 stable release ... -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAmFBpSMACgkQONu9yGCS aT6PRw//T4GhyaqI0+hhYnYv2++RBzAtKsOAPE7JUZ8X5zNNe3NZKD/+c0q9loy3 vs1GpkjppSzZcL2WGZidwpgOTO0fqEYiJKusI+E60UGbu8GmmoUl0EbV3A3PP1K7 n+T1jzMID1j4NwmZQsAA1o3/9pkWrKLb/1+g0mHVCL6WQjA4/YROi5f6xhVeCq/u aZFLxrgJ8YRkT9znEHCBcipEGRLid5kQp1uxSA5KaQh0JJl01eoJ3M52swYiExC/ 8g+QXPHFWOs9a1vVyxUG5o4WCShnjKwY1fNkEJ5j54LMmmg52llHfMHajV2a1Kdt qihSgY5/pPY9FgEDQ3Sy6xiTO2Lvq17lvHtEbGIn5V7SjQ4ISEN15Pqv3l+PqAFc gHeukc28mBfw6/kbolKZ/wksIKyDzxCHd4QNEYZMKjSPbjpzg7zjsvCX53lHkKNb 23I0iJTu9yVDcPzYYCh/8ndFtxEIBGXS8c9kL5YN8p2k1AMqXcr1qUbYzM9CJqwm MSaZ2C1rR58Uhd4CUvOK4N2K7lw+2PH6I0UcSGlp9jv+xHVlmERiM7uaZGBn7oLm +n+5BRAU/qDK+Vm1poIZogrsI4BwMp9ZH4terELR28i0gPwYo+tCzddWqq98BuGT 52ylkG56l0gbC9Bvpf3Ou3K5/qbmhN9HYElt16HNFO6x/ufE2XI= =1neh -----END PGP SIGNATURE----- Merge 5.4.146 into android11-5.4-lts Changes in 5.4.146 locking/mutex: Fix HANDOFF condition regmap: fix the offset of register error log crypto: mxs-dcp - Check for DMA mapping errors sched/deadline: Fix reset_on_fork reporting of DL tasks power: supply: axp288_fuel_gauge: Report register-address on readb / writeb errors crypto: omap-sham - clear dma flags only after omap_sham_update_dma_stop() sched/deadline: Fix missing clock update in migrate_task_rq_dl() rcu/tree: Handle VM stoppage in stall detection posix-cpu-timers: Force next expiration recalc after itimer reset hrtimer: Avoid double reprogramming in __hrtimer_start_range_ns() hrtimer: Ensure timerfd notification for HIGHRES=n udf: Check LVID earlier udf: Fix iocharset=utf8 mount option isofs: joliet: Fix iocharset=utf8 mount option bcache: add proper error unwinding in bcache_device_init nvme-tcp: don't update queue count when failing to set io queues nvme-rdma: don't update queue count when failing to set io queues nvmet: pass back cntlid on successful completion power: supply: max17042_battery: fix typo in MAx17042_TOFF s390/cio: add dev_busid sysfs entry for each subchannel libata: fix ata_host_start() crypto: qat - do not ignore errors from enable_vf2pf_comms() crypto: qat - handle both source of interrupt in VF ISR crypto: qat - fix reuse of completion variable crypto: qat - fix naming for init/shutdown VF to PF notifications crypto: qat - do not export adf_iov_putmsg() fcntl: fix potential deadlock for &fasync_struct.fa_lock udf_get_extendedattr() had no boundary checks. s390/kasan: fix large PMD pages address alignment check s390/debug: fix debug area life cycle m68k: emu: Fix invalid free in nfeth_cleanup() sched: Fix UCLAMP_FLAG_IDLE setting spi: spi-fsl-dspi: Fix issue with uninitialized dma_slave_config spi: spi-pic32: Fix issue with uninitialized dma_slave_config genirq/timings: Fix error return code in irq_timings_test_irqs() lib/mpi: use kcalloc in mpi_resize clocksource/drivers/sh_cmt: Fix wrong setting if don't request IRQ for clock source channel block: nbd: add sanity check for first_minor crypto: qat - use proper type for vf_mask certs: Trigger creation of RSA module signing key if it's not an RSA key regulator: vctrl: Use locked regulator_get_voltage in probe path regulator: vctrl: Avoid lockdep warning in enable/disable ops spi: sprd: Fix the wrong WDG_LOAD_VAL spi: spi-zynq-qspi: use wait_for_completion_timeout to make zynq_qspi_exec_mem_op not interruptible EDAC/i10nm: Fix NVDIMM detection drm/panfrost: Fix missing clk_disable_unprepare() on error in panfrost_clk_init() media: TDA1997x: enable EDID support soc: rockchip: ROCKCHIP_GRF should not default to y, unconditionally media: cxd2880-spi: Fix an error handling path bpf: Fix a typo of reuseport map in bpf.h. bpf: Fix potential memleak and UAF in the verifier. ARM: dts: aspeed-g6: Fix HVI3C function-group in pinctrl dtsi arm64: dts: renesas: r8a77995: draak: Remove bogus adv7511w properties soc: qcom: rpmhpd: Use corner in power_off media: dvb-usb: fix uninit-value in dvb_usb_adapter_dvb_init media: dvb-usb: fix uninit-value in vp702x_read_mac_addr media: dvb-usb: Fix error handling in dvb_usb_i2c_init media: go7007: remove redundant initialization media: coda: fix frame_mem_ctrl for YUV420 and YVU420 formats Bluetooth: sco: prevent information leak in sco_conn_defer_accept() 6lowpan: iphc: Fix an off-by-one check of array index netns: protect netns ID lookups with RCU drm/amdgpu/acp: Make PM domain really work tcp: seq_file: Avoid skipping sk during tcp_seek_last_pos ARM: dts: meson8: Use a higher default GPU clock frequency ARM: dts: meson8b: odroidc1: Fix the pwm regulator supply properties ARM: dts: meson8b: mxq: Fix the pwm regulator supply properties ARM: dts: meson8b: ec100: Fix the pwm regulator supply properties net/mlx5e: Prohibit inner indir TIRs in IPoIB cgroup/cpuset: Fix a partition bug with hotplug net: cipso: fix warnings in netlbl_cipsov4_add_std i2c: highlander: add IRQ check leds: lt3593: Put fwnode in any case during ->probe() leds: trigger: audio: Add an activate callback to ensure the initial brightness is set media: em28xx-input: fix refcount bug in em28xx_usb_disconnect media: venus: venc: Fix potential null pointer dereference on pointer fmt PCI: PM: Avoid forcing PCI_D0 for wakeup reasons inconsistently PCI: PM: Enable PME if it can be signaled from D3cold soc: qcom: smsm: Fix missed interrupts if state changes while masked debugfs: Return error during {full/open}_proxy_open() on rmmod Bluetooth: increase BTNAMSIZ to 21 chars to fix potential buffer overflow PM: EM: Increase energy calculation precision drm/msm/dpu: make dpu_hw_ctl_clear_all_blendstages clear necessary LMs arm64: dts: exynos: correct GIC CPU interfaces address range on Exynos7 counter: 104-quad-8: Return error when invalid mode during ceiling_write Bluetooth: fix repeated calls to sco_sock_kill drm/msm/dsi: Fix some reference counted resource leaks usb: gadget: udc: at91: add IRQ check usb: phy: fsl-usb: add IRQ check usb: phy: twl6030: add IRQ checks usb: gadget: udc: renesas_usb3: Fix soc_device_match() abuse Bluetooth: Move shutdown callback before flushing tx and rx queue usb: host: ohci-tmio: add IRQ check usb: phy: tahvo: add IRQ check mac80211: Fix insufficient headroom issue for AMSDU lockd: Fix invalid lockowner cast after vfs_test_lock nfsd4: Fix forced-expiry locking usb: gadget: mv_u3d: request_irq() after initializing UDC mm/swap: consider max pages in iomap_swapfile_add_extent Bluetooth: add timeout sanity check to hci_inquiry i2c: iop3xx: fix deferred probing i2c: s3c2410: fix IRQ check rsi: fix error code in rsi_load_9116_firmware() rsi: fix an error code in rsi_probe() ASoC: Intel: Skylake: Leave data as is when invoking TLV IPCs ASoC: Intel: Skylake: Fix module resource and format selection mmc: dw_mmc: Fix issue with uninitialized dma_slave_config mmc: moxart: Fix issue with uninitialized dma_slave_config bpf: Fix possible out of bound write in narrow load handling CIFS: Fix a potencially linear read overflow i2c: mt65xx: fix IRQ check usb: ehci-orion: Handle errors of clk_prepare_enable() in probe usb: bdc: Fix an error handling path in 'bdc_probe()' when no suitable DMA config is available tty: serial: fsl_lpuart: fix the wrong mapbase value ASoC: wcd9335: Fix a double irq free in the remove function ASoC: wcd9335: Fix a memory leak in the error handling path of the probe function ASoC: wcd9335: Disable irq on slave ports in the remove function ath6kl: wmi: fix an error code in ath6kl_wmi_sync_point() bcma: Fix memory leak for internally-handled cores brcmfmac: pcie: fix oops on failure to resume and reprobe ipv6: make exception cache less predictible ipv4: make exception cache less predictible net: sched: Fix qdisc_rate_table refcount leak when get tcf_block failed net: qualcomm: fix QCA7000 checksum handling octeontx2-af: Fix loop in free and unmap counter ipv4: fix endianness issue in inet_rtm_getroute_build_skb() bpf: Introduce BPF nospec instruction for mitigating Spectre v4 bpf: Fix leakage due to insufficient speculative store bypass mitigation bpf: verifier: Allocate idmap scratch in verifier env bpf: Fix pointer arithmetic mask tightening under state pruning time: Handle negative seconds correctly in timespec64_to_ns() tty: Fix data race between tiocsti() and flush_to_ldisc() perf/x86/amd/ibs: Extend PERF_PMU_CAP_NO_EXCLUDE to IBS Op x86/resctrl: Fix a maybe-uninitialized build warning treated as error KVM: s390: index kvm->arch.idle_mask by vcpu_idx KVM: x86: Update vCPU's hv_clock before back to guest when tsc_offset is adjusted KVM: nVMX: Unconditionally clear nested.pi_pending on nested VM-Enter fuse: truncate pagecache on atomic_o_trunc fuse: flush extending writes IMA: remove -Wmissing-prototypes warning IMA: remove the dependency on CRYPTO_MD5 fbmem: don't allow too huge resolutions backlight: pwm_bl: Improve bootloader/kernel device handover clk: kirkwood: Fix a clocking boot regression Linux 5.4.146 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I5524baa0c07d9d9b80c0736488e3ea0e4fb8e335	2021-09-15 14:01:16 +02:00
Peter Zijlstra	a5e42516a6	locking/mutex: Fix HANDOFF condition ... [ Upstream commit 048661a1f963e9517630f080687d48af79ed784c ] Yanfei reported that setting HANDOFF should not depend on recomputing @first, only on @first state. Which would then give: if (ww_ctx || !first) first = __mutex_waiter_is_first(lock, &waiter); if (first) __mutex_set_flag(lock, MUTEX_FLAG_HANDOFF); But because 'ww_ctx || !first' is basically 'always' and the test for first is relatively cheap, omit that first branch entirely. Reported-by: Yanfei Xu <yanfei.xu@windriver.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Waiman Long <longman@redhat.com> Reviewed-by: Yanfei Xu <yanfei.xu@windriver.com> Link: https://lore.kernel.org/r/20210630154114.896786297@infradead.org Signed-off-by: Sasha Levin <sashal@kernel.org>	2021-09-15 09:47:25 +02:00
Greg Kroah-Hartman	374d020984	This is the 5.4.132 stable release ... -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAmDu+p0ACgkQONu9yGCS aT5SOw/9F58e4gz7PSTn4A9oCTNodRPe9B9rzf3y1Ol0k7T1aeQoWsPFOkZpNSOJ tdOGEXnwYnLpMC7nuFshWv1uKGAL/weHADyGV6J37AntYFjpEFhJhSH7pGGhDk7V EeIl98luBynPXOKNnDvcrQweeRaHKOInQBT8JJzwwsZbF2oqfOqdU0A787BiRu+3 zoi/mV0upDB443ji/JY0xj+o4jlbsuD0WxEqgkcD2YHL+QvU5Wr0mGys7m5gG9x7 TpKpMic0ILrF1vt/znLL5rOlX497prTvZ74ZXV/DYizeYxqtl/UG3CZjo1uf2yqk pAXA57paz6DY2Ct+3QbJBeuer27bTz6SCClSS1om9AcUk6oNSdULmMdTGvQb0SLU wx1Cy8b2ei04SVl96+McKKZ6ln47LJediGn0qIdwC6O/XHHrLq4u5PkSnQxRU4pA GH1tP5oYy4GzL9RbBeiDJQETFiXwkexSEWVyuSc6BhqQXao9yVzmLQbL1zgjH/zO m/tckZ3vEg+ll8j4QJCisHRyqYhwfru4PsJQH9Q7q6CtIuGOsd0Z/OUcLuF6knXg jDOrDIykE/PnkQ2Dc2RhdONP1ud5j3oBnHvNHs6FDghRKjaixMQzg3g/RNtnAaTj +7Xsfbi6ntpZSDOaY7YNgt+ZH3l4YRnUL/xBA6qIygayz374nzI= =LU0G -----END PGP SIGNATURE----- Merge 5.4.132 into android11-5.4-lts Changes in 5.4.132 ALSA: usb-audio: fix rate on Ozone Z90 USB headset ALSA: usb-audio: Fix OOB access at proc output ALSA: usb-audio: scarlett2: Fix wrong resume call ALSA: intel8x0: Fix breakage at ac97 clock measurement ALSA: hda/realtek: Add another ALC236 variant support ALSA: hda/realtek: Improve fixup for HP Spectre x360 15-df0xxx ALSA: hda/realtek: Fix bass speaker DAC mapping for Asus UM431D ALSA: hda/realtek: Apply LED fixup for HP Dragonfly G1, too media: dvb-usb: fix wrong definition Input: usbtouchscreen - fix control-request directions net: can: ems_usb: fix use-after-free in ems_usb_disconnect() usb: gadget: eem: fix echo command packet response issue USB: cdc-acm: blacklist Heimann USB Appset device usb: dwc3: Fix debugfs creation flow usb: typec: Add the missed altmode_id_remove() in typec_register_altmode() xhci: solve a double free problem while doing s4 ntfs: fix validity check for file name attribute copy_page_to_iter(): fix ITER_DISCARD case iov_iter_fault_in_readable() should do nothing in xarray case Input: joydev - prevent use of not validated data in JSIOCSBTNMAP ioctl arm_pmu: Fix write counter incorrect in ARMv7 big-endian mode ARM: dts: at91: sama5d4: fix pinctrl muxing btrfs: send: fix invalid path for unlink operations after parent orphanization btrfs: clear defrag status of a root if starting transaction fails ext4: cleanup in-core orphan list if ext4_truncate() failed to get a transaction handle ext4: fix kernel infoleak via ext4_extent_header ext4: return error code when ext4_fill_flex_info() fails ext4: correct the cache_nr in tracepoint ext4_es_shrink_exit ext4: remove check for zero nr_to_scan in ext4_es_scan() ext4: fix avefreec in find_group_orlov ext4: use ext4_grp_locked_error in mb_find_extent can: bcm: delay release of struct bcm_op after synchronize_rcu() can: gw: synchronize rcu operations before removing gw job entry can: j1939: j1939_sk_init(): set SOCK_RCU_FREE to call sk_destruct() after RCU is done can: peak_pciefd: pucan_handle_status(): fix a potential starvation issue in TX path mac80211: remove iwlwifi specific workaround that broke sta NDP tx SUNRPC: Fix the batch tasks count wraparound. SUNRPC: Should wake up the privileged task firstly. perf/smmuv3: Don't trample existing events with global filter KVM: PPC: Book3S HV: Workaround high stack usage with clang s390/cio: dont call css_wait_for_slow_path() inside a lock rtc: stm32: Fix unbalanced clk_disable_unprepare() on probe error path iio: light: tcs3472: do not free unallocated IRQ iio: ltr501: mark register holding upper 8 bits of ALS_DATA{0,1} and PS_DATA as volatile, too iio: ltr501: ltr559: fix initialization of LTR501_ALS_CONTR iio: ltr501: ltr501_read_ps(): add missing endianness conversion serial: mvebu-uart: fix calculation of clock divisor serial: sh-sci: Stop dmaengine transfer in sci_stop_tx() serial_cs: Add Option International GSM-Ready 56K/ISDN modem serial_cs: remove wrong GLOBETROTTER.cis entry ath9k: Fix kernel NULL pointer dereference during ath_reset_internal() ssb: sdio: Don't overwrite const buffer if block_write fails rsi: Assign beacon rate settings to the correct rate_info descriptor field rsi: fix AP mode with WPA failure due to encrypted EAPOL tracing/histograms: Fix parsing of "sym-offset" modifier tracepoint: Add tracepoint_probe_register_may_exist() for BPF tracing seq_buf: Make trace_seq_putmem_hex() support data longer than 8 powerpc/stacktrace: Fix spurious "stale" traces in raise_backtrace_ipi() evm: Execute evm_inode_init_security() only when an HMAC key is loaded evm: Refuse EVM_ALLOW_METADATA_WRITES only if an HMAC key is loaded fuse: ignore PG_workingset after stealing fuse: check connected before queueing on fpq->io fuse: reject internal errno spi: Make of_register_spi_device also set the fwnode media: mdk-mdp: fix pm_runtime_get_sync() usage count media: s5p: fix pm_runtime_get_sync() usage count media: sh_vou: fix pm_runtime_get_sync() usage count media: mtk-vcodec: fix PM runtime get logic media: s5p-jpeg: fix pm_runtime_get_sync() usage count media: sti/bdisp: fix pm_runtime_get_sync() usage count media: exynos-gsc: fix pm_runtime_get_sync() usage count spi: spi-loopback-test: Fix 'tx_buf' might be 'rx_buf' spi: spi-topcliff-pch: Fix potential double free in pch_spi_process_messages() spi: omap-100k: Fix the length judgment problem regulator: uniphier: Add missing MODULE_DEVICE_TABLE hwrng: exynos - Fix runtime PM imbalance on error crypto: nx - add missing MODULE_DEVICE_TABLE media: sti: fix obj-$(config) targets media: cpia2: fix memory leak in cpia2_usb_probe media: cobalt: fix race condition