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https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git
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| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Greg Kroah-Hartman
|
ef75d6901c |
This is the 5.4.255 stable release
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Merge 5.4.255 into android11-5.4-stable
Changes in 5.4.255
mmc: sdhci_f_sdh30: convert to devm_platform_ioremap_resource
mmc: sdhci-f-sdh30: Replace with sdhci_pltfm
selftests: forwarding: tc_flower: Relax success criterion
macsec: Fix traffic counters/statistics
macsec: use DEV_STATS_INC()
drm/radeon: Fix integer overflow in radeon_cs_parser_init
ALSA: emu10k1: roll up loops in DSP setup code for Audigy
quota: Properly disable quotas when add_dquot_ref() fails
quota: fix warning in dqgrab()
HID: add quirk for 03f0:464a HP Elite Presenter Mouse
ovl: check type and offset of struct vfsmount in ovl_entry
udf: Fix uninitialized array access for some pathnames
fs: jfs: Fix UBSAN: array-index-out-of-bounds in dbAllocDmapLev
MIPS: dec: prom: Address -Warray-bounds warning
FS: JFS: Fix null-ptr-deref Read in txBegin
FS: JFS: Check for read-only mounted filesystem in txBegin
media: v4l2-mem2mem: add lock to protect parameter num_rdy
media: platform: mediatek: vpu: fix NULL ptr dereference
usb: chipidea: imx: don't request QoS for imx8ulp
gfs2: Fix possible data races in gfs2_show_options()
pcmcia: rsrc_nonstatic: Fix memory leak in nonstatic_release_resource_db()
Bluetooth: L2CAP: Fix use-after-free
drm/amdgpu: Fix potential fence use-after-free v2
ALSA: hda/realtek: Add quirks for Unis H3C Desktop B760 & Q760
ALSA: hda: fix a possible null-pointer dereference due to data race in snd_hdac_regmap_sync()
powerpc/kasan: Disable KCOV in KASAN code
IMA: allow/fix UML builds
iio: add addac subdirectory
iio: adc: stx104: Utilize iomap interface
iio: adc: stx104: Implement and utilize register structures
iio: stx104: Move to addac subdirectory
iio: addac: stx104: Fix race condition for stx104_write_raw()
iio: addac: stx104: Fix race condition when converting analog-to-digital
iommu/amd: Fix "Guest Virtual APIC Table Root Pointer" configuration in IRTE
PM-runtime: add tracepoints for usage_count changes
PM: runtime: Add pm_runtime_get_if_active()
ALSA: hda: Fix unhandled register update during auto-suspend period
irqchip/mips-gic: Get rid of the reliance on irq_cpu_online()
irqchip/mips-gic: Use raw spinlock for gic_lock
interconnect: Move internal structs into a separate file
interconnect: Add helpers for enabling/disabling a path
usb: dwc3: qcom: Add helper functions to enable,disable wake irqs
USB: dwc3: qcom: fix NULL-deref on suspend
mmc: bcm2835: fix deferred probing
mmc: sunxi: fix deferred probing
leds: trigger: netdev: Recheck NETDEV_LED_MODE_LINKUP on dev rename
tracing/probes: Have process_fetch_insn() take a void * instead of pt_regs
tracing/probes: Fix to update dynamic data counter if fetcharg uses it
net/ncsi: Fix gma flag setting after response
nfsd4: kill warnings on testing stateids with mismatched clientids
nfsd: Remove incorrect check in nfsd4_validate_stateid
virtio-mmio: convert to devm_platform_ioremap_resource
virtio-mmio: Use to_virtio_mmio_device() to simply code
virtio-mmio: don't break lifecycle of vm_dev
i2c: bcm-iproc: Fix bcm_iproc_i2c_isr deadlock issue
fbdev: mmp: fix value check in mmphw_probe()
powerpc/rtas_flash: allow user copy to flash block cache objects
tty: serial: fsl_lpuart: Clear the error flags by writing 1 for lpuart32 platforms
btrfs: fix BUG_ON condition in btrfs_cancel_balance
net: xfrm: Fix xfrm_address_filter OOB read
net: af_key: fix sadb_x_filter validation
xfrm: interface: rename xfrm_interface.c to xfrm_interface_core.c
xfrm: fix slab-use-after-free in decode_session6
ip6_vti: fix slab-use-after-free in decode_session6
ip_vti: fix potential slab-use-after-free in decode_session6
xfrm: add NULL check in xfrm_update_ae_params
selftests: mirror_gre_changes: Tighten up the TTL test match
ipvs: fix racy memcpy in proc_do_sync_threshold
netfilter: nft_dynset: disallow object maps
team: Fix incorrect deletion of ETH_P_8021AD protocol vid from slaves
i40e: fix misleading debug logs
net: dsa: mv88e6xxx: Wait for EEPROM done before HW reset
sock: Fix misuse of sk_under_memory_pressure()
net: do not allow gso_size to be set to GSO_BY_FRAGS
bus: ti-sysc: Improve reset to work with modules with no sysconfig
bus: ti-sysc: Flush posted write on enable before reset
ARM: dts: imx7s: Drop dma-apb interrupt-names
ARM: dts: imx: Adjust dma-apbh node name
ARM: dts: imx: Set default tuning step for imx7d usdhc
ARM: dts: imx: Set default tuning step for imx6sx usdhc
ASoC: rt5665: add missed regulator_bulk_disable
ASoC: meson: axg-tdm-formatter: fix channel slot allocation
serial: 8250: Fix oops for port->pm on uart_change_pm()
ALSA: usb-audio: Add support for Mythware XA001AU capture and playback interfaces.
cifs: Release folio lock on fscache read hit.
mmc: wbsd: fix double mmc_free_host() in wbsd_init()
mmc: block: Fix in_flight[issue_type] value error
netfilter: set default timeout to 3 secs for sctp shutdown send and recv state
af_unix: Fix null-ptr-deref in unix_stream_sendpage().
virtio-net: set queues after driver_ok
net: fix the RTO timer retransmitting skb every 1ms if linear option is enabled
net: xfrm: Amend XFRMA_SEC_CTX nla_policy structure
mmc: f-sdh30: fix order of function calls in sdhci_f_sdh30_remove
net: phy: broadcom: stub c45 read/write for 54810
PCI: acpiphp: Reassign resources on bridge if necessary
dlm: improve plock logging if interrupted
dlm: replace usage of found with dedicated list iterator variable
fs: dlm: add pid to debug log
fs: dlm: change plock interrupted message to debug again
fs: dlm: use dlm_plock_info for do_unlock_close
fs: dlm: fix mismatch of plock results from userspace
MIPS: cpu-features: Enable octeon_cache by cpu_type
MIPS: cpu-features: Use boot_cpu_type for CPU type based features
fbdev: Improve performance of sys_imageblit()
fbdev: Fix sys_imageblit() for arbitrary image widths
fbdev: fix potential OOB read in fast_imageblit()
dm integrity: increase RECALC_SECTORS to improve recalculate speed
dm integrity: reduce vmalloc space footprint on 32-bit architectures
ALSA: pcm: Set per-card upper limit of PCM buffer allocations
ALSA: pcm: Use SG-buffer only when direct DMA is available
ALSA: pcm: Fix potential data race at PCM memory allocation helpers
regmap: Account for register length in SMBus I/O limits
ASoC: fsl_sai: Refine enable/disable TE/RE sequence in trigger()
ASoC: fsl_sai: Add new added registers and new bit definition
ASoC: fsl_sai: Disable bit clock with transmitter
drm/amd/display: do not wait for mpc idle if tg is disabled
drm/amd/display: check TG is non-null before checking if enabled
tracing: Fix memleak due to race between current_tracer and trace
octeontx2-af: SDP: fix receive link config
sock: annotate data-races around prot->memory_pressure
dccp: annotate data-races in dccp_poll()
ipvlan: Fix a reference count leak warning in ipvlan_ns_exit()
net: bgmac: Fix return value check for fixed_phy_register()
net: bcmgenet: Fix return value check for fixed_phy_register()
net: validate veth and vxcan peer ifindexes
igb: Avoid starting unnecessary workqueues
net/sched: fix a qdisc modification with ambiguous command request
net: remove bond_slave_has_mac_rcu()
bonding: fix macvlan over alb bond support
ibmveth: Use dcbf rather than dcbfl
NFSv4: Fix dropped lock for racing OPEN and delegation return
clk: Fix slab-out-of-bounds error in devm_clk_release()
nfsd: Fix race to FREE_STATEID and cl_revoked
batman-adv: Trigger events for auto adjusted MTU
batman-adv: Don't increase MTU when set by user
batman-adv: Do not get eth header before batadv_check_management_packet
batman-adv: Fix TT global entry leak when client roamed back
batman-adv: Fix batadv_v_ogm_aggr_send memory leak
batman-adv: Hold rtnl lock during MTU update via netlink
lib/clz_ctz.c: Fix __clzdi2() and __ctzdi2() for 32-bit kernels
radix tree: remove unused variable
media: vcodec: Fix potential array out-of-bounds in encoder queue_setup
PCI: acpiphp: Use pci_assign_unassigned_bridge_resources() only for non-root bus
drm/display/dp: Fix the DP DSC Receiver cap size
x86/fpu: Set X86_FEATURE_OSXSAVE feature after enabling OSXSAVE in CR4
mm: allow a controlled amount of unfairness in the page lock
rtnetlink: Reject negative ifindexes in RTM_NEWLINK
ALSA: pcm: Fix build error on m68k and others
Revert "ALSA: pcm: Use SG-buffer only when direct DMA is available"
interconnect: Do not skip aggregation for disabled paths
ALSA: pcm: Check for null pointer of pointer substream before dereferencing it
Documentation/sysctl: document page_lock_unfairness
irqchip/mips-gic: Don't touch vl_map if a local interrupt is not routable
scsi: snic: Fix double free in snic_tgt_create()
scsi: core: raid_class: Remove raid_component_add()
clk: Fix undefined reference to `clk_rate_exclusive_{get,put}'
pinctrl: renesas: rza2: Add lock around pinctrl_generic{{add,remove}_group,{add,remove}_function}
dma-buf/sw_sync: Avoid recursive lock during fence signal
Linux 5.4.255
Change-Id: I564de3c67511761f8a5d1d21b5373a5cbdf90dca
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
|
||
Linus Torvalds
|
c404e1e197 |
mm: allow a controlled amount of unfairness in the page lock
commit 5ef64cc8987a9211d3f3667331ba3411a94ddc79 upstream.
