Here's one more fix to keep a reference to the driver's module as long
as there are users of the PWM exposed by the driver.
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Merge tag 'pwm/for-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm
Pull pwm fix from Thierry Reding:
"One more fix to keep a reference to the driver's module as long as
there are users of the PWM exposed by the driver"
* tag 'pwm/for-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/thierry.reding/linux-pwm:
pwm: bcm-iproc: Prevent unloading the driver module while in use
cgroup writeback tries to refresh the associated wb immediately if the
current wb is dead. This is to avoid keeping issuing IOs on the stale
wb after memcg - blkcg association has changed (ie. when blkcg got
disabled / enabled higher up in the hierarchy).
Unfortunately, the logic gets triggered spuriously on inodes which are
associated with dead cgroups. When the logic is triggered on dead
cgroups, the attempt fails only after doing quite a bit of work
allocating and initializing a new wb.
While c3aab9a0bd ("mm/filemap.c: don't initiate writeback if mapping
has no dirty pages") alleviated the issue significantly as it now only
triggers when the inode has dirty pages. However, the condition can
still be triggered before the inode is switched to a different cgroup
and the logic simply doesn't make sense.
Skip the immediate switching if the associated memcg is dying.
This is a simplified version of the following two patches:
* https://lore.kernel.org/linux-mm/20190513183053.GA73423@dennisz-mbp/
* http://lkml.kernel.org/r/156355839560.2063.5265687291430814589.stgit@buzz
Cc: Konstantin Khlebnikov <khlebnikov@yandex-team.ru>
Fixes: e8a7abf5a5 ("writeback: disassociate inodes from dying bdi_writebacks")
Acked-by: Dennis Zhou <dennis@kernel.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
further restrict copy_file_range() to avoid potential data corruption
from Luis and a fix for !CONFIG_CEPH_FSCACHE kernels. Everything but
the fscache fix is marked for stable.
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Merge tag 'ceph-for-5.4-rc7' of git://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov:
"Some late-breaking dentry handling fixes from Al and Jeff, a patch to
further restrict copy_file_range() to avoid potential data corruption
from Luis and a fix for !CONFIG_CEPH_FSCACHE kernels.
Everything but the fscache fix is marked for stable"
* tag 'ceph-for-5.4-rc7' of git://github.com/ceph/ceph-client:
ceph: return -EINVAL if given fsc mount option on kernel w/o support
ceph: don't allow copy_file_range when stripe_count != 1
ceph: don't try to handle hashed dentries in non-O_CREAT atomic_open
ceph: add missing check in d_revalidate snapdir handling
ceph: fix RCU case handling in ceph_d_revalidate()
ceph: fix use-after-free in __ceph_remove_cap()
The "42f5cda5eaf4" commit rightly set SOCK_DONE on peer shutdown,
but there is an issue if we receive the SHUTDOWN(RDWR) while the
virtio_transport_close_timeout() is scheduled.
In this case, when the timeout fires, the SOCK_DONE is already
set and the virtio_transport_close_timeout() will not call
virtio_transport_reset() and virtio_transport_do_close().
This causes that both sockets remain open and will never be released,
preventing the unloading of [virtio|vhost]_transport modules.
This patch fixes this issue, calling virtio_transport_reset() and
virtio_transport_do_close() when we receive the SHUTDOWN(RDWR)
and there is nothing left to read.
Fixes: 42f5cda5ea ("vsock/virtio: set SOCK_DONE on peer shutdown")
Cc: Stephen Barber <smbarber@chromium.org>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
* we hit a failure path bug related to
ieee80211_txq_setup_flows()
* also use kvmalloc() to make that less likely
* fix a timing value shortly after boot (during
INITIAL_JIFFIES)
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Merge tag 'mac80211-for-net-2019-11-08' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
Johannes Berg says:
====================
Three small fixes:
* we hit a failure path bug related to
ieee80211_txq_setup_flows()
* also use kvmalloc() to make that less likely
* fix a timing value shortly after boot (during
INITIAL_JIFFIES)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
From gen2 PN is totally offloaded to hardware (also the space for the
IV isn't part of the skb). As you can see in mvm/mac80211.c:3545, the
MAC for cipher types CCMP/GCMP doesn't set
IEEE80211_KEY_FLAG_PUT_IV_SPACE for gen2 NICs.