in setting HPD media: pvrusb2: fix warning in pvr2_i2c_core_done media: imx: imx7_mipi_csis: Fix logging of only error event counters crypto: qat - check return code of qat_hal_rd_rel_reg() crypto: qat - remove unused macro in FW loader sched/fair: Fix ascii art by relpacing tabs media: em28xx: Fix possible memory leak of em28xx struct media: v4l2-core: Avoid the dangling pointer in v4l2_fh_release media: bt8xx: Fix a missing check bug in bt878_probe media: st-hva: Fix potential NULL pointer dereferences Makefile: fix GDB warning with CONFIG_RELR media: dvd_usb: memory leak in cinergyt2_fe_attach memstick: rtsx_usb_ms: fix UAF mmc: sdhci-sprd: use sdhci_sprd_writew mmc: via-sdmmc: add a check against NULL pointer dereference crypto: shash - avoid comparing pointers to exported functions under CFI media: dvb_net: avoid speculation from net slot media: siano: fix device register error path media: imx-csi: Skip first few frames from a BT.656 source hwmon: (max31790) Report correct current pwm duty cycles hwmon: (max31790) Fix pwmX_enable attributes drivers/perf: fix the missed ida_simple_remove() in ddr_perf_probe() KVM: PPC: Book3S HV: Fix TLB management on SMT8 POWER9 and POWER10 processors btrfs: fix error handling in __btrfs_update_delayed_inode btrfs: abort transaction if we fail to update the delayed inode btrfs: disable build on platforms having page size 256K locking/lockdep: Fix the dep path printing for backwards BFS lockding/lockdep: Avoid to find wrong lock dep path in check_irq_usage() KVM: s390: get rid of register asm usage regulator: mt6358: Fix vdram2 .vsel_mask regulator: da9052: Ensure enough delay time for .set_voltage_time_sel media: Fix Media Controller API config checks HID: do not use down_interruptible() when unbinding devices EDAC/ti: Add missing MODULE_DEVICE_TABLE ACPI: processor idle: Fix up C-state latency if not ordered hv_utils: Fix passing zero to 'PTR_ERR' warning lib: vsprintf: Fix handling of number field widths in vsscanf ACPI: EC: Make more Asus laptops use ECDT _GPE block_dump: remove block_dump feature in mark_inode_dirty() fs: dlm: cancel work sync othercon random32: Fix implicit truncation warning in prandom_seed_state() fs: dlm: fix memory leak when fenced ACPICA: Fix memory leak caused by _CID repair function ACPI: bus: Call kobject_put() in acpi_init() error path ACPI: resources: Add checks for ACPI IRQ override block: fix race between adding/removing rq qos and normal IO platform/x86: toshiba_acpi: Fix missing error code in toshiba_acpi_setup_keyboard() nvmet-fc: do not check for invalid target port in nvmet_fc_handle_fcp_rqst() EDAC/Intel: Do not load EDAC driver when running as a guest PCI: hv: Add check for hyperv_initialized in init_hv_pci_drv() clocksource: Retry clock read if long delays detected ACPI: tables: Add custom DSDT file as makefile prerequisite HID: wacom: Correct base usage for capacitive ExpressKey status bits cifs: fix missing spinlock around update to ses->status block: fix discard request merge kthread_worker: fix return value when kthread_mod_delayed_work() races with kthread_cancel_delayed_work_sync() ia64: mca_drv: fix incorrect array size calculation writeback, cgroup: increment isw_nr_in_flight before grabbing an inode media: s5p_cec: decrement usage count if disabled crypto: ixp4xx - dma_unmap the correct address crypto: ux500 - Fix error return code in hash_hw_final() sata_highbank: fix deferred probing pata_rb532_cf: fix deferred probing media: I2C: change 'RST' to "RSET" to fix multiple build errors sched/uclamp: Fix wrong implementation of cpu.uclamp.min sched/uclamp: Fix locking around cpu_util_update_eff() kbuild: run the checker after the compiler kbuild: Fix objtool dependency for 'OBJECT_FILES_NON_STANDARD_<obj> := n' pata_octeon_cf: avoid WARN_ON() in ata_host_activate() evm: fix writing <securityfs>/evm overflow crypto: ccp - Fix a resource leak in an error handling path media: rc: i2c: Fix an error message pata_ep93xx: fix deferred probing media: exynos4-is: Fix a use after free in isp_video_release media: au0828: fix a NULL vs IS_ERR() check media: tc358743: Fix error return code in tc358743_probe_of() media: gspca/gl860: fix zero-length control requests m68k: atari: Fix ATARI_KBD_CORE kconfig unmet dependency warning media: siano: Fix out-of-bounds warnings in smscore_load_firmware_family2() crypto: nitrox - fix unchecked variable in nitrox_register_interrupts crypto: omap-sham - Fix PM reference leak in omap sham ops mmc: usdhi6rol0: fix error return code in usdhi6_probe() arm64: consistently use reserved_pg_dir arm64/mm: Fix ttbr0 values stored in struct thread_info for software-pan media: s5p-g2d: Fix a memory leak on ctx->fh.m2m_ctx hwmon: (max31722) Remove non-standard ACPI device IDs hwmon: (max31790) Fix fan speed reporting for fan7..12 KVM: nVMX: Ensure 64-bit shift when checking VMFUNC bitmap regulator: hi655x: Fix pass wrong pointer to config.driver_data btrfs: clear log tree recovering status if starting transaction fails sched/rt: Fix RT utilization tracking during policy change sched/rt: Fix Deadline utilization tracking during policy change sched/uclamp: Fix uclamp_tg_restrict() spi: spi-sun6i: Fix chipselect/clock bug crypto: nx - Fix RCU warning in nx842_OF_upd_status ACPI: sysfs: Fix a buffer overrun problem with description_show() extcon: extcon-max8997: Fix IRQ freeing at error path blk-wbt: introduce a new disable state to prevent false positive by rwb_enabled() blk-wbt: make sure throttle is enabled properly ACPI: Use DEVICE_ATTR_<RW|RO|WO> macros ACPI: bgrt: Fix CFI violation cpufreq: Make cpufreq_online() call driver->offline() on errors ocfs2: fix snprintf() checking dax: fix ENOMEM handling in grab_mapping_entry() xfrm: xfrm_state_mtu should return at least 1280 for ipv6 video: fbdev: imxfb: Fix an error message net: mvpp2: Put fwnode in error case during ->probe() net: pch_gbe: Propagate error from devm_gpio_request_one() pinctrl: renesas: r8a7796: Add missing bias for PRESET# pin pinctrl: renesas: r8a77990: JTAG pins do not have pull-down capabilities clk: meson: g12a: fix gp0 and hifi ranges net: ftgmac100: add missing error return code in ftgmac100_probe() drm/rockchip: cdn-dp-core: add missing clk_disable_unprepare() on error in cdn_dp_grf_write() drm/rockchip: dsi: move all lane config except LCDC mux to bind() ehea: fix error return code in ehea_restart_qps() net/sched: act_vlan: Fix modify to allow 0 RDMA/core: Sanitize WQ state received from the userspace RDMA/rxe: Fix failure during driver load drm: qxl: ensure surf.data is ininitialized tools/bpftool: Fix error return code in do_batch() ath10k: go to path err_unsupported when chip id is not supported ath10k: add missing error return code in ath10k_pci_probe() wireless: carl9170: fix LEDS build errors & warnings ieee802154: hwsim: Fix possible memory leak in hwsim_subscribe_all_others wcn36xx: Move hal_buf allocation to devm_kmalloc in probe ssb: Fix error return code in ssb_bus_scan() brcmfmac: fix setting of station info chains bitmask brcmfmac: correctly report average RSSI in station info brcmsmac: mac80211_if: Fix a resource leak in an error handling path ath10k: Fix an error code in ath10k_add_interface() netlabel: Fix memory leak in netlbl_mgmt_add_common RDMA/mlx5: Don't add slave port to unaffiliated list netfilter: nft_exthdr: check for IPv6 packet before further processing netfilter: nft_osf: check for TCP packet before further processing netfilter: nft_tproxy: restrict support to TCP and UDP transport protocols RDMA/rxe: Fix qp reference counting for atomic ops samples/bpf: Fix the error return code of xdp_redirect's main() net: ethernet: aeroflex: fix UAF in greth_of_remove net: ethernet: ezchip: fix UAF in nps_enet_remove net: ethernet: ezchip: fix error handling vrf: do not push non-ND strict packets with a source LLA through packet taps again net: sched: add barrier to ensure correct ordering for lockless qdisc tls: prevent oversized sendfile() hangs by ignoring MSG_MORE pkt_sched: sch_qfq: fix qfq_change_class() error path vxlan: add missing rcu_read_lock() in neigh_reduce() net/ipv4: swap flow ports when validating source tc-testing: fix list handling ieee802154: hwsim: Fix memory leak in hwsim_add_one ieee802154: hwsim: avoid possible crash in hwsim_del_edge_nl() mac80211: remove iwlwifi specific workaround NDPs of null_response net: bcmgenet: Fix attaching to PYH failed on RPi 4B ipv6: exthdrs: do not blindly use init_net bpf: Do not change gso_size during bpf_skb_change_proto() i40e: Fix error handling in i40e_vsi_open i40e: Fix autoneg disabling for non-10GBaseT links Revert "ibmvnic: remove duplicate napi_schedule call in open function" ibmvnic: free tx_pool if tso_pool alloc fails ipv6: fix out-of-bound access in ip6_parse_tlv() e1000e: Check the PCIm state bpfilter: Specify the log level for the kmsg message gve: Fix swapped vars when fetching max queues Revert "be2net: disable bh with spin_lock in be_process_mcc" Bluetooth: mgmt: Fix slab-out-of-bounds in tlv_data_is_valid Bluetooth: Fix handling of HCI_LE_Advertising_Set_Terminated event clk: actions: Fix UART clock dividers on Owl S500 SoC clk: actions: Fix SD clocks factor table on Owl S500 SoC clk: actions: Fix bisp_factor_table based clocks on Owl S500 SoC clk: si5341: Avoid divide errors due to bogus register contents clk: si5341: Update initialization magic writeback: fix obtain a reference to a freeing memcg css net: lwtunnel: handle MTU calculation in forwading net: sched: fix warning in tcindex_alloc_perfect_hash RDMA/mlx5: Don't access NULL-cleared mpi pointer MIPS: Fix PKMAP with 32-bit MIPS huge page support staging: fbtft: Rectify GPIO handling rcu: Invoke rcu_spawn_core_kthreads() from rcu_spawn_gp_kthread() tty: nozomi: Fix a resource leak in an error handling function mwifiex: re-fix for unaligned accesses iio: adis_buffer: do not return ints in irq handlers iio: adis16400: do not return ints in irq handlers iio: accel: bma180: Fix buffer alignment in iio_push_to_buffers_with_timestamp() iio: accel: bma220: Fix buffer alignment in iio_push_to_buffers_with_timestamp() iio: accel: hid: Fix buffer alignment in iio_push_to_buffers_with_timestamp() iio: accel: kxcjk-1013: Fix buffer alignment in iio_push_to_buffers_with_timestamp() iio:accel:mxc4005: Drop unnecessary explicit casts in regmap_bulk_read calls iio: accel: mxc4005: Fix overread of data and alignment issue. iio: accel: stk8312: Fix buffer alignment in iio_push_to_buffers_with_timestamp() iio: accel: stk8ba50: Fix buffer alignment in iio_push_to_buffers_with_timestamp() iio: adc: ti-ads1015: Fix buffer alignment in iio_push_to_buffers_with_timestamp() iio: adc: vf610: Fix buffer alignment in iio_push_to_buffers_with_timestamp() iio: gyro: bmg160: Fix buffer alignment in iio_push_to_buffers_with_timestamp() iio: humidity: am2315: Fix buffer alignment in iio_push_to_buffers_with_timestamp() iio: prox: srf08: Fix buffer alignment in iio_push_to_buffers_with_timestamp() iio: prox: pulsed-light: Fix buffer alignment in iio_push_to_buffers_with_timestamp() iio: prox: as3935: Fix buffer alignment in iio_push_to_buffers_with_timestamp() iio: magn: hmc5843: Fix buffer alignment in iio_push_to_buffers_with_timestamp() iio: magn: bmc150: Fix buffer alignment in iio_push_to_buffers_with_timestamp() iio: light: isl29125: Fix buffer alignment in iio_push_to_buffers_with_timestamp() iio: light: tcs3414: Fix buffer alignment in iio_push_to_buffers_with_timestamp() iio: light: tcs3472: Fix buffer alignment in iio_push_to_buffers_with_timestamp() iio: cros_ec_sensors: Fix alignment of buffer in iio_push_to_buffers_with_timestamp() iio: potentiostat: lmp91000: Fix alignment of buffer in iio_push_to_buffers_with_timestamp() ASoC: rk3328: fix missing clk_disable_unprepare() on error in rk3328_platform_probe() ASoC: hisilicon: fix missing clk_disable_unprepare() on error in hi6210_i2s_startup() backlight: lm3630a_bl: Put fwnode in error case during ->probe() ASoC: rsnd: tidyup loop on rsnd_adg_clk_query() Input: hil_kbd - fix error return code in hil_dev_connect() mtd: partitions: redboot: seek fis-index-block in the right node char: pcmcia: error out if 'num_bytes_read' is greater than 4 in set_protocol() firmware: stratix10-svc: Fix a resource leak in an error handling path tty: nozomi: Fix the error handling path of 'nozomi_card_init()' leds: lm3532: select regmap I2C API leds: lm36274: cosmetic: rename lm36274_data to chip leds: lm3692x: Put fwnode in any case during ->probe() scsi: FlashPoint: Rename si_flags field fsi: core: Fix return of error values on failures fsi: scom: Reset the FSI2PIB engine for any error fsi: occ: Don't accept response from un-initialized OCC fsi/sbefifo: Clean up correct FIFO when receiving reset request from SBE fsi/sbefifo: Fix reset timeout visorbus: fix error return code in visorchipset_init() s390: appldata depends on PROC_SYSCTL iommu/dma: Fix IOVA reserve dma ranges ASoC: mediatek: mtk-btcvsd: Fix an error handling path in 'mtk_btcvsd_snd_probe()' usb: gadget: f_fs: Fix setting of device and driver data cross-references usb: dwc2: Don't reset the core after setting turnaround time eeprom: idt_89hpesx: Put fwnode in matching case during ->probe() eeprom: idt_89hpesx: Restore printing the unsupported fwnode name iio: at91-sama5d2_adc: remove usage of iio_priv_to_dev() helper iio: adc: at91-sama5d2: Fix buffer alignment in iio_push_to_buffers_with_timestamp() iio: adc: hx711: Fix buffer alignment in iio_push_to_buffers_with_timestamp() iio: adc: mxs-lradc: Fix buffer alignment in iio_push_to_buffers_with_timestamp() iio: adc: ti-ads8688: Fix alignment of buffer in iio_push_to_buffers_with_timestamp() iio: magn: rm3100: Fix alignment of buffer in iio_push_to_buffers_with_timestamp() staging: gdm724x: check for buffer overflow in gdm_lte_multi_sdu_pkt() staging: gdm724x: check for overflow in gdm_lte_netif_rx() staging: rtl8712: remove redundant check in r871xu_drv_init staging: rtl8712: fix memory leak in rtl871x_load_fw_cb staging: mt7621-dts: fix pci address for PCI memory range serial: 8250: Actually allow UPF_MAGIC_MULTIPLIER baud rates iio: light: vcnl4035: Fix buffer alignment in iio_push_to_buffers_with_timestamp() iio: prox: isl29501: Fix buffer alignment in iio_push_to_buffers_with_timestamp() ASoC: cs42l42: Correct definition of CS42L42_ADC_PDN_MASK of: Fix truncation of memory sizes on 32-bit platforms mtd: rawnand: marvell: add missing clk_disable_unprepare() on error in marvell_nfc_resume() scsi: mpt3sas: Fix error return value in _scsih_expander_add() soundwire: stream: Fix test for DP prepare complete phy: uniphier-pcie: Fix updating phy parameters phy: ti: dm816x: Fix the error handling path in 'dm816x_usb_phy_probe() extcon: sm5502: Drop invalid register write in sm5502_reg_data extcon: max8997: Add missing modalias string ASoC: atmel-i2s: Fix usage of capture and playback at the same time configfs: fix memleak in configfs_release_bin_file leds: as3645a: Fix error return code in as3645a_parse_node() leds: ktd2692: Fix an error handling path powerpc: Offline CPU in stop_this_cpu() serial: mvebu-uart: do not allow changing baudrate when uartclk is not available serial: mvebu-uart: correctly calculate minimal possible baudrate arm64: dts: marvell: armada-37xx: Fix reg for standard variant of UART vfio/pci: Handle concurrent vma faults mm/huge_memory.c: don't discard hugepage if other processes are mapping it mm/z3fold: fix potential memory leak in z3fold_destroy_pool() selftests/vm/pkeys: fix alloc_random_pkey() to make it really, really random perf llvm: Return -ENOMEM when asprintf() fails scsi: target: cxgbit: Unmap DMA buffer before calling target_execute_cmd() block: return the correct bvec when checking for gaps mmc: block: Disable CMDQ on the ioctl path mmc: vub3000: fix control-request direction scsi: core: Retry I/O for Notify (Enable Spinup) Required error iommu/dma: Fix compile warning in 32-bit builds Linux 5.4.132 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I36eef11d7d5fed3388f0c90904a4e9c495327826	2021-07-14 17:12:58 +02:00
