mirror of
https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git
synced 2026-10-16 17:52:46 -04:00
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Greg Kroah-Hartman
|
750140e3c4 |
Revert "ANDROID: vfs: Add permission2 for filesystems with per mount permissions"
This reverts commit
|
||
|
Greg Kroah-Hartman
|
a93d8ad9ba |
This is the 5.4.42 stable release
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Merge 5.4.42 into android-5.4-stable
Changes in 5.4.42
net: dsa: Do not make user port errors fatal
shmem: fix possible deadlocks on shmlock_user_lock
net: phy: microchip_t1: add lan87xx_phy_init to initialize the lan87xx phy.
KVM: arm: vgic: Synchronize the whole guest on GIC{D,R}_I{S,C}ACTIVER read
gpio: pca953x: Fix pca953x_gpio_set_config
SUNRPC: Add "@len" parameter to gss_unwrap()
SUNRPC: Fix GSS privacy computation of auth->au_ralign
net/sonic: Fix a resource leak in an error handling path in 'jazz_sonic_probe()'
net: moxa: Fix a potential double 'free_irq()'
ftrace/selftests: workaround cgroup RT scheduling issues
drop_monitor: work around gcc-10 stringop-overflow warning
virtio-blk: handle block_device_operations callbacks after hot unplug
sun6i: dsi: fix gcc-4.8
net_sched: fix tcm_parent in tc filter dump
scsi: sg: add sg_remove_request in sg_write
selftests/bpf: fix goto cleanup label not defined
mmc: sdhci-acpi: Add SDHCI_QUIRK2_BROKEN_64_BIT_DMA for AMDI0040
dpaa2-eth: properly handle buffer size restrictions
net: fix a potential recursive NETDEV_FEAT_CHANGE
netlabel: cope with NULL catmap
net: phy: fix aneg restart in phy_ethtool_set_eee
net: stmmac: fix num_por initialization
pppoe: only process PADT targeted at local interfaces
Revert "ipv6: add mtu lock check in __ip6_rt_update_pmtu"
tcp: fix error recovery in tcp_zerocopy_receive()
tcp: fix SO_RCVLOWAT hangs with fat skbs
virtio_net: fix lockdep warning on 32 bit
dpaa2-eth: prevent array underflow in update_cls_rule()
hinic: fix a bug of ndo_stop
net: dsa: loop: Add module soft dependency
net: ipv4: really enforce backoff for redirects
netprio_cgroup: Fix unlimited memory leak of v2 cgroups
net: tcp: fix rx timestamp behavior for tcp_recvmsg
nfp: abm: fix error return code in nfp_abm_vnic_alloc()
r8169: re-establish support for RTL8401 chip version
umh: fix memory leak on execve failure
riscv: fix vdso build with lld
dmaengine: pch_dma.c: Avoid data race between probe and irq handler
dmaengine: mmp_tdma: Do not ignore slave config validation errors
dmaengine: mmp_tdma: Reset channel error on release
selftests/ftrace: Check the first record for kprobe_args_type.tc
cpufreq: intel_pstate: Only mention the BIOS disabling turbo mode once
ALSA: hda/hdmi: fix race in monitor detection during probe
drm/amd/powerplay: avoid using pm_en before it is initialized revised
drm/amd/display: check if REFCLK_CNTL register is present
drm/amd/display: Update downspread percent to match spreadsheet for DCN2.1
drm/qxl: lost qxl_bo_kunmap_atomic_page in qxl_image_init_helper()
drm/amdgpu: simplify padding calculations (v2)
drm/amdgpu: invalidate L2 before SDMA IBs (v2)
ipc/util.c: sysvipc_find_ipc() incorrectly updates position index
ALSA: hda/realtek - Fix S3 pop noise on Dell Wyse
gfs2: Another gfs2_walk_metadata fix
mmc: sdhci-pci-gli: Fix no irq handler from suspend
IB/hfi1: Fix another case where pq is left on waitlist
ACPI: EC: PM: Avoid premature returns from acpi_s2idle_wake()
pinctrl: sunrisepoint: Fix PAD lock register offset for SPT-H
pinctrl: baytrail: Enable pin configuration setting for GPIO chip
pinctrl: qcom: fix wrong write in update_dual_edge
pinctrl: cherryview: Add missing spinlock usage in chv_gpio_irq_handler
bpf: Fix error return code in map_lookup_and_delete_elem()
ALSA: firewire-lib: fix 'function sizeof not defined' error of tracepoints format
i40iw: Fix error handling in i40iw_manage_arp_cache()
drm/i915: Don't enable WaIncreaseLatencyIPCEnabled when IPC is disabled
bpf, sockmap: msg_pop_data can incorrecty set an sge length
bpf, sockmap: bpf_tcp_ingress needs to subtract bytes from sg.size
mmc: alcor: Fix a resource leak in the error path for ->probe()
mmc: sdhci-pci-gli: Fix can not access GL9750 after reboot from Windows 10
mmc: core: Check request type before completing the request
mmc: core: Fix recursive locking issue in CQE recovery path
mmc: block: Fix request completion in the CQE timeout path
gfs2: More gfs2_find_jhead fixes
fork: prevent accidental access to clone3 features
drm/amdgpu: force fbdev into vram
NFS: Fix fscache super_cookie index_key from changing after umount
nfs: fscache: use timespec64 in inode auxdata
NFSv4: Fix fscache cookie aux_data to ensure change_attr is included
netfilter: conntrack: avoid gcc-10 zero-length-bounds warning
drm/i915/gvt: Fix kernel oops for 3-level ppgtt guest
arm64: fix the flush_icache_range arguments in machine_kexec
nfs: fix NULL deference in nfs4_get_valid_delegation
SUNRPC: Signalled ASYNC tasks need to exit
netfilter: nft_set_rbtree: Introduce and use nft_rbtree_interval_start()
netfilter: nft_set_rbtree: Add missing expired checks
RDMA/rxe: Always return ERR_PTR from rxe_create_mmap_info()
IB/mlx4: Test return value of calls to ib_get_cached_pkey
IB/core: Fix potential NULL pointer dereference in pkey cache
RDMA/core: Fix double put of resource
RDMA/iw_cxgb4: Fix incorrect function parameters
hwmon: (da9052) Synchronize access with mfd
s390/ism: fix error return code in ism_probe()
mm, memcg: fix inconsistent oom event behavior
NFSv3: fix rpc receive buffer size for MOUNT call
pnp: Use list_for_each_entry() instead of open coding
net/rds: Use ERR_PTR for rds_message_alloc_sgs()
Stop the ad-hoc games with -Wno-maybe-initialized
gcc-10: disable 'zero-length-bounds' warning for now
gcc-10: disable 'array-bounds' warning for now
gcc-10: disable 'stringop-overflow' warning for now
gcc-10: disable 'restrict' warning for now
gcc-10 warnings: fix low-hanging fruit
gcc-10: mark more functions __init to avoid section mismatch warnings
gcc-10: avoid shadowing standard library 'free()' in crypto
usb: usbfs: correct kernel->user page attribute mismatch
USB: usbfs: fix mmap dma mismatch
ALSA: hda/realtek - Limit int mic boost for Thinkpad T530
ALSA: hda/realtek - Add COEF workaround for ASUS ZenBook UX431DA
ALSA: rawmidi: Fix racy buffer resize under concurrent accesses
ALSA: usb-audio: Add control message quirk delay for Kingston HyperX headset
usb: core: hub: limit HUB_QUIRK_DISABLE_AUTOSUSPEND to USB5534B
usb: host: xhci-plat: keep runtime active when removing host
usb: cdns3: gadget: prev_req->trb is NULL for ep0
USB: gadget: fix illegal array access in binding with UDC
usb: xhci: Fix NULL pointer dereference when enqueuing trbs from urb sg list
Make the "Reducing compressed framebufer size" message be DRM_INFO_ONCE()
ARM: dts: dra7: Fix bus_dma_limit for PCIe
ARM: dts: imx27-phytec-phycard-s-rdk: Fix the I2C1 pinctrl entries
ARM: dts: imx6dl-yapp4: Fix Ursa board Ethernet connection
drm/amd/display: add basic atomic check for cursor plane
powerpc/32s: Fix build failure with CONFIG_PPC_KUAP_DEBUG
cifs: fix leaked reference on requeued write
x86: Fix early boot crash on gcc-10, third try
x86/unwind/orc: Fix error handling in __unwind_start()
exec: Move would_dump into flush_old_exec
clk: rockchip: fix incorrect configuration of rk3228 aclk_gpu* clocks
dwc3: Remove check for HWO flag in dwc3_gadget_ep_reclaim_trb_sg()
fanotify: fix merging marks masks with FAN_ONDIR
usb: gadget: net2272: Fix a memory leak in an error handling path in 'net2272_plat_probe()'
usb: gadget: audio: Fix a missing error return value in audio_bind()
usb: gadget: legacy: fix error return code in gncm_bind()
usb: gadget: legacy: fix error return code in cdc_bind()
Revert "ALSA: hda/realtek: Fix pop noise on ALC225"
clk: Unlink clock if failed to prepare or enable
arm64: dts: meson-g12b-khadas-vim3: add missing frddr_a status property
arm64: dts: meson-g12-common: fix dwc2 clock names
arm64: dts: rockchip: Replace RK805 PMIC node name with "pmic" on rk3328 boards
arm64: dts: rockchip: Rename dwc3 device nodes on rk3399 to make dtc happy
arm64: dts: imx8mn: Change SDMA1 ahb clock for imx8mn
ARM: dts: r8a73a4: Add missing CMT1 interrupts
arm64: dts: renesas: r8a77980: Fix IPMMU VIP[01] nodes
ARM: dts: r8a7740: Add missing extal2 to CPG node
SUNRPC: Revert
|
||
Vasily Averin
|
05aae468d3 |
ipc/util.c: sysvipc_find_ipc() incorrectly updates position index
[ Upstream commit 5e698222c70257d13ae0816720dde57c56f81e15 ]
Commit 89163f93c6f9 ("ipc/util.c: sysvipc_find_ipc() should increase
position index") is causing this bug (seen on 5.6.8):
# ipcs -q
------ Message Queues --------
key msqid owner perms used-bytes messages
# ipcmk -Q
Message queue id: 0
# ipcs -q
------ Message Queues --------
key msqid owner perms used-bytes messages
0x82db8127 0 root 644 0 0
# ipcmk -Q
Message queue id: 1
# ipcs -q
------ Message Queues --------
key msqid owner perms used-bytes messages
0x82db8127 0 root 644 0 0
0x76d1fb2a 1 root 644 0 0
# ipcrm -q 0
# ipcs -q
------ Message Queues --------
key msqid owner perms used-bytes messages
0x76d1fb2a 1 root 644 0 0
0x76d1fb2a 1 root 644 0 0
# ipcmk -Q
Message queue id: 2
# ipcrm -q 2
# ipcs -q
------ Message Queues --------
key msqid owner perms used-bytes messages
0x76d1fb2a 1 root 644 0 0
0x76d1fb2a 1 root 644 0 0
# ipcmk -Q
Message queue id: 3
# ipcrm -q 1
# ipcs -q
------ Message Queues --------
key msqid owner perms used-bytes messages
0x7c982867 3 root 644 0 0
0x7c982867 3 root 644 0 0
0x7c982867 3 root 644 0 0
0x7c982867 3 root 644 0 0
Whenever an IPC item with a low id is deleted, the items with higher ids
are duplicated, as if filling a hole.
new_pos should jump through hole of unused ids, pos can be updated
inside "for" cycle.