This causes all the AMSDU data to be corrupted with cipher enabled.
Signed-off-by: Mordechay Goodstein <mordechay.goodstein@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Octeon's input ring-buffer entry has 14 bits-wide size field, so to account
for second possible VLAN header max_mtu must be further reduced.
Fixes: 109cc16526 ("ethernet/cavium: use core min/max MTU checking")
Signed-off-by: Alexander Sverdlin <alexander.sverdlin@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
- Fix `make nsdeps` for modules composed of multiple source files. Since
$mod_source_files is not in quotes in the call to generate_deps_for_ns(), not
all the source files for a module were being passed to spatch.
Signed-off-by: Jessica Yu <jeyu@kernel.org>
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Merge tag 'modules-for-v5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux
Pull modules fix from Jessica Yu:
"Fix `make nsdeps` for modules composed of multiple source files.
Since $mod_source_files was not in quotes in the call to
generate_deps_for_ns(), not all the source files for a module were
being passed to spatch"
* tag 'modules-for-v5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/jeyu/linux:
scripts/nsdeps: make sure to pass all module source files to spatch
- Fix pte_same() to avoid getting stuck on write fault
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fix from Will Deacon:
"Fix pte_same() to avoid getting stuck on write fault.
This single arm64 fix is a revert of 747a70e60b ("arm64: Fix
copy-on-write referencing in HugeTLB"), not because that patch was
wrong, but because it was broken by aa57157be6 ("arm64: Ensure
VM_WRITE|VM_SHARED ptes are clean by default") which we merged in
-rc6.
We spotted the issue in Android (AOSP), where one of the JIT threads
gets stuck on a write fault during boot because the faulting pte is
marked as PTE_DIRTY | PTE_WRITE | PTE_RDONLY and the fault handler
decides that there's nothing to do thanks to pte_same() masking out
PTE_RDONLY.
Thanks to John Stultz for reporting this and testing this so quickly,
and to Steve Capper for confirming that the HugeTLB tests continue to
pass"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: Do not mask out PTE_RDONLY in pte_same()
The owner member of struct pwm_ops must be set to THIS_MODULE to
increase the reference count of the module such that the module cannot
be removed while its code is in use.
Fixes: daa5abc41c ("pwm: Add support for Broadcom iProc PWM controller")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
These patches all fix various bugs, some of which people have tripped
over and some of which have been caught by automatic tools.
Matthew Wilcox (Oracle) (5):
XArray: Fix xas_next() with a single entry at 0
idr: Fix idr_get_next_ul race with idr_remove
radix tree: Remove radix_tree_iter_find
idr: Fix integer overflow in idr_for_each_entry
idr: Fix idr_alloc_u32 on 32-bit systems
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Merge tag 'xarray-5.4' of git://git.infradead.org/users/willy/linux-dax
Pull XArray fixes from Matthew Wilcox:
"These all fix various bugs, some of which people have tripped over and
some of which have been caught by automatic tools"
* tag 'xarray-5.4' of git://git.infradead.org/users/willy/linux-dax:
idr: Fix idr_alloc_u32 on 32-bit systems
idr: Fix integer overflow in idr_for_each_entry
radix tree: Remove radix_tree_iter_find
idr: Fix idr_get_next_ul race with idr_remove
XArray: Fix xas_next() with a single entry at 0
It became a bit largish, but all small and good for 5.4.
- A regression fix of ALSA timer code bug that sneaked in by a
recent cleanup; never trust innocent-looking guys...