Boqun Feng	2ef6cd6e48	lockding/lockdep: Avoid to find wrong lock dep path in check_irq_usage() ... [ Upstream commit 7b1f8c6179769af6ffa055e1169610b51d71edd5 ] In the step #3 of check_irq_usage(), we seach backwards to find a lock whose usage conflicts the usage of @target_entry1 on safe/unsafe. However, we should only keep the irq-unsafe usage of @target_entry1 into consideration, because it could be a case where a lock is hardirq-unsafe but soft-safe, and in check_irq_usage() we find it because its hardirq-unsafe could result into a hardirq-safe-unsafe deadlock, but currently since we don't filter out the other usage bits, so we may find a lock dependency path softirq-unsafe -> softirq-safe, which in fact doesn't cause a deadlock. And this may cause misleading lockdep splats. Fix this by only keeping LOCKF_ENABLED_IRQ_ALL bits when we try the backwards search. Reported-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20210618170110.3699115-4-boqun.feng@gmail.com Signed-off-by: Sasha Levin <sashal@kernel.org>	2021-07-14 16:53:15 +02:00
Boqun Feng	1b45a85262	locking/lockdep: Fix the dep path printing for backwards BFS ... [ Upstream commit 69c7a5fb2482636f525f016c8333fdb9111ecb9d ] We use the same code to print backwards lock dependency path as the forwards lock dependency path, and this could result into incorrect printing because for a backwards lock_list ->trace is not the call trace where the lock of ->class is acquired. Fix this by introducing a separate function on printing the backwards dependency path. Also add a few comments about the printing while we are at it. Reported-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lore.kernel.org/r/20210618170110.3699115-2-boqun.feng@gmail.com Signed-off-by: Sasha Levin <sashal@kernel.org>	2021-07-14 16:53:15 +02:00
Greg Kroah-Hartman	aac2ba64ab	This is the 5.4.122 stable release ... -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAmCuHYEACgkQONu9yGCS aT6VkxAAr0kISsNHDXB1tDLsOiPsl+hvFQS7DNw8LRpBN8deqiOMrK2OGnXygAWE q6554BmS7sxJ9oSu4fL+fJpuSTdMPsDEGh5qFFXqdb0wjxw9QaHK1SPbLO0QRMmt OPH9tHtNKY9Udiu1ZXj/HHWkUf41VjBwIUpa1riP1ht7WCPPFAF0yeUjEMDB3ZNe m8CkSDWS6NqFQxQcYBWLTVufVSVyu+MkJS0t50KDQEZFv/12pSRllkJ3M/RdBxNV hvQTIFJr/3jPmk9Q5Vt0ZG2mKCtObYcboDxs5tfKVd03uErMqcchFMpL7DGXBBFx S77URkYra6nJvJJB533SiWYR3zKcihnl8eMmV4NqCTgR+pjf2G7MMEqxJhADvhGu wg5IGqMJID2p7nlkPZtod4pap3VY1zkotKdeTjUm6URnf5G9JkgdvqTUsCPQPuEm WIlEqziZSZxy3bj8mm88116+TyDDb7b9Hu0rz3qYYDOBon2r0uZ+SyfeSD76csnS ncEr2XVSlV12g2WQP/zB+ypLQ8YDJpYcyhAdNS2VQIFgjSxODBUEb76zYYqNHTQC PUrztFbbwJ/iH/SXQjzuRsRB3x4XwNCmRGwTMXTaZYot8ui9Ka4gDY+mZ8T0uTS8 68sFCzb+M+zQf1i72s6Vp9dz5msymSbDQbIf79fJ3lbDA4oVXnA= =vILd -----END PGP SIGNATURE----- Merge 5.4.122 into android11-5.4-lts Changes in 5.4.122 firmware: arm_scpi: Prevent the ternary sign expansion bug openrisc: Fix a memory leak RDMA/siw: Properly check send and receive CQ pointers RDMA/siw: Release xarray entry RDMA/rxe: Clear all QP fields if creation failed scsi: ufs: core: Increase the usable queue depth scsi: qla2xxx: Fix error return code in qla82xx_write_flash_dword() RDMA/mlx5: Recover from fatal event in dual port mode RDMA/core: Don't access cm_id after its destruction platform/mellanox: mlxbf-tmfifo: Fix a memory barrier issue platform/x86: dell-smbios-wmi: Fix oops on rmmod dell_smbios RDMA/uverbs: Fix a NULL vs IS_ERR() bug ptrace: make ptrace() fail if the tracee changed its pid unexpectedly nvmet: seset ns->file when open fails locking/mutex: clear MUTEX_FLAGS if wait_list is empty due to signal btrfs: avoid RCU stalls while running delayed iputs cifs: fix memory leak in smb2_copychunk_range ALSA: dice: fix stream format for TC Electronic Konnekt Live at high sampling transfer frequency ALSA: intel8x0: Don't update period unless prepared ALSA: line6: Fix racy initialization of LINE6 MIDI ALSA: dice: fix stream format at middle sampling rate for Alesis iO 26 ALSA: firewire-lib: fix calculation for size of IR context payload ALSA: usb-audio: Validate MS endpoint descriptors ALSA: bebob/oxfw: fix Kconfig entry for Mackie d.2 Pro ALSA: hda: fixup headset for ASUS GU502 laptop Revert "ALSA: sb8: add a check for request_region" ALSA: firewire-lib: fix check for the size of isochronous packet payload ALSA: hda/realtek: reset eapd coeff to default value for alc287 ALSA: hda/realtek: Add some CLOVE SSIDs of ALC293 ALSA: hda/realtek: Fix silent headphone output on ASUS UX430UA ALSA: hda/realtek: Add fixup for HP OMEN laptop ALSA: hda/realtek: Add fixup for HP Spectre x360 15-df0xxx uio_hv_generic: Fix a memory leak in error handling paths Revert "rapidio: fix a NULL pointer dereference when create_workqueue() fails" rapidio: handle create_workqueue() failure Revert "serial: mvebu-uart: Fix to avoid a potential NULL pointer dereference" drm/amdgpu: disable 3DCGCG on picasso/raven1 to avoid compute hang drm/amdgpu: update gc golden setting for Navi12 drm/amdgpu: update sdma golden setting for Navi12 mmc: sdhci-pci-gli: increase 1.8V regulator wait xen-pciback: reconfigure also from backend watch handler dm snapshot: fix crash with transient storage and zero chunk size Revert "video: hgafb: fix potential NULL pointer dereference" Revert "net: stmicro: fix a missing check of clk_prepare" Revert "leds: lp5523: fix a missing check of return value of lp55xx_read" Revert "hwmon: (lm80) fix a missing check of bus read in lm80 probe" Revert "video: imsttfb: fix potential NULL pointer dereferences" Revert "ecryptfs: replace BUG_ON with error handling code" Revert "scsi: ufs: fix a missing check of devm_reset_control_get" Revert "gdrom: fix a memory leak bug" cdrom: gdrom: deallocate struct gdrom_unit fields in remove_gdrom cdrom: gdrom: initialize global variable at init time Revert "media: rcar_drif: fix a memory disclosure" Revert "rtlwifi: fix a potential NULL pointer dereference" Revert "qlcnic: Avoid potential NULL pointer dereference" Revert "niu: fix missing checks of niu_pci_eeprom_read" ethernet: sun: niu: fix missing checks of niu_pci_eeprom_read() net: stmicro: handle clk_prepare() failure during init scsi: ufs: handle cleanup correctly on devm_reset_control_get error net: rtlwifi: properly check for alloc_workqueue() failure ics932s401: fix broken handling of errors when word reading fails leds: lp5523: check return value of lp5xx_read and jump to cleanup code qlcnic: Add null check after calling netdev_alloc_skb video: hgafb: fix potential NULL pointer dereference vgacon: Record video mode changes with VT_RESIZEX vt: Fix character height handling with VT_RESIZEX tty: vt: always invoke vc->vc_sw->con_resize callback nvme-multipath: fix double initialization of ANA state ext4: fix error handling in ext4_end_enable_verity() Bluetooth: L2CAP: Fix handling LE modes by L2CAP_OPTIONS nvmet: use new ana_log_size instead the old one video: hgafb: correctly handle card detect failure during probe Bluetooth: SMP: Fail if remote and local public keys are identical Linux 5.4.122 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Ib3df731ada0e576ded0aa2c28ca6cf507ab6c08f	2021-05-28 13:26:18 +02:00
Zqiang	845c2b9d99	locking/mutex: clear MUTEX_FLAGS if wait_list is empty due to signal ... [ Upstream commit 3a010c493271f04578b133de977e0e5dd2848cea ] When a interruptible mutex locker is interrupted by a signal without acquiring this lock and removed from the wait queue. if the mutex isn't contended enough to have a waiter put into the wait queue again, the setting of the WAITER bit will force mutex locker to go into the slowpath to acquire the lock every time, so if the wait queue is empty, the WAITER bit need to be clear. Fixes: 040a0a3710 ("mutex: Add support for wound/wait style locks") Suggested-by: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Zqiang <qiang.zhang@windriver.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20210517034005.30828-1-qiang.zhang@windriver.com Signed-off-by: Sasha Levin <sashal@kernel.org>	2021-05-26 12:05:15 +02:00
Greg Kroah-Hartman	fd2c566ebc	This is the 5.4.115 stable release ... -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAmCJRSsACgkQONu9yGCS aT4oBw//cuCRj7W9NCuU/n582jrtMTJ6r/hbC3+CG8bYxWyA9e8WrqVEuasHiHzQ +TNC86rdtzch+Ws9txww2Q/Cg316M9GfXonL+PGx4xtPr2UG0fs0pdnpaTqESd5V QYz3hYtfMDvavuIGpLeYqRvUmxXQDVWeTNbpmmbSs0qmICUgQZ4sxGBVdhTnkQ3U 8C1U0K5rkHztWLA/VJR5SrcFzNEXJUECq6LUPBSNBe90HCLBiP9kE98FUG1vVYdM 2fJ68v01p9D2lYUL9DY43ncpk1+2r1fzj3NNhhlKmjgbmvpzLHbdFt/W5BpcZvYP v4Tx0x7n0f1E7KW7/42DeMYENTDMGgT+6NMLJUCR7KJ0V/sfaXSppm9uYnFGtX2v 21tu5vz2IO/+070IT5iMdp2AARPvt4KBb+Be4pm58fzgJf59QFFoYZdGiPxY2/ga AkfwGxOPXHLe9BhRDl9lZnOzjRKSy3eRK0SGj+ctn2p03O8DNn/1P4Hd4imbtRSx 4bS+oEn3NrUod2pdjK6ZPFKVguYrbqKirQHtIKKE2Fk8Gfcz5/6+31VshXqpnqek D6d7wRSGYhjcZ33/jyGLkUs0vh5zNPr/c0Dtx3yDYdGot07LxXS1iSoHcG+qYjsq iCFve2twzdvtLQb80eSb2HvdBxp8uxzyLz4IITM4KcrU39YAxbw= =/d/n -----END PGP SIGNATURE----- Merge 5.4.115 into android11-5.4-lts Changes in 5.4.115 s390/ptrace: return -ENOSYS when invalid syscall is supplied gpio: omap: Save and restore sysconfig pinctrl: lewisburg: Update number of pins in community arm64: dts: allwinner: Revert SD card CD GPIO for Pine64-LTS locking/qrwlock: Fix ordering in queued_write_lock_slowpath() perf/x86/intel/uncore: Remove uncore extra PCI dev HSWEP_PCI_PCU_3 perf/x86/kvm: Fix Broadwell Xeon stepping in isolation_ucodes[] perf auxtrace: Fix potential NULL pointer dereference HID: google: add don USB id HID: alps: fix error return code in alps_input_configured() HID: wacom: Assign boolean values to a bool variable ARM: dts: Fix swapped mmc order for omap3 net: geneve: check skb is large enough for IPv4/IPv6 header s390/entry: save the caller of psw_idle xen-netback: Check for hotplug-status existence before watching cavium/liquidio: Fix duplicate argument csky: change a Kconfig symbol name to fix e1000 build error ia64: fix discontig.c section mismatches ia64: tools: remove duplicate definition of ia64_mf() on ia64 x86/crash: Fix crash_setup_memmap_entries() out-of-bounds access net: hso: fix NULL-deref on disconnect regression USB: CDC-ACM: fix poison/unpoison imbalance Linux 5.4.115 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I78fcd7c6304d8b43f59b9ab5a88499e1355a04ba	2021-04-29 08:54:49 +02:00
Ali Saidi	82808cc026	locking/qrwlock: Fix ordering in queued_write_lock_slowpath() ... [ Upstream commit 84a24bf8c52e66b7ac89ada5e3cfbe72d65c1896 ] While this code is executed with the wait_lock held, a reader can acquire the lock without holding wait_lock. The writer side loops checking the value with the atomic_cond_read_acquire(), but only truly acquires the lock when the compare-and-exchange is completed successfully which isn’t ordered. This exposes the window between the acquire and the cmpxchg to an A-B-A problem which allows reads following the lock acquisition to observe values speculatively before the write lock is truly acquired. We've seen a problem in epoll where the reader does a xchg while holding the read lock, but the writer can see a value change out from under it. Writer | Reader -------------------------------------------------------------------------------- ep_scan_ready_list() | |- write_lock_irq() | |- queued_write_lock_slowpath() | |- atomic_cond_read_acquire() | | read_lock_irqsave(&ep->lock, flags); --> (observes value before unlock) | chain_epi_lockless() | | epi->next = xchg(&ep->ovflist, epi); | | read_unlock_irqrestore(&ep->lock, flags); | | | atomic_cmpxchg_relaxed() | |-- READ_ONCE(ep->ovflist); | A core can order the read of the ovflist ahead of the atomic_cmpxchg_relaxed(). Switching the cmpxchg to use acquire semantics addresses this issue at which point the atomic_cond_read can be switched to use relaxed semantics. Fixes: b519b56e37 ("locking/qrwlock: Use atomic_cond_read_acquire() when spinning in qrwlock") Signed-off-by: Ali Saidi <alisaidi@amazon.com> [peterz: use try_cmpxchg()] Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Steve Capper <steve.capper@arm.com> Acked-by: Will Deacon <will@kernel.org> Acked-by: Waiman Long <longman@redhat.com> Tested-by: Steve Capper <steve.capper@arm.com> Signed-off-by: Sasha Levin <sashal@kernel.org>	2021-04-28 13:19:14 +02:00
Greg Kroah-Hartman	8fd4b0daa5	This is the 5.4.114 stable release ... -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAmCABPYACgkQONu9yGCS aT610xAAuFVE0FEaisv42yiS/jNtZk8NpPuBSaB1vP9TOyn1PyrO4p2klUdrFrLX 2d7ssYKZimDS4HB0lmr6tPXjQCuI3E2qB3s9mJntEZuxjweLR22uLC7DtWo4VDYt 87oM+jaWMao+3YOXpvbd2S8tA/WkvaBbYmXAGsO2XFoyUPhzxBXi+Mzoj5WeGPtc bQd+Odt1n00HJSyuSlXaBeuwzVHLq43Kxm2kKt7lBH3W1IKElRnw84XJAHAylDZ4 EwIkgncGm7EN25Nk9EESC0cvCBM6PK61S7CggOtcvyrPGRBqFlmbDKFxLT2BxIdP MuyXLvHRm6/oQb1brvWdeHw0++KwJ884HJF2/bB9ZXU8wCR317BA3dYMdSMvv7V3 3zickdfoPW8c5H/8t+BobGJoHFQ895xrwxAcQGR8oBtfjqo4JGd+9QnoEdaXb/7o 0t36qJLFYVKfkaeTxOTyQeImw79KVv4T/hXlwPBkdBu/yC8kfVL6ckJ+MfL1LH4B BkDMT5K/Fyp3HIyNakiB9c0s9ZgdvCI0hpZvEXX69VmEVnoEokxcQXc0YHvqMpz6 neH8snkuWc2fQhsSa4hkhcmx50ohTd5MQPJ7Fp8sx4NrLJ1aJNvG1YhWqJCNkRBx TRWSB7ipf+mesMHn4RIXINHmgvxpHHP/B6O3DvtSJPjZBtpImWw= =Xqnx -----END PGP SIGNATURE----- Merge 5.4.114 into android11-5.4-lts Changes in 5.4.114 Revert "scsi: qla2xxx: Retry PLOGI on FC-NVMe PRLI failure" Revert "scsi: qla2xxx: Fix stuck login session using prli_pend_timer" scsi: qla2xxx: Dual FCP-NVMe target port support scsi: qla2xxx: Fix device connect issues in P2P configuration scsi: qla2xxx: Retry PLOGI on FC-NVMe PRLI failure scsi: qla2xxx: Add a shadow variable to hold disc_state history of fcport scsi: qla2xxx: Fix stuck login session using prli_pend_timer scsi: qla2xxx: Fix fabric scan hang net/sctp: fix race condition in sctp_destroy_sock Input: nspire-keypad - enable interrupts only when opened gpio: sysfs: Obey valid_mask dmaengine: dw: Make it dependent to HAS_IOMEM ARM: dts: Drop duplicate sha2md5_fck to fix clk_disable race ARM: dts: Fix moving mmc devices with aliases for omap4 & 5 lockdep: Add a missing initialization hint to the "INFO: Trying to register non-static key" message arc: kernel: Return -EFAULT if copy_to_user() fails ASoC: max98373: Added 30ms turn on/off time delay neighbour: Disregard DEAD dst in neigh_update ARM: keystone: fix integer overflow warning ARM: omap1: fix building with clang IAS drm/msm: Fix a5xx/a6xx timestamps ASoC: fsl_esai: Fix TDM slot setup for I2S mode scsi: scsi_transport_srp: Don't block target in SRP_PORT_LOST state net: ieee802154: stop dump llsec keys for monitors net: ieee802154: forbid monitor for add llsec key net: ieee802154: forbid monitor for del llsec key net: ieee802154: stop dump llsec devs for monitors net: ieee802154: forbid monitor for add llsec dev net: ieee802154: forbid