Commit 2a9127fcf229 ("mm: rewrite wait_on_page_bit_common() logic") made
the page locking entirely fair, in that if a waiter came in while the
lock was held, the lock would be transferred to the lockers strictly in
order.
That was intended to finally get rid of the long-reported watchdog
failures that involved the page lock under extreme load, where a process
could end up waiting essentially forever, as other page lockers stole
the lock from under it.
It also improved some benchmarks, but it ended up causing huge
performance regressions on others, simply because fair lock behavior
doesn't end up giving out the lock as aggressively, causing better
worst-case latency, but potentially much worse average latencies and
throughput.
Instead of reverting that change entirely, this introduces a controlled
amount of unfairness, with a sysctl knob to tune it if somebody needs
to. But the default value should hopefully be good for any normal load,
allowing a few rounds of lock stealing, but enforcing the strict
ordering before the lock has been stolen too many times.
There is also a hint from Matthieu Baerts that the fair page coloring
may end up exposing an ABBA deadlock that is hidden by the usual
optimistic lock stealing, and while the unfairness doesn't fix the
fundamental issue (and I'm still looking at that), it avoids it in
practice.
The amount of unfairness can be modified by writing a new value to the
'sysctl_page_lock_unfairness' variable (default value of 5, exposed
through /proc/sys/vm/page_lock_unfairness), but that is hopefully
something we'd use mainly for debugging rather than being necessary for
any deep system tuning.
This whole issue has exposed just how critical the page lock can be, and
how contended it gets under certain locks. And the main contention
doesn't really seem to be anything related to IO (which was the origin
of this lock), but for things like just verifying that the page file
mapping is stable while faulting in the page into a page table.
Link: https://lore.kernel.org/linux-fsdevel/ed8442fd-6f54-dd84-cd4a-941e8b7ee603@MichaelLarabel.com/
Link: https://www.phoronix.com/scan.php?page=article&item=linux-50-59&num=1
Link: https://lore.kernel.org/linux-fsdevel/c560a38d-8313-51fb-b1ec-e904bd8836bc@tessares.net/
Reported-and-tested-by: Michael Larabel <Michael@michaellarabel.com>
Tested-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Cc: Dave Chinner <david@fromorbit.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Chris Mason <clm@fb.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Amir Goldstein <amir73il@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Saeed Mirzamohammadi <saeed.mirzamohammadi@oracle.com>
Tested-by: Maximilian Heyne <mheyne@amazon.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
||
|
Linus Torvalds
|
5a9d35543f |
UPSTREAM: proc: avoid integer type confusion in get_proc_long
commit e6cfaf34be9fcd1a8285a294e18986bfc41a409c upstream. proc_get_long() is passed a size_t, but then assigns it to an 'int' variable for the length. Let's not do that, even if our IO paths are limited to MAX_RW_COUNT (exactly because of these kinds of type errors). So do the proper test in the rigth type. Bug: 261488859 Reported-by: Kyle Zeng <zengyhkyle@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Lee Jones <joneslee@google.com> Change-Id: I75a06fe777c638b82ef3fbd1346e985065ab17f2 Signed-off-by: Lee Jones <joneslee@google.com> |
||
|
Linus Torvalds
|
cffda199e1 |
UPSTREAM: proc: proc_skip_spaces() shouldn't think it is working on C strings
commit bce9332220bd677d83b19d21502776ad555a0e73 upstream. proc_skip_spaces() seems to think it is working on C strings, and ends up being just a wrapper around skip_spaces() with a really odd calling convention. Instead of basing it on skip_spaces(), it should have looked more like proc_skip_char(), which really is the exact same function (except it skips a particular character, rather than whitespace). So use that as inspiration, odd coding and all. Now the calling convention actually makes sense and works for the intended purpose. Bug: 261488859 Reported-and-tested-by: Kyle Zeng <zengyhkyle@gmail.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Lee Jones <joneslee@google.com> Change-Id: Ie21bf20f3b92b78c5f31093b354a77b4133810e7 Signed-off-by: Lee Jones <joneslee@google.com> |
||
|
Linus Torvalds
|
0390da0565 |
proc: proc_skip_spaces() shouldn't think it is working on C strings
commit bce9332220bd677d83b19d21502776ad555a0e73 upstream. proc_skip_spaces() seems to think it is working on C strings, and ends up being just a wrapper around skip_spaces() with a really odd calling convention. Instead of basing it on skip_spaces(), it should have looked more like proc_skip_char(), which really is the exact same function (except it skips a particular character, rather than whitespace). So use that as inspiration, odd coding and all. Now the calling convention actually makes sense and works for the intended purpose. Reported-and-tested-by: Kyle Zeng <zengyhkyle@gmail.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
|
Linus Torvalds
|
dd3124a051 |
proc: avoid integer type confusion in get_proc_long
commit e6cfaf34be9fcd1a8285a294e18986bfc41a409c upstream. proc_get_long() is passed a size_t, but then assigns it to an 'int' variable for the length. Let's not do that, even if our IO paths are limited to MAX_RW_COUNT (exactly because of these kinds of type errors). So do the proper test in the rigth type. Reported-by: Kyle Zeng <zengyhkyle@gmail.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
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Greg Kroah-Hartman
|
836d95bfdc |
This is the 5.4.207 stable release
-----BEGIN PGP SIGNATURE----- iQIzBAABCAAdFiEEZH8oZUiU471FcZm+ONu9yGCSaT4FAmLZohoACgkQONu9yGCS aT4D3RAA1Je6ingEk1e/IMmfWhNu/0AOrULMbrNBdM/WDOlIQLNBchhMa81UXEh7 OJzt+NyBcuV4x5UdXj1fK3erJXA7tKM3s7BGY7OcXPDMpZjf9uOUV2Tg1Jw1jDbW TV7lnWv1YA7ze3eOx6qoR9sNPh4kYiW5DG2ivY8JMblKEz5EPCdvyPSSW+s8kmpg ZdyJ0pa3fnS0Di421DzJ+7R1U2t4C1eAz1FkngAyPM47GzwJoJxgcP4Q8syBmwGY qylUnrLTBMRtpngayaP15tQtYckGTbsnTUNCTjoW7BhbABkWysc2aVnCYZDLqBck C4XjEfBMLByICokuab0ewrzeVzvvHaY31hnhf33hYn6pgIoS5oy4T3mN7T8yEJz9 zsr+unBioZFiIOqiVgu5A2Rwn3+1x8qOmLZ/x35jqZQCmh0ndlmHUhkdjl3y/68S XWvP4zpYBAR7QlW3WsGtFeI9Kbeh6y2tH0J79N5CjctAZFAvUaZd3cSfh3Vck02/ 7Wo9vs5zV8ZvRkdRWEawkrfe/PUImnDmvkv56nTH79bI7qIlpOU6kS6gy0sDzdGl YRKv4+jwE9/hJAcWW5S/U3wbfZMxMA6wdt8QcWsn0pXs1WFUQgWeNuyO2HNodff3 jlp25lEi3C3NSUycmm9IjuG2241hPDYnhqeX0Q4B5ciPHCD4w3o= =KtMr -----END PGP SIGNATURE----- Merge 5.4.207 into android11-5.4-lts Changes in 5.4.207 ALSA: hda - Add fixup for Dell Latitidue E5430 ALSA: hda/conexant: Apply quirk for another HP ProDesk 600 G3 model ALSA: hda/realtek - Fix headset mic problem for a HP machine with alc671 ALSA: hda/realtek - Fix headset mic problem for a HP machine with alc221 ALSA: hda/realtek - Enable the headset-mic on a Xiaomi's laptop xen/netback: avoid entering xenvif_rx_next_skb() with an empty rx queue tracing/histograms: Fix memory leak problem net: sock: tracing: Fix sock_exceed_buf_limit not to dereference stale pointer ip: fix dflt addr selection for connected nexthop ARM: 9213/1: Print message about disabled Spectre workarounds only once ARM: 9214/1: alignment: advance IT state after emulating Thumb instruction wifi: mac80211: fix queue selection for mesh/OCB interfaces cgroup: Use separate src/dst nodes when preloading css_sets for migration drm/panfrost: Fix shrinker list corruption by madvise IOCTL nilfs2: fix incorrect masking of permission flags for symlinks Revert "evm: Fix memleak in init_desc" sched/rt: Disable RT_RUNTIME_SHARE by default ext4: fix race condition between ext4_write and ext4_convert_inline_data ARM: dts: imx6qdl-ts7970: Fix ngpio typo and count ARM: 9209/1: Spectre-BHB: avoid pr_info() every time a CPU comes out of idle ARM: 9210/1: Mark the FDT_FIXED sections as shareable drm/i915: fix a possible refcount leak in intel_dp_add_mst_connector() ima: Fix a potential integer overflow in ima_appraise_measurement ASoC: sgtl5000: Fix noise on shutdown/remove net: stmmac: dwc-qos: Disable split header for Tegra194 inetpeer: Fix data-races around sysctl. net: Fix data-races around sysctl_mem. cipso: Fix data-races around sysctl. icmp: Fix data-races around sysctl. ipv4: Fix a data-race around sysctl_fib_sync_mem. ARM: dts: at91: sama5d2: Fix typo in i2s1 node ARM: dts: sunxi: Fix SPI NOR campatible on Orange Pi Zero drm/i915/gt: Serialize TLB invalidates with GT resets icmp: Fix a data-race around sysctl_icmp_ratelimit. icmp: Fix a data-race around sysctl_icmp_ratemask. raw: Fix a data-race around sysctl_raw_l3mdev_accept. ipv4: Fix data-races around sysctl_ip_dynaddr. net: ftgmac100: Hold reference returned by of_get_child_by_name() sfc: fix use after free when disabling sriov seg6: fix skb checksum evaluation in SRH encapsulation/insertion seg6: fix skb checksum in SRv6 End.B6 and End.B6.Encaps behaviors seg6: bpf: fix skb checksum in bpf_push_seg6_encap() sfc: fix kernel panic when creating VF mm: sysctl: fix missing numa_stat when !CONFIG_HUGETLB_PAGE virtio_mmio: Add missing PM calls to freeze/restore virtio_mmio: Restore guest page size on resume netfilter: br_netfilter: do not skip all hooks with 0 priority cpufreq: pmac32-cpufreq: Fix refcount leak bug platform/x86: hp-wmi: Ignore Sanitization Mode event net: tipc: fix possible refcount leak in tipc_sk_create() NFC: nxp-nci: don't print header length mismatch on i2c error nvme: fix regression when disconnect a recovering ctrl net: sfp: fix memory leak in sfp_probe() ASoC: ops: Fix off by one in range control validation ASoC: wm5110: Fix DRE control ASoC: cs47l15: Fix event generation for low power mux control ASoC: madera: Fix event generation for OUT1 demux ASoC: madera: Fix event generation for rate controls irqchip: or1k-pic: Undefine mask_ack for level triggered hardware x86: Clear .brk area at early boot soc: ixp4xx/npe: Fix unused match warning ARM: dts: stm32: use the correct clock source for CEC on stm32mp151 signal handling: don't use BUG_ON() for debugging USB: serial: ftdi_sio: add Belimo device ids usb: typec: add missing uevent when partner support PD usb: dwc3: gadget: Fix event pending check tty: serial: samsung_tty: set dma burst_size to 1 serial: 8250: fix return error code in serial8250_request_std_resource() serial: stm32: Clear prev values before setting RTS delays serial: pl011: UPSTAT_AUTORTS requires .throttle/unthrottle can: m_can: m_can_tx_handler(): fix use after free of skb Linux 5.4.207 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: Ica75b787bd813b75db73739df2a831dbb4958668 |
||
Muchun Song
|
70433d9ea6 |
mm: sysctl: fix missing numa_stat when !CONFIG_HUGETLB_PAGE
[ Upstream commit 43b5240ca6b33108998810593248186b1e3ae34a ]
"numa_stat" should not be included in the scope of CONFIG_HUGETLB_PAGE, if
CONFIG_HUGETLB_PAGE is not configured even if CONFIG_NUMA is configured,
"numa_stat" is missed form /proc. Move it out of CONFIG_HUGETLB_PAGE to
fix it.