- Fix for compress API max size check signedness
- Fixes in HD-audio: CA0132 work stall, Intel Tigerlake HDMI
- A few fixes for SOF: memory leak, sanity-check and build fixes
- A collection of device-specific fixes: firewire, rockchip, ASoC
HDMI, rsnd, ASoC HDA, stm32, TI, kirkwood, msm, max98373
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Merge tag 'sound-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
"It became a bit largish, but all small and good for 5.4:
- A regression fix of ALSA timer code bug that sneaked in by a recent
cleanup; never trust innocent-looking guys...
- Fix for compress API max size check signedness
- Fixes in HD-audio: CA0132 work stall, Intel Tigerlake HDMI
- A few fixes for SOF: memory leak, sanity-check and build fixes
- A collection of device-specific fixes: firewire, rockchip, ASoC
HDMI, rsnd, ASoC HDA, stm32, TI, kirkwood, msm, max98373"
* tag 'sound-5.4-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
ALSA: timer: Fix incorrectly assigned timer instance
ASoC: SOF: topology: Fix bytes control size checks
ALSA: hda: hdmi - add Tigerlake support
ASoC: max98373: replace gpio_request with devm_gpio_request
ASoC: stm32: sai: add restriction on mmap support
ALSA: hda/ca0132 - Fix possible workqueue stall
ASoC: hdac_hda: fix race in device removal
ALSA: bebob: fix to detect configured source of sampling clock for Focusrite Saffire Pro i/o series
ASoC: rockchip: rockchip_max98090: Enable SHDN to fix headset detection
ASoC: ti: sdma-pcm: Add back the flags parameter for non standard dma names
ASoC: SOF: ipc: Fix memory leak in sof_set_get_large_ctrl_data
ASoC: SOF: Fix memory leak in sof_dfsentry_write
ASoC: SOF: Intel: hda-stream: fix the CONFIG_ prefix missing
ASoC: kirkwood: fix device remove ordering
ASoC: rsnd: dma: fix SSI9 4/5/6/7 busif dma address
ASoC: hdmi-codec: drop mutex locking again
ASoC: kirkwood: fix external clock probe defer
ASoC: compress: fix unsigned integer overflow check
ASoC: msm8916-wcd-analog: Fix RX1 selection in RDAC2 MUX
core:
- add missing documentation for GEM shmem madvise helpers
- Fix for a state dereference in atomic self-refresh helpers
fbdev:
- One compilation fix for c2p fbdev helpers
amdgpu:
- Fix navi14 display issue root cause and revert workaround
- GPU reset scheduler interaction fix
- Fix fan boost on multi-GPU
- Gfx10 and sdma5 fixes for navi
- GFXOFF fix for renoir
- Add navi14 PCI ID
- GPUVM fix for arcturus
radeon:
- Port an SI power fix from amdgpu
i915:
- Fix HPD poll to avoid kworker consuming a lot of cpu cycles.
- Do not use TBT type for non Type-C ports.
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Merge tag 'drm-fixes-2019-11-08' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Weekly fixes for drm: amdgpu has a few but they are pretty scattered
fixes, the fbdev one is a build regression fix that we didn't want to
risk leaving out, otherwise a couple of i915, one radeon and a core
atomic fix.
core:
- add missing documentation for GEM shmem madvise helpers
- Fix for a state dereference in atomic self-refresh helpers
fbdev:
- One compilation fix for c2p fbdev helpers
amdgpu:
- Fix navi14 display issue root cause and revert workaround
- GPU reset scheduler interaction fix
- Fix fan boost on multi-GPU
- Gfx10 and sdma5 fixes for navi
- GFXOFF fix for renoir
- Add navi14 PCI ID
- GPUVM fix for arcturus
radeon:
- Port an SI power fix from amdgpu
i915:
- Fix HPD poll to avoid kworker consuming a lot of cpu cycles.
- Do not use TBT type for non Type-C ports"
* tag 'drm-fixes-2019-11-08' of git://anongit.freedesktop.org/drm/drm:
drm/radeon: fix si_enable_smc_cac() failed issue
drm/amdgpu/renoir: move gfxoff handling into gfx9 module
drm/amdgpu: add warning for GRBM 1-cycle delay issue in gfx9
drm/amdgpu: add dummy read by engines for some GCVM status registers in gfx10
drm/amdgpu: register gpu instance before fan boost feature enablment
drm/amd/swSMU: fix smu workload bit map error
drm/shmem: Add docbook comments for drm_gem_shmem_object madvise fields
drm/amdgpu: add navi14 PCI ID
Revert "drm/amd/display: setting the DIG_MODE to the correct value."
drm/amd/display: Add ENGINE_ID_DIGD condition check for Navi14
drm/amdgpu: dont schedule jobs while in reset
drm/amdgpu/arcturus: properly set BANK_SELECT and FRAGMENT_SIZE
drm/atomic: fix self-refresh helpers crtc state dereference
drm/i915/dp: Do not switch aux to TBT mode for non-TC ports
drm/i915: Avoid HPD poll detect triggering a new detect cycle
fbdev: c2p: Fix link failure on non-inlining
merged this merge window. The Amlogic driver was missing some flags
causing rates to be rounded improperly or clk_set_rate() to fail. The
Samsung driver wasn't freeing everything on error paths and improperly
saving/restoring PLL state across suspend/resume. The at91 driver was
calling msleep() too early when scheduling hadn't started, so we put in
place a quick solution until we can handle this sort of problem in the
core framework. There were also problems with the Allwinner driver and
operator precedence being incorrect causing subtle bugs. Finally, the TI
driver was duplicating aliases and not delaying long enough leading to
some unexpected timeouts.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fixes from Stephen Boyd:
"Fixes for various clk driver issues that happened because of code we
merged this merge window.
The Amlogic driver was missing some flags causing rates to be rounded
improperly or clk_set_rate() to fail. The Samsung driver wasn't
freeing everything on error paths and improperly saving/restoring PLL
state across suspend/resume. The at91 driver was calling msleep() too
early when scheduling hadn't started, so we put in place a quick
solution until we can handle this sort of problem in the core
framework.
There were also problems with the Allwinner driver and operator
precedence being incorrect causing subtle bugs. Finally, the TI driver
was duplicating aliases and not delaying long enough leading to some
unexpected timeouts"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk: ti: clkctrl: Fix failed to enable error with double udelay timeout
clk: ti: dra7-atl-clock: Remove ti_clk_add_alias call
clk: sunxi-ng: a80: fix the zero'ing of bits 16 and 18
clk: sunxi: Fix operator precedence in sunxi_divs_clk_setup
clk: ast2600: Fix enabling of clocks
clk: at91: avoid sleeping early
clk: imx8m: Use SYS_PLL1_800M as intermediate parent of CLK_ARM
clk: samsung: exynos5420: Preserve PLL configuration during suspend/resume
clk: samsung: exynos542x: Move G3D subsystem clocks to its sub-CMU
clk: samsung: exynos5433: Fix error paths
clk: at91: sam9x60: fix programmable clock
clk: meson: g12a: set CLK_MUX_ROUND_CLOSEST on the cpu clock muxes
clk: meson: g12a: fix cpu clock rate setting
clk: meson: gxbb: let sar_adc_clk_div set the parent clock rate
There are two callers of this function and they both unlock the mutex so
this ends up being a double unlock.
Fixes: 44ed167da7 ("drbd: rcu_read_lock() and rcu_dereference() for tconn->net_conf")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
The max value of EPB can only be 0x0F. Attempting to set more than that
triggers an "unchecked MSR access error" warning which happens in
intel_pstate_hwp_force_min_perf() called via cpufreq stop_cpu().
However, it is not even necessary to touch the EPB from intel_pstate,
because it is restored on every CPU online by the intel_epb.c code,
so let that code do the right thing and drop the redundant (and
incorrect) EPB update from intel_pstate.
Fixes: af3b7379e2 ("cpufreq: intel_pstate: Force HWP min perf before offline")
Reported-by: Qian Cai <cai@lca.pw>
Cc: 5.2+ <stable@vger.kernel.org> # 5.2+
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
[ rjw: Changelog ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
In the first 5 minutes after boot (time of INITIAL_JIFFIES),
ieee80211_sta_last_active() returns zero if last_ack is zero. This
leads to "inactive time" showing jiffies_to_msecs(jiffies).
# iw wlan0 station get fc:ec:da:64:a6:dd
Station fc:ec:da:64:a6:dd (on wlan0)
inactive time: 4294894049 ms
.
.
connected time: 70 seconds
Fix by returning last_rx if last_ack == 0.
Signed-off-by: Ahmed Zaki <anzaki@gmail.com>
Link: https://lore.kernel.org/r/20191031121243.27694-1-anzaki@gmail.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The FQ implementation used by mac80211 allocates memory using kmalloc(),
which can fail; and Johannes reported that this actually happens in
practice.
To avoid this, switch the allocation to kvmalloc() instead; this also
brings fq_impl in line with all the FQ qdiscs.
Fixes: 557fc4a098 ("fq: add fair queuing framework")
Reported-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/r/20191105155750.547379-1-toke@redhat.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
drm-fixes-5.4-2019-11-06:
amdgpu:
- Fix navi14 display issue root cause and revert workaround
- GPU reset scheduler interaction fix
- Fix fan boost on multi-GPU
- Gfx10 and sdma5 fixes for navi
- GFXOFF fix for renoir
- Add navi14 PCI ID
- GPUVM fix for arcturus
radeon:
- Port an SI power fix from amdgpu
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexdeucher@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191107032241.1021217-1-alexander.deucher@amd.com
- Do not use TBT type for non Type-C ports.
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Merge tag 'drm-intel-fixes-2019-11-06' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
- Fix HPD poll to avoid kworker consuming a lot of cpu cycles.
- Do not use TBT type for non Type-C ports.
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191106213958.GA16525@intel.com
- Fix for a state dereference in atomic self-refresh helpers
- One compilation fix for c2p fbdev helpers
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Merge tag 'drm-misc-fixes-2019-11-07-1' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes
- Some new documentation for GEM shmem madvise helpers
- Fix for a state dereference in atomic self-refresh helpers
- One compilation fix for c2p fbdev helpers
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20191107082215.GA34850@gilmour.lan
Hendrik reported routes in the main table using source address are not
removed when the address is removed. The problem is that fib_sync_down_addr
does not account for devices in the default VRF which are associated
with the main table. Fix by updating the table id reference.
Fixes: 5a56a0b3a4 ("net: Don't delete routes in different VRFs")
Reported-by: Hendrik Donner <hd@os-cillation.de>
Signed-off-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
While looking at a syzbot KCSAN report [1], I found multiple
issues in this code :
1) fib6_nh->last_probe has an initial value of 0.
While probably okay on 64bit kernels, this causes an issue
on 32bit kernels since the time_after(jiffies, 0 + interval)
might be false ~24 days after boot (for HZ=1000)
2) The data-race found by KCSAN
I could use READ_ONCE() and WRITE_ONCE(), but we also can
take the opportunity of not piling-up too many rt6_probe_deferred()
works by using instead cmpxchg() so that only one cpu wins the race.
[1]
BUG: KCSAN: data-race in find_match / find_match
write to 0xffff8880bb7aabe8 of 8 bytes by interrupt on cpu 1:
rt6_probe net/ipv6/route.c:663 [inline]
find_match net/ipv6/route.c:757 [inline]
find_match+0x5bd/0x790 net/ipv6/route.c:733
__find_rr_leaf+0xe3/0x780 net/ipv6/route.c:831
find_rr_leaf net/ipv6/route.c:852 [inline]
rt6_select net/ipv6/route.c:896 [inline]
fib6_table_lookup+0x383/0x650 net/ipv6/route.c:2164
ip6_pol_route+0xee/0x5c0 net/ipv6/route.c:2200
ip6_pol_route_output+0x48/0x60 net/ipv6/route.c:2452
fib6_rule_lookup+0x3d6/0x470 net/ipv6/fib6_rules.c:117
ip6_route_output_flags_noref+0x16b/0x230 net/ipv6/route.c:2484
ip6_route_output_flags+0x50/0x1a0 net/ipv6/route.c:2497
ip6_dst_lookup_tail+0x25d/0xc30 net/ipv6/ip6_output.c:1049
ip6_dst_lookup_flow+0x68/0x120 net/ipv6/ip6_output.c:1150
inet6_csk_route_socket+0x2f7/0x420 net/ipv6/inet6_connection_sock.c:106
inet6_csk_xmit+0x91/0x1f0 net/ipv6/inet6_connection_sock.c:121
__tcp_transmit_skb+0xe81/0x1d60 net/ipv4/tcp_output.c:1169
tcp_transmit_skb net/ipv4/tcp_output.c:1185 [inline]
tcp_xmit_probe_skb+0x19b/0x1d0 net/ipv4/tcp_output.c:3735
read to 0xffff8880bb7aabe8 of 8 bytes by interrupt on cpu 0:
rt6_probe net/ipv6/route.c:657 [inline]
find_match net/ipv6/route.c:757 [inline]
find_match+0x521/0x790 net/ipv6/route.c:733
__find_rr_leaf+0xe3/0x780 net/ipv6/route.c:831
find_rr_leaf net/ipv6/route.c:852 [inline]
rt6_select net/ipv6/route.c:896 [inline]
fib6_table_lookup+0x383/0x650 net/ipv6/route.c:2164
ip6_pol_route+0xee/0x5c0 net/ipv6/route.c:2200
ip6_pol_route_output+0x48/0x60 net/ipv6/route.c:2452
fib6_rule_lookup+0x3d6/0x470 net/ipv6/fib6_rules.c:117
ip6_route_output_flags_noref+0x16b/0x230 net/ipv6/route.c:2484
ip6_route_output_flags+0x50/0x1a0 net/ipv6/route.c:2497
ip6_dst_lookup_tail+0x25d/0xc30 net/ipv6/ip6_output.c:1049
ip6_dst_lookup_flow+0x68/0x120 net/ipv6/ip6_output.c:1150
inet6_csk_route_socket+0x2f7/0x420 net/ipv6/inet6_connection_sock.c:106
inet6_csk_xmit+0x91/0x1f0 net/ipv6/inet6_connection_sock.c:121
__tcp_transmit_skb+0xe81/0x1d60 net/ipv4/tcp_output.c:1169
Reported by Kernel Concurrency Sanitizer on:
CPU: 0 PID: 18894 Comm: udevd Not tainted 5.4.0-rc3+ #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Fixes: cc3a86c802 ("ipv6: Change rt6_probe to take a fib6_nh")
Fixes: f547fac624 ("ipv6: rate-limit probes for neighbourless routes")
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reported-by: syzbot <syzkaller@googlegroups.com>
Reviewed-by: David Ahern <dsahern@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This patch fixes the problem of the spin locks, originally
meant for the netpoll path of hns driver, causing deadlock in
the normal NAPI poll path. The issue happened due to the presence
of the stray leftover spin lock code related to the netpoll,
whose support was earlier removed from the HNS[1], got activated
due to enabling of NET_POLL_CONTROLLER switch.
Earlier background:
The netpoll handling code originally had this bug(as identified
by Marc Zyngier[2]) of wrong spin lock API being used which did
not disable the interrupts and hence could cause locking issues.
i.e. if the lock were first acquired in context to thread like
'ip' util and this lock if ever got later acquired again in
context to the interrupt context like TX/RX (Interrupts could
always pre-empt the lock holding task and acquire the lock again)
and hence could cause deadlock.
Proposed Solution:
1. If the netpoll was enabled in the HNS driver, which is not
right now, we could have simply used spin_[un]lock_irqsave()
2. But as netpoll is disabled, therefore, it is best to get rid
of the existing locks and stray code for now. This should
solve the problem reported by Marc.
[1] https://git.kernel.org/torvalds/c/4bd2c03be7
[2] https://patchwork.ozlabs.org/patch/1189139/
Fixes: 4bd2c03be7 ("net: hns: remove ndo_poll_controller")
Cc: lipeng <lipeng321@huawei.com>
Cc: Yisen Zhuang <yisen.zhuang@huawei.com>
Cc: Eric Dumazet <edumazet@google.com>
Cc: David S. Miller <davem@davemloft.net>
Reported-by: Marc Zyngier <maz@kernel.org>
Acked-by: Marc Zyngier <maz@kernel.org>
Tested-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Salil Mehta <salil.mehta@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
A malicious device may give half an answer when asked
for its MTU. The driver will proceed after this with
a garbage MTU. Anything but a complete answer must be treated
as an error.
V2: used sizeof as request by Alexander
Reported-and-tested-by: syzbot+0631d878823ce2411636@syzkaller.appspotmail.com
Signed-off-by: Oliver Neukum <oneukum@suse.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The function nfc_put_device(dev) is called twice to drop the reference
to dev when there is no associated local llcp. Remove one of them to fix
the bug.
Fixes: 52feb444a9 ("NFC: Extend netlink interface for LTO, RW, and MIUX parameters support")
Fixes: d9b8d8e19b ("NFC: llcp: Service Name Lookup netlink interface")
Signed-off-by: Pan Bian <bianpan2016@163.com>
Reviewed-by: Johan Hovold <johan@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull HID fixes from Jiri Kosina:
"Two fixes for the HID subsystem:
- regression fix for i2c-hid power management (Hans de Goede)
- signed vs unsigned API fix for Wacom driver (Jason Gerecke)"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
HID: wacom: generic: Treat serial number and related fields as unsigned
HID: i2c-hid: Send power-on command after reset
If someone requests fscache on the mount, and the kernel doesn't
support it, it should fail the mount.
[ Drop ceph prefix -- it's provided by pr_err. ]
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
These are a collection of fixes since v5.4-rc4 that have accumilated,
they're all driver specific and there's nothing major in here so it's
probably not essential to actually send them but I'll leave that call to
you.
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Merge tag 'asoc-fix-v5.4-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Fixes for v5.4
These are a collection of fixes since v5.4-rc4 that have accumilated,
they're all driver specific and there's nothing major in here so it's
probably not essential to actually send them but I'll leave that call to
you.
We leak the page that we use to create skb page fragments
when destroying the xfrm_state. Fix this by dropping a
page reference if a page was assigned to the xfrm_state.
Fixes: cac2661c53 ("esp4: Avoid skb_cow_data whenever possible")
Reported-by: JD <jdtxs00@gmail.com>
Reported-by: Paul Wouters <paul@nohats.ca>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
The variable nfcid_skb is not changed in the callee nfc_hci_get_param()
if error occurs. Consequently, the freed variable nfcid_skb will be
freed again, resulting in a double free bug. Set nfcid_skb to NULL after
releasing it to fix the bug.
Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Since old firmware does not support HCLGE_OPC_PF_RST_DONE, it will
return -EOPNOTSUPP to the driver when received this command. So
for this case, it should just print a warning and return success
to the caller.
Fixes: 72e2fb0799 ("net: hns3: clear reset interrupt status in hclge_irq_handle()")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'mlx5-fixes-2019-11-06' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux
Saeed Mahamees says:
====================
Mellanox, mlx5 fixes 2019-11-06
This series introduces some fixes to mlx5 driver.
Please pull and let me know if there is any problem.
No -stable this time.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Functions like phy_modify_paged() read the current page, on Realtek
PHY's this means reading the value of register 0x1f. Add special
handling for reading this register, similar to what we do already
in r8168g_mdio_write(). Currently we read a random value that by
chance seems to be 0 always.
Fixes: a2928d2864 ("r8169: use paged versions of phylib MDIO access functions")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Jose Abreu says:
====================
net: stmmac: Fixes for -net
Misc fixes for stmmac.
Patch 1/11 and 2/11, use the correct variable type for bitrev32() calls.
Patch 3/11, fixes the random failures the we were seing when running selftests.
Patch 4/11, prevents a crash that can occur when receiving AVB packets and with
SPH feature enabled on XGMAC.
Patch 5/11, fixes the correct settings for CBS on XGMAC.
Patch 6/11, corrects the interpretation of AVB feature on XGMAC.
Patch 7/11, disables Flow Control for AVB enabled queues on XGMAC.
Patch 8/11, disables MMC interrupts on XGMAC, preventing a storm of interrupts.
Patch 9/11, fixes the number of packets that were being taken into account in
the RX path cleaning function.
Patch 10/11, fixes an incorrect descriptor setting that could cause IP
misbehavior.
Patch 11/11, fixes the IOC generation mechanism when multiple descriptors
are used.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
IOC bit must be only set in the last descriptor. Move the logic up a
little bit to make sure it's set in the correct descriptor.
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When using addressing > 32 bits the TSO first descriptor only has the
header so we can't set the payload field for this descriptor. Let's
reset the variable so that buffer 2 value is zero.
Fixes: a993db88d1 ("net: stmmac: Enable support for > 32 Bits addressing in XGMAC")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Currently, stmmac_rx() is counting the number of descriptors but it
should count the number of packets as specified by the NAPI limit.
Fix this.
Fixes: ec222003bd ("net: stmmac: Prepare to add Split Header support")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
MMC interrupts were being enabled, which is not what we want because it
will lead to a storm of interrupts that are not handled at all. Fix it
by disabling all MMC interrupts for XGMAC.
Fixes: b6cdf09f51 ("net: stmmac: xgmac: Implement MMC counters")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When in AVB mode we need to disable flow control to prevent MAC from
pausing in TX side.
Fixes: ec6ea8e3ee ("net: stmmac: Add CBS support in XGMAC2")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Fix incorrect precedence of operators. For reference: AV implies AV
Feature but RAV implies only RX side AV Feature. As we want full AV
features we need to check RAV.
Fixes: c2b69474d6 ("net: stmmac: xgmac: Correct RAVSEL field interpretation")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
When we change between Transmission Scheduling Algorithms, we need to
clear previous values so that the new chosen algorithm is correctly
selected.
Fixes: ec6ea8e3ee ("net: stmmac: Add CBS support in XGMAC2")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Split Header length is only available when L34T == 0. Fix this by
correctly checking if L34T is zero before trying to get Header length.
Fixes: 67afd6d1cf ("net: stmmac: Add Split Header support and enable it in XGMAC cores")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In L2 tests that filter packets by destination MAC address we need to
prevent false positives that can occur if we add an address that
collides with the existing ones.
To fix this, lets manually check if the new address to be added is
already present in the NIC and use a different one if so. For Hash
filtering this also envolves converting the address to the hash.
Fixes: 091810dbde ("net: stmmac: Introduce selftests support")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The bitrev32 function returns an u32 var, not an int. Fix it.
Fixes: 0efedbf11f ("net: stmmac: xgmac: Fix XGMAC selftests")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The bitrev32 function returns an u32 var, not an int. Fix it.
Fixes: 477286b53f ("stmmac: add GMAC4 core support")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pablo Neira Ayuso says:
====================
Netfilter fixes for net
The following patchset contains Netfilter fixes for net:
1) Missing register size validation in bitwise and cmp offloads.
2) Fix error code in ip_set_sockfn_get() when copy_to_user() fails,
from Dan Carpenter.
3) Oneliner to copy MAC address in IPv6 hash:ip,mac sets, from
Stefano Brivio.
4) Missing policy validation in ipset with NL_VALIDATE_STRICT,
from Jozsef Kadlecsik.
5) Fix unaligned access to private data area of nf_tables instructions,
from Lukas Wunner.
6) Relax check for object updates, reported as a regression by
Eric Garver, patch from Fernando Fernandez Mancera.
7) Crash on ebtables dnat extension when used from the output path.
From Florian Westphal.
8) Fix bogus EOPNOTSUPP when updating basechain flags.
9) Fix bogus EBUSY when updating a basechain that is already offloaded.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
Linus Torvalds