monitor for del llsec dev net: ieee802154: stop dump llsec devkeys for monitors net: ieee802154: forbid monitor for add llsec devkey net: ieee802154: forbid monitor for del llsec devkey net: ieee802154: stop dump llsec seclevels for monitors net: ieee802154: forbid monitor for add llsec seclevel pcnet32: Use pci_resource_len to validate PCI resource mac80211: clear sta->fast_rx when STA removed from 4-addr VLAN virt_wifi: Return micros for BSS TSF values Input: s6sy761 - fix coordinate read bit shift Input: i8042 - fix Pegatron C15B ID entry HID: wacom: set EV_KEY and EV_ABS only for non-HID_GENERIC type of devices dm verity fec: fix misaligned RS roots IO readdir: make sure to verify directory entry for legacy interfaces too arm64: fix inline asm in load_unaligned_zeropad() arm64: alternatives: Move length validation in alternative_{insn, endif} vfio/pci: Add missing range check in vfio_pci_mmap riscv: Fix spelling mistake "SPARSEMEM" to "SPARSMEM" scsi: libsas: Reset num_scatter if libata marks qc as NODATA netfilter: conntrack: do not print icmpv6 as unknown via /proc libnvdimm/region: Fix nvdimm_has_flush() to handle ND_REGION_ASYNC netfilter: bridge: add pre_exit hooks for ebtable unregistration netfilter: arp_tables: add pre_exit hook for table unregister net: macb: fix the restore of cmp registers netfilter: nft_limit: avoid possible divide error in nft_limit_init net: davicom: Fix regulator not turned off on failed probe net: sit: Unregister catch-all devices net: ip6_tunnel: Unregister catch-all devices i40e: fix the panic when running bpf in xdpdrv mode ibmvnic: avoid calling napi_disable() twice ibmvnic: remove duplicate napi_schedule call in do_reset function ibmvnic: remove duplicate napi_schedule call in open function gro: ensure frag0 meets IP header alignment ARM: footbridge: fix PCI interrupt mapping arm64: dts: allwinner: Fix SD card CD GPIO for SOPine systems r8169: remove fiddling with the PCIe max read request size r8169: simplify setting PCI_EXP_DEVCTL_NOSNOOP_EN r8169: fix performance regression related to PCIe max read request size r8169: improve rtl_jumbo_config r8169: tweak max read request size for newer chips also in jumbo mtu mode r8169: don't advertise pause in jumbo mode ARM: 9071/1: uprobes: Don't hook on thumb instructions net: phy: marvell: fix detection of PHY on Topaz switches Linux 5.4.114 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I6de0e60e2781e020d93ea5dfaea2c1b6049b120c	2021-04-22 13:31:06 +02:00
Tetsuo Handa	68bd0d8ab1	lockdep: Add a missing initialization hint to the "INFO: Trying to register non-static key" message ... [ Upstream commit 3a85969e9d912d5dd85362ee37b5f81266e00e77 ] Since this message is printed when dynamically allocated spinlocks (e.g. kzalloc()) are used without initialization (e.g. spin_lock_init()), suggest to developers to check whether initialization functions for objects were called, before making developers wonder what annotation is missing. [ mingo: Minor tweaks to the message. ] Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lore.kernel.org/r/20210321064913.4619-1-penguin-kernel@I-love.SAKURA.ne.jp Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>	2021-04-21 12:56:13 +02:00
Greg Kroah-Hartman	872e90c982	This is the 5.4.110 stable release ... -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAmBtqhEACgkQONu9yGCS aT4Xbw//SSc6S+So14ND1v6SFI1BvDpAooneM7qsNxh4OU53be/tJba0XosHu6B1 Wk8fnNFtoDokfuHWHgQJ0g97SgOlHTnSs+wBGVa2Z0o+446Gf7FIFaH16QKVM7pC 1t1Y3zxVJ6cKNhGJUOXNrCF+ktPHAAaugxPmFhiX9lacSnt9aKKjJUwgm/5OIPO1 fbY3VcoaxAGPzqOuKE66nMLZwdLHs7ZNK74OGfr6oog+Rt6ZHwmto/AGdueZQmHh cwxPQwkkMWDf7ebihE/19YPWN6etCg7VNjYeGxZmy2c5Zar8mzr9Qi7HbpZOJsn1 BUzWRX1fMi7DAvRUUQrCR01zAjP9uGCeny4NwnRjWl0PvD69AOQu/EWO7yp3Iy5e DmwHSHrH3p1JtJd0cxrDA5F2IjGu/FtiahrpJzqphBdGWDvKhdE4tQK4uZsGp/F2 rdy4PI9ksy+YnJeXb/w/yRhm/tlzUwelfc/YuW31Y1l40XQRpm3IlZPCLpgswBhU MYHuVX2WCG5I7Rw88SU1995GypwLOtR3LxvBwUsbnQcwLGaJbd5S/2g/4Ad8MlyT x3ROfoOIwPcEh+sTe4nTstisEkZFE/nQBnAvkhS567LMDdpPxy5Lho51XpFk3Au2 YSkHhb5OrwZ7pXhAdp4JeQtfmL11v9y5V/wY53iDYIWZWSXUqwI= =K+tH -----END PGP SIGNATURE----- Merge 5.4.110 into android11-5.4-lts Changes in 5.4.110 selinux: vsock: Set SID for socket returned by accept() ipv6: weaken the v4mapped source check modsign: print module name along with error message module: merge repetitive strings in module_sig_check() module: avoid *goto*s in module_sig_check() module: harden ELF info handling ext4: shrink race window in ext4_should_retry_alloc() ext4: fix bh ref count on error paths fs: nfsd: fix kconfig dependency warning for NFSD_V4 rpc: fix NULL dereference on kmalloc failure iomap: Fix negative assignment to unsigned sis->pages in iomap_swapfile_activate ASoC: rt5640: Fix dac- and adc- vol-tlv values being off by a factor of 10 ASoC: rt5651: Fix dac- and adc- vol-tlv values being off by a factor of 10 ASoC: sgtl5000: set DAP_AVC_CTRL register to correct default value on probe ASoC: es8316: Simplify adc_pga_gain_tlv table ASoC: cs42l42: Fix Bitclock polarity inversion ASoC: cs42l42: Fix channel width support ASoC: cs42l42: Fix mixer volume control ASoC: cs42l42: Always wait at least 3ms after reset NFSD: fix error handling in NFSv4.0 callbacks powerpc: Force inlining of cpu_has_feature() to avoid build failure vhost: Fix vhost_vq_reset() scsi: st: Fix a use after free in st_open() scsi: qla2xxx: Fix broken #endif placement staging: comedi: cb_pcidas: fix request_irq() warn staging: comedi: cb_pcidas64: fix request_irq() warn ASoC: rt5659: Update MCLK rate in set_sysclk() thermal/core: Add NULL pointer check before using cooling device stats locking/ww_mutex: Simplify use_ww_ctx & ww_ctx handling ext4: do not iput inode under running transaction in ext4_rename() net: mvpp2: fix interrupt mask/unmask skip condition flow_dissector: fix TTL and TOS dissection on IPv4 fragments can: dev: move driver related infrastructure into separate subdir net: introduce CAN specific pointer in the struct net_device can: tcan4x5x: fix max register value brcmfmac: clear EAP/association status bits on linkdown events ath10k: hold RCU lock when calling ieee80211_find_sta_by_ifaddr() net: ethernet: aquantia: Handle error cleanup of start on open appletalk: Fix skb allocation size in loopback case net: wan/lmc: unregister device when no matching device is found bpf: Remove MTU check in __bpf_skb_max_len ALSA: usb-audio: Apply sample rate quirk to Logitech Connect ALSA: hda: Re-add dropped snd_poewr_change_state() calls ALSA: hda: Add missing sanity checks in PM prepare/complete callbacks ALSA: hda/realtek: fix a determine_headset_type issue for a Dell AIO ALSA: hda/realtek: call alc_update_headset_mode() in hp_automute_hook xtensa: move coprocessor_flush to the .text section PM: runtime: Fix race getting/putting suppliers at probe PM: runtime: Fix ordering in pm_runtime_get_suppliers() tracing: Fix stack trace event size mm: fix race by making init_zero_pfn() early_initcall drm/amdgpu: fix offset calculation in amdgpu_vm_bo_clear_mappings() drm/amdgpu: check alignment on CPU page for bo map reiserfs: update reiserfs_xattrs_initialized() condition vfio/nvlink: Add missing SPAPR_TCE_IOMMU depends pinctrl: rockchip: fix restore error in resume extcon: Add stubs for extcon_register_notifier_all() functions extcon: Fix error handling in extcon_dev_register firewire: nosy: Fix a use-after-free bug in nosy_ioctl() usbip: vhci_hcd fix shift out-of-bounds in vhci_hub_control() USB: quirks: ignore remote wake-up on Fibocom L850-GL LTE modem usb: musb: Fix suspend with devices connected for a64 usb: xhci-mtk: fix broken streams issue on 0.96 xHCI cdc-acm: fix BREAK rx code path adding necessary calls USB: cdc-acm: untangle a circular dependency between callback and softint USB: cdc-acm: downgrade message to debug USB: cdc-acm: fix double free on probe failure USB: cdc-acm: fix use-after-free after probe failure usb: gadget: udc: amd5536udc_pci fix null-ptr-dereference usb: dwc2: Fix HPRT0.PrtSusp bit setting for HiKey 960 board. usb: dwc2: Prevent core suspend when port connection flag is 0 staging: rtl8192e: Fix incorrect source in memcpy() staging: rtl8192e: Change state information from u16 to u8 drivers: video: fbcon: fix NULL dereference in fbcon_cursor() Linux 5.4.110 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I867de89d2bfff87243e84dc39386c4a8f7ff8ad3	2021-04-07 15:05:05 +02:00
Waiman Long	5e39a73e47	locking/ww_mutex: Simplify use_ww_ctx & ww_ctx handling ... [ Upstream commit 5de2055d31ea88fd9ae9709ac95c372a505a60fa ] The use_ww_ctx flag is passed to mutex_optimistic_spin(), but the function doesn't use it. The frequent use of the (use_ww_ctx && ww_ctx) combination is repetitive. In fact, ww_ctx should not be used at all if !use_ww_ctx. Simplify ww_mutex code by dropping use_ww_ctx from mutex_optimistic_spin() an clear ww_ctx if !use_ww_ctx. In this way, we can replace (use_ww_ctx && ww_ctx) by just (ww_ctx). Signed-off-by: Waiman Long <longman@redhat.com> Signed-off-by: Ingo Molnar <mingo@kernel.org> Acked-by: Davidlohr Bueso <dbueso@suse.de> Link: https://lore.kernel.org/r/20210316153119.13802-2-longman@redhat.com Signed-off-by: Sasha Levin <sashal@kernel.org>	2021-04-07 14:47:40 +02:00
Greg Kroah-Hartman	b864998189	This is the 5.4.94 stable release ... -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAmAVVv0ACgkQONu9yGCS aT5vaRAAsoiWjnLU4dvziu92SDIdp+NdIZzXTT+v0FtEORbfaLjQ72XVYH3cIui7 4ohxdMdUvlhFNRZr4B3+8GDogbL2vQMBNlODcpmVMX4iW4QUCCe/JwMt3cDogOA4 UUTLQ78c248W3gKYE6WmelhBVee1H2XIZOUAehR7+wA2m9wmUPXK11ab917Lkold IHO7yW476kJdDfeISnixcZvt+vg9MHjkmRR83s6Unjwe9Ot4AWw3KkaYFYmGzLU1 f5wZSovK76y4bpk3pkPbGw1udhubukHmUyH2bIWdb+M+ZTBKeEwkzadbxanuvlYa oaFPCjxE0z4Tmyqp7DhYf4OYECLvvuDBsFVxGrJGQfE5b4364SYSJVLn1J6scjei AjTLPtTwvB/pESX0MYNPohwTCeqqHDQbqNqqR0YtUMDfopC2JhvbibFksRvTYpRX ZWSi4xgaybFSsLEFvcNtjMBVJcHaOTeHYnun4xSRUrtFtbJd4fOcO6ubniIteeXr RIjcEo3vy0Vo/WYdn+830dZNkgASjv6Xct5N3TkaUHiAAPrhE1IzN17Rg0fQqYwT 5QWW8Gxy0dbykQ6gvOw2BoQ12t91gaNQTtqzpy7Oxy7XpipU0xUZgboOxnblNOoS myFB6gdrJg2NjpUT0tK+w5Bd0Bzo5rMKGQW2hHJDLJLuLmFmO38= =Dtks -----END PGP SIGNATURE----- Merge 5.4.94 into android11-5.4-lts Changes in 5.4.94 gpio: mvebu: fix pwm .get_state period calculation Revert "mm/slub: fix a memory leak in sysfs_slab_add()" futex: Ensure the correct return value from futex_lock_pi() futex: Replace pointless printk in fixup_owner() futex: Provide and use pi_state_update_owner() rtmutex: Remove unused argument from rt_mutex_proxy_unlock() futex: Use pi_state_update_owner() in put_pi_state() futex: Simplify fixup_pi_state_owner() futex: Handle faults correctly for PI futexes HID: wacom: Correct NULL dereference on AES pen proximity io_uring: Fix current->fs handling in io_sq_wq_submit_work() tracing: Fix race in trace_open and buffer resize call arm64: mm: use single quantity to represent the PA to VA translation SMB3.1.1: do not log warning message if server doesn't populate salt tools: Factor HOSTCC, HOSTLD, HOSTAR definitions dm integrity: conditionally disable "recalculate" feature writeback: Drop I_DIRTY_TIME_EXPIRE fs: fix lazytime expiration handling in __writeback_single_inode() Linux 5.4.94 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Ieb10c903d279aba03ac5686a46116e7e2f7cd500	2021-02-01 12:44:59 +01:00
Thomas Gleixner	ceb83cf9ed	rtmutex: Remove unused argument from rt_mutex_proxy_unlock() ... commit 2156ac1934166d6deb6cd0f6ffc4c1076ec63697 upstream Nothing uses the argument. Remove it as preparation to use pi_state_update_owner(). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>	2021-01-30 13:54:09 +01:00
Greg Kroah-Hartman	b406f3680f	Revert "rwsem: Implement down_read_killable_nested" ... This reverts commit 1b75a263fb which is commit 0f9368b5bf6db0c04afc5454b1be79022a681615 upstream. It breaks the API and we don't need it right now in the 5.4 tree. Bug: 161946584 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I6796b91eebb961df9501b8867eec76a265724c3c	2021-01-11 14:47:10 +01:00
Greg Kroah-Hartman	cb34b1a3bc	Revert "rwsem: Implement down_read_interruptible" ... This reverts commit d390fc97df which is commit 31784cff7ee073b34d6eddabb95e3be2880a425c upstream. It breaks the API and we don't need it right now in the 5.4 tree. Bug: 161946584 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I5b47edd0c3e8370136dbba6a1df1ae8dcb0205bf	2021-01-11 14:46:52 +01:00
Greg Kroah-Hartman	116bf1afff	Revert "exec: Transform exec_update_mutex into a rw_semaphore" ... This reverts commit 117433236a which is commit f7cfd871ae0c5008d94b6f66834e7845caa93c15 upstream. It breaks the API and we don't need it right now in the 5.4 tree. Bug: 161946584 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Ia4d89b6dfbb92d6bd48b36b1f85559a8dfb331c6	2021-01-11 14:32:43 +01:00
Greg Kroah-Hartman	51e9c21c50	This is the 5.4.88 stable release ... -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAl/5pXIACgkQONu9yGCS aT5t7hAAqNuPKftShc3L/8QXk8m1K46Bx3J1s3o+P5vDFiAMVFNq+dKeN4XK9dnQ ePKTdLNW4woYp9laZREfImr4rJADG+AOQ0qVX06XQUkqgvqxBgIbCVWPngB6lUxV ojxjanoIAODo7IMZi2QfzaUVBlZaOpbKJa/Z9cju303k/vp+DJxhNpZ7RUfRiZIH nh3U6FnkTRAyPTi3H7iZteSTOQg4Av+zrDODqK1N9RL9qXwbMxQG9U9pl9XLD0Nb XaQ++ydGEB0dprix3WEe9pe1A1hIKlZ8lslSFYSt5DA3IY3YkKoAQPyhVcsG85YO 1HPiVa71kd4pLhJM3MlWAkunG8ZGf/Bx4Rvjac887HeyhQ8oxu3gFvNZDk2EFIv0 5GDfTOqZEv0Yp32GetM7hcMml3uH1dIG9Ib0iLkuNa6Kopus+Jor7YKrfy93iP2B nlB4LJorSRYNbOA/kEjToKEwA+v8ub4MHO8qBRJpkVtRVGHkR/jKLIyIYdXVXXFi C1emjB3qoRvbKed5mkkWpUhZG1mBDzmTK0Y/XqtbNlZktlolvRS/HTbOmke3G2C6 QWcbXtUZ+SlUM8uMYa0Z8lMMcl2rMHOj+ELg7D2XLOpViMIWbiRxYdLTlFAfKUUu kgwHOUuZa0iouvnmKE8tyypgiR+VAz+k74LOsHn3hHKV5U7203U= =/YH9 -----END PGP SIGNATURE----- Merge 5.4.88 into android11-5.4-lts Changes in 5.4.88 Revert "drm/amd/display: Fix memory leaks in S3 resume" Revert "mtd: spinand: Fix OOB read" dmaengine: at_hdmac: Substitute kzalloc with kmalloc dmaengine: at_hdmac: add missing put_device() call in at_dma_xlate() dmaengine: at_hdmac: add missing kfree() call in at_dma_xlate() kdev_t: always inline major/minor helper functions iio:imu:bmi160: Fix alignment and data leak issues fuse: fix bad inode perf: Break deadlock involving exec_update_mutex rwsem: Implement down_read_killable_nested rwsem: Implement down_read_interruptible exec: Transform exec_update_mutex into a rw_semaphore mwifiex: Fix possible buffer overflows in mwifiex_cmd_802_11_ad_hoc_start Linux 5.4.88 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I2e7792fc0001b7df699b4477fabf97914c0aeceb	2021-01-11 14:29:58 +01:00
Eric W. Biederman	117433236a	exec: Transform exec_update_mutex into a rw_semaphore ... [ Upstream commit f7cfd871ae0c5008d94b6f66834e7845caa93c15 ] Recently syzbot reported[0] that there is a deadlock amongst the users of exec_update_mutex. The problematic lock ordering found by lockdep was: perf_event_open (exec_update_mutex -> ovl_i_mutex) chown (ovl_i_mutex -> sb_writes) sendfile (sb_writes -> p->lock) by reading from a proc file and writing to overlayfs proc_pid_syscall (p->lock -> exec_update_mutex) While looking at possible solutions it occured to me that all of the users and possible users involved only wanted to state of the given process to remain the same. They are all readers. The only writer is exec. There is no reason for readers to block on each other. So fix this deadlock by transforming exec_update_mutex into a rw_semaphore named exec_update_lock that only exec takes for writing. Cc: Jann Horn <jannh@google.com> Cc: Vasiliy Kulikov <segoon@openwall.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Bernd Edlinger <bernd.edlinger@hotmail.de> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Christopher Yeoh <cyeoh@au1.ibm.com> Cc: Cyrill Gorcunov <gorcunov@gmail.com> Cc: Sargun Dhillon <sargun@sargun.me> Cc: Christian Brauner <christian.brauner@ubuntu.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Fixes: eea9673250db ("exec: Add exec_update_mutex to replace cred_guard_mutex") [0] https://lkml.kernel.org/r/00000000000063640c05ade8e3de@google.com Reported-by: syzbot+db9cdf3dd1f64252c6ef@syzkaller.appspotmail.com Link: https://lkml.kernel.org/r/87ft4mbqen.fsf@x220.int.ebiederm.org Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Sasha Levin <sashal@kernel.org>	2021-01-09 13:44:55 +01:00