Fixes: 89163f93c6f9 ("ipc/util.c: sysvipc_find_ipc() should increase position index")
Reported-by: Andreas Schwab <schwab@suse.de>
Reported-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Waiman Long <longman@redhat.com>
Cc: NeilBrown <neilb@suse.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Peter Oberparleiter <oberpar@linux.ibm.com>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Manfred Spraul <manfred@colorfullife.com>
Cc: <stable@vger.kernel.org>
Link: http://lkml.kernel.org/r/4921fe9b-9385-a2b4-1dc4-1099be6d2e39@virtuozzo.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
|
||
|
Greg Kroah-Hartman
|
5e169f689f |
This is the 5.4.41 stable release
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process in explicit 4k chunks KVM: s390: Remove false WARN_ON_ONCE for the PQAP instruction KVM: VMX: Explicitly clear RFLAGS.CF and RFLAGS.ZF in VM-Exit RSB path KVM: arm: vgic: Fix limit condition when writing to GICD_I[CS]ACTIVER KVM: arm64: Fix 32bit PC wrap-around arm64: hugetlb: avoid potential NULL dereference drm: ingenic-drm: add MODULE_DEVICE_TABLE ipc/mqueue.c: change __do_notify() to bypass check_kill_permission() epoll: atomically remove wait entry on wake up eventpoll: fix missing wakeup for ovflist in ep_poll_callback mm/page_alloc: fix watchdog soft lockups during set_zone_contiguous() mm: limit boost_watermark on small zones ceph: fix endianness bug when handling MDS session feature bits ceph: demote quotarealm lookup warning to a debug message staging: gasket: Check the return value of gasket_get_bar_index() coredump: fix crash when umh is disabled riscv: set max_pfn to the PFN of the last page iocost: protect iocg->abs_vdebt with iocg->waitq.lock batman-adv: fix batadv_nc_random_weight_tq batman-adv: Fix refcnt leak in batadv_show_throughput_override batman-adv: Fix refcnt leak in batadv_store_throughput_override batman-adv: Fix refcnt leak in batadv_v_ogm_process x86/entry/64: Fix unwind hints in register clearing code x86/entry/64: Fix unwind hints in kernel exit path x86/entry/64: Fix unwind hints in rewind_stack_do_exit() x86/unwind/orc: Don't skip the first frame for inactive tasks x86/unwind/orc: Prevent unwinding before ORC initialization x86/unwind/orc: Fix error path for bad ORC entry type x86/unwind/orc: Fix premature unwind stoppage due to IRET frames KVM: x86: Fixes posted interrupt check for IRQs delivery modes arch/x86/kvm/svm/sev.c: change flag passed to GUP fast in sev_pin_memory() netfilter: nat: never update the UDP checksum when it's 0 netfilter: nf_osf: avoid passing pointer to local var objtool: Fix stack offset tracking for indirect CFAs iommu/virtio: Reverse arguments to list_add scripts/decodecode: fix trapping instruction formatting mm, memcg: fix error return value of mem_cgroup_css_alloc() bdi: move bdi_dev_name out of line bdi: add a ->dev_name field to struct backing_dev_info fsnotify: replace inode pointer with an object id fanotify: merge duplicate events on parent and child Linux 5.4.41 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Ie6695b1dace8ca62579a57084608e9268e52fde9 |
||
Oleg Nesterov
|
1f3aa3e028 |
ipc/mqueue.c: change __do_notify() to bypass check_kill_permission()
commit b5f2006144c6ae941726037120fa1001ddede784 upstream. Commit |
||
|
Greg Kroah-Hartman
|
c736c6b27a |
This is the 5.4.36 stable release
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Merge 5.4.36 into android-5.4-stable
Changes in 5.4.36
ext4: fix extent_status fragmentation for plain files
f2fs: fix to avoid memory leakage in f2fs_listxattr
net, ip_tunnel: fix interface lookup with no key
arm64: errata: Hide CTR_EL0.DIC on systems affected by Neoverse-N1 #1542419
arm64: Fake the IminLine size on systems affected by Neoverse-N1 #1542419
arm64: compat: Workaround Neoverse-N1 #1542419 for compat user-space
arm64: Silence clang warning on mismatched value/register sizes
tools/testing/nvdimm: Fix compilation failure without CONFIG_DEV_DAX_PMEM_COMPAT
watchdog: reset last_hw_keepalive time at start
scsi: lpfc: Fix kasan slab-out-of-bounds error in lpfc_unreg_login
scsi: lpfc: Fix crash after handling a pci error
scsi: lpfc: Fix crash in target side cable pulls hitting WAIT_FOR_UNREG
scsi: libfc: If PRLI rejected, move rport to PLOGI state
ceph: return ceph_mdsc_do_request() errors from __get_parent()
ceph: don't skip updating wanted caps when cap is stale
pwm: rcar: Fix late Runtime PM enablement
nvme-tcp: fix possible crash in write_zeroes processing
scsi: iscsi: Report unbind session event when the target has been removed
tools/test/nvdimm: Fix out of tree build
ASoC: Intel: atom: Take the drv->lock mutex before calling sst_send_slot_map()
nvme: fix deadlock caused by ANA update wrong locking
drm/amd/display: Update stream adjust in dc_stream_adjust_vmin_vmax
dma-direct: fix data truncation in dma_direct_get_required_mask()
kernel/gcov/fs.c: gcov_seq_next() should increase position index
selftests: kmod: fix handling test numbers above 9
ipc/util.c: sysvipc_find_ipc() should increase position index
kconfig: qconf: Fix a few alignment issues
lib/raid6/test: fix build on distros whose /bin/sh is not bash
s390/cio: generate delayed uevent for vfio-ccw subchannels
s390/cio: avoid duplicated 'ADD' uevents
loop: Better discard support for block devices
Revert "powerpc/64: irq_work avoid interrupt when called with hardware irqs enabled"
powerpc/pseries: Fix MCE handling on pseries
nvme: fix compat address handling in several ioctls
pwm: renesas-tpu: Fix late Runtime PM enablement
pwm: bcm2835: Dynamically allocate base
perf/core: Disable page faults when getting phys address
drm/amd/display: Calculate scaling ratios on every medium/full update
ASoC: Intel: bytcr_rt5640: Add quirk for MPMAN MPWIN895CL tablet
ALSA: usb-audio: Add Pioneer DJ DJM-250MK2 quirk
xhci: Ensure link state is U3 after setting USB_SS_PORT_LS_U3
xhci: Wait until link state trainsits to U0 after setting USB_SS_PORT_LS_U0
xhci: Finetune host initiated USB3 rootport link suspend and resume
drm/amd/display: Not doing optimize bandwidth if flip pending.
PCI/PM: Add pcie_wait_for_link_delay()
libbpf: Fix readelf output parsing on powerpc with recent binutils
PCI: pciehp: Prevent deadlock on disconnect
ASoC: SOF: trace: fix unconditional free in trace release
tracing/selftests: Turn off timeout setting
virtio-blk: improve virtqueue error to BLK_STS
scsi: smartpqi: fix controller lockup observed during force reboot
scsi: smartpqi: fix call trace in device discovery
scsi: smartpqi: fix problem with unique ID for physical device
PCI/ASPM: Allow re-enabling Clock PM
PCI/PM: Add missing link delays required by the PCIe spec
cxgb4: fix adapter crash due to wrong MC size
cxgb4: fix large delays in PTP synchronization
ipv4: Update fib_select_default to handle nexthop objects
ipv6: fix restrict IPV6_ADDRFORM operation
macsec: avoid to set wrong mtu
macvlan: fix null dereference in macvlan_device_event()
mlxsw: Fix some IS_ERR() vs NULL bugs
net: bcmgenet: correct per TX/RX ring statistics
net/mlx4_en: avoid indirect call in TX completion
net: netrom: Fix potential nr_neigh refcnt leak in nr_add_node
net: openvswitch: ovs_ct_exit to be done under ovs_lock
net: stmmac: dwmac-meson8b: Add missing boundary to RGMII TX clock array
net/x25: Fix x25_neigh refcnt leak when receiving frame
sched: etf: do not assume all sockets are full blown
selftests: Fix suppress test in fib_tests.sh
tcp: cache line align MAX_TCP_HEADER
team: fix hang in team_mode_get()
vrf: Fix IPv6 with qdisc and xfrm
net: dsa: b53: Lookup VID in ARL searches when VLAN is enabled
net: dsa: b53: Fix valid setting for MDB entries
net: dsa: b53: Fix ARL register definitions
net: dsa: b53: Rework ARL bin logic
net: dsa: b53: b53_arl_rw_op() needs to select IVL or SVL
vxlan: use the correct nlattr array in NL_SET_ERR_MSG_ATTR
geneve: use the correct nlattr array in NL_SET_ERR_MSG_ATTR
xfrm: Always set XFRM_TRANSFORMED in xfrm{4,6}_output_finish
vrf: Check skb for XFRM_TRANSFORMED flag
KEYS: Avoid false positive ENOMEM error on key read
ALSA: hda: Remove ASUS ROG Zenith from the blacklist
ALSA: usb-audio: Add static mapping table for ALC1220-VB-based mobos
ALSA: usb-audio: Add connector notifier delegation
iio: core: remove extra semi-colon from devm_iio_device_register() macro
iio: st_sensors: rely on odr mask to know if odr can be set
iio: adc: stm32-adc: fix sleep in atomic context
iio: adc: ti-ads8344: properly byte swap value
iio: xilinx-xadc: Fix ADC-B powerdown
iio: xilinx-xadc: Fix clearing interrupt when enabling trigger
iio: xilinx-xadc: Fix sequencer configuration for aux channels in simultaneous mode
iio: xilinx-xadc: Make sure not exceed maximum samplerate
USB: sisusbvga: Change port variable from signed to unsigned
USB: Add USB_QUIRK_DELAY_CTRL_MSG and USB_QUIRK_DELAY_INIT for Corsair K70 RGB RAPIDFIRE
USB: early: Handle AMD's spec-compliant identifiers, too
USB: core: Fix free-while-in-use bug in the USB S-Glibrary
USB: hub: Fix handling of connect changes during sleep
USB: hub: Revert commit
|
||
|
Vasily Averin
|
cb5d960403 |
ipc/util.c: sysvipc_find_ipc() should increase position index