Fixes:
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||
|
Greg Kroah-Hartman
|
9ed911a069 |
This is the 5.4.184 stable release
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Josh Poimboeuf
|
1e47ab3df9 |
x86/speculation: Include unprivileged eBPF status in Spectre v2 mitigation reporting
commit 44a3918c8245ab10c6c9719dd12e7a8d291980d8 upstream. With unprivileged eBPF enabled, eIBRS (without retpoline) is vulnerable to Spectre v2 BHB-based attacks. When both are enabled, print a warning message and report it in the 'spectre_v2' sysfs vulnerabilities file. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Borislav Petkov <bp@suse.de> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> [fllinden@amazon.com: backported to 5.4] Signed-off-by: Frank van der Linden <fllinden@amazon.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
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|
Greg Kroah-Hartman
|
20d2140d23 |
This is the 5.4.180 stable release
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Daniel Borkmann
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c230f6ba10 |
bpf: Add kconfig knob for disabling unpriv bpf by default
commit 08389d888287c3823f80b0216766b71e17f0aba5 upstream.
Add a kconfig knob which allows for unprivileged bpf to be disabled by default.
If set, the knob sets /proc/sys/kernel/unprivileged_bpf_disabled to value of 2.
This still allows a transition of 2 -> {0,1} through an admin. Similarly,
this also still keeps 1 -> {1} behavior intact, so that once set to permanently
disabled, it cannot be undone aside from a reboot.
We've also added extra2 with max of 2 for the procfs handler, so that an admin
still has a chance to toggle between 0 <-> 2.
Either way, as an additional alternative, applications can make use of CAP_BPF
that we added a while ago.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Link: https://lore.kernel.org/bpf/74ec548079189e4e4dffaeb42b8987bb3c852eee.1620765074.git.daniel@iogearbox.net
[fllinden@amazon.com: backported to 5.4]
Signed-off-by: Frank van der Linden <fllinden@amazon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
|
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Greg Kroah-Hartman
|
25491b4ff3 |
This is the 5.4.106 stable release
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Merge 5.4.106 into android11-5.4-lts
Changes in 5.4.106
uapi: nfnetlink_cthelper.h: fix userspace compilation error
powerpc/pseries: Don't enforce MSI affinity with kdump
ethernet: alx: fix order of calls on resume
ath9k: fix transmitting to stations in dynamic SMPS mode
net: Fix gro aggregation for udp encaps with zero csum
net: check if protocol extracted by virtio_net_hdr_set_proto is correct
net: avoid infinite loop in mpls_gso_segment when mpls_hlen == 0
sh_eth: fix TRSCER mask for SH771x
can: skb: can_skb_set_owner(): fix ref counting if socket was closed before setting skb ownership
can: flexcan: assert FRZ bit in flexcan_chip_freeze()
can: flexcan: enable RX FIFO after FRZ/HALT valid
can: flexcan: invoke flexcan_chip_freeze() to enter freeze mode
can: tcan4x5x: tcan4x5x_init(): fix initialization - clear MRAM before entering Normal Mode
tcp: add sanity tests to TCP_QUEUE_SEQ
netfilter: nf_nat: undo erroneous tcp edemux lookup
netfilter: x_tables: gpf inside xt_find_revision()
selftests/bpf: No need to drop the packet when there is no geneve opt
selftests/bpf: Mask bpf_csum_diff() return value to 16 bits in test_verifier
samples, bpf: Add missing munmap in xdpsock
ibmvnic: always store valid MAC address
mt76: dma: do not report truncated frames to mac80211
powerpc/603: Fix protection of user pages mapped with PROT_NONE
mount: fix mounting of detached mounts onto targets that reside on shared mounts
cifs: return proper error code in statfs(2)
Revert "mm, slub: consider rest of partial list if acquire_slab() fails"
net: enetc: don't overwrite the RSS indirection table when initializing
net/mlx4_en: update moderation when config reset
net: stmmac: fix incorrect DMA channel intr enable setting of EQoS v4.10
nexthop: Do not flush blackhole nexthops when loopback goes down
net: sched: avoid duplicates in classes dump
net: usb: qmi_wwan: allow qmimux add/del with master up
netdevsim: init u64 stats for 32bit hardware
cipso,calipso: resolve a number of problems with the DOI refcounts
net: lapbether: Remove netif_start_queue / netif_stop_queue
net: davicom: Fix regulator not turned off on failed probe
net: davicom: Fix regulator not turned off on driver removal
net: qrtr: fix error return code of qrtr_sendmsg()
ixgbe: fail to create xfrm offload of IPsec tunnel mode SA
net: stmmac: stop each tx channel independently
net: stmmac: fix watchdog timeout during suspend/resume stress test
selftests: forwarding: Fix race condition in mirror installation
perf traceevent: Ensure read cmdlines are null terminated.
net: hns3: fix query vlan mask value error for flow director
net: hns3: fix bug when calculating the TCAM table info
s390/cio: return -EFAULT if copy_to_user() fails again
bnxt_en: reliably allocate IRQ table on reset to avoid crash
drm/compat: Clear bounce structures
drm/shmem-helper: Check for purged buffers in fault handler
drm/shmem-helper: Don't remove the offset in vm_area_struct pgoff
drm: meson_drv add shutdown function
s390/cio: return -EFAULT if copy_to_user() fails
s390/crypto: return -EFAULT if copy_to_user() fails
qxl: Fix uninitialised struct field head.surface_id
sh_eth: fix TRSCER mask for R7S9210
media: usbtv: Fix deadlock on suspend
media: v4l: vsp1: Fix uif null pointer access
media: v4l: vsp1: Fix bru null pointer access
media: rc: compile rc-cec.c into rc-core
net: hns3: fix error mask definition of flow director
net: enetc: initialize RFS/RSS memories for unused ports too
net: phy: fix save wrong speed and duplex problem if autoneg is on
i2c: rcar: faster irq code to minimize HW race condition
i2c: rcar: optimize cacheline to minimize HW race condition
udf: fix silent AED tagLocation corruption
mmc: mxs-mmc: Fix a resource leak in an error handling path in 'mxs_mmc_probe()'
mmc: mediatek: fix race condition between msdc_request_timeout and irq
Platform: OLPC: Fix probe error handling
powerpc/pci: Add ppc_md.discover_phbs()
spi: stm32: make spurious and overrun interrupts visible
powerpc: improve handling of unrecoverable system reset
powerpc/perf: Record counter overflow always if SAMPLE_IP is unset
HID: logitech-dj: add support for the new lightspeed connection iteration
powerpc/64: Fix stack trace not displaying final frame
iommu/amd: Fix performance counter initialization
sparc32: Limit memblock allocation to low memory
sparc64: Use arch_validate_flags() to validate ADI flag
Input: applespi - don't wait for responses to commands indefinitely.