Eric W. Biederman	d390fc97df	rwsem: Implement down_read_interruptible ... [ Upstream commit 31784cff7ee073b34d6eddabb95e3be2880a425c ] In preparation for converting exec_update_mutex to a rwsem so that multiple readers can execute in parallel and not deadlock, add down_read_interruptible. This is needed for perf_event_open to be converted (with no semantic changes) from working on a mutex to wroking on a rwsem. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/87k0tybqfy.fsf@x220.int.ebiederm.org Signed-off-by: Sasha Levin <sashal@kernel.org>	2021-01-09 13:44:55 +01:00
Eric W. Biederman	1b75a263fb	rwsem: Implement down_read_killable_nested ... [ Upstream commit 0f9368b5bf6db0c04afc5454b1be79022a681615 ] In preparation for converting exec_update_mutex to a rwsem so that multiple readers can execute in parallel and not deadlock, add down_read_killable_nested. This is needed so that kcmp_lock can be converted from working on a mutexes to working on rw_semaphores. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/87o8jabqh3.fsf@x220.int.ebiederm.org Signed-off-by: Sasha Levin <sashal@kernel.org>	2021-01-09 13:44:55 +01:00
Greg Kroah-Hartman	e772bef401	This is the 5.4.69 stable release ... -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAl91u0cACgkQONu9yGCS aT7KmhAAvuW3edfAfzD/F5h4vHaa9rMRmtvp2/FwefBoE4LEi3F6p2gBrUZMA3ds DNQ8Nheafeqd63wFkfE//TXYR0rYTxTxa0jTrhtuJCUZ4+anRyG00fEbHPOxvMnJ aPwQQVNOfCaUAvRbFdQ4RbuIm5chhX8Bml0ZtqvsAAFJ9XkCh1UPF0VHtSrS7PRL lRMBlamLgZqU72naaJaFY2nMp+pvMFPZrzkR7tpv0Z1bqxuJp6L2n/EmcHpmTOJy Ze+Wvt1wKk8Ep5Vql5ekXt5lEiInjacwsJZXbb5HfHO++Y+1b+ABt1kSjJx+R3/q 2Qdztq+9Eoj0N1A4gXdVFoZHqKihhbD49k8YqX4qO5ujTzqgnNyHGSEXyIKvaU6z b3b12IvjbcMhM1zm3qvFfrVbbQI3kJf66zSi9NAwsZHlsvxRzslALR8I7mila4r5 fVOyfGoZxFs44FNW9JG7I85/isAxgg0ogYraMZbk8gmhTtb1ZaN+r7kJeXuTpzOg UBAIDYPclMyZeny6tn1/qFuzNGYQQ0R9kxFcTC21Cf2zNLWHNfwCL1vE3Ob+ROIS IHcsce6IqWQKGlD8UPjkZiXTLfqCAVi51PsGTVrnidXfa1IBOuvDsVqlghPsjHSD 30N4VB++9Gbw7LFEP4e33cOZLBLjDEdYd4VuoQFYywDZ3cy6xXo= =OoZD -----END PGP SIGNATURE----- Merge 5.4.69 into android11-5.4-lts Changes in 5.4.69 kernel/sysctl-test: Add null pointer test for sysctl.c:proc_dointvec() scsi: lpfc: Fix pt2pt discovery on SLI3 HBAs scsi: mpt3sas: Free diag buffer without any status check selinux: allow labeling before policy is loaded media: mc-device.c: fix memleak in media_device_register_entity drm/amd/display: Do not double-buffer DTO adjustments drm/amdkfd: Fix race in gfx10 context restore handler dma-fence: Serialise signal enabling (dma_fence_enable_sw_signaling) scsi: qla2xxx: Add error handling for PLOGI ELS passthrough ath10k: fix array out-of-bounds access ath10k: fix memory leak for tpc_stats_final PCI/IOV: Serialize sysfs sriov_numvfs reads vs writes mm: fix double page fault on arm64 if PTE_AF is cleared scsi: aacraid: fix illegal IO beyond last LBA m68k: q40: Fix info-leak in rtc_ioctl xfs: fix inode fork extent count overflow gma/gma500: fix a memory disclosure bug due to uninitialized bytes ASoC: kirkwood: fix IRQ error handling soundwire: intel/cadence: fix startup sequence media: smiapp: Fix error handling at NVM reading drm/amd/display: Free gamma after calculating legacy transfer function xfs: properly serialise fallocate against AIO+DIO leds: mlxreg: Fix possible buffer overflow dm table: do not allow request-based DM to stack on partitions PM / devfreq: tegra30: Fix integer overflow on CPU's freq max out scsi: fnic: fix use after free scsi: lpfc: Fix kernel crash at lpfc_nvme_info_show during remote port bounce powerpc/64s: Always disable branch profiling for prom_init.o net: silence data-races on sk_backlog.tail dax: Fix alloc_dax_region() compile warning iomap: Fix overflow in iomap_page_mkwrite f2fs: avoid kernel panic on corruption test clk/ti/adpll: allocate room for terminating null drm/amdgpu/powerplay: fix AVFS handling with custom powerplay table ice: Fix to change Rx/Tx ring descriptor size via ethtool with DCBx mtd: cfi_cmdset_0002: don't free cfi->cfiq in error path of cfi_amdstd_setup() mfd: mfd-core: Protect against NULL call-back function pointer drm/amdgpu/powerplay/smu7: fix AVFS handling with custom powerplay table tpm_crb: fix fTPM on AMD Zen+ CPUs tracing: Verify if trace array exists before destroying it. tracing: Adding NULL checks for trace_array descriptor pointer bcache: fix a lost wake-up problem caused by mca_cannibalize_lock dmaengine: mediatek: hsdma_probe: fixed a memory leak when devm_request_irq fails x86/kdump: Always reserve the low 1M when the crashkernel option is specified RDMA/qedr: Fix potential use after free RDMA/i40iw: Fix potential use after free PCI: Avoid double hpmemsize MMIO window assignment fix dget_parent() fastpath race xfs: fix attr leaf header freemap.size underflow RDMA/iw_cgxb4: Fix an error handling path in 'c4iw_connect()' ubi: Fix producing anchor PEBs mmc: core: Fix size overflow for mmc partitions gfs2: clean up iopen glock mess in gfs2_create_inode scsi: pm80xx: Cleanup command when a reset times out mt76: do not use devm API for led classdev mt76: add missing locking around ampdu action debugfs: Fix !DEBUG_FS debugfs_create_automount SUNRPC: Capture completion of all RPC tasks CIFS: Use common error handling code in smb2_ioctl_query_info() CIFS: Properly process SMB3 lease breaks f2fs: stop GC when the victim becomes fully valid ASoC: max98090: remove msleep in PLL unlocked workaround xtensa: fix system_call interaction with ptrace s390: avoid misusing CALL_ON_STACK for task stack setup xfs: fix realtime file data space leak drm/amdgpu: fix calltrace during kmd unload(v3) arm64: insn: consistently handle exit text selftests/bpf: De-flake test_tcpbpf kernel/notifier.c: intercept duplicate registrations to avoid infinite loops kernel/sys.c: avoid copying possible padding bytes in copy_to_user KVM: arm/arm64: vgic: Fix potential double free dist->spis in __kvm_vgic_destroy() module: Remove accidental change of module_enable_x() xfs: fix log reservation overflows when allocating large rt extents ALSA: hda: enable regmap internal locking tipc: fix link overflow issue at socket shutdown vcc_seq_next should increase position index neigh_stat_seq_next() should increase position index rt_cpu_seq_next should increase position index ipv6_route_seq_next should increase position index drm/mcde: Handle pending vblank while disabling display seqlock: Require WRITE_ONCE surrounding raw_seqcount_barrier drm/scheduler: Avoid accessing freed bad job. media: ti-vpe: cal: Restrict DMA to avoid memory corruption opp: Replace list_kref with a local counter scsi: qla2xxx: Fix stuck session in GNL scsi: lpfc: Fix incomplete NVME discovery when target sctp: move trace_sctp_probe_path into sctp_outq_sack ACPI: EC: Reference count query handlers under lock scsi: ufs: Make ufshcd_add_command_trace() easier to read scsi: ufs: Fix a race condition in the tracing code drm/amd/display: Initialize DSC PPS variables to 0 i2c: tegra: Prevent interrupt triggering after transfer timeout btrfs: tree-checker: Check leaf chunk item size dmaengine: zynqmp_dma: fix burst length configuration s390/cpum_sf: Use kzalloc and minor changes nfsd: Fix a soft lockup race in nfsd_file_mark_find_or_create() powerpc/eeh: Only dump stack once if an MMIO loop is detected Bluetooth: btrtl: Use kvmalloc for FW allocations tracing: Set kernel_stack's caller size properly ARM: 8948/1: Prevent OOB access in stacktrace ar5523: Add USB ID of SMCWUSBT-G2 wireless adapter ceph: ensure we have a new cap before continuing in fill_inode selftests/ftrace: fix glob selftest tools/power/x86/intel_pstate_tracer: changes for python 3 compatibility Bluetooth: Fix refcount use-after-free issue mm/swapfile.c: swap_next should increase position index mm: pagewalk: fix termination condition in walk_pte_range() Bluetooth: prefetch channel before killing sock KVM: fix overflow of zero page refcount with ksm running ALSA: hda: Clear RIRB status before reading WP skbuff: fix a data race in skb_queue_len() nfsd: Fix a perf warning drm/amd/display: fix workaround for incorrect double buffer register for DLG ADL and TTU audit: CONFIG_CHANGE don't log internal bookkeeping as an event selinux: sel_avc_get_stat_idx should increase position index scsi: lpfc: Fix RQ buffer leakage when no IOCBs available scsi: lpfc: Fix release of hwq to clear the eq relationship scsi: lpfc: Fix coverity errors in fmdi attribute handling drm/omap: fix possible object reference leak locking/lockdep: Decrement IRQ context counters when removing lock chain clk: stratix10: use do_div() for 64-bit calculation crypto: chelsio - This fixes the kernel panic which occurs during a libkcapi test mt76: clear skb pointers from rx aggregation reorder buffer during cleanup mt76: fix handling full tx queues in mt76_dma_tx_queue_skb_raw ALSA: usb-audio: Don't create a mixer element with bogus volume range perf test: Fix test trace+probe_vfs_getname.sh on s390 RDMA/rxe: Fix configuration of atomic queue pair attributes KVM: x86: fix incorrect comparison in trace event KVM: nVMX: Hold KVM's srcu lock when syncing vmcs12->shadow dmaengine: stm32-mdma: use vchan_terminate_vdesc() in .terminate_all media: staging/imx: Missing assignment in imx_media_capture_device_register() x86/pkeys: Add check for pkey "overflow" bpf: Remove recursion prevention from rcu free callback dmaengine: stm32-dma: use vchan_terminate_vdesc() in .terminate_all dmaengine: tegra-apb: Prevent race conditions on channel's freeing soundwire: bus: disable pm_runtime in sdw_slave_delete drm/amd/display: dal_ddc_i2c_payloads_create can fail causing panic drm/omap: dss: Cleanup DSS ports on initialisation failure iavf: use tc_cls_can_offload_and_chain0() instead of chain check firmware: arm_sdei: Use cpus_read_lock() to avoid races with cpuhp random: fix data races at timer_rand_state bus: hisi_lpc: Fixup IO ports addresses to avoid use-after-free in host removal ASoC: SOF: ipc: check ipc return value before data copy media: go7007: Fix URB type for interrupt handling Bluetooth: guard against controllers sending zero'd events timekeeping: Prevent 32bit truncation in scale64_check_overflow() powerpc/book3s64: Fix error handling in mm_iommu_do_alloc() drm/amd/display: fix image corruption with ODM 2:1 DSC 2 slice ext4: fix a data race at inode->i_disksize perf jevents: Fix leak of mapfile memory mm: avoid data corruption on CoW fault into PFN-mapped VMA drm/amdgpu: increase atombios cmd timeout ARM: OMAP2+: Handle errors for cpu_pm drm/amd/display: Stop if retimer is not available clk: imx: Fix division by zero warning on pfdv2 cpu-topology: Fix the potential data corruption s390/irq: replace setup_irq() by request_irq() perf cs-etm: Swap packets for instruction samples perf cs-etm: Correct synthesizing instruction samples ath10k: use kzalloc to read for ath10k_sdio_hif_diag_read scsi: aacraid: Disabling TM path and only processing IOP reset Bluetooth: L2CAP: handle l2cap config request during open state media: tda10071: fix unsigned sign extension overflow tty: sifive: Finish transmission before changing the clock xfs: don't ever return a stale pointer from __xfs_dir3_free_read xfs: mark dir corrupt when lookup-by-hash fails ext4: mark block bitmap corrupted when found instead of BUGON tpm: ibmvtpm: Wait for buffer to be set before proceeding rtc: sa1100: fix possible race condition rtc: ds1374: fix possible race condition nfsd: Don't add locks to closed or closing open stateids RDMA/cm: Remove a race freeing timewait_info intel_th: Disallow multi mode on devices where it's broken KVM: PPC: Book3S HV: Treat TM-related invalid form instructions on P9 like the valid ones drm/msm: fix leaks if initialization fails drm/msm/a5xx: Always set an OPP supported hardware value tracing: Use address-of operator on section symbols thermal: rcar_thermal: Handle probe error gracefully KVM: LAPIC: Mark hrtimer for period or oneshot mode to expire in hard interrupt context perf parse-events: Fix 3 use after frees found with clang ASAN btrfs: do not init a reloc root if we aren't relocating btrfs: free the reloc_control in a consistent way r8169: improve RTL8168b FIFO overflow workaround serial: 8250_port: Don't service RX FIFO if throttled serial: 8250_omap: Fix sleeping function called from invalid context during probe serial: 8250: 8250_omap: Terminate DMA before pushing data on RX timeout perf cpumap: Fix snprintf overflow check net: axienet: Convert DMA error handler to a work queue net: axienet: Propagate failure of DMA descriptor setup cpufreq: powernv: Fix frame-size-overflow in powernv_cpufreq_work_fn tools: gpio-hammer: Avoid potential overflow in main exec: Add exec_update_mutex to replace cred_guard_mutex exec: Fix a deadlock in strace selftests/ptrace: add test cases for dead-locks kernel/kcmp.c: Use new infrastructure to fix deadlocks in execve proc: Use new infrastructure to fix deadlocks in execve proc: io_accounting: Use new infrastructure to fix deadlocks in execve perf: Use new infrastructure to fix deadlocks in execve nvme-multipath: do not reset on unknown status nvme: Fix ctrl use-after-free during sysfs deletion nvme: Fix controller creation races with teardown flow brcmfmac: Fix double freeing in the fmac usb data path xfs: prohibit fs freezing when using empty transactions RDMA/rxe: Set sys_image_guid to be aligned with HW IB devices IB/iser: Always check sig MR before putting it to the free pool scsi: hpsa: correct race condition in offload enabled SUNRPC: Fix a potential buffer overflow in 'svc_print_xprts()' svcrdma: Fix leak of transport addresses netfilter: nf_tables: silence a RCU-list warning in nft_table_lookup() PCI: Use ioremap(), not phys_to_virt() for platform ROM ubifs: ubifs_jnl_write_inode: Fix a memory leak bug ubifs: ubifs_add_orphan: Fix a memory leak bug ubifs: Fix out-of-bounds memory access caused by abnormal value of node_len ALSA: usb-audio: Fix case when USB MIDI interface has more than one extra endpoint descriptor PCI: pciehp: Fix MSI interrupt race NFS: Fix races nfs_page_group_destroy() vs nfs_destroy_unlinked_subrequests() drm/amdgpu/vcn2.0: stall DPG when WPTR/RPTR reset powerpc/perf: Implement a global lock to avoid races between trace, core and thread imc events. mm/kmemleak.c: use address-of operator on section symbols mm/filemap.c: clear page error before actual read mm/swapfile: fix data races in try_to_unuse() mm/vmscan.c: fix data races using kswapd_classzone_idx SUNRPC: Don't start a timer on an already queued