[ Upstream commit 89163f93c6f969da5811af5377cc10173583123b ] If seq_file .next function does not change position index, read after some lseek can generate unexpected output. https://bugzilla.kernel.org/show_bug.cgi?id=206283 Signed-off-by: Vasily Averin <vvs@virtuozzo.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Acked-by: Waiman Long <longman@redhat.com> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Manfred Spraul <manfred@colorfullife.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Ingo Molnar <mingo@redhat.com> Cc: NeilBrown <neilb@suse.com> Cc: Peter Oberparleiter <oberpar@linux.ibm.com> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/b7a20945-e315-8bb0-21e6-3875c14a8494@virtuozzo.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
||
|
Greg Kroah-Hartman
|
2c2101d181 |
This is the 5.4.23 stable release
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Apply quirk for MSI GP63, too ALSA: hda/realtek - Apply quirk for yet another MSI laptop ASoC: codec2codec: avoid invalid/double-free of pcm runtime ASoC: sun8i-codec: Fix setting DAI data format tpm: Initialize crypto_id of allocated_banks to HASH_ALGO__LAST ecryptfs: fix a memory leak bug in parse_tag_1_packet() ecryptfs: fix a memory leak bug in ecryptfs_init_messaging() btrfs: handle logged extent failure properly thunderbolt: Prevent crash if non-active NVMem file is read USB: misc: iowarrior: add support for 2 OEMed devices USB: misc: iowarrior: add support for the 28 and 28L devices USB: misc: iowarrior: add support for the 100 device e1000e: Use rtnl_lock to prevent race conditions between net and pci/pm floppy: check FDC index for errors before assigning it vt: fix scrollback flushing on background consoles vt: selection, handle pending signals in paste_selection vt: vt_ioctl: fix race in VT_RESIZEX staging: android: ashmem: Disallow ashmem memory from being remapped staging: vt6656: fix sign of rx_dbm to bb_pre_ed_rssi. xhci: Force Maximum Packet size for Full-speed bulk devices to valid range. xhci: fix runtime pm enabling for quirky Intel hosts xhci: apply XHCI_PME_STUCK_QUIRK to Intel Comet Lake platforms xhci: Fix memory leak when caching protocol extended capability PSI tables - take 2 usb: host: xhci: update event ring dequeue pointer on purpose USB: core: add endpoint-blacklist quirk USB: quirks: blacklist duplicate ep on Sound Devices USBPre2 usb: uas: fix a plug & unplug racing USB: Fix novation SourceControl XL after suspend USB: hub: Don't record a connect-change event during reset-resume USB: hub: Fix the broken detection of USB3 device in SMSC hub usb: dwc2: Fix SET/CLEAR_FEATURE and GET_STATUS flows usb: dwc3: gadget: Check for IOC/LST bit in TRB->ctrl fields usb: dwc3: debug: fix string position formatting mixup with ret and len scsi: Revert "target/core: Inline transport_lun_remove_cmd()" staging: rtl8188eu: Fix potential security hole staging: rtl8188eu: Fix potential overuse of kernel memory staging: rtl8723bs: Fix potential security hole staging: rtl8723bs: Fix potential overuse of kernel memory drm/panfrost: perfcnt: Reserve/use the AS attached to the perfcnt MMU context powerpc/8xx: Fix clearing of bits 20-23 in ITLB miss powerpc/eeh: Fix deadlock handling dead PHB powerpc/tm: Fix clearing MSR[TS] in current when reclaiming on signal delivery powerpc/entry: Fix an #if which should be an #ifdef in entry_32.S powerpc/hugetlb: Fix 512k hugepages on 8xx with 16k page size powerpc/hugetlb: Fix 8M hugepages on 8xx arm64: memory: Add missing brackets to untagged_addr() macro jbd2: fix ocfs2 corrupt when clearing block group bits x86/ima: use correct identifier for SetupMode variable x86/mce/amd: Publish the bank pointer only after setup has succeeded x86/mce/amd: Fix kobject lifetime x86/cpu/amd: Enable the fixed Instructions Retired counter IRPERF serial: 8250: Check UPF_IRQ_SHARED in advance tty/serial: atmel: manage shutdown in case of RS485 or ISO7816 mode tty: serial: imx: setup the correct sg entry for tx dma tty: serial: qcom_geni_serial: Fix RX cancel command failure serdev: ttyport: restore client ops on deregistration MAINTAINERS: Update drm/i915 bug filing URL ACPI: PM: s2idle: Check fixed wakeup events in acpi_s2idle_wake() Revert "ipc,sem: remove uneeded sem_undo_list lock usage in exit_sem()" mm/memcontrol.c: lost css_put in memcg_expand_shrinker_maps() nvme-multipath: Fix memory leak with ana_log_buf genirq/irqdomain: Make sure all irq domain flags are distinct mm/vmscan.c: don't round up scan size for online memory cgroup mm/sparsemem: pfn_to_page is not valid yet on SPARSEMEM lib/stackdepot.c: fix global out-of-bounds in stack_slabs mm: Avoid creating virtual address aliases in brk()/mmap()/mremap() drm/amdgpu/soc15: fix xclk for raven drm/amdgpu/gfx9: disable gfxoff when reading rlc clock drm/amdgpu/gfx10: disable gfxoff when reading rlc clock drm/nouveau/kms/gv100-: Re-set LUT after clearing for modesets drm/i915: Wean off drm_pci_alloc/drm_pci_free drm/i915: Update drm/i915 bug filing URL sched/psi: Fix OOB write when writing 0 bytes to PSI files KVM: nVMX: Don't emulate instructions in guest mode KVM: x86: don't notify userspace IOAPIC on edge-triggered interrupt EOI ext4: fix a data race in EXT4_I(inode)->i_disksize ext4: add cond_resched() to __ext4_find_entry() ext4: fix potential race between online resizing and write operations ext4: fix potential race between s_group_info online resizing and access ext4: fix potential race between s_flex_groups online resizing and access ext4: fix mount failure with quota configured as module ext4: rename s_journal_flag_rwsem to s_writepages_rwsem ext4: fix race between writepages and enabling EXT4_EXTENTS_FL KVM: nVMX: Refactor IO bitmap checks into helper function KVM: nVMX: Check IO instruction VM-exit conditions KVM: nVMX: clear PIN_BASED_POSTED_INTR from nested pinbased_ctls only when apicv is globally disabled KVM: nVMX: handle nested posted interrupts when apicv is disabled for L1 KVM: apic: avoid calculating pending eoi from an uninitialized val btrfs: destroy qgroup extent records on transaction abort btrfs: fix bytes_may_use underflow in prealloc error condtition btrfs: reset fs_root to NULL on error in open_ctree btrfs: do not check delayed items are empty for single transaction cleanup Btrfs: fix btrfs_wait_ordered_range() so that it waits for all ordered extents Btrfs: fix race between shrinking truncate and fiemap btrfs: don't set path->leave_spinning for truncate Btrfs: fix deadlock during fast fsync when logging prealloc extents beyond eof Revert "dmaengine: imx-sdma: Fix memory leak" drm/i915/gt: Detect if we miss WaIdleLiteRestore drm/i915/execlists: Always force a context reload when rewinding RING_TAIL drm/i915/gvt: more locking for ppgtt mm LRU list drm/bridge: tc358767: fix poll timeouts drm/i915/gt: Protect defer_request() from new waiters drm/msm/dpu: fix BGR565 vs RGB565 confusion scsi: Revert "RDMA/isert: Fix a recently introduced regression related to logout" scsi: Revert "target: iscsi: Wait for all commands to finish before freeing a session" usb: gadget: composite: Fix bMaxPower for SuperSpeedPlus usb: dwc2: Fix in ISOC request length checking staging: rtl8723bs: fix copy of overlapping memory staging: greybus: use after free in gb_audio_manager_remove_all() ASoC: atmel: fix atmel_ssc_set_audio link failure ASoC: fsl_sai: Fix exiting path on probing failure ecryptfs: replace BUG_ON with error handling code iommu/vt-d: Fix compile warning from intel-svm.h crypto: rename sm3-256 to sm3 in hash_algo_name genirq/proc: Reject invalid affinity masks (again) bpf, offload: Replace bitwise AND by logical AND in bpf_prog_offload_info_fill arm64: lse: Fix LSE atomics with LLVM io_uring: fix __io_iopoll_check deadlock in io_sq_thread ALSA: rawmidi: Avoid bit fields for state flags ALSA: seq: Avoid concurrent access to queue flags ALSA: seq: Fix concurrent access to queue current tick/time netfilter: xt_hashlimit: limit the max size of hashtable rxrpc: Fix call RCU cleanup using non-bh-safe locks io_uring: prevent sq_thread from spinning when it should stop ata: ahci: Add shutdown to freeze hardware resources of ahci xen: Enable interrupts when calling _cond_resched() net/mlx5e: Reset RQ doorbell counter before moving RQ state from RST to RDY net/mlx5: Fix sleep while atomic in mlx5_eswitch_get_vepa net/mlx5e: Fix crash in recovery flow without devlink reporter s390/kaslr: Fix casts in get_random s390/mm: Explicitly compare PAGE_DEFAULT_KEY against zero in storage_key_init_range bpf: Selftests build error in sockmap_basic.c ASoC: SOF: Intel: hda: Add iDisp4 DAI Linux 5.4.23 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I1d60f06bcb6ee74e5601976c7af79153c41af11c |
||
Ioanna Alifieraki
|
aa4f749f81 |
Revert "ipc,sem: remove uneeded sem_undo_list lock usage in exit_sem()"
commit edf28f4061afe4c2d9eb1c3323d90e882c1d6800 upstream. This reverts commit |
||
|
Greg Kroah-Hartman
|
87acfa0267 |
This is the 5.4.19 stable release
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Merge 5.4.19 into android-5.4
Changes in 5.4.19
sparc32: fix struct ipc64_perm type definition
bnxt_en: Move devlink_register before registering netdev
cls_rsvp: fix rsvp_policy
gtp: use __GFP_NOWARN to avoid memalloc warning
l2tp: Allow duplicate session creation with UDP
net: hsr: fix possible NULL deref in hsr_handle_frame()
net_sched: fix an OOB access in cls_tcindex
net: stmmac: Delete txtimer in suspend()
bnxt_en: Fix TC queue mapping.
rxrpc: Fix use-after-free in rxrpc_put_local()
rxrpc: Fix insufficient receive notification generation
rxrpc: Fix missing active use pinning of rxrpc_local object
rxrpc: Fix NULL pointer deref due to call->conn being cleared on disconnect
tcp: clear tp->total_retrans in tcp_disconnect()
tcp: clear tp->delivered in tcp_disconnect()
tcp: clear tp->data_segs{in|out} in tcp_disconnect()
tcp: clear tp->segs_{in|out} in tcp_disconnect()
ionic: fix rxq comp packet type mask
MAINTAINERS: correct entries for ISDN/mISDN section
netdevsim: fix stack-out-of-bounds in nsim_dev_debugfs_init()
bnxt_en: Fix logic that disables Bus Master during firmware reset.
media: uvcvideo: Avoid cyclic entity chains due to malformed USB descriptors
mfd: dln2: More sanity checking for endpoints
netfilter: ipset: fix suspicious RCU usage in find_set_and_id
ipc/msg.c: consolidate all xxxctl_down() functions
tracing/kprobes: Have uname use __get_str() in print_fmt
tracing: Fix sched switch start/stop refcount racy updates
rcu: Use *_ONCE() to protect lockless ->expmask accesses
rcu: Avoid data-race in rcu_gp_fqs_check_wake()
srcu: Apply *_ONCE() to ->srcu_last_gp_end
rcu: Use READ_ONCE() for ->expmask in rcu_read_unlock_special()
nvmet: Fix error print message at nvmet_install_queue function
nvmet: Fix controller use after free
Bluetooth: btusb: fix memory leak on fw
Bluetooth: btusb: Disable runtime suspend on Realtek devices
brcmfmac: Fix memory leak in brcmf_usbdev_qinit
usb: dwc3: gadget: Check END_TRANSFER completion
usb: dwc3: gadget: Delay starting transfer
usb: typec: tcpci: mask event interrupts when remove driver
objtool: Silence build output
usb: gadget: f_fs: set req->num_sgs as 0 for non-sg transfer
usb: gadget: legacy: set max_speed to super-speed
usb: gadget: f_ncm: Use atomic_t to track in-flight request
usb: gadget: f_ecm: Use atomic_t to track in-flight request
ALSA: usb-audio: Fix endianess in descriptor validation
ALSA: usb-audio: Annotate endianess in Scarlett gen2 quirk
ALSA: dummy: Fix PCM format loop in proc output
memcg: fix a crash in wb_workfn when a device disappears
mm/sparse.c: reset section's mem_map when fully deactivated
mmc: sdhci-pci: Make function amd_sdhci_reset static
utimes: Clamp the timestamps in notify_change()
mm/memory_hotplug: fix remove_memory() lockdep splat
mm: thp: don't need care deferred split queue in memcg charge move path
mm: move_pages: report the number of non-attempted pages
media/v4l2-core: set pages dirty upon releasing DMA buffers
media: v4l2-core: compat: ignore native command codes
media: v4l2-rect.h: fix v4l2_rect_map_inside() top/left adjustments
lib/test_kasan.c: fix memory leak in kmalloc_oob_krealloc_more()
irqdomain: Fix a memory leak in irq_domain_push_irq()
x86/cpu: Update cached HLE state on write to TSX_CTRL_CPUID_CLEAR
platform/x86: intel_scu_ipc: Fix interrupt support
ALSA: hda: Apply aligned MMIO access only conditionally
ALSA: hda: Add Clevo W65_67SB the power_save blacklist
ALSA: hda: Add JasperLake PCI ID and codec vid
arm64: acpi: fix DAIF manipulation with pNMI
KVM: arm64: Correct PSTATE on exception entry
KVM: arm/arm64: Correct CPSR on exception entry
KVM: arm/arm64: Correct AArch32 SPSR on exception entry
KVM: arm64: Only sign-extend MMIO up to register width
MIPS: syscalls: fix indentation of the 'SYSNR' message
MIPS: fix indentation of the 'RELOCS' message
MIPS: boot: fix typo in 'vmlinux.lzma.its' target
s390/mm: fix dynamic pagetable upgrade for hugetlbfs
powerpc/mmu_gather: enable RCU_TABLE_FREE even for !SMP case
powerpc/ptdump: Fix W+X verification
powerpc/xmon: don't access ASDR in VMs
powerpc/pseries: Advance pfn if section is not present in lmb_is_removable()
powerpc/32s: Fix bad_kuap_fault()
powerpc/32s: Fix CPU wake-up from sleep mode
tracing: Fix now invalid var_ref_vals assumption in trace action
PCI: tegra: Fix return value check of pm_runtime_get_sync()
PCI: keystone: Fix outbound region mapping
PCI: keystone: Fix link training retries initiation
PCI: keystone: Fix error handling when "num-viewport" DT property is not populated
mmc: spi: Toggle SPI polarity, do not hardcode it
ACPI: video: Do not export a non working backlight interface on MSI MS-7721 boards
ACPI / battery: Deal with design or full capacity being reported as -1
ACPI / battery: Use design-cap for capacity calculations if full-cap is not available
ACPI / battery: Deal better with neither design nor full capacity not being reported
alarmtimer: Unregister wakeup source when module get fails
fscrypt: don't print name of busy file when removing key
ubifs: don't trigger assertion on invalid no-key filename
ubifs: Fix wrong memory allocation
ubifs: Fix FS_IOC_SETFLAGS unexpectedly clearing encrypt flag
ubifs: Fix deadlock in concurrent bulk-read and writepage
mmc: sdhci-of-at91: fix memleak on clk_get failure
ASoC: SOF: core: free trace on errors
hv_balloon: Balloon up according to request page number
mfd: axp20x: Mark AXP20X_VBUS_IPSOUT_MGMT as volatile
nvmem: core: fix memory abort in cleanup path
crypto: api - Check spawn->alg under lock in crypto_drop_spawn
crypto: ccree - fix backlog memory leak
crypto: ccree - fix AEAD decrypt auth fail
crypto: ccree - fix pm wrongful error reporting
crypto: ccree - fix FDE descriptor sequence
crypto: ccree - fix PM race condition
padata: Remove broken queue flushing
fs: allow deduplication of eof block into the end of the destination file
scripts/find-unused-docs: Fix massive false positives
erofs: fix out-of-bound read for shifted uncompressed block
scsi: megaraid_sas: Do not initiate OCR if controller is not in ready state
scsi: qla2xxx: Fix mtcp dump collection failure
cpupower: Revert library ABI changes from commit
|
||
Lu Shuaibing
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59b2e64b16 |
ipc/msg.c: consolidate all xxxctl_down() functions
commit 889b331724c82c11e15ba0a60979cf7bded0a26c upstream. A use of uninitialized memory in msgctl_down() because msqid64 in ksys_msgctl hasn't been initialized. The local | msqid64 | is created in ksys_msgctl() and then passed into msgctl_down(). Along the way msqid64 is never initialized before msgctl_down() checks msqid64->msg_qbytes. KUMSAN(KernelUninitializedMemorySantizer, a new error detection tool) reports: ================================================================== BUG: KUMSAN: use of uninitialized memory in msgctl_down+0x94/0x300 Read of size 8 at addr ffff88806bb97eb8 by task syz-executor707/2022 CPU: 0 PID: 2022 Comm: syz-executor707 Not tainted 5.2.0-rc4+ #63 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014 Call Trace: dump_stack+0x75/0xae __kumsan_report+0x17c/0x3e6 kumsan_report+0xe/0x20 msgctl_down+0x94/0x300 ksys_msgctl.constprop.14+0xef/0x260 do_syscall_64+0x7e/0x1f0 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x4400e9 Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ffd869e0598 EFLAGS: 00000246 ORIG_RAX: 0000000000000047 RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004400e9 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 00000000006ca018 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000401970 R13: 0000000000401a00 R14: 0000000000000000 R15: 0000000000000000 The buggy address belongs to the page: page:ffffea0001aee5c0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 flags: 0x100000000000000() raw: 0100000000000000 0000000000000000 ffffffff01ae0101 0000000000000000 raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000 page dumped because: kumsan: bad access detected ================================================================== Syzkaller reproducer: msgctl$IPC_RMID(0x0, 0x0) C reproducer: // autogenerated by syzkaller (https://github.com/google/syzkaller) int main(void) { syscall(__NR_mmap, 0x20000000, 0x1000000, 3, 0x32, -1, 0); syscall(__NR_msgctl, 0, 0, 0); return 0; } [natechancellor@gmail.com: adjust indentation in ksys_msgctl] Link: https://github.com/ClangBuiltLinux/linux/issues/829 Link: http://lkml.kernel.org/r/20191218032932.37479-1-natechancellor@gmail.com Link: http://lkml.kernel.org/r/20190613014044.24234-1-shuaibinglu@126.com Signed-off-by: Lu Shuaibing <shuaibinglu@126.com> Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Suggested-by: Arnd Bergmann <arnd@arndb.de> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Manfred Spraul <manfred@colorfullife.com> Cc: NeilBrown <neilb@suse.com> From: Andrew Morton <akpm@linux-foundation.org> Subject: ipc/msg.c: consolidate all xxxctl_down() functions Each line here overflows 80 cols by exactly one character. Delete one tab per line to fix. Cc: Shaohua Li <shli@fb.com> Cc: Jens Axboe <axboe@kernel.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
|
Greg Kroah-Hartman
|
94139142d9 |
Merge 5.4-rc1-prelrease into android-mainline
To make the 5.4-rc1 merge easier, merge at a prerelease point in time before the final release happens. Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: If613d657fd0abf9910c5bf3435a745f01b89765e |
||
Joel Fernandes (Google)
|
984035ad7b |
ipc/sem.c: convert to use built-in RCU list checking
CONFIG_PROVE_RCU_LIST requires list_for_each_entry_rcu() to pass a lockdep expression if using srcu or locking for protection. It can only check regular RCU protection, all other protection needs to be passed as lockdep expression. Link: http://lkml.kernel.org/r/20190830231817.76862-2-joel@joelfernandes.org Signed-off-by: Joel Fernandes (Google) <joel@joelfernandes.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Bjorn Helgaas <bhelgaas@google.com> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: "Gustavo A. R. Silva" <gustavo@embeddedor.com> Cc: Jonathan Derrick <jonathan.derrick@intel.com> Cc: Keith Busch <keith.busch@intel.com> Cc: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Cc: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
Markus Elfring
|
c231740dd9 |
ipc/mqueue: improve exception handling in do_mq_notify()
Null pointers were assigned to local variables in a few cases as exception handling. The jump target “out” was used where no meaningful data processing actions should eventually be performed by branches of an if statement then. Use an additional jump target for calling dev_kfree_skb() directly. Return also directly after error conditions were detected when no extra clean-up is needed by this function implementation. Link: http://lkml.kernel.org/r/592ef10e-0b69-72d0-9789-fc48f638fdfd@web.de Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Manfred Spraul <manfred@colorfullife.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Markus Elfring
|
97b0b1ad58 |
ipc/mqueue.c: delete an unnecessary check before the macro call dev_kfree_skb()
dev_kfree_skb() input parameter validation, thus the test around the call is not needed. This issue was detected by using the Coccinelle software. Link: http://lkml.kernel.org/r/07477187-63e5-cc80-34c1-32dd16b38e12@web.de Signed-off-by: Markus Elfring <elfring@users.sourceforge.net> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Manfred Spraul <manfred@colorfullife.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
Greg Kroah-Hartman
|
bfa0399bc8 |
Merge Linus's 5.4-rc1-prerelease branch into android-mainline
This merges Linus's tree as of commit
|
||
Linus Torvalds
|
e170eb2771 |
Merge branch 'work.mount-base' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs mount API infrastructure updates from Al Viro: "Infrastructure bits of mount API conversions. The rest is more of per-filesystem updates and that will happen in separate pull requests" * 'work.mount-base' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: mtd: Provide fs_context-aware mount_mtd() replacement vfs: Create fs_context-aware mount_bdev() replacement new helper: get_tree_keyed() vfs: set fs_context::user_ns for reconfigure |
||
|
Greg Kroah-Hartman
|
bc378eba65 |
Linux 5.3
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAl1+quweHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGOOQH/Rg797V5t1rHK5VD iQMRner3IzGFroTBfFzlPSzjYFpBKJMAOjzaXqVDIsMOip9BuwEMHCapXMeJTYXN NrWv3m/J6DWDW9tTlHc9PErNcOkMaB8TZGjFfmQHwtyWgK5XghW3D1j8mzDvQi4N VIu4ZEWWgCW3hJ4pPUJ737UTbMMuCJlPNVg98DtKysJ8IOjniA8QICmKFlM6TrGg 4SzxWYIN3zH4l1QA1nFOfKE1WsJdaOj0X4Xtv8qlMCtON1q5SGHJRnDdONeRmOQA 2Ui/18Q5JJmogUyWitGcEgxB9gk/AG2XW5wvlEKeS8eZ0xpM0NsXu5gPLH0ROWON dnt75Lo= =imIe -----END PGP SIGNATURE----- Merge 5.3 into android-mainline Linux 5.3 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I2d3f5eea4589c23da4dec57af3f9e9d74b151eca |
||
Arnd Bergmann
|
fb377eb80c |
ipc: fix sparc64 ipc() wrapper
Matt bisected a sparc64 specific issue with semctl, shmctl and msgctl
to a commit from my y2038 series in linux-5.1, as I missed the custom
sys_ipc() wrapper that sparc64 uses in place of the generic version that
I patched.
The problem is that the sys_{sem,shm,msg}ctl() functions in the kernel
now do not allow being called with the IPC_64 flag any more, resulting
in a -EINVAL error when they don't recognize the command.
Instead, the correct way to do this now is to call the internal
ksys_old_{sem,shm,msg}ctl() functions to select the API version.
As we generally move towards these functions anyway, change all of
sparc_ipc() to consistently use those in place of the sys_*() versions,
and move the required ksys_*() declarations into linux/syscalls.h
The IS_ENABLED(CONFIG_SYSVIPC) check is required to avoid link
errors when ipc is disabled.
Reported-by: Matt Turner <mattst88@gmail.com>
Fixes:
|
||
Al Viro
|
533770cc0a |
new helper: get_tree_keyed()
For vfs_get_keyed_super users. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
||
|
Greg Kroah-Hartman
|
37766c2946 |
Linus 5.3-rc1
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAl0006weHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGaDUIAJ4oTyVWpMRZkfG6 vVY8qVMU3zlzEqRiyLYjkXoe/mGpuU/UVTyyStllxZ+Gg9da0mGwlugScKriPJof 4KRUDDTGX5DrfEOo+0brKvM+PYh9uGViPgKXzyv7i6BrnX2z3JdBR4bKNuEYlAJ9 N93Qg7v05SBHIq2Gfp3klrdWbsTTW2EaDTLbcgifXLnfKyFr47kwsmXAHPlTFP0p dYsZHHmf14Y9n1+ToZeVINgjQFr6mFn6ygY/PqTnd6vCgEEfP9eENJ4BZCtN1ZL/ V0BO9MyJ5iZV0AfwSEKydk+kDEvO16TG/nyDrECVuur7AXsBx18ZplVc787f6GK+ dyCQJ3U= =XLAF -----END PGP SIGNATURE----- Merge 5.3.0-rc1 into android-mainline Linus 5.3-rc1 release Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Ic171e37d4c21ffa495240c5538852bbb5a9dcce8 |
||
Daniel Rosenberg
|
4fd07efd90 |
ANDROID: vfs: Add permission2 for filesystems with per mount permissions
This allows filesystems to use their mount private data to
influence the permssions they return in permission2. It has
been separated into a new call to avoid disrupting current
permission users.
Test: HiKey/X15 + Pie + android-mainline,
and HiKey + AOSP Maser + android-mainline,
directories under /sdcard created,
output of mount is right,
CTS test collecting device infor works
Bug: 35848445
Change-Id: I9d416e3b8b6eca84ef3e336bd2af89ddd51df6ca
Signed-off-by: Daniel Rosenberg <drosen@google.com>
[AmitP: Minor refactoring of original patch to align with
changes from the following upstream commit
|
||
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Linus Torvalds
|
933a90bf4f |
Merge branch 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs mount updates from Al Viro: "The first part of mount updates. Convert filesystems to use the new mount API" * 'work.mount0' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (63 commits) mnt_init(): call shmem_init() unconditionally constify ksys_mount() string arguments don't bother with registering rootfs init_rootfs(): don't bother with init_ramfs_fs() vfs: Convert smackfs to use the new mount API vfs: Convert selinuxfs to use the new mount API vfs: Convert securityfs to use the new mount API vfs: Convert apparmorfs to use the new mount API vfs: Convert openpromfs to use the new mount API vfs: Convert xenfs to use the new mount API vfs: Convert gadgetfs to use the new mount API vfs: Convert oprofilefs to use the new mount API vfs: Convert ibmasmfs to use the new mount API vfs: Convert qib_fs/ipathfs to use the new mount API vfs: Convert efivarfs to use the new mount API vfs: Convert configfs to use the new mount API vfs: Convert binfmt_misc to use the new mount API convenience helper: get_tree_single() convenience helper get_tree_nodev() vfs: Kill sget_userns() ... |
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Matteo Croce
|
eec4844fae |
proc/sysctl: add shared variables for range check
In the sysctl code the proc_dointvec_minmax() function is often used to
validate the user supplied value between an allowed range. This
function uses the extra1 and extra2 members from struct ctl_table as
minimum and maximum allowed value.
On sysctl handler declaration, in every source file there are some
readonly variables containing just an integer which address is assigned
to the extra1 and extra2 members, so the sysctl range is enforced.
The special values 0, 1 and INT_MAX are very often used as range
boundary, leading duplication of variables like zero=0, one=1,
int_max=INT_MAX in different source files:
$ git grep -E '\.extra[12].*&(zero|one|int_max)' |wc -l
248
Add a const int array containing the most commonly used values, some
macros to refer more easily to the correct array member, and use them
instead of creating a local one for every object file.
This is the bloat-o-meter output comparing the old and new binary
compiled with the default Fedora config:
# scripts/bloat-o-meter -d vmlinux.o.old vmlinux.o
add/remove: 2/2 grow/shrink: 0/2 up/down: 24/-188 (-164)
Data old new delta
sysctl_vals - 12 +12
__kstrtab_sysctl_vals - 12 +12
max 14 10 -4
int_max 16 - -16
one 68 - -68
zero 128 28 -100
Total: Before=20583249, After=20583085, chg -0.00%
[mcroce@redhat.com: tipc: remove two unused variables]
Link: http://lkml.kernel.org/r/20190530091952.4108-1-mcroce@redhat.com
[akpm@linux-foundation.org: fix net/ipv6/sysctl_net_ipv6.c]
[arnd@arndb.de: proc/sysctl: make firmware loader table conditional]
Link: http://lkml.kernel.org/r/20190617130014.1713870-1-arnd@arndb.de
[akpm@linux-foundation.org: fix fs/eventpoll.c]
Link: http://lkml.kernel.org/r/20190430180111.10688-1-mcroce@redhat.com
Signed-off-by: Matteo Croce <mcroce@redhat.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Aaron Tomlin <atomlin@redhat.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
||
Kees Cook
|
a318f12ed8 |
ipc/mqueue.c: only perform resource calculation if user valid
Andreas Christoforou reported:
UBSAN: Undefined behaviour in ipc/mqueue.c:414:49 signed integer overflow:
9 * 2305843009213693951 cannot be represented in type 'long int'
...
Call Trace:
mqueue_evict_inode+0x8e7/0xa10 ipc/mqueue.c:414
evict+0x472/0x8c0 fs/inode.c:558
iput_final fs/inode.c:1547 [inline]
iput+0x51d/0x8c0 fs/inode.c:1573
mqueue_get_inode+0x8eb/0x1070 ipc/mqueue.c:320
mqueue_create_attr+0x198/0x440 ipc/mqueue.c:459
vfs_mkobj+0x39e/0x580 fs/namei.c:2892
prepare_open ipc/mqueue.c:731 [inline]
do_mq_open+0x6da/0x8e0 ipc/mqueue.c:771
Which could be triggered by:
struct mq_attr attr = {
.mq_flags = 0,
.mq_maxmsg = 9,
.mq_msgsize = 0x1fffffffffffffff,
.mq_curmsgs = 0,
};
if (mq_open("/testing", 0x40, 3, &attr) == (mqd_t) -1)
perror("mq_open");
mqueue_get_inode() was correctly rejecting the giant mq_msgsize, and
preparing to return -EINVAL. During the cleanup, it calls
mqueue_evict_inode() which performed resource usage tracking math for
updating "user", before checking if there was a valid "user" at all
(which would indicate that the calculations would be sane). Instead,
delay this check to after seeing a valid "user".
The overflow was real, but the results went unused, so while the flaw is
harmless, it's noisy for kernel fuzzers, so just fix it by moving the
calculation under the non-NULL "user" where it actually gets used.
Link: http://lkml.kernel.org/r/201906072207.ECB65450@keescook
Signed-off-by: Kees Cook <keescook@chromium.org>
Reported-by: Andreas Christoforou <andreaschristofo@gmail.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Davidlohr Bueso <dave@stgolabs.net>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
||
Thomas Gleixner
|
b886d83c5b |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 441
Based on 1 normalized pattern(s): this program is free software you can redistribute it and or modify it under the terms of the gnu general public license as published by the free software foundation version 2 of the license extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 315 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Allison Randal <allison@lohutok.net> Reviewed-by: Armijn Hemel <armijn@tjaldur.nl> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190531190115.503150771@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
|
Al Viro
|
709a643da8 |
mqueue: set ->user_ns before ->get_tree()
... so that we could lift the capability checks into ->get_tree() caller Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
||
|
Thomas Gleixner
|
8e8ccf4338 |
treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 52
Based on 1 normalized pattern(s): this file is released under gnu general public licence version 2 or at your option any later version see the file copying for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-or-later has been chosen to replace the boilerplate/reference in 1 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Richard Fontana <rfontana@redhat.com> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190520071857.941092988@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
Manfred Spraul
|
99db46ea29 |
ipc: do cyclic id allocation for the ipc object.
For ipcmni_extend mode, the sequence number space is only 7 bits. So
the chance of id reuse is relatively high compared with the non-extended
mode.
To alleviate this id reuse problem, this patch enables cyclic allocation
for the index to the radix tree (idx). The disadvantage is that this
can cause a slight slow-down of the fast path, as the radix tree could
be higher than necessary.
To limit the radix tree height, I have chosen the following limits:
1) The cycling is done over in_use*1.5.
2) At least, the cycling is done over
"normal" ipcnmi mode: RADIX_TREE_MAP_SIZE elements
"ipcmni_extended": 4096 elements
Result:
- for normal mode:
No change for <= 42 active ipc elements. With more than 42
active ipc elements, a 2nd level would be added to the radix
tree.
Without cyclic allocation, a 2nd level would be added only with
more than 63 active elements.
- for extended mode:
Cycling creates always at least a 2-level radix tree.
With more than 2730 active objects, a 3rd level would be
added, instead of > 4095 active objects until the 3rd level
is added without cyclic allocation.
For a 2-level radix tree compared to a 1-level radix tree, I have
observed < 1% performance impact.
Notes:
1) Normal "x=semget();y=semget();" is unaffected: Then the idx
is e.g. a and a+1, regardless if idr_alloc() or idr_alloc_cyclic()
is used.
2) The -1% happens in a microbenchmark after this situation:
x=semget();
for(i=0;i<4000;i++) {t=semget();semctl(t,0,IPC_RMID);}
y=semget();
Now perform semget calls on x and y that do not sleep.
3) The worst-case reuse cycle time is unfortunately unaffected:
If you have 2^24-1 ipc objects allocated, and get/remove the last
possible element in a loop, then the id is reused after 128
get/remove pairs.
Performance check:
A microbenchmark that performes no-op semop() randomly on two IDs,
with only these two IDs allocated.
The IDs were set using /proc/sys/kernel/sem_next_id.
The test was run 5 times, averages are shown.
1 & 2: Base (6.22 seconds for 10.000.000 semops)
1 & 40: -0.2%
1 & 3348: - 0.8%
1 & 27348: - 1.6%
1 & 15777204: - 3.2%
Or: ~12.6 cpu cycles per additional radix tree level.
The cpu is an Intel I3-5010U. ~1300 cpu cycles/syscall is slower
than what I remember (spectre impact?).
V2 of the patch:
- use "min" and "max"
- use RADIX_TREE_MAP_SIZE * RADIX_TREE_MAP_SIZE instead of
(2<<12).
[akpm@linux-foundation.org: fix max() warning]
Link: http://lkml.kernel.org/r/20190329204930.21620-3-longman@redhat.com
Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Acked-by: Waiman Long <longman@redhat.com>
Cc: "Luis R. Rodriguez" <mcgrof@kernel.org>
Cc: Kees Cook <keescook@chromium.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: "Eric W . Biederman" <ebiederm@xmission.com>
Cc: Takashi Iwai <tiwai@suse.de>
Cc: Davidlohr Bueso <dbueso@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
|
||
|
Manfred Spraul
|
3278a2c20c |
ipc: conserve sequence numbers in ipcmni_extend mode
Rewrite, based on the patch from Waiman Long: The mixing in of a sequence number into the IPC IDs is probably to avoid ID reuse in userspace as much as possible. With ipcmni_extend mode, the number of usable sequence numbers is greatly reduced leading to higher chance of ID reuse. To address this issue, we need to conserve the sequence number space as much as possible. Right now, the sequence number is incremented for every new ID created. In reality, we only need to increment the sequence number when new allocated ID is not greater than the last one allocated. It is in such case that the new ID may collide with an existing one. This is being done irrespective of the ipcmni mode. In order to avoid any races, the index is first allocated and then the pointer is replaced. Changes compared to the initial patch: - Handle failures from idr_alloc(). - Avoid that concurrent operations can see the wrong sequence number. (This is achieved by using idr_replace()). - IPCMNI_SEQ_SHIFT is not a constant, thus renamed to ipcmni_seq_shift(). - IPCMNI_SEQ_MAX is not a constant, thus renamed to ipcmni_seq_max(). Link: http://lkml.kernel.org/r/20190329204930.21620-2-longman@redhat.com Signed-off-by: Manfred Spraul <manfred@colorfullife.com> Signed-off-by: Waiman Long <longman@redhat.com> Suggested-by: Matthew Wilcox <willy@infradead.org> Acked-by: Waiman Long <longman@redhat.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Davidlohr Bueso <dbueso@suse.de> Cc: "Eric W . Biederman" <ebiederm@xmission.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Kees Cook <keescook@chromium.org> Cc: "Luis R. Rodriguez" <mcgrof@kernel.org> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Waiman Long
|
5ac893b8cb |
ipc: allow boot time extension of IPCMNI from 32k to 16M
The maximum number of unique System V IPC identifiers was limited to 32k. That limit should be big enough for most use cases. However, there are some users out there requesting for more, especially those that are migrating from Solaris which uses 24 bits for unique identifiers. To satisfy the need of those users, a new boot time kernel option "ipcmni_extend" is added to extend the IPCMNI value to 16M. This is a 512X increase which should be big enough for users out there that need a large number of unique IPC identifier. The use of this new option will change the pattern of the IPC identifiers returned by functions like shmget(2). An application that depends on such pattern may not work properly. So it should only be used if the users really need more than 32k of unique IPC numbers. This new option does have the side effect of reducing the maximum number of unique sequence numbers from 64k down to 128. So it is a trade-off. The computation of a new IPC id is not done in the performance critical path. So a little bit of additional overhead shouldn't have any real performance impact. Link: http://lkml.kernel.org/r/20190329204930.21620-1-longman@redhat.com Signed-off-by: Waiman Long <longman@redhat.com> Acked-by: Manfred Spraul <manfred@colorfullife.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Davidlohr Bueso <dbueso@suse.de> Cc: "Eric W . Biederman" <ebiederm@xmission.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Kees Cook <keescook@chromium.org> Cc: "Luis R. Rodriguez" <mcgrof@kernel.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Davidlohr Bueso
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a5091fda4e |
ipc/mqueue: optimize msg_get()
Our msg priorities became an rbtree as of
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Davidlohr Bueso
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0ecb58210b |
ipc/mqueue: remove redundant wq task assignment
We already store the current task fo the new waiter before calling wq_sleep() in both send and recv paths. Trivially remove the redundant assignment. Link: http://lkml.kernel.org/r/20190321190216.1719-1-dave@stgolabs.net Signed-off-by: Davidlohr Bueso <dbueso@suse.de> Cc: Manfred Spraul <manfred@colorfullife.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Li Rongqing
|
d6a2946a88 |
ipc: prevent lockup on alloc_msg and free_msg
msgctl10 of ltp triggers the following lockup When CONFIG_KASAN is enabled on large memory SMP systems, the pages initialization can take a long time, if msgctl10 requests a huge block memory, and it will block rcu scheduler, so release cpu actively. After adding schedule() in free_msg, free_msg can not be called when holding spinlock, so adding msg to a tmp list, and free it out of spinlock rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-1 rcu_node (CPUs 16-31): P32505 rcu: Tasks blocked on level-1 rcu_node (CPUs 48-63): P34978 rcu: (detected by 11, t=35024 jiffies, g=44237529, q=16542267) msgctl10 R running task 21608 32505 2794 0x00000082 Call Trace: preempt_schedule_irq+0x4c/0xb0 retint_kernel+0x1b/0x2d RIP: 0010:__is_insn_slot_addr+0xfb/0x250 Code: 82 1d 00 48 8b 9b 90 00 00 00 4c 89 f7 49 c1 ee 03 e8 59 83 1d 00 48 b8 00 00 00 00 00 fc ff df 4c 39 eb 48 89 9d 58 ff ff ff <41> c6 04 06 f8 74 66 4c 8d 75 98 4c 89 f1 48 c1 e9 03 48 01 c8 48 RSP: 0018:ffff88bce041f758 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: ffffffff8471bc50 RCX: ffffffff828a2a57 RDX: dffffc0000000000 RSI: dffffc0000000000 RDI: ffff88bce041f780 RBP: ffff88bce041f828 R08: ffffed15f3f4c5b3 R09: ffffed15f3f4c5b3 R10: 0000000000000001 R11: ffffed15f3f4c5b2 R12: 000000318aee9b73 R13: ffffffff8471bc50 R14: 1ffff1179c083ef0 R15: 1ffff1179c083eec kernel_text_address+0xc1/0x100 __kernel_text_address+0xe/0x30 unwind_get_return_address+0x2f/0x50 __save_stack_trace+0x92/0x100 create_object+0x380/0x650 __kmalloc+0x14c/0x2b0 load_msg+0x38/0x1a0 do_msgsnd+0x19e/0xcf0 do_syscall_64+0x117/0x400 entry_SYSCALL_64_after_hwframe+0x49/0xbe rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-1 rcu_node (CPUs 0-15): P32170 rcu: (detected by 14, t=35016 jiffies, g=44237525, q=12423063) msgctl10 R running task 21608 32170 32155 0x00000082 Call Trace: preempt_schedule_irq+0x4c/0xb0 retint_kernel+0x1b/0x2d RIP: 0010:lock_acquire+0x4d/0x340 Code: 48 81 ec c0 00 00 00 45 89 c6 4d 89 cf 48 8d 6c 24 20 48 89 3c 24 48 8d bb e4 0c 00 00 89 74 24 0c 48 c7 44 24 20 b3 8a b5 41 <48> c1 ed 03 48 c7 44 24 28 b4 25 18 84 48 c7 44 24 30 d0 54 7a 82 RSP: 0018:ffff88af83417738 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: ffff88bd335f3080 RCX: 0000000000000002 RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff88bd335f3d64 RBP: ffff88af83417758 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: ffffed13f3f745b2 R12: 0000000000000000 R13: 0000000000000002 R14: 0000000000000000 R15: 0000000000000000 is_bpf_text_address+0x32/0xe0 kernel_text_address+0xec/0x100 __kernel_text_address+0xe/0x30 unwind_get_return_address+0x2f/0x50 __save_stack_trace+0x92/0x100 save_stack+0x32/0xb0 __kasan_slab_free+0x130/0x180 kfree+0xfa/0x2d0 free_msg+0x24/0x50 do_msgrcv+0x508/0xe60 do_syscall_64+0x117/0x400 entry_SYSCALL_64_after_hwframe+0x49/0xbe Davidlohr said: "So after releasing the lock, the msg rbtree/list is empty and new calls will not see those in the newly populated tmp_msg list, and therefore they cannot access the delayed msg freeing pointers, which is good. Also the fact that the node_cache is now freed before the actual messages seems to be harmless as this is wanted for msg_insert() avoiding GFP_ATOMIC allocations, and after releasing the info->lock the thing is freed anyway so it should not change things" Link: http://lkml.kernel.org/r/1552029161-4957-1-git-send-email-lirongqing@baidu.com Signed-off-by: Li RongQing <lirongqing@baidu.com> Signed-off-by: Zhang Yu <zhangyu31@baidu.com> Reviewed-by: Davidlohr Bueso <dbueso@suse.de> Cc: Manfred Spraul <manfred@colorfullife.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
|
80f232121b |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
"Highlights:
1) Support AES128-CCM ciphers in kTLS, from Vakul Garg.