PCI: xgene-msi: Fix race in installing chained irq handler
PCI: mediatek: Add missing of_node_put() to fix reference leak
kbuild: clamp SUBLEVEL to 255
PCI: Fix pci_register_io_range() memory leak
i40e: Fix memory leak in i40e_probe
s390/smp: __smp_rescan_cpus() - move cpumask away from stack
sysctl.c: fix underflow value setting risk in vm_table
scsi: libiscsi: Fix iscsi_prep_scsi_cmd_pdu() error handling
scsi: target: core: Add cmd length set before cmd complete
scsi: target: core: Prevent underflow for service actions
ALSA: usb: Add Plantronics C320-M USB ctrl msg delay quirk
ALSA: hda/hdmi: Cancel pending works before suspend
ALSA: hda/ca0132: Add Sound BlasterX AE-5 Plus support
ALSA: hda: Drop the BATCH workaround for AMD controllers
ALSA: hda: Flush pending unsolicited events before suspend
ALSA: hda: Avoid spurious unsol event handling during S3/S4
ALSA: usb-audio: Fix "cannot get freq eq" errors on Dell AE515 sound bar
ALSA: usb-audio: Apply the control quirk to Plantronics headsets
Revert 95ebabde382c ("capabilities: Don't allow writing ambiguous v3 file capabilities")
arm64: kasan: fix page_alloc tagging with DEBUG_VIRTUAL
s390/dasd: fix hanging DASD driver unbind
s390/dasd: fix hanging IO request during DASD driver unbind
software node: Fix node registration
mmc: core: Fix partition switch time for eMMC
mmc: cqhci: Fix random crash when remove mmc module/card
Goodix Fingerprint device is not a modem
USB: gadget: u_ether: Fix a configfs return code
usb: gadget: f_uac2: always increase endpoint max_packet_size by one audio slot
usb: gadget: f_uac1: stop playback on function disable
usb: dwc3: qcom: Add missing DWC3 OF node refcount decrement
usb: dwc3: qcom: Honor wakeup enabled/disabled state
USB: usblp: fix a hang in poll() if disconnected
usb: renesas_usbhs: Clear PIPECFG for re-enabling pipe with other EPNUM
usb: xhci: do not perform Soft Retry for some xHCI hosts
xhci: Improve detection of device initiated wake signal.
usb: xhci: Fix ASMedia ASM1042A and ASM3242 DMA addressing
xhci: Fix repeated xhci wake after suspend due to uncleared internal wake state
USB: serial: io_edgeport: fix memory leak in edge_startup
USB: serial: ch341: add new Product ID
USB: serial: cp210x: add ID for Acuity Brands nLight Air Adapter
USB: serial: cp210x: add some more GE USB IDs
usbip: fix stub_dev to check for stream socket
usbip: fix vhci_hcd to check for stream socket
usbip: fix vudc to check for stream socket
usbip: fix stub_dev usbip_sockfd_store() races leading to gpf
usbip: fix vhci_hcd attach_store() races leading to gpf
usbip: fix vudc usbip_sockfd_store races leading to gpf
misc/pvpanic: Export module FDT device table
misc: fastrpc: restrict user apps from sending kernel RPC messages
staging: rtl8192u: fix ->ssid overflow in r8192_wx_set_scan()
staging: rtl8188eu: prevent ->ssid overflow in rtw_wx_set_scan()
staging: rtl8712: unterminated string leads to read overflow
staging: rtl8188eu: fix potential memory corruption in rtw_check_beacon_data()
staging: ks7010: prevent buffer overflow in ks_wlan_set_scan()
staging: rtl8712: Fix possible buffer overflow in r8712_sitesurvey_cmd
staging: rtl8192e: Fix possible buffer overflow in _rtl92e_wx_set_scan
staging: comedi: addi_apci_1032: Fix endian problem for COS sample
staging: comedi: addi_apci_1500: Fix endian problem for command sample
staging: comedi: adv_pci1710: Fix endian problem for AI command data
staging: comedi: das6402: Fix endian problem for AI command data
staging: comedi: das800: Fix endian problem for AI command data
staging: comedi: dmm32at: Fix endian problem for AI command data
staging: comedi: me4000: Fix endian problem for AI command data
staging: comedi: pcl711: Fix endian problem for AI command data
staging: comedi: pcl818: Fix endian problem for AI command data
sh_eth: fix TRSCER mask for R7S72100
arm64/mm: Fix pfn_valid() for ZONE_DEVICE based memory
SUNRPC: Set memalloc_nofs_save() for sync tasks
NFS: Don't revalidate the directory permissions on a lookup failure
NFS: Don't gratuitously clear the inode cache when lookup failed
NFSv4.2: fix return value of _nfs4_get_security_label()
block: rsxx: fix error return code of rsxx_pci_probe()
configfs: fix a use-after-free in __configfs_open_file
arm64: mm: use a 48-bit ID map when possible on 52-bit VA builds
hrtimer: Update softirq_expires_next correctly after __hrtimer_get_next_event()
stop_machine: mark helpers __always_inline
include/linux/sched/mm.h: use rcu_dereference in in_vfork()
zram: fix return value on writeback_store
sched/membarrier: fix missing local execution of ipi_sync_rq_state()
powerpc/64s: Fix instruction encoding for lis in ppc_function_entry()
binfmt_misc: fix possible deadlock in bm_register_write
x86/unwind/orc: Disable KASAN checking in the ORC unwinder, part 2
KVM: arm64: Fix exclusive limit for IPA size
nvme: unlink head after removing last namespace
nvme: release namespace head reference on error
KVM: arm64: Ensure I-cache isolation between vcpus of a same VM
KVM: arm64: Reject VM creation when the default IPA size is unsupported
xen/events: reset affinity of 2-level event when tearing it down
xen/events: don't unmask an event channel when an eoi is pending
xen/events: avoid handling the same event on two cpus at the same time
Linux 5.4.106
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I14a7c69a857d6b64e7cf72003120c99610279bae
|
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Lin Feng
|
acf0e7b15f |
sysctl.c: fix underflow value setting risk in vm_table
[ Upstream commit 3b3376f222e3ab58367d9dd405cafd09d5e37b7c ] Apart from subsystem specific .proc_handler handler, all ctl_tables with extra1 and extra2 members set should use proc_dointvec_minmax instead of proc_dointvec, or the limit set in extra* never work and potentially echo underflow values(negative numbers) is likely make system unstable. Especially vfs_cache_pressure and zone_reclaim_mode, -1 is apparently not a valid value, but we can set to them. And then kernel may crash. # echo -1 > /proc/sys/vm/vfs_cache_pressure Link: https://lkml.kernel.org/r/20201223105535.2875-1-linf@wangsu.com Signed-off-by: Lin Feng <linf@wangsu.com> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org> |
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|
Greg Kroah-Hartman
|
de197c5a4f |
This is the 5.4.8 stable release
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Merge 5.4.8 into android-5.4
Changes in 5.4.8
Revert "MIPS: futex: Restore \n after sync instructions"
Revert "MIPS: futex: Emit Loongson3 sync workarounds within asm"
scsi: lpfc: Fix spinlock_irq issues in lpfc_els_flush_cmd()
scsi: lpfc: Fix discovery failures when target device connectivity bounces
scsi: mpt3sas: Fix clear pending bit in ioctl status
scsi: lpfc: Fix locking on mailbox command completion
scsi: mpt3sas: Reject NVMe Encap cmnds to unsupported HBA
gpio: mxc: Only get the second IRQ when there is more than one IRQ
scsi: lpfc: Fix list corruption in lpfc_sli_get_iocbq
Input: atmel_mxt_ts - disable IRQ across suspend
f2fs: fix to update time in lazytime mode
powerpc/papr_scm: Fix an off-by-one check in papr_scm_meta_{get, set}
tools/power/x86/intel-speed-select: Remove warning for unused result
platform/x86: peaq-wmi: switch to using polled mode of input devices
iommu: rockchip: Free domain on .domain_free
iommu/tegra-smmu: Fix page tables in > 4 GiB memory
dmaengine: xilinx_dma: Clear desc_pendingcount in xilinx_dma_reset
scsi: target: compare full CHAP_A Algorithm strings
scsi: lpfc: Fix hardlockup in lpfc_abort_handler
scsi: lpfc: Fix SLI3 hba in loop mode not discovering devices
scsi: csiostor: Don't enable IRQs too early
scsi: hisi_sas: Replace in_softirq() check in hisi_sas_task_exec()
scsi: hisi_sas: Delete the debugfs folder of hisi_sas when the probe fails
powerpc/pseries: Mark accumulate_stolen_time() as notrace
powerpc/pseries: Don't fail hash page table insert for bolted mapping
Input: st1232 - do not reset the chip too early
selftests/powerpc: Fixup clobbers for TM tests
powerpc/tools: Don't quote $objdump in scripts
dma-debug: add a schedule point in debug_dma_dump_mappings()
dma-mapping: Add vmap checks to dma_map_single()
dma-mapping: fix handling of dma-ranges for reserved memory (again)
dmaengine: fsl-qdma: Handle invalid qdma-queue0 IRQ
leds: lm3692x: Handle failure to probe the regulator
leds: an30259a: add a check for devm_regmap_init_i2c
leds: trigger: netdev: fix handling on interface rename
clocksource/drivers/asm9260: Add a check for of_clk_get
clocksource/drivers/timer-of: Use unique device name instead of timer
dtc: Use pkg-config to locate libyaml
selftests/powerpc: Skip tm-signal-sigreturn-nt if TM not available
powerpc/security/book3s64: Report L1TF status in sysfs
powerpc/book3s64/hash: Add cond_resched to avoid soft lockup warning
ext4: update direct I/O read lock pattern for IOCB_NOWAIT
ext4: iomap that extends beyond EOF should be marked dirty
jbd2: Fix statistics for the number of logged blocks
scsi: tracing: Fix handling of TRANSFER LENGTH == 0 for READ(6) and WRITE(6)
scsi: lpfc: Fix unexpected error messages during RSCN handling
scsi: lpfc: Fix duplicate unreg_rpi error in port offline flow
f2fs: fix to update dir's i_pino during cross_rename
clk: qcom: smd: Add missing pnoc clock
clk: qcom: Allow constant ratio freq tables for rcg
clk: clk-gpio: propagate rate change to parent
irqchip/irq-bcm7038-l1: Enable parent IRQ if necessary
irqchip: ingenic: Error out if IRQ domain creation failed
dma-direct: check for overflows on 32 bit DMA addresses
fs/quota: handle overflows of sysctl fs.quota.* and report as unsigned long
iommu/arm-smmu-v3: Don't display an error when IRQ lines are missing
i2c: stm32f7: fix & reorder remove & probe error handling
iomap: fix return value of iomap_dio_bio_actor on 32bit systems
Input: ili210x - handle errors from input_mt_init_slots()
scsi: lpfc: fix: Coverity: lpfc_cmpl_els_rsp(): Null pointer dereferences
scsi: zorro_esp: Limit DMA transfers to 65536 bytes (except on Fastlane)
PCI: rpaphp: Fix up pointer to first drc-info entry
scsi: ufs: fix potential bug which ends in system hang
powerpc/pseries/cmm: Implement release() function for sysfs device
PCI: rpaphp: Don't rely on firmware feature to imply drc-info support
PCI: rpaphp: Annotate and correctly byte swap DRC properties
PCI: rpaphp: Correctly match ibm, my-drc-index to drc-name when using drc-info
powerpc/security: Fix wrong message when RFI Flush is disable
powerpc/eeh: differentiate duplicate detection message
powerpc/book3s/mm: Update Oops message to print the correct translation in use
scsi: atari_scsi: sun3_scsi: Set sg_tablesize to 1 instead of SG_NONE
clk: pxa: fix one of the pxa RTC clocks
bcache: at least try to shrink 1 node in bch_mca_scan()
HID: quirks: Add quirk for HP MSU1465 PIXART OEM mouse
dt-bindings: Improve validation build error handling
HID: logitech-hidpp: Silence intermittent get_battery_capacity errors
HID: i2c-hid: fix no irq after reset on raydium 3118
ARM: 8937/1: spectre-v2: remove Brahma-B53 from hardening
libnvdimm/btt: fix variable 'rc' set but not used
HID: Improve Windows Precision Touchpad detection.