rpc task nvmet-rdma: fix double free of rdma queue workqueue: Remove the warning in wq_worker_sleeping() drm/amdgpu/sriov add amdgpu_amdkfd_pre_reset in gpu reset mm/mmap.c: initialize align_offset explicitly for vm_unmapped_area ALSA: hda: Skip controller resume if not needed scsi: qedi: Fix termination timeouts in session logout serial: uartps: Wait for tx_empty in console setup btrfs: fix setting last_trans for reloc roots KVM: Remove CREATE_IRQCHIP/SET_PIT2 race perf stat: Force error in fallback on :k events bdev: Reduce time holding bd_mutex in sync in blkdev_close() drivers: char: tlclk.c: Avoid data race between init and interrupt handler KVM: arm64: vgic-v3: Retire all pending LPIs on vcpu destroy KVM: arm64: vgic-its: Fix memory leak on the error path of vgic_add_lpi() net: openvswitch: use u64 for meter bucket scsi: aacraid: Fix error handling paths in aac_probe_one() staging:r8188eu: avoid skb_clone for amsdu to msdu conversion sparc64: vcc: Fix error return code in vcc_probe() arm64: cpufeature: Relax checks for AArch32 support at EL[0-2] sched/fair: Eliminate bandwidth race between throttling and distribution dpaa2-eth: fix error return code in setup_dpni() dt-bindings: sound: wm8994: Correct required supplies based on actual implementaion devlink: Fix reporter's recovery condition atm: fix a memory leak of vcc->user_back media: venus: vdec: Init registered list unconditionally perf mem2node: Avoid double free related to realloc mm/slub: fix incorrect interpretation of s->offset i2c: tegra: Restore pinmux on system resume power: supply: max17040: Correct voltage reading phy: samsung: s5pv210-usb2: Add delay after reset Bluetooth: Handle Inquiry Cancel error after Inquiry Complete USB: EHCI: ehci-mv: fix error handling in mv_ehci_probe() KVM: x86: handle wrap around 32-bit address space tipc: fix memory leak in service subscripting tty: serial: samsung: Correct clock selection logic ALSA: hda: Fix potential race in unsol event handler drm/exynos: dsi: Remove bridge node reference in error handling path in probe function ipmi:bt-bmc: Fix error handling and status check powerpc/traps: Make unrecoverable NMIs die instead of panic svcrdma: Fix backchannel return code fuse: don't check refcount after stealing page fuse: update attr_version counter on fuse_notify_inval_inode() USB: EHCI: ehci-mv: fix less than zero comparison of an unsigned int coresight: etm4x: Fix use-after-free of per-cpu etm drvdata arm64: acpi: Make apei_claim_sea() synchronise with APEI's irq work scsi: cxlflash: Fix error return code in cxlflash_probe() arm64/cpufeature: Drop TraceFilt feature exposure from ID_DFR0 register drm/amdkfd: fix restore worker race condition e1000: Do not perform reset in reset_task if we are already down drm/nouveau/debugfs: fix runtime pm imbalance on error drm/nouveau: fix runtime pm imbalance on error drm/nouveau/dispnv50: fix runtime pm imbalance on error printk: handle blank console arguments passed in. usb: dwc3: Increase timeout for CmdAct cleared by device controller btrfs: don't force read-only after error in drop snapshot btrfs: fix double __endio_write_update_ordered in direct I/O gpio: rcar: Fix runtime PM imbalance on error vfio/pci: fix memory leaks of eventfd ctx KVM: PPC: Book3S HV: Close race with page faults around memslot flushes perf evsel: Fix 2 memory leaks perf trace: Fix the selection for architectures to generate the errno name tables perf stat: Fix duration_time value for higher intervals perf util: Fix memory leak of prefix_if_not_in perf metricgroup: Free metric_events on error perf kcore_copy: Fix module map when there are no modules loaded PCI: tegra194: Fix runtime PM imbalance on error ASoC: img-i2s-out: Fix runtime PM imbalance on error wlcore: fix runtime pm imbalance in wl1271_tx_work wlcore: fix runtime pm imbalance in wlcore_regdomain_config mtd: rawnand: gpmi: Fix runtime PM imbalance on error mtd: rawnand: omap_elm: Fix runtime PM imbalance on error PCI: tegra: Fix runtime PM imbalance on error ceph: fix potential race in ceph_check_caps mm/swap_state: fix a data race in swapin_nr_pages mm: memcontrol: fix stat-corrupting race in charge moving rapidio: avoid data race between file operation callbacks and mport_cdev_add(). mtd: parser: cmdline: Support MTD names containing one or more colons x86/speculation/mds: Mark mds_user_clear_cpu_buffers() __always_inline NFS: nfs_xdr_status should record the procedure name vfio/pci: Clear error and request eventfd ctx after releasing cifs: Fix double add page to memcg when cifs_readpages nvme: fix possible deadlock when I/O is blocked mac80211: skip mpath lookup also for control port tx scsi: libfc: Handling of extra kref scsi: libfc: Skip additional kref updating work event selftests/x86/syscall_nt: Clear weird flags after each test vfio/pci: fix racy on error and request eventfd ctx btrfs: qgroup: fix data leak caused by race between writeback and truncate perf tests: Fix test 68 zstd compression for s390 scsi: qla2xxx: Retry PLOGI on FC-NVMe PRLI failure ubi: fastmap: Free unused fastmap anchor peb during detach mt76: fix LED link time failure opp: Increase parsed_static_opps in _of_add_opp_table_v1() perf parse-events: Use strcmp() to compare the PMU name ALSA: hda: Always use jackpoll helper for jack update after resume ALSA: hda: Workaround for spurious wakeups on some Intel platforms net: openvswitch: use div_u64() for 64-by-32 divisions nvme: explicitly update mpath disk capacity on revalidation device_cgroup: Fix RCU list debugging warning ASoC: pcm3168a: ignore 0 Hz settings ASoC: wm8994: Skip setting of the WM8994_MICBIAS register for WM1811 ASoC: wm8994: Ensure the device is resumed in wm89xx_mic_detect functions ASoC: Intel: bytcr_rt5640: Add quirk for MPMAN Converter9 2-in-1 RISC-V: Take text_mutex in ftrace_init_nop() i2c: aspeed: Mask IRQ status to relevant bits s390/init: add missing __init annotations lockdep: fix order in trace_hardirqs_off_caller() EDAC/ghes: Check whether the driver is on the safe list correctly drm/amdkfd: fix a memory leak issue drm/amd/display: update nv1x stutter latencies drm/amdgpu/dc: Require primary plane to be enabled whenever the CRTC is i2c: core: Call i2c_acpi_install_space_handler() before i2c_acpi_register_devices() objtool: Fix noreturn detection for ignored functions ieee802154: fix one possible memleak in ca8210_dev_com_init ieee802154/adf7242: check status of adf7242_read_reg clocksource/drivers/h8300_timer8: Fix wrong return value in h8300_8timer_init() mwifiex: Increase AES key storage size to 256 bits batman-adv: bla: fix type misuse for backbone_gw hash indexing atm: eni: fix the missed pci_disable_device() for eni_init_one() batman-adv: mcast/TT: fix wrongly dropped or rerouted packets netfilter: conntrack: nf_conncount_init is failing with IPv6 disabled mac802154: tx: fix use-after-free bpf: Fix clobbering of r2 in bpf_gen_ld_abs drm/vc4/vc4_hdmi: fill ASoC card owner net: qed: Disable aRFS for NPAR and 100G net: qede: Disable aRFS for NPAR and 100G net: qed: RDMA personality shouldn't fail VF load drm/sun4i: sun8i-csc: Secondary CSC register correction batman-adv: Add missing include for in_interrupt() nvme-tcp: fix kconfig dependency warning when !CRYPTO batman-adv: mcast: fix duplicate mcast packets in BLA backbone from LAN batman-adv: mcast: fix duplicate mcast packets in BLA backbone from mesh batman-adv: mcast: fix duplicate mcast packets from BLA backbone to mesh bpf: Fix a rcu warning for bpffs map pretty-print lib80211: fix unmet direct dependendices config warning when !CRYPTO ALSA: asihpi: fix iounmap in error handler regmap: fix page selection for noinc reads regmap: fix page selection for noinc writes MIPS: Add the missing 'CPU_1074K' into __get_cpu_type() regulator: axp20x: fix LDO2/4 description KVM: x86: Reset MMU context if guest toggles CR4.SMAP or CR4.PKE KVM: SVM: Add a dedicated INVD intercept routine mm: validate pmd after splitting arch/x86/lib/usercopy_64.c: fix __copy_user_flushcache() cache writeback x86/ioapic: Unbreak check_timer() scsi: lpfc: Fix initial FLOGI failure due to BBSCN not supported ALSA: usb-audio: Add delay quirk for H570e USB headsets ALSA: hda/realtek - Couldn't detect Mic if booting with headset plugged ALSA: hda/realtek: Enable front panel headset LED on Lenovo ThinkStation P520 lib/string.c: implement stpcpy tracing: fix double free s390/dasd: Fix zero write for FBA devices kprobes: Fix to check probe enabled before disarm_kprobe_ftrace() kprobes: tracing/kprobes: Fix to kill kprobes on initmem after boot btrfs: fix overflow when copying corrupt csums for a message dmabuf: fix NULL pointer dereference in dma_buf_release() mm, THP, swap: fix allocating cluster for swapfile by mistake mm/gup: fix gup_fast with dynamic page table folding s390/zcrypt: Fix ZCRYPT_PERDEV_REQCNT ioctl KVM: arm64: Assume write fault on S1PTW permission fault on instruction fetch dm: fix bio splitting and its bio completion order for regular IO kprobes: Fix compiler warning for !CONFIG_KPROBES_ON_FTRACE ata: define AC_ERR_OK ata: make qc_prep return ata_completion_errors ata: sata_mv, avoid trigerrable BUG_ON Linux 5.4.69 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I2a26b4f6fd89b641fa80e339ee72089da51a1415	2020-10-01 18:00:35 +02:00
Waiman Long	ef6eb81213	locking/lockdep: Decrement IRQ context counters when removing lock chain ... [ Upstream commit b3b9c187dc2544923a601733a85352b9ddaba9b3 ] There are currently three counters to track the IRQ context of a lock chain - nr_hardirq_chains, nr_softirq_chains and nr_process_chains. They are incremented when a new lock chain is added, but they are not decremented when a lock chain is removed. That causes some of the statistic counts reported by /proc/lockdep_stats to be incorrect. IRQ Fix that by decrementing the right counter when a lock chain is removed. Since inc_chains() no longer accesses hardirq_context and softirq_context directly, it is moved out from the CONFIG_TRACE_IRQFLAGS conditional compilation block. Fixes: a0b0fd53e1 ("locking/lockdep: Free lock classes that are no longer in use") Signed-off-by: Waiman Long <longman@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Link: https://lkml.kernel.org/r/20200206152408.24165-2-longman@redhat.com Signed-off-by: Sasha Levin <sashal@kernel.org>	2020-10-01 13:17:33 +02:00
Greg Kroah-Hartman	7ea7cc9f8b	This is the 5.4.62 stable release ... -----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAl9Qtz8ACgkQONu9yGCS aT7xMw/9H2aAnbYRKpq4NX95OcfujmE1S4zv99TGOus2SPO+C6JiAo4WE40OYfWj H4q2XKa2jAKAvxLwf5zfUKdWNTqTpz+9NiCeF7QUEbGZ+fj7d39s1Quo6KNhCfUX pyQX7oa9nsaIbwzCz5RB0AqRGVzTMwh4lGdhtxTQfl/LMYWtub9UOkUvWimxlO5i bWqiqIOZWOzIoPj9KHEOg4KsE6L5D69PjfT2M/qfuOd4TWUw5i1Dv2ckRG1A5r3H q8oGrNwgMcco1mpC7lG0IZteNfNZHZqVeOGVdF54HsY+tpLBE9G6HbvfDQknyOPy BP3zBcPovWz3S2wRwHyZHjJdQdIprWW+zwikVoqMbTXt8VkNh0qXDgrfScEn6Fah hi6oOYvKOCb9YlD6IH7zfvZJzwRdmhIV26dztk1vI51dyvWUh+lmeWuFeGWCYUy6 PYc9O1RjpzZqNezdHz4ZoueX+4G63fXJ1pTwYhReS4Wj7AYTqUgwIV+ZYKcTmmuD bXiWzQXt+4sbR2Mhah5E9wdJlIOc46i+ui6VEUxqZBq8UH0t5C8xxTjO61EAtd4F vlfs57jI8/VwWMxUPI4Qni933h1B4zBUlhvTqK7W0QQgEUsO6mIQQB5bDy0A0HOT 3lImaFt4f+HI7vEltqE1qds1IXK7c0HvFbGC1fRI1ZdS0VdUiY8= =F1JD -----END PGP SIGNATURE----- Merge 5.4.62 into android11-5.4-lts Changes in 5.4.62 powerpc/64s: Don't init FSCR_DSCR in __init_FSCR() binfmt_flat: revert "binfmt_flat: don't offset the data start" gre6: Fix reception with IP6_TNL_F_RCV_DSCP_COPY net: Fix potential wrong skb->protocol in skb_vlan_untag() net: nexthop: don't allow empty NHA_GROUP net: qrtr: fix usage of idr in port assignment to socket net: sctp: Fix negotiation of the number of data streams. net/smc: Prevent kernel-infoleak in __smc_diag_dump() tipc: fix uninit skb->data in tipc_nl_compat_dumpit() net: ena: Make missed_tx stat incremental net/sched: act_ct: Fix skb double-free in tcf_ct_handle_fragments() error flow ipvlan: fix device features ALSA: hda/hdmi: Add quirk to force connectivity ALSA: pci: delete repeated words in comments ALSA: hda/realtek: Fix pin default on Intel NUC 8 Rugged ALSA: hda/hdmi: Use force connectivity quirk on another HP desktop ASoC: img: Fix a reference count leak in img_i2s_in_set_fmt ASoC: img-parallel-out: Fix a reference count leak ASoC: tegra: Fix reference count leaks. mfd: intel-lpss: Add Intel Emmitsburg PCH PCI IDs arm64: dts: qcom: msm8916: Pull down PDM GPIOs during sleep powerpc/xive: Ignore kmemleak false positives media: pci: ttpci: av7110: fix possible buffer overflow caused by bad DMA value in debiirq() blktrace: ensure our debugfs dir exists scsi: target: tcmu: Fix crash on ARM during cmd completion mfd: intel-lpss: Add Intel Tiger Lake PCH-H PCI IDs iommu/iova: Don't BUG on invalid PFNs drm/amdkfd: Fix reference count leaks. drm/radeon: fix multiple reference count leak drm/amdgpu: fix ref count leak in amdgpu_driver_open_kms drm/amd/display: fix ref count leak in amdgpu_drm_ioctl drm/amdgpu: fix ref count leak in amdgpu_display_crtc_set_config drm/amdgpu/display: fix ref count leak when pm_runtime_get_sync fails scsi: lpfc: Fix shost refcount mismatch when deleting vport xfs: Don't allow logging of XFS_ISTALE inodes scsi: target: Fix xcopy sess release leak selftests/powerpc: Purge extra count_pmc() calls of ebb selftests f2fs: fix error path in do_recover_data() omapfb: fix multiple reference count leaks due to pm_runtime_get_sync PCI: Fix pci_create_slot() reference count leak ARM: dts: ls1021a: output PPS signal on FIPER2 rtlwifi: rtl8192cu: Prevent leaking urb mips/vdso: Fix resource leaks in genvdso.c ALSA: hda: Add support for Loongson 7A1000 controller cec-api: prevent leaking memory through hole in structure HID: quirks: add NOGET quirk for Logitech GROUP f2fs: fix use-after-free issue drm/nouveau/drm/noveau: fix reference count leak in nouveau_fbcon_open drm/nouveau: fix reference count leak in nv50_disp_atomic_commit drm/nouveau: Fix reference count leak in nouveau_connector_detect locking/lockdep: Fix overflow in presentation of average lock-time btrfs: file: reserve qgroup space after the hole punch range is locked btrfs: make btrfs_qgroup_check_reserved_leak take btrfs_inode scsi: iscsi: Do not put host in iscsi_set_flashnode_param() ceph: fix potential mdsc use-after-free crash ceph: do not access the kiocb after aio requests scsi: fcoe: Memory leak fix in fcoe_sysfs_fcf_del() EDAC/ie31200: Fallback if host bridge device is already initialized hugetlbfs: prevent filesystem stacking of hugetlbfs media: davinci: vpif_capture: fix potential double free KVM: arm64: Fix symbol dependency in __hyp_call_panic_nvhe powerpc/spufs: add CONFIG_COREDUMP dependency USB: sisusbvga: Fix a potential UB casued by left shifting a negative value brcmfmac: Set timeout value when configuring power save efi: provide empty efi_enter_virtual_mode implementation arm64: Fix __cpu_logical_map undefined issue Revert "ath10k: fix DMA related firmware crashes on multiple devices" sched/uclamp: Protect uclamp fast path code with static key sched/uclamp: Fix a deadlock when enabling uclamp static key usb: cdns3: gadget: always zeroed TRB buffer when enable endpoint PM / devfreq: rk3399_dmc: Add missing of_node_put() PM / devfreq: rk3399_dmc: Disable devfreq-event device when fails PM / devfreq: rk3399_dmc: Fix kernel oops when rockchip,pmu is absent drm/xen: fix passing