2) Add fib_sync_mem to control the amount of dirty memory we allow to
queue up between synchronize RCU calls, from David Ahern.
3) Make flow classifier more lockless, from Vlad Buslov.
4) Add PHY downshift support to aquantia driver, from Heiner
Kallweit.
5) Add SKB cache for TCP rx and tx, from Eric Dumazet. This reduces
contention on SLAB spinlocks in heavy RPC workloads.
6) Partial GSO offload support in XFRM, from Boris Pismenny.
7) Add fast link down support to ethtool, from Heiner Kallweit.
8) Use siphash for IP ID generator, from Eric Dumazet.
9) Pull nexthops even further out from ipv4/ipv6 routes and FIB
entries, from David Ahern.
10) Move skb->xmit_more into a per-cpu variable, from Florian
Westphal.
11) Improve eBPF verifier speed and increase maximum program size,
from Alexei Starovoitov.
12) Eliminate per-bucket spinlocks in rhashtable, and instead use bit
spinlocks. From Neil Brown.
13) Allow tunneling with GUE encap in ipvs, from Jacky Hu.
14) Improve link partner cap detection in generic PHY code, from
Heiner Kallweit.
15) Add layer 2 encap support to bpf_skb_adjust_room(), from Alan
Maguire.
16) Remove SKB list implementation assumptions in SCTP, your's truly.
17) Various cleanups, optimizations, and simplifications in r8169
driver. From Heiner Kallweit.
18) Add memory accounting on TX and RX path of SCTP, from Xin Long.
19) Switch PHY drivers over to use dynamic featue detection, from
Heiner Kallweit.
20) Support flow steering without masking in dpaa2-eth, from Ioana
Ciocoi.
21) Implement ndo_get_devlink_port in netdevsim driver, from Jiri
Pirko.
22) Increase the strict parsing of current and future netlink
attributes, also export such policies to userspace. From Johannes
Berg.
23) Allow DSA tag drivers to be modular, from Andrew Lunn.
24) Remove legacy DSA probing support, also from Andrew Lunn.
25) Allow ll_temac driver to be used on non-x86 platforms, from Esben
Haabendal.
26) Add a generic tracepoint for TX queue timeouts to ease debugging,
from Cong Wang.
27) More indirect call optimizations, from Paolo Abeni"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1763 commits)
cxgb4: Fix error path in cxgb4_init_module
net: phy: improve pause mode reporting in phy_print_status
dt-bindings: net: Fix a typo in the phy-mode list for ethernet bindings
net: macb: Change interrupt and napi enable order in open
net: ll_temac: Improve error message on error IRQ
net/sched: remove block pointer from common offload structure
net: ethernet: support of_get_mac_address new ERR_PTR error
net: usb: smsc: fix warning reported by kbuild test robot
staging: octeon-ethernet: Fix of_get_mac_address ERR_PTR check
net: dsa: support of_get_mac_address new ERR_PTR error
net: dsa: sja1105: Fix status initialization in sja1105_get_ethtool_stats
vrf: sit mtu should not be updated when vrf netdev is the link
net: dsa: Fix error cleanup path in dsa_init_module
l2tp: Fix possible NULL pointer dereference
taprio: add null check on sched_nest to avoid potential null pointer dereference
net: mvpp2: cls: fix less than zero check on a u32 variable
net_sched: sch_fq: handle non connected flows
net_sched: sch_fq: do not assume EDT packets are ordered
net: hns3: use devm_kcalloc when allocating desc_cb
net: hns3: some cleanup for struct hns3_enet_ring
...
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Al Viro
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015d795618 |
mqueue: switch to ->free_inode()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> |
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NeilBrown
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8f0db01800 |
rhashtable: use bit_spin_locks to protect hash bucket.
This patch changes rhashtables to use a bit_spin_lock on BIT(1) of the bucket pointer to lock the hash chain for that bucket. The benefits of a bit spin_lock are: - no need to allocate a separate array of locks. - no need to have a configuration option to guide the choice of the size of this array - locking cost is often a single test-and-set in a cache line that will have to be loaded anyway. When inserting at, or removing from, the head of the chain, the unlock is free - writing the new address in the bucket head implicitly clears the lock bit. For __rhashtable_insert_fast() we ensure this always happens when adding a new key. - even when lockings costs 2 updates (lock and unlock), they are in a cacheline that needs to be read anyway. The cost of using a bit spin_lock is a little bit of code complexity, which I think is quite manageable. Bit spin_locks are sometimes inappropriate because they are not fair - if multiple CPUs repeatedly contend of the same lock, one CPU can easily be starved. This is not a credible situation with rhashtable. Multiple CPUs may want to repeatedly add or remove objects, but they will typically do so at different buckets, so they will attempt to acquire different locks. As we have more bit-locks than we previously had spinlocks (by at least a factor of two) we can expect slightly less contention to go with the slightly better cache behavior and reduced memory consumption. To enhance type checking, a new struct is introduced to represent the pointer plus lock-bit that is stored in the bucket-table. This is "struct rhash_lock_head" and is empty. A pointer to this needs to be cast to either an unsigned lock, or a "struct rhash_head *" to be useful. Variables of this type are most often called "bkt". Previously "pprev" would sometimes point to a bucket, and sometimes a ->next pointer in an rhash_head. As these are now different types, pprev is NULL when it would have pointed to the bucket. In that case, 'blk' is used, together with correct locking protocol. Signed-off-by: NeilBrown <neilb@suse.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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Linus Torvalds
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7b47a9e7c8 |
Merge branch 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs mount infrastructure updates from Al Viro: "The rest of core infrastructure; no new syscalls in that pile, but the old parts are switched to new infrastructure. At that point conversions of individual filesystems can happen independently; some are done here (afs, cgroup, procfs, etc.), there's also a large series outside of that pile dealing with NFS (quite a bit of option-parsing stuff is getting used there - it's one of the most convoluted filesystems in terms of mount-related logics), but NFS bits are the next cycle fodder. It got seriously simplified since the last cycle; documentation is probably the weakest bit at the moment - I considered dropping the commit introducing Documentation/filesystems/mount_api.txt (cutting the size increase by quarter ;-), but decided that it would be better to fix it up after -rc1 instead. That pile allows to do followup work in independent branches, which should make life much easier for the next cycle. fs/super.c size increase is unpleasant; there's a followup series that allows to shrink it considerably, but I decided to leave that until the next cycle" * 'work.mount' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (41 commits) afs: Use fs_context to pass parameters over automount afs: Add fs_context support vfs: Add some logging to the core users of the fs_context log vfs: Implement logging through fs_context vfs: Provide documentation for new mount API vfs: Remove kern_mount_data() hugetlbfs: Convert to fs_context cpuset: Use fs_context kernfs, sysfs, cgroup, intel_rdt: Support fs_context cgroup: store a reference to cgroup_ns into cgroup_fs_context cgroup1_get_tree(): separate "get cgroup_root to use" into a separate helper cgroup_do_mount(): massage calling conventions cgroup: stash cgroup_root reference into cgroup_fs_context cgroup2: switch to option-by-option parsing cgroup1: switch to option-by-option parsing cgroup: take options parsing into ->parse_monolithic() cgroup: fold cgroup1_mount() into cgroup1_get_tree() cgroup: start switching to fs_context ipc: Convert mqueue fs to fs_context proc: Add fs_context support to procfs ... |
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Gustavo A. R. Silva
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4a2ae92993 |
ipc/sem.c: replace kvmalloc/memset with kvzalloc and use struct_size
Use kvzalloc() instead of kvmalloc() and memset(). Also, make use of the struct_size() helper instead of the open-coded version in order to avoid any potential type mistakes. This code was detected with the help of Coccinelle. Link: http://lkml.kernel.org/r/20190131214221.GA28930@embeddedor Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Davidlohr Bueso <dave@stgolabs.net> Cc: Manfred Spraul <manfred@colorfullife.com> Cc: Kees Cook <keescook@chromium.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Mathieu Malaterre
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667da6a268 |
ipc: annotate implicit fall through
There is a plan to build the kernel with -Wimplicit-fallthrough and this place in the code produced a warning (W=1). This commit remove the following warning: ipc/sem.c:1683:6: warning: this statement may fall through [-Wimplicit-fallthrough=] Link: http://lkml.kernel.org/r/20190114203608.18218-1-malat@debian.org Signed-off-by: Mathieu Malaterre <malat@debian.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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David Howells
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935c6912b1 |
ipc: Convert mqueue fs to fs_context
Convert the mqueue filesystem to use the filesystem context stuff.
Notes:
(1) The relevant ipc namespace is selected in when the context is
initialised (and it defaults to the current task's ipc namespace).
The caller can override this before calling vfs_get_tree().
(2) Rather than simply calling kern_mount_data(), mq_init_ns() and
mq_internal_mount() create a context, adjust it and then do the rest
of the mount procedure.
(3) The lazy mqueue mounting on creation of a new namespace is retained
from a previous patch, but the avoidance of sget() if no superblock
yet exists is reverted and the superblock is again keyed on the
namespace pointer.
Yes, there was a performance gain in not searching the superblock
hash, but it's only paid once per ipc namespace - and only if someone
uses mqueue within that namespace, so I'm not sure it's worth it,
especially as calling sget() allows avoidance of recursion.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Arnd Bergmann
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8dabe7245b |
y2038: syscalls: rename y2038 compat syscalls
A lot of system calls that pass a time_t somewhere have an implementation using a COMPAT_SYSCALL_DEFINEx() on 64-bit architectures, and have been reworked so that this implementation can now be used on 32-bit architectures as well. The missing step is to redefine them using the regular SYSCALL_DEFINEx() to get them out of the compat namespace and make it possible to build them on 32-bit architectures. Any system call that ends in 'time' gets a '32' suffix on its name for that version, while the others get a '_time32' suffix, to distinguish them from the normal version, which takes a 64-bit time argument in the future. In this step, only 64-bit architectures are changed, doing this rename first lets us avoid touching the 32-bit architectures twice. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> |
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Arnd Bergmann
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275f22148e |
ipc: rename old-style shmctl/semctl/msgctl syscalls
The behavior of these system calls is slightly different between architectures, as determined by the CONFIG_ARCH_WANT_IPC_PARSE_VERSION symbol. Most architectures that implement the split IPC syscalls don't set that symbol and only get the modern version, but alpha, arm, microblaze, mips-n32, mips-n64 and xtensa expect the caller to pass the IPC_64 flag. For the architectures that so far only implement sys_ipc(), i.e. m68k, mips-o32, powerpc, s390, sh, sparc, and x86-32, we want the new behavior when adding the split syscalls, so we need to distinguish between the two groups of architectures. The method I picked for this distinction is to have a separate system call entry point: sys_old_*ctl() now uses ipc_parse_version, while sys_*ctl() does not. The system call tables of the five architectures are changed accordingly. As an additional benefit, we no longer need the configuration specific definition for ipc_parse_version(), it always does the same thing now, but simply won't get called on architectures with the modern interface. A small downside is that on architectures that do set ARCH_WANT_IPC_PARSE_VERSION, we now have an extra set of entry points that are never called. They only add a few bytes of bloat, so it seems better to keep them compared to adding yet another Kconfig symbol. I considered adding new syscall numbers for the IPC_64 variants for consistency, but decided against that for now. Signed-off-by: Arnd Bergmann <arnd@arndb.de> |
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Arnd Bergmann
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58fa4a410f |
ipc: introduce ksys_ipc()/compat_ksys_ipc() for s390
The sys_ipc() and compat_ksys_ipc() functions are meant to only be used from the system call table, not called by another function. Introduce ksys_*() interfaces for this purpose, as we have done for many other system calls. Link: https://lore.kernel.org/lkml/20190116131527.2071570-3-arnd@arndb.de Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Heiko Carstens <heiko.carstens@de.ibm.com> [heiko.carstens@de.ibm.com: compile fix for !CONFIG_COMPAT] Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> |
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Waiman Long
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8c81ddd2ac |
ipc: IPCMNI limit check for semmni
For SysV semaphores, the semmni value is the last part of the 4-element sem number array. To make semmni behave in a similar way to msgmni and shmmni, we can't directly use the _minmax handler. Instead, a special sem specific handler is added to check the last argument to make sure that it is limited to the [0, IPCMNI] range. An error will be returned if this is not the case. Link: http://lkml.kernel.org/r/1536352137-12003-3-git-send-email-longman@redhat.com Signed-off-by: Waiman Long <longman@redhat.com> Reviewed-by: Davidlohr Bueso <dave@stgolabs.net> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Kees Cook <keescook@chromium.org> Cc: Luis R. Rodriguez <mcgrof@kernel.org> Cc: Matthew Wilcox <willy@infradead.org> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Waiman Long
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6730e65801 |
ipc: IPCMNI limit check for msgmni and shmmni
Patch series "ipc: IPCMNI limit check for *mni & increase that limit", v9. The sysctl parameters msgmni, shmmni and semmni have an inherent limit of IPC_MNI (32k). However, users may not be aware of that because they can write a value much higher than that without getting any error or notification. Reading the parameters back will show the newly written values which are not real. The real IPCMNI limit is now enforced to make sure that users won't put in an unrealistic value. The first 2 patches enforce the limits. There are also users out there requesting increase in the IPCMNI value. The last 2 patches attempt to do that by using a boot kernel parameter "ipcmni_extend" to increase the IPCMNI limit from 32k to 8M if the users really want the extended value. This patch (of 4): A user can write arbitrary integer values to msgmni and shmmni sysctl parameters without getting error, but the actual limit is really IPCMNI (32k). This can mislead users as they think they can get a value that is not real. The right limits are now set for msgmni and shmmni so that the users will become aware if they set a value outside of the acceptable range. Link: http://lkml.kernel.org/r/1536352137-12003-2-git-send-email-longman@redhat.com Signed-off-by: Waiman Long <longman@redhat.com> Acked-by: Luis R. Rodriguez <mcgrof@kernel.org> Reviewed-by: Davidlohr Bueso <dave@stgolabs.net> Cc: Kees Cook <keescook@chromium.org> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Matthew Wilcox <willy@infradead.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Takashi Iwai <tiwai@suse.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Linus Torvalds
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4dcb9239da |
Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timekeeping updates from Thomas Gleixner:
"The timers and timekeeping departement provides:
- Another large y2038 update with further preparations for providing
the y2038 safe timespecs closer to the syscalls.
- An overhaul of the SHCMT clocksource driver
- SPDX license identifier updates
- Small cleanups and fixes all over the place"
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (31 commits)
tick/sched : Remove redundant cpu_online() check
clocksource/drivers/dw_apb: Add reset control
clocksource: Remove obsolete CLOCKSOURCE_OF_DECLARE
clocksource/drivers: Unify the names to timer-* format
clocksource/drivers/sh_cmt: Add R-Car gen3 support
dt-bindings: timer: renesas: cmt: document R-Car gen3 support
clocksource/drivers/sh_cmt: Properly line-wrap sh_cmt_of_table[] initializer
clocksource/drivers/sh_cmt: Fix clocksource width for 32-bit machines
clocksource/drivers/sh_cmt: Fixup for 64-bit machines
clocksource/drivers/sh_tmu: Convert to SPDX identifiers
clocksource/drivers/sh_mtu2: Convert to SPDX identifiers
clocksource/drivers/sh_cmt: Convert to SPDX identifiers
clocksource/drivers/renesas-ostm: Convert to SPDX identifiers
clocksource: Convert to using %pOFn instead of device_node.name
tick/broadcast: Remove redundant check
RISC-V: Request newstat syscalls
y2038: signal: Change rt_sigtimedwait to use __kernel_timespec
y2038: socket: Change recvmmsg to use __kernel_timespec
y2038: sched: Change sched_rr_get_interval to use __kernel_timespec
y2038: utimes: Rework #ifdef guards for compat syscalls
...
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Linus Torvalds
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ba9f6f8954 |
Merge branch 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace
Pull siginfo updates from Eric Biederman: "I have been slowly sorting out siginfo and this is the culmination of that work. The primary result is in several ways the signal infrastructure has been made less error prone. The code has been updated so that manually specifying SEND_SIG_FORCED is never necessary. The conversion to the new siginfo sending functions is now complete, which makes it difficult to send a signal without filling in the proper siginfo fields. At the tail end of the patchset comes the optimization of decreasing the size of struct siginfo in the kernel from 128 bytes to about 48 bytes on 64bit. The fundamental observation that enables this is by definition none of the known ways to use struct siginfo uses the extra bytes. This comes at the cost of a small user space observable difference. For the rare case of siginfo being injected into the kernel only what can be copied into kernel_siginfo is delivered to the destination, the rest of the bytes are set to 0. For cases where the signal and the si_code are known this is safe, because we know those bytes are not used. For cases where the signal and si_code combination is unknown the bits that won't fit into struct kernel_siginfo are tested to verify they are zero, and the send fails if they are not. I made an extensive search through userspace code and I could not find anything that would break because of the above change. If it turns out I did break something it will take just the revert of a single change to restore kernel_siginfo to the same size as userspace siginfo. Testing did reveal dependencies on preferring the signo passed to sigqueueinfo over si->signo, so bit the bullet and added the complexity necessary to handle that case. Testing also revealed bad things can happen if a negative signal number is passed into the system calls. Something no sane application will do but something a malicious program or a fuzzer might do. So I have fixed the code that performs the bounds checks to ensure negative signal numbers are handled" * 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (80 commits) signal: Guard against negative signal numbers in copy_siginfo_from_user32 signal: Guard against negative signal numbers in copy_siginfo_from_user signal: In sigqueueinfo prefer sig not si_signo signal: Use a smaller struct siginfo in the kernel signal: Distinguish between kernel_siginfo and siginfo signal: Introduce copy_siginfo_from_user and use it's return value signal: Remove the need for __ARCH_SI_PREABLE_SIZE and SI_PAD_SIZE signal: Fail sigqueueinfo if si_signo != sig signal/sparc: Move EMT_TAGOVF into the generic siginfo.h signal/unicore32: Use force_sig_fault where appropriate signal/unicore32: Generate siginfo in ucs32_notify_die signal/unicore32: Use send_sig_fault where appropriate signal/arc: Use force_sig_fault where appropriate signal/arc: Push siginfo generation into unhandled_exception signal/ia64: Use force_sig_fault where appropriate signal/ia64: Use the force_sig(SIGSEGV,...) in ia64_rt_sigreturn signal/ia64: Use the generic force_sigsegv in setup_frame signal/arm/kvm: Use send_sig_mceerr signal/arm: Use send_sig_fault where appropriate signal/arm: Use force_sig_fault where appropriate ... |
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Kees Cook
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59cf0a9339 |
ipc/shm.c: use ERR_CAST() for shm_lock() error return
This uses ERR_CAST() instead of an open-coded cast, as it is casting
across structure pointers, which upsets __randomize_layout:
ipc/shm.c: In function `shm_lock':
ipc/shm.c:209:9: note: randstruct: casting between randomized structure pointer types (ssa): `struct shmid_kernel' and `struct kern_ipc_perm'
return (void *)ipcp;
^~~~~~~~~~~~
Link: http://lkml.kernel.org/r/20180919180722.GA15073@beast
Fixes:
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Eric W. Biederman
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ae7795bc61 |
signal: Distinguish between kernel_siginfo and siginfo
Linus recently observed that if we did not worry about the padding member in struct siginfo it is only about 48 bytes, and 48 bytes is much nicer than 128 bytes for allocating on the stack and copying around in the kernel. The obvious thing of only adding the padding when userspace is including siginfo.h won't work as there are sigframe definitions in the kernel that embed struct siginfo. So split siginfo in two; kernel_siginfo and siginfo. Keeping the traditional name for the userspace definition. While the version that is used internally to the kernel and ultimately will not be padded to 128 bytes is called kernel_siginfo. The definition of struct kernel_siginfo I have put in include/signal_types.h A set of buildtime checks has been added to verify the two structures have the same field offsets. To make it easy to verify the change kernel_siginfo retains the same size as siginfo. The reduction in size comes in a following change. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com> |