HID: rmi: Check that the RMI_STARTED bit is set before unregistering the RMI transport device
watchdog: imx7ulp: Fix reboot hang
watchdog: prevent deferral of watchdogd wakeup on RT
watchdog: Fix the race between the release of watchdog_core_data and cdev
powerpc/fixmap: Use __fix_to_virt() instead of fix_to_virt()
scsi: pm80xx: Fix for SATA device discovery
scsi: ufs: Fix error handing during hibern8 enter
scsi: scsi_debug: num_tgts must be >= 0
scsi: NCR5380: Add disconnect_mask module parameter
scsi: target: core: Release SPC-2 reservations when closing a session
scsi: ufs: Fix up auto hibern8 enablement
scsi: iscsi: Don't send data to unbound connection
scsi: target: iscsi: Wait for all commands to finish before freeing a session
f2fs: Fix deadlock in f2fs_gc() context during atomic files handling
habanalabs: skip VA block list update in reset flow
gpio/mpc8xxx: fix qoriq GPIO reading
platform/x86: intel_pmc_core: Fix the SoC naming inconsistency
platform/x86: intel_pmc_core: Add Comet Lake (CML) platform support to intel_pmc_core driver
gpio: mpc8xxx: Don't overwrite default irq_set_type callback
gpio: lynxpoint: Setup correct IRQ handlers
tools/power/x86/intel-speed-select: Ignore missing config level
Drivers: hv: vmbus: Fix crash handler reset of Hyper-V synic
apparmor: fix unsigned len comparison with less than zero
drm/amdgpu: Call find_vma under mmap_sem
scripts/kallsyms: fix definitely-lost memory leak
powerpc: Don't add -mabi= flags when building with Clang
cifs: Fix use-after-free bug in cifs_reconnect()
um: virtio: Keep reading on -EAGAIN
io_uring: io_allocate_scq_urings() should return a sane state
of: unittest: fix memory leak in attach_node_and_children
cdrom: respect device capabilities during opening action
cifs: move cifsFileInfo_put logic into a work-queue
perf diff: Use llabs() with 64-bit values
perf script: Fix brstackinsn for AUXTRACE
perf regs: Make perf_reg_name() return "unknown" instead of NULL
s390/zcrypt: handle new reply code FILTERED_BY_HYPERVISOR
mailbox: imx: Clear the right interrupts at shutdown
libfdt: define INT32_MAX and UINT32_MAX in libfdt_env.h
s390/unwind: filter out unreliable bogus %r14
s390/cpum_sf: Check for SDBT and SDB consistency
ocfs2: fix passing zero to 'PTR_ERR' warning
mailbox: imx: Fix Tx doorbell shutdown path
s390: disable preemption when switching to nodat stack with CALL_ON_STACK
selftests: vm: add fragment CONFIG_TEST_VMALLOC
mm/hugetlbfs: fix error handling when setting up mounts
kernel: sysctl: make drop_caches write-only
userfaultfd: require CAP_SYS_PTRACE for UFFD_FEATURE_EVENT_FORK
Revert "powerpc/vcpu: Assume dedicated processors as non-preempt"
sctp: fix err handling of stream initialization
md: make sure desc_nr less than MD_SB_DISKS
Revert "iwlwifi: assign directly to iwl_trans->cfg in QuZ detection"
netfilter: ebtables: compat: reject all padding in matches/watchers
6pack,mkiss: fix possible deadlock
powerpc: Fix __clear_user() with KUAP enabled
net/smc: add fallback check to connect()
netfilter: bridge: make sure to pull arp header in br_nf_forward_arp()
inetpeer: fix data-race in inet_putpeer / inet_putpeer
net: add a READ_ONCE() in skb_peek_tail()
net: icmp: fix data-race in cmp_global_allow()
hrtimer: Annotate lockless access to timer->state
tomoyo: Don't use nifty names on sockets.
uaccess: disallow > INT_MAX copy sizes
drm: limit to INT_MAX in create_blob ioctl
xfs: fix mount failure crash on invalid iclog memory access
cxgb4/cxgb4vf: fix flow control display for auto negotiation
net: dsa: bcm_sf2: Fix IP fragment location and behavior
net/mlxfw: Fix out-of-memory error in mfa2 flash burning
net: phy: aquantia: add suspend / resume ops for AQR105
net/sched: act_mirred: Pull mac prior redir to non mac_header_xmit device
net/sched: add delete_empty() to filters and use it in cls_flower
net_sched: sch_fq: properly set sk->sk_pacing_status
net: stmmac: dwmac-meson8b: Fix the RGMII TX delay on Meson8b/8m2 SoCs
ptp: fix the race between the release of ptp_clock and cdev
tcp: Fix highest_sack and highest_sack_seq
udp: fix integer overflow while computing available space in sk_rcvbuf
bnxt_en: Fix MSIX request logic for RDMA driver.
bnxt_en: Free context memory in the open path if firmware has been reset.
bnxt_en: Return error if FW returns more data than dump length
bnxt_en: Fix bp->fw_health allocation and free logic.
bnxt_en: Remove unnecessary NULL checks for fw_health
bnxt_en: Fix the logic that creates the health reporters.
bnxt_en: Add missing devlink health reporters for VFs.
mlxsw: spectrum_router: Skip loopback RIFs during MAC validation
mlxsw: spectrum: Use dedicated policer for VRRP packets
net: add bool confirm_neigh parameter for dst_ops.update_pmtu
ip6_gre: do not confirm neighbor when do pmtu update
gtp: do not confirm neighbor when do pmtu update
net/dst: add new function skb_dst_update_pmtu_no_confirm
tunnel: do not confirm neighbor when do pmtu update
vti: do not confirm neighbor when do pmtu update
sit: do not confirm neighbor when do pmtu update
net/dst: do not confirm neighbor for vxlan and geneve pmtu update
net: dsa: sja1105: Reconcile the meaning of TPID and TPID2 for E/T and P/Q/R/S
net: marvell: mvpp2: phylink requires the link interrupt
gtp: fix wrong condition in gtp_genl_dump_pdp()
gtp: avoid zero size hashtable
bonding: fix active-backup transition after link failure
tcp: do not send empty skb from tcp_write_xmit()
tcp/dccp: fix possible race __inet_lookup_established()
hv_netvsc: Fix tx_table init in rndis_set_subchannel()
gtp: fix an use-after-free in ipv4_pdp_find()
gtp: do not allow adding duplicate tid and ms_addr pdp context
bnxt: apply computed clamp value for coalece parameter
ipv6/addrconf: only check invalid header values when NETLINK_F_STRICT_CHK is set
net: phylink: fix interface passed to mac_link_up
net: ena: fix napi handler misbehavior when the napi budget is zero
vhost/vsock: accept only packets with the right dst_cid
mmc: sdhci-of-esdhc: fix up erratum A-008171 workaround
mmc: sdhci-of-esdhc: re-implement erratum A-009204 workaround
mm/hugetlbfs: fix for_each_hstate() loop in init_hugetlbfs_fs()
Linux 5.4.8
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I9962505e7207f0004499de4666df6862105e990d
|
||
Johannes Weiner
|
ead87f1165 |
kernel: sysctl: make drop_caches write-only
[ Upstream commit 204cb79ad42f015312a5bbd7012d09c93d9b46fb ]
Currently, the drop_caches proc file and sysctl read back the last value
written, suggesting this is somehow a stateful setting instead of a
one-time command. Make it write-only, like e.g. compact_memory.
While mitigating a VM problem at scale in our fleet, there was confusion
about whether writing to this file will permanently switch the kernel into
a non-caching mode. This influences the decision making in a tense
situation, where tens of people are trying to fix tens of thousands of
affected machines: Do we need a rollback strategy? What are the
performance implications of operating in a non-caching state for several
days? It also caused confusion when the kernel team said we may need to
write the file several times to make sure it's effective ("But it already
reads back 3?").