zero to 'PTR_ERR' warning drm/xen-front: Fix misused IS_ERR_OR_NULL checks s390/numa: set node distance to LOCAL_DISTANCE btrfs: factor out inode items copy loop from btrfs_log_inode() btrfs: only commit the delayed inode when doing a full fsync btrfs: only commit delayed items at fsync if we are logging a directory mm/shuffle: don't move pages between zones and don't read garbage memmaps mm: fix kthread_use_mm() vs TLB invalidate mm/cma.c: switch to bitmap_zalloc() for cma bitmap allocation cma: don't quit at first error when activating reserved areas gpu/drm: ingenic: Use the plane's src_[x,y] to configure DMA length drm/ingenic: Fix incorrect assumption about plane->index drm/amd/display: Trigger modesets on MST DSC connectors drm/amd/display: Add additional config guards for DCN drm/amd/display: Fix dmesg warning from setting abm level mm/vunmap: add cond_resched() in vunmap_pmd_range EDAC: sb_edac: get rid of unused vars EDAC: skx_common: get rid of unused type var EDAC/{i7core,sb,pnd2,skx}: Fix error event severity PCI: qcom: Add missing ipq806x clocks in PCIe driver PCI: qcom: Change duplicate PCI reset to phy reset PCI: qcom: Add missing reset for ipq806x cpufreq: intel_pstate: Fix EPP setting via sysfs in active mode ALSA: usb-audio: Add capture support for Saffire 6 (USB 1.1) media: gpio-ir-tx: improve precision of transmitted signal due to scheduling block: respect queue limit of max discard segment block: virtio_blk: fix handling single range discard request drm/msm/adreno: fix updating ring fence block: Fix page_is_mergeable() for compound pages bfq: fix blkio cgroup leakage v4 hwmon: (nct7904) Correct divide by 0 blk-mq: insert request not through ->queue_rq into sw/scheduler queue blkcg: fix memleak for iolatency nvme-fc: Fix wrong return value in __nvme_fc_init_request() nvme: multipath: round-robin: fix single non-optimized path case null_blk: fix passing of REQ_FUA flag in null_handle_rq i2c: core: Don't fail PRP0001 enumeration when no ID table exist i2c: rcar: in slave mode, clear NACK earlier usb: gadget: f_tcm: Fix some resource leaks in some error paths spi: stm32: clear only asserted irq flags on interrupt jbd2: make sure jh have b_transaction set in refile/unfile_buffer ext4: don't BUG on inconsistent journal feature ext4: handle read only external journal device jbd2: abort journal if free a async write error metadata buffer ext4: handle option set by mount flags correctly ext4: handle error of ext4_setup_system_zone() on remount ext4: correctly restore system zone info when remount fails fs: prevent BUG_ON in submit_bh_wbc() spi: stm32h7: fix race condition at end of transfer spi: stm32: fix fifo threshold level in case of short transfer spi: stm32: fix stm32_spi_prepare_mbr in case of odd clk_rate spi: stm32: always perform registers configuration prior to transfer drm/amd/powerplay: correct Vega20 cached smu feature state drm/amd/powerplay: correct UVD/VCE PG state on custom pptable uploading drm/amd/display: Switch to immediate mode for updating infopackets netfilter: avoid ipv6 -> nf_defrag_ipv6 module dependency can: j1939: transport: j1939_xtp_rx_dat_one(): compare own packets to detect corruptions ALSA: hda/realtek: Add model alc298-samsung-headphone s390/cio: add cond_resched() in the slow_eval_known_fn() loop ASoC: wm8994: Avoid attempts to read unreadable registers selftests: disable rp_filter for icmp_redirect.sh scsi: fcoe: Fix I/O path allocation scsi: ufs: Fix possible infinite loop in ufshcd_hold scsi: ufs: Improve interrupt handling for shared interrupts scsi: ufs: Clean up completed request without interrupt notification scsi: qla2xxx: Fix login timeout scsi: qla2xxx: Check if FW supports MQ before enabling scsi: qla2xxx: Fix null pointer access during disconnect from subsystem Revert "scsi: qla2xxx: Fix crash on qla2x00_mailbox_command" macvlan: validate setting of multiple remote source MAC addresses net: gianfar: Add of_node_put() before goto statement powerpc/perf: Fix soft lockups due to missed interrupt accounting arm64: Move handling of erratum 1418040 into C code arm64: Allow booting of late CPUs affected by erratum 1418040 block: fix get_max_io_size() block: loop: set discard granularity and alignment for block device backed loop HID: i2c-hid: Always sleep 60ms after I2C_HID_PWR_ON commands blk-mq: order adding requests to hctx->dispatch and checking SCHED_RESTART btrfs: reset compression level for lzo on remount btrfs: check the right error variable in btrfs_del_dir_entries_in_log btrfs: fix space cache memory leak after transaction abort btrfs: detect nocow for swap after snapshot delete fbcon: prevent user font height or width change from causing potential out-of-bounds access USB: lvtest: return proper error code in probe vt: defer kfree() of vc_screenbuf in vc_do_resize() vt_ioctl: change VT_RESIZEX ioctl to check for error return from vc_resize() serial: samsung: Removes the IRQ not found warning serial: pl011: Fix oops on -EPROBE_DEFER serial: pl011: Don't leak amba_ports entry on driver register error serial: stm32: avoid kernel warning on absence of optional IRQ serial: 8250_exar: Fix number of ports for Commtech PCIe cards serial: 8250: change lock order in serial8250_do_startup() writeback: Protect inode->i_io_list with inode->i_lock writeback: Avoid skipping inode writeback writeback: Fix sync livelock due to b_dirty_time processing XEN uses irqdesc::irq_data_common::handler_data to store a per interrupt XEN data pointer which contains XEN specific information. usb: host: xhci: fix ep context print mismatch in debugfs xhci: Do warm-reset when both CAS and XDEV_RESUME are set xhci: Always restore EP_SOFT_CLEAR_TOGGLE even if ep reset failed arm64: vdso32: make vdso32 install conditional PM: sleep: core: Fix the handling of pending runtime resume requests powerpc/perf: Fix crashes with generic_compat_pmu & BHRB device property: Fix the secondary firmware node handling in set_primary_fwnode() crypto: af_alg - Work around empty control messages without MSG_MORE genirq/matrix: Deal with the sillyness of for_each_cpu() on UP irqchip/stm32-exti: Avoid losing interrupts due to clearing pending bits by mistake x86/hotplug: Silence APIC only after all interrupts are migrated drm/amdgpu: Fix buffer overflow in INFO ioctl drm/amdgpu/gfx10: refine mgcg setting drm/amd/powerplay: Fix hardmins not being sent to SMU for RV drm/amd/pm: correct Vega10 swctf limit setting drm/amd/pm: correct Vega12 swctf limit setting drm/amd/pm: correct Vega20 swctf limit setting drm/amd/pm: correct the thermal alert temperature limit settings USB: yurex: Fix bad gfp argument usb: uas: Add quirk for PNY Pro Elite USB: quirks: Add no-lpm quirk for another Raydium touchscreen USB: quirks: Ignore duplicate endpoint on Sound Devices MixPre-D USB: Ignore UAS for JMicron JMS567 ATA/ATAPI Bridge usb: host: ohci-exynos: Fix error handling in exynos_ohci_probe() USB: gadget: u_f: add overflow checks to VLA macros USB: gadget: f_ncm: add bounds checks to ncm_unwrap_ntb() USB: gadget: u_f: Unbreak offset calculation in VLAs USB: cdc-acm: rework notification_buffer resizing usb: storage: Add unusual_uas entry for Sony PSZ drives drm/i915: Fix cmd parser desc matching with masks usb: dwc3: gadget: Don't setup more than requested usb: dwc3: gadget: Fix handling ZLP usb: dwc3: gadget: Handle ZLP for sg requests fbmem: pull fbcon_update_vcs() out of fb_set_var() kheaders: remove unneeded 'cat' command piped to 'head' / 'tail' kheaders: optimize md5sum calculation for in-tree builds kheaders: optimize header copy for in-tree builds kheaders: remove the last bashism to allow sh to run it kheaders: explain why include/config/autoconf.h is excluded from md5sum kbuild: add variables for compression tools kbuild: fix broken builds because of GZIP,BZIP2,LZOP variables HID: hiddev: Fix slab-out-of-bounds write in hiddev_ioctl_usage() ALSA: usb-audio: Update documentation comment for MS2109 quirk io_uring: Fix NULL pointer dereference in io_sq_wq_submit_work() Linux 5.4.62 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I7cac9619b0d3edfee94fc6f31efa5d5b545cfeb5	2020-09-14 11:09:54 +02:00
Chris Wilson	7d6689df48	locking/lockdep: Fix overflow in presentation of average lock-time ... [ Upstream commit a7ef9b28aa8d72a1656fa6f0a01bbd1493886317 ] Though the number of lock-acquisitions is tracked as unsigned long, this is passed as the divisor to div_s64() which interprets it as a s32, giving nonsense values with more than 2 billion acquisitons. E.g. acquisitions holdtime-min holdtime-max holdtime-total holdtime-avg ------------------------------------------------------------------------- 2350439395 0.07 353.38 649647067.36 0.-32 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: https://lore.kernel.org/r/20200725185110.11588-1-chris@chris-wilson.co.uk Signed-off-by: Sasha Levin <sashal@kernel.org>	2020-09-03 11:26:47 +02:00
JianMin Liu	cfde7b838c	ANDROID: rwsem: Add vendor hook to the rw-semaphore ... - Add the hook to apply vendor's performance tune for owner of rwsem. - Add the hook for the waiter list of rwsem to allow vendor perform waiting queue enhancement - ANDROID_VENDOR_DATA added to rw_semaphore Bug: 161400830 Signed-off-by: JianMin Liu <jian-min.liu@mediatek.com> Change-Id: I007a5e26f3db2adaeaf4e5ccea414ce7abfa83b8	2020-08-20 19:28:23 +00:00
Sangmoon Kim	b519ac4237	ANDROID: vendor_hooks: add waiting information for blocked tasks ... - Add the hook to get mutex/rwsem information that the tasks are waiting for. - Add the hook to print messages for sched_show_task. - ANDROID_VENDOR_DATA_ARRAY added to task_struct Bug: 162776704 Signed-off-by: Sangmoon Kim <sangmoon.kim@samsung.com> Change-Id: Ib436fbd8d0ad509c3b5a73ea8f5170e0761a13fd	2020-08-12 19:30:03 +00:00
Paul E. McKenney	0c72ec11d8	locktorture: Print ratio of acquisitions, not failures ... commit 80c503e0e68fbe271680ab48f0fe29bc034b01b7 upstream. The __torture_print_stats() function in locktorture.c carefully initializes local variable "min" to statp[0].n_lock_acquired, but then compares it to statp[i].n_lock_fail. Given that the .n_lock_fail field should normally be zero, and given the initialization, it seems reasonable to display the maximum and minimum number acquisitions instead of miscomputing the maximum and minimum number of failures. This commit therefore switches from failures to acquisitions. And this turns out to be not only a day-zero bug, but entirely my own fault. I hate it when that happens! Fixes: 0af3fe1efa ("locktorture: Add a lock-torture kernel module") Reported-by: Will Deacon <will@kernel.org> Signed-off-by: Paul E. McKenney <paulmck@kernel.org> Acked-by: Will Deacon <will@kernel.org> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Josh Triplett <josh@joshtriplett.org> Cc: Peter Zijlstra <peterz@infradead.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>	2020-04-23 10:36:44 +02:00
Boqun Feng	bd9afea9bd	locking/lockdep: Avoid recursion in lockdep_count_{for,back}ward_deps() ... [ Upstream commit 25016bd7f4caf5fc983bbab7403d08e64cba3004 ] Qian Cai reported a bug when PROVE_RCU_LIST=y, and read on /proc/lockdep triggered a warning: [ ] DEBUG_LOCKS_WARN_ON(current->hardirqs_enabled) ... [ ] Call Trace: [ ] lock_is_held_type+0x5d/0x150 [ ] ? rcu_lockdep_current_cpu_online+0x64/0x80 [ ] rcu_read_lock_any_held+0xac/0x100 [ ] ? rcu_read_lock_held+0xc0/0xc0 [ ] ? __slab_free+0x421/0x540 [ ] ? kasan_kmalloc+0x9/0x10 [ ] ? __kmalloc_node+0x1d7/0x320 [ ] ? kvmalloc_node+0x6f/0x80 [ ] __bfs+0x28a/0x3c0 [ ] ? class_equal+0x30/0x30 [ ] lockdep_count_forward_deps+0x11a/0x1a0 The warning got triggered because lockdep_count_forward_deps() call __bfs() without current->lockdep_recursion being set, as a result a lockdep internal function (__bfs()) is checked by lockdep, which is unexpected, and the inconsistency between the irq-off state and the state traced by lockdep caused the warning. Apart from this warning, lockdep internal functions like __bfs() should always be protected by current->lockdep_recursion to avoid potential deadlocks and data inconsistency, therefore add the current->lockdep_recursion on-and-off section to protect __bfs() in both lockdep_count_forward_deps() and lockdep_count_backward_deps() Reported-by: Qian Cai <cai@lca.pw> Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Link: https://lkml.kernel.org/r/20200312151258.128036-1-boqun.feng@gmail.com Signed-off-by: Sasha Levin <sashal@kernel.org>	2020-04-17 10:50:05 +02:00
Waiman Long	2482da809f	locking/lockdep: Fix lockdep_stats indentation problem ... commit a030f9767da1a6bbcec840fc54770eb11c2414b6 upstream. It was found that two lines in the output of /proc/lockdep_stats have indentation problem: # cat /proc/lockdep_stats : in-process chains: 25057 stack-trace entries: 137827 [max: 524288] number of stack traces: 7973 number of stack hash chains: 6355 combined max dependencies: 1356414598 hardirq-safe locks: 57 hardirq-unsafe locks: 1286 : All the numbers displayed in /proc/lockdep_stats except the two stack trace numbers are formatted with a field with of 11. To properly align all the numbers, a field width of 11 is now added to the two stack trace numbers. Fixes: 8c779229d0 ("locking/lockdep: Report more stack trace statistics") Signed-off-by: Waiman Long <longman@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Link: https://lkml.kernel.org/r/20191211213139.29934-1-longman@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>	2020-03-05 16:43:51 +01:00
Waiman Long	b90976941e	locking/lockdep: Fix buffer overrun problem in stack_trace[] ... commit d91f3057263ceb691ef527e71b41a56b17f6c869 upstream. If the lockdep code is really running out of the stack_trace entries, it is likely that buffer overrun can happen and the data immediately after stack_trace[] will be corrupted. If there is less than LOCK_TRACE_SIZE_IN_LONGS entries left before the call to save_trace(), the max_entries computation will leave it with a very large positive number because of its unsigned nature. The subsequent call to stack_trace_save() will then corrupt the data after stack_trace[]. Fix that by changing max_entries to a signed integer and check for negative value before calling stack_trace_save(). Signed-off-by: Waiman Long <longman@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Bart Van Assche <bvanassche@acm.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Fixes: 12593b7467 ("locking/lockdep: Reduce space occupied by stack traces") Link: https://lkml.kernel.org/r/20191220135128.14876-1-longman@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>	2020-01-23 08:22:39 +01:00
Waiman Long	710d9fd2f4	locking/rwsem: Fix kernel crash when spinning on RWSEM_OWNER_UNKNOWN ... commit 39e7234f00bc93613c086ae42d852d5f4147120a upstream. The commit 91d2a812df ("locking/rwsem: Make handoff writer optimistically spin on owner") will allow a recently woken up waiting writer to spin on the owner. Unfortunately, if the owner happens to be RWSEM_OWNER_UNKNOWN, the code will incorrectly spin on it leading to a kernel crash. This is fixed by passing the proper non-spinnable bits to rwsem_spin_on_owner() so that RWSEM_OWNER_UNKNOWN will be treated as a non-spinnable target. Fixes: 91d2a812df ("locking/rwsem: Make handoff writer optimistically spin on owner") Reported-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Waiman Long <longman@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Christoph Hellwig <hch@lst.de> Cc: stable@vger.kernel.org Link: https://lkml.kernel.org/r/20200115154336.8679-1-longman@redhat.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>	2020-01-23 08:22:37 +01:00
Marco Elver	c120c3dbeb	locking/spinlock/debug: Fix various data races ... [ Upstream commit 1a365e822372ba24c9da0822bc583894f6f3d821 ] This fixes various data races in spinlock_debug. By testing with KCSAN, it is observable that the console gets spammed with data races reports, suggesting these are extremely frequent. Example data race report: read to 0xffff8ab24f403c48 of 4 bytes by task 221 on cpu 2: debug_spin_lock_before kernel/locking/spinlock_debug.c:85 [inline] do_raw_spin_lock+0x9b/0x210 kernel/locking/spinlock_debug.c:112 __raw_spin_lock include/linux/spinlock_api_smp.h:143 [inline] _raw_spin_lock+0x39/0x40 kernel/locking/spinlock.c:151 spin_lock include/linux/spinlock.h:338 [inline] get_partial_node.isra.0.part.0+0x32/0x2f0 mm/slub.c:1873 get_partial_node mm/slub.c:1870 [inline] <snip> write to 0xffff8ab24f403c48 of 4 bytes by task 167 on cpu 3: debug_spin_unlock kernel/locking/spinlock_debug.c:103 [inline] do_raw_spin_unlock+0xc9/0x1a0 kernel/locking/spinlock_debug.c:138 __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:159 [inline] _raw_spin_unlock_irqrestore+0x2d/0x50 kernel/locking/spinlock.c:191 spin_unlock_irqrestore include/linux/spinlock.h:393 [inline] free_debug_processing+0x1b3/0x210 mm/slub.c:1214 __slab_free+0x292/0x400 mm/slub.c:2864 <snip> As a side-effect, with KCSAN, this eventually locks up the console, most likely due to deadlock, e.g. .. -> printk lock -> spinlock_debug -> KCSAN detects data race -> kcsan_print_report() -> printk lock -> deadlock. This fix will 1) avoid the data races, and 2) allow using lock debugging together with KCSAN. Reported-by: Qian Cai <cai@lca.pw> Signed-off-by: Marco Elver <elver@google.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul E. McKenney <paulmck@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Will Deacon <will.deacon@arm.com> Link: https://lkml.kernel.org/r/20191120155715.28089-1-elver@google.com Signed-off-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>	2020-01-12 12:21:13 +01:00
Wanpeng Li	89340d0935	Revert "locking/pvqspinlock: Don't wait if vCPU is preempted" ... This patch reverts commit 75437bb304 (locking/pvqspinlock: Don't wait if vCPU is preempted). A large performance regression was caused by this commit. on over-subscription scenarios. The test was run on a Xeon Skylake box, 2 sockets, 40 cores, 80 threads, with three VMs of 80 vCPUs each. The score of ebizzy -M is reduced from 13000-14000 records/s to 1700-1800 records/s: Host Guest score vanilla w/o kvm optimizations upstream 1700-1800 records/s vanilla w/o kvm optimizations revert 13000-14000 records/s vanilla w/ kvm optimizations upstream 4500-5000 records/s vanilla w/ kvm optimizations revert 14000-15500 records/s Exit from aggressive wait-early mechanism can result in premature yield and extra scheduling latency. Actually, only 6% of wait_early events are caused by vcpu_is_preempted() being true. However, when one vCPU voluntarily releases its vCPU, all the subsequently waiters in the queue will do the same and the cascading effect leads to bad performance. kvm optimizations: [1] commit d73eb57b80 (KVM: Boost vCPUs that are delivering interrupts) [2] commit 266e85a5ec (KVM: X86: Boost queue head vCPU to mitigate lock waiter preemption) Tested-by: loobinliu@tencent.com Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@kernel.org> Cc: Waiman Long <longman@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Radim Krčmář <rkrcmar@redhat.com> Cc: loobinliu@tencent.com Cc: stable@vger.kernel.org Fixes: 75437bb304 (locking/pvqspinlock: Don't wait if vCPU is preempted) Signed-off-by: Wanpeng Li <wanpengli@tencent.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>	2019-09-25 10:22:37 +02:00
Linus Torvalds	7e67a85999	Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip ... Pull scheduler updates from Ingo Molnar: - MAINTAINERS: Add Mark Rutland as perf submaintainer, Juri Lelli and Vincent Guittot as scheduler submaintainers. Add Dietmar Eggemann, Steven Rostedt, Ben Segall and Mel Gorman as scheduler reviewers. As perf and the scheduler is getting bigger and more complex, document the status quo of current responsibilities and interests, and spread the review pain^H^H^H^H fun via an increase in the Cc: linecount generated by scripts/get_maintainer.pl. :-) - Add another series of patches that brings the -rt (PREEMPT_RT) tree closer to mainline: split the monolithic CONFIG_PREEMPT dependencies into a new CONFIG_PREEMPTION category that will allow the eventual introduction of CONFIG_PREEMPT_RT. Still a few more hundred patches to go though. - Extend the CPU cgroup controller with uclamp.min and uclamp.max to allow the finer shaping of CPU bandwidth usage. - Micro-optimize energy-aware wake-ups from O(CPUS^2) to O(CPUS). - Improve the behavior of high CPU count, high thread count applications running under cpu.cfs_quota_us constraints. - Improve balancing with SCHED_IDLE (SCHED_BATCH) tasks present. - Improve CPU isolation housekeeping CPU allocation NUMA locality. - Fix deadline scheduler bandwidth calculations and logic when cpusets rebuilds the topology, or when it gets deadline-throttled while it's being offlined. - Convert the cpuset_mutex to percpu_rwsem, to allow it to be used from setscheduler() system calls without creating global serialization. Add new synchronization between cpuset topology-changing events and the deadline acceptance tests in setscheduler(), which were broken before. - Rework the active_mm state machine to be less confusing and more optimal. - Rework (simplify) the pick_next_task() slowpath. - Improve load-balancing on AMD EPYC systems. - ... and misc cleanups, smaller fixes and improvements - please see the Git log for more details. * 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (53 commits) sched/psi: Correct overly pessimistic size calculation sched/fair: Speed-up energy-aware wake-ups sched/uclamp: Always use 'enum uclamp_id' for clamp_id values sched/uclamp: Update CPU's refcount on TG's clamp changes sched/uclamp: Use TG's clamps to restrict TASK's clamps sched/uclamp: Propagate system defaults to the root group sched/uclamp: Propagate parent clamps sched/uclamp: Extend CPU's cgroup controller sched/topology: Improve load balancing on AMD EPYC systems arch, ia64: Make NUMA select SMP sched, perf: MAINTAINERS update, add submaintainers and reviewers sched/fair: Use rq_lock/unlock in online_fair_sched_group cpufreq: schedutil: fix equation in comment sched: Rework pick_next_task() slow-path sched: Allow put_prev_task() to drop rq->lock sched/fair: Expose newidle_balance() sched: Add task_struct pointer to sched_class::set_curr_task sched: Rework CPU hotplug task selection sched/{rt,deadline}: Fix set_next_task vs pick_next_task sched: Fix kerneldoc comment for ia64_set_curr_task ...	2019-09-16 17:25:49 -07:00
Linus Torvalds	c7eba51cfd	Merge branch 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip ... Pull locking updates from Ingo Molnar: - improve rwsem scalability - add uninitialized rwsem debugging check - reduce lockdep's stacktrace memory usage and add diagnostics - misc cleanups, code consolidation and constification * 'locking-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: mutex: Fix up mutex_waiter usage locking/mutex: Use mutex flags macro instead of hard code locking/mutex: Make __mutex_owner static to mutex.c locking/qspinlock,x86: Clarify virt_spin_lock_key locking/rwsem: Check for operations on an uninitialized rwsem locking/rwsem: Make handoff writer optimistically spin on owner locking/lockdep: Report more stack trace statistics locking/lockdep: Reduce space occupied by stack traces stacktrace: Constify 'entries' arguments locking/lockdep: Make it clear that what lock_class::key points at is not modified	2019-09-16 16:49:55 -07:00
Ingo Molnar	563c4f85f9	Merge branch 'sched/rt' into sched/core, to pick up -rt changes ... Pick up the first couple of patches working towards PREEMPT_RT. Signed-off-by: Ingo Molnar <mingo@kernel.org>	2019-09-16 14:05:04 +02:00
Peter Zijlstra	e57d143091	mutex: Fix up mutex_waiter usage ... The patch moving bits into mutex.c was a little too much; by also moving struct mutex_waiter a few less common CONFIGs would no longer build. Fixes: 5f35d5a66b ("locking/mutex: Make __mutex_owner static to mutex.c") Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>	2019-08-08 09:09:25 +02:00
Mukesh Ojha	a037d26922	locking/mutex: Use mutex flags macro instead of hard code ... Use the mutex flag macro instead of hard code value inside __mutex_owner(). Signed-off-by: Mukesh Ojha <mojha@codeaurora.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: mingo@redhat.com Cc: will@kernel.org Link: https://lkml.kernel.org/r/1564585504-3543-2-git-send-email-mojha@codeaurora.org	2019-08-06 12:49:16 +02:00
Mukesh Ojha	5f35d5a66b	locking/mutex: Make __mutex_owner static to mutex.c ... __mutex_owner() should only be used by the mutex api's. So, to put this restiction let's move the __mutex_owner() function definition from linux/mutex.h to mutex.c file. There exist functions that uses __mutex_owner() like mutex_is_locked() and mutex_trylock_recursive(), So to keep legacy thing intact move them as well and export them. Move mutex_waiter structure also to keep it private to the file. Signed-off-by: Mukesh Ojha <mojha@codeaurora.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: mingo@redhat.com Cc: will@kernel.org Link: https://lkml.kernel.org/r/1564585504-3543-1-git-send-email-mojha@codeaurora.org	2019-08-06 12:49:16 +02:00
Davidlohr Bueso	fce45cd411	locking/rwsem: Check for operations on an uninitialized rwsem ... Currently rwsems is the only locking primitive that lacks this debug feature. Add it under CONFIG_DEBUG_RWSEMS and do the magic checking in the locking fastpath (trylock) operation such that we cover all cases. The unlocking part is pretty straightforward. Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Acked-by: Waiman Long <longman@redhat.com> Cc: mingo@kernel.org Cc: Davidlohr Bueso <dave@stgolabs.net> Link: https://lkml.kernel.org/r/20190729044735.9632-1-dave@stgolabs.net	2019-08-06 12:49:15 +02:00
Waiman Long	91d2a812df	locking/rwsem: Make handoff writer optimistically spin on owner ... When the handoff bit is set by a writer, no other tasks other than the setting writer itself is allowed to acquire the lock. If the to-be-handoff'ed writer goes to sleep, there will be a wakeup latency period where the lock is free, but no one can acquire it. That is less than ideal. To reduce that latency, the handoff writer will now optimistically spin on the owner if it happens to be a on-cpu writer. It will spin until it releases the lock and the to-be-handoff'ed writer can then acquire the lock immediately without any delay. Of course, if the owner is not a on-cpu writer, the to-be-handoff'ed writer will have to sleep anyway. The optimistic spinning code is also modified to not stop spinning when the handoff bit is set. This will prevent an occasional setting of handoff bit from causing a bunch of optimistic spinners from entering into the wait queue causing significant reduction in throughput. On a 1-socket 22-core 44-thread Skylake system, the AIM7 shared_memory workload was run with 7000 users. The throughput (jobs/min) of the following kernels were as follows: 1) 5.2-rc6 - 8,092,486 2) 5.2-rc6 + tip's rwsem patches - 7,567,568 3) 5.2-rc6 + tip's rwsem patches + this patch - 7,954,545 Using perf-record(1), the %cpu time used by rwsem_down_write_slowpath(), rwsem_down_write_failed() and their callees for the 3 kernels were 1.70%, 5.46% and 2.08% respectively. Signed-off-by: Waiman Long <longman@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: x86@kernel.org Cc: Ingo Molnar <mingo@redhat.com> Cc: Will Deacon <will.deacon@arm.com> Cc: huang ying <huang.ying.caritas@gmail.com> Cc: Tim Chen <tim.c.chen@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: "H. Peter Anvin" <hpa@zytor.com> Link: https://lkml.kernel.org/r/20190625143913.24154-1-longman@redhat.com	2019-08-06 12:49:15 +02:00
Paul E. McKenney	519248f36d	lockdep: Make print_lock() address visible ... Security is a wonderful thing, but so is the ability to debug based on lockdep warnings. This commit therefore makes lockdep lock addresses visible in the clear. Signed-off-by: Paul E. McKenney <paulmck@linux.ibm.com>	2019-08-01 14:05:51 -07:00
Matthew Wilcox (Oracle)	7b3c92b85a	sched/core: Convert get_task_struct() to return the task ... Returning the pointer that was passed in allows us to write slightly more idiomatic code. Convert a few users. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20190704221323.24290-1-willy@infradead.org Signed-off-by: Ingo Molnar <mingo@kernel.org>	2019-07-25 15:51:54 +02:00
Bart Van Assche	8c779229d0	locking/lockdep: Report more stack trace statistics ... Report the number of stack traces and the number of stack trace hash chains. These two numbers are useful because these allow to estimate the number of stack trace hash collisions. Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Waiman Long <longman@redhat.com> Cc: Will Deacon <will.deacon@arm.com> Link: https://lkml.kernel.org/r/20190722182443.216015-5-bvanassche@acm.org Signed-off-by: Ingo Molnar <mingo@kernel.org>	2019-07-25 15:43:28 +02:00
Bart Van Assche	12593b7467	locking/lockdep: Reduce space occupied by stack traces ... Although commit 669de8bda8 ("kernel/workqueue: Use dynamic lockdep keys for workqueues") unregisters dynamic lockdep keys when a workqueue is destroyed, a side effect of that commit is that all stack traces associated with the lockdep key are leaked when a workqueue is destroyed. Fix this by storing each unique stack trace once. Other changes in this patch are: - Use NULL instead of { .nr_entries = 0 } to represent 'no trace'. - Store a pointer to a stack trace in struct lock_class and struct lock_list instead of storing 'nr_entries' and 'offset'. This patch avoids that the following program triggers the "BUG: MAX_STACK_TRACE_ENTRIES too low!" complaint: #include <fcntl.h> #include <unistd.h> int main() { for (;;) { int fd = open("/dev/infiniband/rdma_cm", O_RDWR); close(fd); } } Suggested-by: Peter Zijlstra <peterz@infradead.org> Reported-by: Eric Biggers <ebiggers@kernel.org> Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Waiman Long <longman@redhat.com> Cc: Will Deacon <will.deacon@arm.com> Cc: Yuyang Du <duyuyang@gmail.com> Link: https://lkml.kernel.org/r/20190722182443.216015-4-bvanassche@acm.org Signed-off-by: Ingo Molnar <mingo@kernel.org>	2019-07-25 15:43:27 +02:00
Bart Van Assche	364f6afc4f	locking/lockdep: Make it clear that what lock_class::key points at is not modified ... This patch does not change the behavior of the lockdep code. Signed-off-by: Bart Van Assche <bvanassche@acm.org> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Waiman Long <longman@redhat.com> Cc: Will Deacon <will.deacon@arm.com> Link: https://lkml.kernel.org/r/20190722182443.216015-2-bvanassche@acm.org Signed-off-by: Ingo Molnar <mingo@kernel.org>	2019-07-25 15:43:26 +02:00