Link: http://lkml.kernel.org/r/20191031221602.9375-1-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Chris Down <chris@chrisdown.name>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: David Hildenbrand <david@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
|
||
|
Greg Kroah-Hartman
|
9be46ff3b6 |
Linux 5.4-rc4
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAl2su/AeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGvm4H/1jkheCrvB/GJS69 wd18vizAg+eFmNCzxlGVhpQTKGymNRy+g6clnoli3cNJ3pSVKcYgVyB3oXaONIhp g/ANudnBjTdjqYgJzfLij5AGecrGwDpF3YL0kuKrCB63s2I/HwQGYy/aPrYY8emy gAYdaf1DGRu5/DIIB6soTo/TnpKoAyTE+XY5MaPSug++t/Flov19tlU40IZxXW94 bjTXbm0yklrsIx+LL5mYYGGnygSTCF66JjFg1qhDCBQaS2MZ21h1ZgaOtGZTwZcc WgEiqLC5S1Iyj96zir1t78RcVQ4RzgvDbhUOgIqUFsYAO2wOicvxyFE3Hj8rPOKd uGgVPRM= =xgZa -----END PGP SIGNATURE----- Merge 5.4-rc4 into android-mainline Linux 5.4-rc4 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Change-Id: I0edccd72fad8b6443b24c8c1005b66d6b8f532ce |
||
Helge Deller
|
b67114db64 |
parisc: sysctl.c: Use CONFIG_PARISC instead of __hppa_ define
Signed-off-by: Helge Deller <deller@gmx.de> |
||
|
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 |
||
Alexandre Ghiti
|
67f3977f80 |
arm64, mm: move generic mmap layout functions to mm
arm64 handles top-down mmap layout in a way that can be easily reused by other architectures, so make it available in mm. It then introduces a new config ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT that can be set by other architectures to benefit from those functions. Note that this new config depends on MMU being enabled, if selected without MMU support, a warning will be thrown. Link: http://lkml.kernel.org/r/20190730055113.23635-5-alex@ghiti.fr Signed-off-by: Alexandre Ghiti <alex@ghiti.fr> Suggested-by: Christoph Hellwig <hch@infradead.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Kees Cook <keescook@chromium.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Luis Chamberlain <mcgrof@kernel.org> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: James Hogan <jhogan@kernel.org> Cc: Palmer Dabbelt <palmer@sifive.com> Cc: Paul Burton <paul.burton@mips.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
|
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 |
||
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>
|
||
Weitao Hou
|
65f50f2553 |
kernel: fix typos and some coding style in comments
fix lenght to length Link: http://lkml.kernel.org/r/20190521050937.4370-1-houweitaoo@gmail.com Signed-off-by: Weitao Hou <houweitaoo@gmail.com> Acked-by: Kees Cook <keescook@chromium.org> Cc: Colin Ian King <colin.king@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
Patrick Bellasi
|
e8f14172c6 |
sched/uclamp: Add system default clamps
Tasks without a user-defined clamp value are considered not clamped
and by default their utilization can have any value in the
[0..SCHED_CAPACITY_SCALE] range.
Tasks with a user-defined clamp value are allowed to request any value
in that range, and the required clamp is unconditionally enforced.
However, a "System Management Software" could be interested in limiting
the range of clamp values allowed for all tasks.
Add a privileged interface to define a system default configuration via:
/proc/sys/kernel/sched_uclamp_util_{min,max}
which works as an unconditional clamp range restriction for all tasks.
With the default configuration, the full SCHED_CAPACITY_SCALE range of
values is allowed for each clamp index. Otherwise, the task-specific
clamp is capped by the corresponding system default value.
Do that by tracking, for each task, the "effective" clamp value and
bucket the task has been refcounted in at enqueue time. This
allows to lazy aggregate "requested" and "system default" values at
enqueue time and simplifies refcounting updates at dequeue time.
The cached bucket ids are used to avoid (relatively) more expensive
integer divisions every time a task is enqueued.
An active flag is used to report when the "effective" value is valid and
thus the task is actually refcounted in the corresponding rq's bucket.
Signed-off-by: Patrick Bellasi <patrick.bellasi@arm.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Alessio Balsini <balsini@android.com>
Cc: Dietmar Eggemann <dietmar.eggemann@arm.com>
Cc: Joel Fernandes <joelaf@google.com>
Cc: Juri Lelli <juri.lelli@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Morten Rasmussen <morten.rasmussen@arm.com>
Cc: Paul Turner <pjt@google.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Quentin Perret <quentin.perret@arm.com>
Cc: Rafael J . Wysocki <rafael.j.wysocki@intel.com>
Cc: Steve Muckle <smuckle@google.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Todd Kjos <tkjos@google.com>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: Viresh Kumar <viresh.kumar@linaro.org>
Link: https://lkml.kernel.org/r/20190621084217.8167-5-patrick.bellasi@arm.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
|
||
|
Greg Kroah-Hartman
|
9a7ed8b83e |
Linux 5.2-rc6
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAl0Os1seHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGtx4H/j6i482XzcGFKTBm A7mBoQpy+kLtoUov4EtBAR62OuwI8rsahW9di37QKndPoQrczWaKBmr3De6LCdPe v3pl3O6wBbvH5ru+qBPFX9PdNbDvimEChh7LHxmMxNQq3M+AjZAZVJyfpoiFnx35 Fbge+LZaH/k8HMwZmkMr5t9Mpkip715qKg2o9Bua6dkH0AqlcpLlC8d9a+HIVw/z aAsyGSU8jRwhoAOJsE9bJf0acQ/pZSqmFp0rDKqeFTSDMsbDRKLGq/dgv4nW0RiW s7xqsjb/rdcvirRj3rv9+lcTVkOtEqwk0PVdL9WOf7g4iYrb3SOIZh8ZyViaDSeH VTS5zps= =huBY -----END PGP SIGNATURE----- Merge 5.2-rc6 into android-mainline Linux 5.2-rc6 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> |
||
Eric Dumazet
|
a8e11e5c56 |
sysctl: define proc_do_static_key()
Convert proc_dointvec_minmax_bpf_stats() into a more generic helper, since we are going to use jump labels more often. Note that sysctl_bpf_stats_enabled is removed, since it is no longer needed/used. Signed-off-by: Eric Dumazet <edumazet@google.com> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net> |
||
|
Greg Kroah-Hartman
|
b9c482880a |
Linux 5.2-rc2
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAlzrJgUeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiG1XAIAJajJpeKc9MVQipi zWiI+WgHDg8gG/HnLKzP2Zp4MUjTCz30t0rnBbdo6AyK6LnPBL53yxg9q64XN7vI p/h2ys+/DvqhIYSPWX6C++HYQT4Cb5ghxJABEIsztd3G4nfB9L2vgq9zKSNFusTD UtfUxufciZPX515TuE4IqWMwS4Ut5daH7V3jjZunhPiayTFv64e1KbpKLLzHR0NR DfFbrPcdp7VyCT/A5AKrqfqeB6O9dm/Fe4CsdsaKuzASCXJ6GUc/A7iZDndv/KA4 f5Xh7SGlQ2TfT1ud/aMfdw3AcMjqB8zgMJenovJ7UuHDfULBWNeAmMh/cTDwY9eY Xgyvfm0= =S8p9 -----END PGP SIGNATURE----- Merge 5.2-rc2 into android-mainline Linux 5.2-rc2 Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> |
||
Thomas Gleixner
|
457c899653 |
treewide: Add SPDX license identifier for missed files
Add SPDX license identifiers to all files which: - Have no license information of any form - Have EXPORT_.*_SYMBOL_GPL inside which was used in the initial scan/conversion to ignore the file These files fall under the project license, GPL v2 only. The resulting SPDX license identifier is: GPL-2.0-only Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
||
|
Greg Kroah-Hartman
|
1226c72a32 |
Linux 5.2-rc1
-----BEGIN PGP SIGNATURE----- iQFSBAABCAA8FiEEq68RxlopcLEwq+PEeb4+QwBBGIYFAlzh3PgeHHRvcnZhbGRz QGxpbnV4LWZvdW5kYXRpb24ub3JnAAoJEHm+PkMAQRiGnhoH/jkl4X66KuOXvGXa 9pgFzyEa3Mhqs0j+AaJYmRyoRty1CbAfMLEWgr0JbZy56zm0PhtXOxcu56/tfdtw f5j8OJLDvld10imHXxUrom9zc546Ff90VTOvWmsYznszTz0rV5HLmKgVIIc7ZN8W 6hshDOy/rviUcPAVrLKdZffzgQZlASNS7To7IBE9okT4QHEtER7dgzM/Z0VAg9R1 guCPaN8tje4vq2Lv7+J5T9LOF1RObCbKXNADwXY1rMRK5ao3xS93eDnJ8Vn08utI UECIVfnYsA6pGl6v1ErCl9izx9MoTU3Crle7BRzVbrw7furvB2lJ1R4RGwqRbvcB HovhmHI= =TMir -----END PGP SIGNATURE----- Merge 5.2-rc1 into android-mainline Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> |
||
Eric Sandeen
|
3116ad38f5 |
kernel/sysctl.c: fix proc_do_large_bitmap for large input buffers
Today, proc_do_large_bitmap() truncates a large write input buffer to PAGE_SIZE - 1, which may result in misparsed numbers at the (truncated) end of the buffer. Further, it fails to notify the caller that the buffer was truncated, so it doesn't get called iteratively to finish the entire input buffer. Tell the caller if there's more work to do by adding the skipped amount back to left/*lenp before returning. To fix the misparsing, reset the position if we have completely consumed a truncated buffer (or if just one char is left, which may be a "-" in a range), and ask the caller to come back for more. Link: http://lkml.kernel.org/r/20190320222831.8243-7-mcgrof@kernel.org Signed-off-by: Eric Sandeen <sandeen@redhat.com> Signed-off-by: Luis Chamberlain <mcgrof@kernel.org> Acked-by: Kees Cook <keescook@chromium.org> Cc: Eric Sandeen <sandeen@sandeen.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
||
Christian Brauner
|
e260ad01f0 |
sysctl: return -EINVAL if val violates minmax
Currently when userspace gives us a values that overflow e.g. file-max and other callers of __do_proc_doulongvec_minmax() we simply ignore the new value and leave the current value untouched. This can be problematic as it gives the illusion that the limit has indeed be bumped when in fact it failed. This commit makes sure to return EINVAL when an overflow is detected. Please note that this is a userspace facing change. Link: http://lkml.kernel.org/r/20190210203943.8227-4-christian@brauner.io Signed-off-by: Christian Brauner <christian@brauner.io> Acked-by: Luis Chamberlain <mcgrof@kernel.org> Cc: Kees Cook <keescook@chromium.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Joe Lawrence <joe.lawrence@redhat.com> Cc: Waiman Long <longman@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Andy Shevchenko
|
475dae3854 |
kernel/sysctl.c: switch to bitmap_zalloc()
Switch to bitmap_zalloc() to show clearly what we are allocating. Besides that it returns pointer of bitmap type instead of opaque void *. Link: http://lkml.kernel.org/r/20190304094037.57756-1-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Kees Cook <keescook@chromium.org> Reviewed-by: Andrew Morton <akpm@linux-foundation.org> Cc: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Peter Xu
|
cefdca0a86 |
userfaultfd/sysctl: add vm.unprivileged_userfaultfd
Userfaultfd can be misued to make it easier to exploit existing use-after-free (and similar) bugs that might otherwise only make a short window or race condition available. By using userfaultfd to stall a kernel thread, a malicious program can keep some state that it wrote, stable for an extended period, which it can then access using an existing exploit. While it doesn't cause the exploit itself, and while it's not the only thing that can stall a kernel thread when accessing a memory location, it's one of the few that never needs privilege. We can add a flag, allowing userfaultfd to be restricted, so that in general it won't be useable by arbitrary user programs, but in environments that require userfaultfd it can be turned back on. Add a global sysctl knob "vm.unprivileged_userfaultfd" to control whether userfaultfd is allowed by unprivileged users. When this is set to zero, only privileged users (root user, or users with the CAP_SYS_PTRACE capability) will be able to use the userfaultfd syscalls. Andrea said: : The only difference between the bpf sysctl and the userfaultfd sysctl : this way is that the bpf sysctl adds the CAP_SYS_ADMIN capability : requirement, while userfaultfd adds the CAP_SYS_PTRACE requirement, : because the userfaultfd monitor is more likely to need CAP_SYS_PTRACE : already if it's doing other kind of tracking on processes runtime, in : addition of userfaultfd. In other words both syscalls works only for : root, when the two sysctl are opt-in set to 1. [dgilbert@redhat.com: changelog additions] [akpm@linux-foundation.org: documentation tweak, per Mike] Link: http://lkml.kernel.org/r/20190319030722.12441-2-peterx@redhat.com Signed-off-by: Peter Xu <peterx@redhat.com> Suggested-by: Andrea Arcangeli <aarcange@redhat.com> Suggested-by: Mike Rapoport <rppt@linux.ibm.com> Reviewed-by: Mike Rapoport <rppt@linux.ibm.com> Reviewed-by: Andrea Arcangeli <aarcange@redhat.com> Cc: Paolo Bonzini <pbonzini@redhat.com> Cc: Hugh Dickins <hughd@google.com> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Maxime Coquelin <maxime.coquelin@redhat.com> Cc: Maya Gokhale <gokhale2@llnl.gov> Cc: Jerome Glisse <jglisse@redhat.com> Cc: Pavel Emelyanov <xemul@virtuozzo.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Martin Cracauer <cracauer@cons.org> Cc: Denis Plotnikov <dplotnikov@virtuozzo.com> Cc: Marty McFadden <mcfadden8@llnl.gov> Cc: Mike Kravetz <mike.kravetz@oracle.com> Cc: Kees Cook <keescook@chromium.org> Cc: Mel Gorman <mgorman@suse.de> Cc: "Kirill A . Shutemov" <kirill@shutemov.name> Cc: "Dr . David Alan Gilbert" <dgilbert@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Todd Kjos
|
0f2cb7cf80 |
Merge branch 'linux-mainline' into android-mainline-tmp
Change-Id: I4380c68c3474026a42ffa9f95c525f9a563ba7a3 |
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Rik van Riel
|
92501cb670 |
ANDROID: add extra free kbytes tunable
Add a userspace visible knob to tell the VM to keep an extra amount of memory free, by increasing the gap between each zone's min and low watermarks. This is useful for realtime applications that call system calls and have a bound on the number of allocations that happen in any short time period. In this application, extra_free_kbytes would be left at an amount equal to or larger than than the maximum number of allocations that happen in any burst. It may also be useful to reduce the memory use of virtual machines (temporarily?), in a way that does not cause memory fragmentation like ballooning does. [ccross] Revived for use on old kernels where no other solution exists. The tunable will be removed on kernels that do better at avoiding direct reclaim. [surenb] Will be reverted as soon as Android framework is reworked to use upstream-supported watermark_scale_factor instead of extra_free_kbytes. Bug: 86445363 Bug: 109664768 Bug: 120445732 Change-Id: I765a42be8e964bfd3e2886d1ca85a29d60c3bb3e Signed-off-by: Rik van Riel <riel@redhat.com> Signed-off-by: Colin Cross <ccross@android.com> Signed-off-by: Suren Baghdasaryan <surenb@google.com> |
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Stephen Suryaputra
|
0bc1998544 |
ipv6: Add rate limit mask for ICMPv6 messages
To make ICMPv6 closer to ICMPv4, add ratemask parameter. Since the ICMP
message types use larger numeric values, a simple bitmask doesn't fit.
I use large bitmap. The input and output are the in form of list of
ranges. Set the default to rate limit all error messages but Packet Too
Big. For Packet Too Big, use ratemask instead of hard-coded.
There are functions where icmpv6_xrlim_allow() and icmpv6_global_allow()
aren't called. This patch only adds them to icmpv6_echo_reply().
Rate limiting error messages is mandated by RFC 4443 but RFC 4890 says
that it is also acceptable to rate limit informational messages. Thus,
I removed the current hard-coded behavior of icmpv6_mask_allow() that
doesn't rate limit informational messages.
v2: Add dummy function proc_do_large_bitmap() if CONFIG_PROC_SYSCTL
isn't defined, expand the description in ip-sysctl.txt and remove
unnecessary conditional before kfree().
v3: Inline the bitmap instead of dynamically allocated. Still is a
pointer to it is needed because of the way proc_do_large_bitmap work.
Signed-off-by: Stephen Suryaputra <ssuryaextr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
|
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Will Deacon
|
9002b21465 |
kernel/sysctl.c: fix out-of-bounds access when setting file-max
Commit |
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Zev Weiss
|
2bc4fc60fb |
kernel/sysctl.c: define minmax conv functions in terms of non-minmax versions
do_proc_do[u]intvec_minmax_conv() had included open-coded versions of do_proc_do[u]intvec_conv(); the duplication led to buggy inconsistencies (missing range checks). To reduce the likelihood of such problems in the future, we can instead refactor both to be defined in terms of their non-bounded counterparts (plus the added check). Link: http://lkml.kernel.org/r/20190207165138.5oud57vq4ozwb4kh@hatter.bewilderbeest.net Signed-off-by: Zev Weiss <zev@bewilderbeest.net> Cc: Brendan Higgins <brendanhiggins@google.com> Cc: Iurii Zaikin <yzaikin@google.com> Cc: Kees Cook <keescook@chromium.org> Cc: Luis Chamberlain <mcgrof@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Zev Weiss
|
8cf7630b29 |
kernel/sysctl.c: add missing range check in do_proc_dointvec_minmax_conv
This bug has apparently existed since the introduction of this function in the pre-git era (4500e91754d3 in Thomas Gleixner's history.git, "[NET]: Add proc_dointvec_userhz_jiffies, use it for proper handling of neighbour sysctls."). As a minimal fix we can simply duplicate the corresponding check in do_proc_dointvec_conv(). Link: http://lkml.kernel.org/r/20190207123426.9202-3-zev@bewilderbeest.net Signed-off-by: Zev Weiss <zev@bewilderbeest.net> Cc: Brendan Higgins <brendanhiggins@google.com> Cc: Iurii Zaikin <yzaikin@google.com> Cc: Kees Cook <keescook@chromium.org> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: <stable@vger.kernel.org> [2.6.2+] Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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|
Linus Torvalds
|
8f49a658b4 |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Pull networking fixes from David Miller:
"First batch of fixes in the new merge window:
1) Double dst_cache free in act_tunnel_key, from Wenxu.
2) Avoid NULL deref in IN_DEV_MFORWARD() by failing early in the
ip_route_input_rcu() path, from Paolo Abeni.
3) Fix appletalk compile regression, from Arnd Bergmann.
4) If SLAB objects reach the TCP sendpage method we are in serious
trouble, so put a debugging check there. From Vasily Averin.
5) Memory leak in hsr layer, from Mao Wenan.
6) Only test GSO type on GSO packets, from Willem de Bruijn.
7) Fix crash in xsk_diag_put_umem(), from Eric Dumazet.
8) Fix VNIC mailbox length in nfp, from Dirk van der Merwe.
9) Fix race in ipv4 route exception handling, from Xin Long.
10) Missing DMA memory barrier in hns3 driver, from Jian Shen.
11) Use after free in __tcf_chain_put(), from Vlad Buslov.
12) Handle inet_csk_reqsk_queue_add() failures, from Guillaume Nault.
13) Return value correction when ip_mc_may_pull() fails, from Eric
Dumazet.
14) Use after free in x25_device_event(), also from Eric"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (72 commits)
gro_cells: make sure device is up in gro_cells_receive()
vxlan: test dev->flags & IFF_UP before calling gro_cells_receive()
net/x25: fix use-after-free in x25_device_event()
isdn: mISDNinfineon: fix potential NULL pointer dereference
net: hns3: fix to stop multiple HNS reset due to the AER changes
ip: fix ip_mc_may_pull() return value
net: keep refcount warning in reqsk_free()
net: stmmac: Avoid one more sometimes uninitialized Clang warning
net: dsa: mv88e6xxx: Set correct interface mode for CPU/DSA ports
rxrpc: Fix client call queueing, waiting for channel
tcp: handle inet_csk_reqsk_queue_add() failures
net: ethernet: sun: Zero initialize class in default case in niu_add_ethtool_tcam_entry
8139too : Add support for U.S. Robotics USR997901A 10/100 Cardbus NIC
fou, fou6: avoid uninit-value in gue_err() and gue6_err()
net: sched: fix potential use-after-free in __tcf_chain_put()
vhost: silence an unused-variable warning
vsock/virtio: fix kernel panic from virtio_transport_reset_no_sock
connector: fix unsafe usage of ->real_parent
vxlan: do not need BH again in vxlan_cleanup()
net: hns3: add dma_rmb() for rx description
...
|
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Christian Brauner
|
32a5ad9c22 |
sysctl: handle overflow for file-max
Currently, when writing echo 18446744073709551616 > /proc/sys/fs/file-max /proc/sys/fs/file-max will overflow and be set to 0. That quickly crashes the system. This commit sets the max and min value for file-max. The max value is set to long int. Any higher value cannot currently be used as the percpu counters are long ints and not unsigned integers. Note that the file-max value is ultimately parsed via __do_proc_doulongvec_minmax(). This function does not report error when min or max are exceeded. Which means if a value largen that long int is written userspace will not receive an error instead the old value will be kept. There is an argument to be made that this should be changed and __do_proc_doulongvec_minmax() should return an error when a dedicated min or max value are exceeded. However this has the potential to break userspace so let's defer this to an RFC patch. Link: http://lkml.kernel.org/r/20190107222700.15954-3-christian@brauner.io Signed-off-by: Christian Brauner <christian@brauner.io> Acked-by: Kees Cook <keescook@chromium.org> Cc: Alexey Dobriyan <adobriyan@gmail.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Joe Lawrence <joe.lawrence@redhat.com> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Waiman Long <longman@redhat.com> [christian@brauner.io: v4] Link: http://lkml.kernel.org/r/20190210203943.8227-3-christian@brauner.io Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Christian Brauner
|
7f2923c4f7 |
sysctl: handle overflow in proc_get_long
proc_get_long() is a funny function. It uses simple_strtoul() and for a good reason. proc_get_long() wants to always succeed the parse and return the maybe incorrect value and the trailing characters to check against a pre-defined list of acceptable trailing values. However, simple_strtoul() explicitly ignores overflows which can cause funny things like the following to happen: echo 18446744073709551616 > /proc/sys/fs/file-max cat /proc/sys/fs/file-max 0 (Which will cause your system to silently die behind your back.) On the other hand kstrtoul() does do overflow detection but does not return the trailing characters, and also fails the parse when anything other than '\n' is a trailing character whereas proc_get_long() wants to be more lenient. Now, before adding another kstrtoul() function let's simply add a static parse strtoul_lenient() which: - fails on overflow with -ERANGE - returns the trailing characters to the caller The reason why we should fail on ERANGE is that we already do a partial fail on overflow right now. Namely, when the TMPBUFLEN is exceeded. So we already reject values such as 184467440737095516160 (21 chars) but accept values such as 18446744073709551616 (20 chars) but both are overflows. So we should just always reject 64bit overflows and not special-case this based on the number of chars. Link: http://lkml.kernel.org/r/20190107222700.15954-2-christian@brauner.io Signed-off-by: Christian Brauner <christian@brauner.io> Acked-by: Kees Cook <keescook@chromium.org> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Luis Chamberlain <mcgrof@kernel.org> Cc: Joe Lawrence <joe.lawrence@redhat.com> Cc: Waiman Long <longman@redhat.com> Cc: Dominik Brodowski <linux@dominikbrodowski.net> Cc: Al Viro <viro@zeniv.linux.org.uk> Cc: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Arnd Bergmann
|
78c3aff834 |
bpf: fix sysctl.c warning
When CONFIG_BPF_SYSCALL or CONFIG_SYSCTL is disabled, we get
a warning about an unused function:
kernel/sysctl.c:3331:12: error: 'proc_dointvec_minmax_bpf_stats' defined but not used [-Werror=unused-function]
static int proc_dointvec_minmax_bpf_stats(struct ctl_table *table, int write,
The CONFIG_BPF_SYSCALL check was already handled, but the SYSCTL check
is needed on top.
Fixes:
|
||
|
Linus Torvalds
|
8dcd175bc3 |
Merge branch 'akpm' (patches from Andrew)
Merge misc updates from Andrew Morton: - a few misc things - ocfs2 updates - most of MM * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (159 commits) tools/testing/selftests/proc/proc-self-syscall.c: remove duplicate include proc: more robust bulk read test proc: test /proc/*/maps, smaps, smaps_rollup, statm proc: use seq_puts() everywhere proc: read kernel cpu stat pointer once proc: remove unused argument in proc_pid_lookup() fs/proc/thread_self.c: code cleanup for proc_setup_thread_self() fs/proc/self.c: code cleanup for proc_setup_self() proc: return exit code 4 for skipped tests mm,mremap: bail out earlier in mremap_to under map pressure mm/sparse: fix a bad comparison mm/memory.c: do_fault: avoid usage of stale vm_area_struct writeback: fix inode cgroup switching comment mm/huge_memory.c: fix "orig_pud" set but not used mm/hotplug: fix an imbalance with DEBUG_PAGEALLOC mm/memcontrol.c: fix bad line in comment mm/cma.c: cma_declare_contiguous: correct err handling mm/page_ext.c: fix an imbalance with kmemleak mm/compaction: pass pgdat to too_many_isolated() instead of zone mm: remove zone_lru_lock() function, access ->lru_lock directly ... |
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|
Linus Torvalds
|
45802da05e |
Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"The main changes in this cycle were:
- refcount conversions
- Solve the rq->leaf_cfs_rq_list can of worms for real.
- improve power-aware scheduling
- add sysctl knob for Energy Aware Scheduling
- documentation updates
- misc other changes"
* 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (34 commits)
kthread: Do not use TIMER_IRQSAFE
kthread: Convert worker lock to raw spinlock
sched/fair: Use non-atomic cpumask_{set,clear}_cpu()
sched/fair: Remove unused 'sd' parameter from select_idle_smt()
sched/wait: Use freezable_schedule() when possible
sched/fair: Prune, fix and simplify the nohz_balancer_kick() comment block
sched/fair: Explain LLC nohz kick condition
sched/fair: Simplify nohz_balancer_kick()
sched/topology: Fix percpu data types in struct sd_data & struct s_data
sched/fair: Simplify post_init_entity_util_avg() by calling it with a task_struct pointer argument
sched/fair: Fix O(nr_cgroups) in the load balancing path
sched/fair: Optimize update_blocked_averages()
sched/fair: Fix insertion in rq->leaf_cfs_rq_list
sched/fair: Add tmp_alone_branch assertion
sched/core: Use READ_ONCE()/WRITE_ONCE() in move_queued_task()/task_rq_lock()
sched/debug: Initialize sd_sysctl_cpus if !CONFIG_CPUMASK_OFFSTACK
sched/pelt: Skip updating util_est when utilization is higher than CPU's capacity
sched/fair: Update scale invariance of PELT
sched/fair: Move the rq_of() helper function
sched/core: Convert task_struct.stack_refcount to refcount_t
...
|
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Matthew Wilcox
|
6b7e5cad65 |
mm: remove sysctl_extfrag_handler()
sysctl_extfrag_handler() neglects to propagate the return value from proc_dointvec_minmax() to its caller. It's a wrapper that doesn't need to exist, so just use proc_dointvec_minmax() directly. Link: http://lkml.kernel.org/r/20190104032557.3056-1-willy@infradead.org Signed-off-by: Matthew Wilcox <willy@infradead.org> Reported-by: Aditya Pakki <pakki001@umn.edu> Acked-by: Mel Gorman <mgorman@techsingularity.net> Acked-by: Randy Dunlap <rdunlap@infradead.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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Alexei Starovoitov
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3fcc5530bc |
bpf: fix build without bpf_syscall
wrap bpf_stats_enabled sysctl with #ifdef
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Fixes:
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Alexei Starovoitov
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492ecee892 |
bpf: enable program stats
JITed BPF programs are indistinguishable from kernel functions, but unlike kernel code BPF code can be changed often. Typical approach of "perf record" + "perf report" profiling and tuning of kernel code works just as well for BPF programs, but kernel code doesn't need to be monitored whereas BPF programs do. Users load and run large amount of BPF programs. These BPF stats allow tools monitor the usage of BPF on the server. The monitoring tools will turn sysctl kernel.bpf_stats_enabled on and off for few seconds to sample average cost of the programs. Aggregated data over hours and days will provide an insight into cost of BPF and alarms can trigger in case given program suddenly gets more expensive. The cost of two sched_clock() per program invocation adds ~20 nsec. Fast BPF progs (like selftests/bpf/progs/test_pkt_access.c) will slow down from ~10 nsec to ~30 nsec. static_key minimizes the cost of the stats collection. There is no measurable difference before/after this patch with kernel.bpf_stats_enabled=0 Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> |
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Quentin Perret
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8d5d0cfb63 |
sched/topology: Introduce a sysctl for Energy Aware Scheduling
In its current state, Energy Aware Scheduling (EAS) starts automatically on asymmetric platforms having an Energy Model (EM). However, there are users who want to have an EM (for thermal management for example), but don't want EAS with it. In order to let users disable EAS explicitly, introduce a new sysctl called 'sched_energy_aware'. It is enabled by default so that EAS can start automatically on platforms where it makes sense. Flipping it to 0 rebuilds the scheduling domains and disables EAS. Signed-off-by: Quentin Perret <quentin.perret@arm.com> 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: adharmap@codeaurora.org Cc: chris.redpath@arm.com Cc: currojerez@riseup.net Cc: dietmar.eggemann@arm.com Cc: edubezval@gmail.com Cc: gregkh@linuxfoundation.org Cc: javi.merino@kernel.org Cc: joel@joelfernandes.org Cc: juri.lelli@redhat.com Cc: morten.rasmussen@arm.com Cc: patrick.bellasi@arm.com Cc: pkondeti@codeaurora.org Cc: rjw@rjwysocki.net Cc: skannan@codeaurora.org Cc: smuckle@google.com Cc: srinivas.pandruvada@linux.intel.com Cc: thara.gopinath@linaro.org Cc: tkjos@google.com Cc: valentin.schneider@arm.com Cc: vincent.guittot@linaro.org Cc: viresh.kumar@linaro.org Link: https://lkml.kernel.org/r/20181203095628.11858-11-quentin.perret@arm.com Signed-off-by: Ingo Molnar <mingo@kernel.org> |
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Feng Tang
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81c9d43f94 |
kernel/sysctl: add panic_print into sysctl
So that we can also runtime chose to print out the needed system info for panic, other than setting the kernel cmdline. Link: http://lkml.kernel.org/r/1543398842-19295-3-git-send-email-feng.tang@intel.com Signed-off-by: Feng Tang <feng.tang@intel.com> Suggested-by: Steven Rostedt <rostedt@goodmis.org> Acked-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: John Stultz <john.stultz@linaro.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Kees Cook <keescook@chromium.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |