- Fix SPI CS pinmux for the final production version of imx8mn-beacon
board.
- Fix GPIOs for USDHC2 CD and WP signals on imx8qm-mek board.
- Assign default clock rate for i.MX8 LPUARTs to fix UART failure.
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Merge tag 'imx-fixes-6.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixes
i.MX fixes for 6.4, round 2:
- Fix SPI CS pinmux for the final production version of imx8mn-beacon
board.
- Fix GPIOs for USDHC2 CD and WP signals on imx8qm-mek board.
- Assign default clock rate for i.MX8 LPUARTs to fix UART failure.
* tag 'imx-fixes-6.4-2' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
arm64: dts: imx8mn-beacon: Fix SPI CS pinmux
arm64: dts: imx8-ss-dma: assign default clock rate for lpuarts
arm64: dts: imx8qm-mek: correct GPIOs for USDHC2 CD and WP signals
Link: https://lore.kernel.org/r/20230607141312.GU4199@dragon
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
ieee80211_vif_set_links requires the sdata->local->mtx lock to be held.
Add the appropriate locking around the calls in both the link add and
remove handlers.
This causes a warning when e.g. ieee80211_link_release_channel is called
via ieee80211_link_stop from ieee80211_vif_update_links.
Fixes: 0d8c4a3c86 ("wifi: mac80211: implement add/del interface link callbacks")
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230608163202.fa0c6597fdad.I83dd70359f6cda30f86df8418d929c2064cf4995@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The wrapper function was incorrectly calling the add handler instead of
the del handler. This had no negative side effect as the default
handlers are essentially identical.
Fixes: f2a0290b2d ("wifi: cfg80211: add optional link add/remove callbacks")
Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230608163202.ebd00e000459.Iaff7dc8d1cdecf77f53ea47a0e5080caa36ea02a@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
In the normal MLME code we always call
ieee80211_mgd_set_link_qos_params() before
ieee80211_link_info_change_notify() and some drivers,
notably iwlwifi, rely on that as they don't do anything
(but store the data) in their conf_tx.
Fix the order here to be the same as in the normal code
paths, so this isn't broken.
Fixes: 3d90110292 ("wifi: mac80211: implement link switching")
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230608163202.a2a86bba2f80.Iac97e04827966d22161e63bb6e201b4061e9651b@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
The locking was changed recently so now the caller holds the wiphy_lock()
lock. Taking the lock inside the reg_wdev_chan_valid() function will
lead to a deadlock.
Fixes: f7e60032c6 ("wifi: cfg80211: fix locking in regulatory disconnect")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/40c4114a-6cb4-4abf-b013-300b598aba65@moroto.mountain
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
In the event of a failure in tcf_change_indev(), u32_set_parms() will
immediately return without decrementing the recently incremented
reference counter. If this happens enough times, the counter will
rollover and the reference freed, leading to a double free which can be
used to do 'bad things'.
In order to prevent this, move the point of possible failure above the
point where the reference counter is incremented. Also save any
meaningful return values to be applied to the return data at the
appropriate point in time.
This issue was caught with KASAN.
Fixes: 705c709126 ("net: sched: cls_u32: no need to call tcf_exts_change for newly allocated struct")
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
As shown in [1], out-of-bounds access occurs in two cases:
1)when the qdisc of the taprio type is used to replace the previously
configured taprio, count and offset in tc_to_txq can be set to 0. In this
case, the value of *txq in taprio_next_tc_txq() will increases
continuously. When the number of accessed queues exceeds the number of
queues on the device, out-of-bounds access occurs.
2)When packets are dequeued, taprio can be deleted. In this case, the tc
rule of dev is cleared. The count and offset values are also set to 0. In
this case, out-of-bounds access is also caused.
Now the restriction on the queue number is added.
[1] https://groups.google.com/g/syzkaller-bugs/c/_lYOKgkBVMg
Fixes: 2f530df76c ("net/sched: taprio: give higher priority to higher TCs in software dequeue mode")
Reported-by: syzbot+04afcb3d2c840447559a@syzkaller.appspotmail.com
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Tested-by: Pedro Tammela <pctammela@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
CN10KB silicon introduced a new exact match feature,
which is used for DMAC filtering. The state of installed
DMAC filters in this exact match table is getting corrupted
when promiscuous mode is toggled. Fix this by not touching
Exact match related config when promiscuous mode is toggled.
Fixes: 2dba9459d2 ("octeontx2-af: Wrapper functions for MAC addr add/del/update/reset")
Signed-off-by: Ratheesh Kannoth <rkannoth@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
The timestamp descriptors were intended to act cyclically. Descriptors
from index 0 through gq->ring_size - 1 contain actual information, and
the last index (gq->ring_size) should have LINKFIX to indicate
the first index 0 descriptor. However, the LINKFIX value is missing,
causing the timestamp feature to stop after all descriptors are used.
To resolve this issue, set the LINKFIX to the timestamp descritors.
Reported-by: Phong Hoang <phong.hoang.wz@renesas.com>
Fixes: 33f5d733b5 ("net: renesas: rswitch: Improve TX timestamp accuracy")
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Instead of relying on skb->transport_header being set correctly, opt
instead to parse the L3 header length out of the L3 headers for both
IPv4/IPv6 when the Extended Layer Op for tcp/udp is used. This fixes a
bug if GRO is disabled, when GRO is disabled skb->transport_header is
set by __netif_receive_skb_core() to point to the L3 header, it's later
fixed by the upper protocol layers, but act_pedit will receive the SKB
before the fixups are completed. The existing behavior causes the
following to edit the L3 header if GRO is disabled instead of the UDP
header:
tc filter add dev eth0 ingress protocol ip flower ip_proto udp \
dst_ip 192.168.1.3 action pedit ex munge udp set dport 18053
Also re-introduce a rate-limited warning if we were unable to extract
the header offset when using the 'ex' interface.
Fixes: 71d0ed7079 ("net/act_pedit: Support using offset relative to
the conventional network headers")
Signed-off-by: Max Tottenham <mtottenh@akamai.com>
Reviewed-by: Josh Hunt <johunt@akamai.com>
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202305261541.N165u9TZ-lkp@intel.com/
Reviewed-by: Pedro Tammela <pctammela@mojatatu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Merge tag 'v6.4-rc5' into v4l_for_linus
Linux 6.4-rc5
* tag 'v6.4-rc5': (303 commits)
Linux 6.4-rc5
leds: qcom-lpg: Fix PWM period limits
selftests/ftrace: Choose target function for filter test from samples
KVM: selftests: Add test for race in kvm_recalculate_apic_map()
KVM: x86: Bail from kvm_recalculate_phys_map() if x2APIC ID is out-of-bounds
KVM: x86: Account fastpath-only VM-Exits in vCPU stats
KVM: SVM: vNMI pending bit is V_NMI_PENDING_MASK not V_NMI_BLOCKING_MASK
KVM: x86/mmu: Grab memslot for correct address space in NX recovery worker
tpm, tpm_tis: correct tpm_tis_flags enumeration values
Revert "ext4: remove ac->ac_found > sbi->s_mb_min_to_scan dead check in ext4_mb_check_limits"
riscv: Implement missing huge_ptep_get
riscv: Fix huge_ptep_set_wrprotect when PTE is a NAPOT
module/decompress: Fix error checking on zstd decompression
fork, vhost: Use CLONE_THREAD to fix freezer/ps regression
dt-bindings: serial: 8250_omap: add rs485-rts-active-high
selinux: don't use make's grouped targets feature yet
riscv: perf: Fix callchain parse error with kernel tracepoint events
mptcp: fix active subflow finalization
mptcp: add annotations around sk->sk_shutdown accesses
mptcp: fix data race around msk->first access
...
fb-helper:
- Fill in fb-helper vars more correctly.
amdgpu:
- S0ix fixes
- GPU reset fixes
- SMU13 fixes
- SMU11 fixes
- Misc Display fixes
- Revert RV/RV2/PCO clock counter changes
- Fix Stoney xclk value
- Fix reserved vram debug info
radeon:
- Fix a potential use after free
i915:
- CDCLK voltage fix for ADL-P
- eDP wake sync pulse fix.
- Two error handling fixes to selftests
exynos:
- Fix wrong return in Exynos vidi driver.
- Fix use-after-free issue to Exynos g2d driver.
ast:
- resume and modeset fixes for ast.
ivpu:
- Assorted ivpu fixes.
lima:
- lima context destroy fix.
msm:
- Fix max segment size to address splat on newer a6xx
- Disable PSR by default w/ modparam to re-enable, since there
still seems to be a lingering issue
- Fix HPD issue
- Fix issue with unitialized GMU mutex
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Merge tag 'drm-fixes-2023-06-09' of git://anongit.freedesktop.org/drm/drm
Pull drm fixes from Dave Airlie:
"Bit busier and a bit more scattered than usual. amdgpu is the main
one, with ivpu and msm having a few fixes, then i915, exynos, ast,
lima, radeon with some misc bits, but overall nothing standing out.
fb-helper:
- Fill in fb-helper vars more correctly
amdgpu:
- S0ix fixes
- GPU reset fixes
- SMU13 fixes
- SMU11 fixes
- Misc Display fixes
- Revert RV/RV2/PCO clock counter changes
- Fix Stoney xclk value
- Fix reserved vram debug info
radeon:
- Fix a potential use after free
i915:
- CDCLK voltage fix for ADL-P
- eDP wake sync pulse fix
- Two error handling fixes to selftests
exynos:
- Fix wrong return in Exynos vidi driver
- Fix use-after-free issue to Exynos g2d driver
ast:
- resume and modeset fixes for ast
ivpu:
- Assorted ivpu fixes
lima:
- lima context destroy fix
msm:
- Fix max segment size to address splat on newer a6xx
- Disable PSR by default w/ modparam to re-enable, since there still
seems to be a lingering issue
- Fix HPD issue
- Fix issue with unitialized GMU mutex"
* tag 'drm-fixes-2023-06-09' of git://anongit.freedesktop.org/drm/drm: (32 commits)
drm/msm/a6xx: initialize GMU mutex earlier
drm/msm/dp: enable HDP plugin/unplugged interrupts at hpd_enable/disable
accel/ivpu: Fix sporadic VPU boot failure
accel/ivpu: Do not use mutex_lock_interruptible
accel/ivpu: Do not trigger extra VPU reset if the VPU is idle
drm/amd/display: Reduce sdp bw after urgent to 90%
drm/amdgpu: change reserved vram info print
drm/amdgpu: fix xclk freq on CHIP_STONEY
drm/radeon: fix race condition UAF in radeon_gem_set_domain_ioctl
Revert "drm/amdgpu: switch to golden tsc registers for raven/raven2"
Revert "drm/amdgpu: Differentiate between Raven2 and Raven/Picasso according to revision id"
Revert "drm/amdgpu: change the reference clock for raven/raven2"
drm/amd/display: add ODM case when looking for first split pipe
drm/amd: Make lack of `ACPI_FADT_LOW_POWER_S0` or `CONFIG_AMD_PMC` louder during suspend path
drm/amd/pm: conditionally disable pcie lane switching for some sienna_cichlid SKUs
drm/amd/pm: Fix power context allocation in SMU13
drm/amdgpu: fix Null pointer dereference error in amdgpu_device_recover_vram
drm/amd: Disallow s0ix without BIOS support again
drm/i915/selftests: Add some missing error propagation
drm/exynos: fix race condition UAF in exynos_g2d_exec_ioctl
...
82580/i354/i350 features circle-counter-like timestamp registers
that are different with newer i210. The EXTTS capture value in
AUXTSMPx should be converted from raw circle counter value to
timestamp value in resolution of 1 nanosec by the driver.
This issue can be reproduced on i350 nics, connecting an 1PPS
signal to a SDP pin, and run 'ts2phc' command to read external
1PPS timestamp value. On i210 this works fine, but on i350 the
extts is not correctly converted.
The i350/i354/82580's SYSTIM and other timestamp registers are
40bit counters, presenting time range of 2^40 ns, that means these
registers overflows every about 1099s. This causes all these regs
can't be used directly in contrast to the newer i210/i211s.
The igb driver needs to convert these raw register values to
valid time stamp format by using kernel timecounter apis for i350s
families. Here the igb_extts() just forgot to do the convert.
Fixes: 38970eac41 ("igb: support EXTTS on 82580/i354/i350")
Signed-off-by: Yuezhen Luan <eggcar.luan@gmail.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230607164116.3768175-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Ping sockets can't send packets when they're bound to a VRF master
device and the output interface is set to a slave device.
For example, when net.ipv4.ping_group_range is properly set, so that
ping6 can use ping sockets, the following kind of commands fails:
$ ip vrf exec red ping6 fe80::854:e7ff:fe88:4bf1%eth1
What happens is that sk->sk_bound_dev_if is set to the VRF master
device, but 'oif' is set to the real output device. Since both are set
but different, ping_v6_sendmsg() sees their value as inconsistent and
fails.
Fix this by allowing 'oif' to be a slave device of ->sk_bound_dev_if.
This fixes the following kselftest failure:
$ ./fcnal-test.sh -t ipv6_ping
[...]
TEST: ping out, vrf device+address bind - ns-B IPv6 LLA [FAIL]
Reported-by: Mirsad Todorovac <mirsad.todorovac@alu.unizg.hr>
Closes: https://lore.kernel.org/netdev/b6191f90-ffca-dbca-7d06-88a9788def9c@alu.unizg.hr/
Tested-by: Mirsad Todorovac <mirsad.todorovac@alu.unizg.hr>
Fixes: 5e45789698 ("net: ipv6: Fix ping to link-local addresses.")
Signed-off-by: Guillaume Nault <gnault@redhat.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/6c8b53108816a8d0d5705ae37bdc5a8322b5e3d9.1686153846.git.gnault@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
* Fix css_set reference leaks on fork failures.
* Fix CPU hotplug locking in cgroup_transfer_tasks() which is used by
cgroup1 cpuset.
* Doc update.
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Merge tag 'cgroup-for-6.4-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fixes from Tejun Heo:
- Fix css_set reference leaks on fork failures
- Fix CPU hotplug locking in cgroup_transfer_tasks() which is used by
cgroup1 cpuset
- Doc update
* tag 'cgroup-for-6.4-rc5-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: Documentation: Clarify usage of memory limits
cgroup: always put cset in cgroup_css_set_put_fork
cgroup: fix missing cpus_read_{lock,unlock}() in cgroup_transfer_tasks()
The internal_hpd flag is set to true by dp_bridge_hpd_enable() and set to
false by dp_bridge_hpd_disable() to handle GPIO pinmuxed into DP controller
case. HDP related interrupts can not be enabled until internal_hpd is set
to true. At current implementation dp_display_config_hpd() will initialize
DP host controller first followed by enabling HDP related interrupts if
internal_hpd was true at that time. Enable HDP related interrupts depends on
internal_hpd status may leave system with DP driver host is in running state
but without HDP related interrupts being enabled. This will prevent external
display from being detected. Eliminated this dependency by moving HDP related
interrupts enable/disable be done at dp_bridge_hpd_enable/disable() directly
regardless of internal_hpd status.
Changes in V3:
-- dp_catalog_ctrl_hpd_enable() and dp_catalog_ctrl_hpd_disable()
-- rewording ocmmit text
Changes in V4:
-- replace dp_display_config_hpd() with dp_display_host_start()
-- move enable_irq() at dp_display_host_start();
Changes in V5:
-- replace dp_display_host_start() with dp_display_host_init()
Changes in V6:
-- squash remove enable_irq() and disable_irq()
Fixes: cd198cadde ("drm/msm/dp: Rely on hpd_enable/disable callbacks")
Signed-off-by: Kuogee Hsieh <quic_khsieh@quicinc.com>
Tested-by: Leonard Lausen <leonard@lausen.nl> # on sc7180 lazor
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Bjorn Andersson <andersson@kernel.org>
Tested-by: Bjorn Andersson <andersson@kernel.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Link: https://lore.kernel.org/r/1684878756-17830-1-git-send-email-quic_khsieh@quicinc.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
- Fix build breakage due to bogus MAX_ORDER definitions on !4k pages
- Avoid masking fault address for perf software events
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
"Two tiny arm64 fixes for -rc6.
One fixes a build breakage when MAX_ORDER can be nonsensical if
CONFIG_EXPERT=y and the other fixes the address masking for perf's
page fault software events so that it is consistent amongst them:
- Fix build breakage due to bogus MAX_ORDER definitions on !4k pages
- Avoid masking fault address for perf software events"
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: mm: pass original fault address to handle_mm_fault() in PER_VMA_LOCK block
arm64: Remove the ARCH_FORCE_MAX_ORDER config input prompt
For ENETC hardware, the TCs are numbered from 0 to N-1, where N
is the number of TCs. Numerically higher TC has higher priority.
It's obvious that the highest priority TC index should be N-1 and
the 2nd highest priority TC index should be N-2.
However, the previous logic uses netdev_get_prio_tc_map() to get
the indexes of highest priority and 2nd highest priority TCs, it
does not make sense and is incorrect to give a "tc" argument to
netdev_get_prio_tc_map(). So the driver may get the wrong indexes
of the two highest priotiry TCs which would lead to failed to set
the CBS for the two highest priotiry TCs.
e.g.
$ tc qdisc add dev eno0 parent root handle 100: mqprio num_tc 6 \
map 0 0 1 1 2 3 4 5 queues 1@0 1@1 1@2 1@3 2@4 2@6 hw 1
$ tc qdisc replace dev eno0 parent 100:6 cbs idleslope 100000 \
sendslope -900000 hicredit 12 locredit -113 offload 1
$ Error: Specified device failed to setup cbs hardware offload.
^^^^^
In this example, the previous logic deems the indexes of the two
highest priotiry TCs should be 3 and 2. Actually, the indexes are
5 and 4, because the number of TCs is 6. So it would be failed to
configure the CBS for the two highest priority TCs.
Fixes: c431047c4e ("enetc: add support Credit Based Shaper(CBS) for hardware offload")
Signed-off-by: Wei Fang <wei.fang@nxp.com>
Reviewed-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
In case of error when adding a new rule that refers to an anonymous set,
deactivate expressions via NFT_TRANS_PREPARE state, not NFT_TRANS_RELEASE.
Thus, the lookup expression marks anonymous sets as inactive in the next
generation to ensure it is not reachable in this transaction anymore and
decrement the set refcount as introduced by c1592a8994 ("netfilter:
nf_tables: deactivate anonymous set from preparation phase"). The abort
step takes care of undoing the anonymous set.
This is also consistent with rule deletion, where NFT_TRANS_PREPARE is
used. Note that this error path is exercised in the preparation step of
the commit protocol. This patch replaces nf_tables_rule_release() by the
deactivate and destroy calls, this time with NFT_TRANS_PREPARE.
Due to this incorrect error handling, it is possible to access a
dangling pointer to the anonymous set that remains in the transaction
list.
[1009.379054] BUG: KASAN: use-after-free in nft_set_lookup_global+0x147/0x1a0 [nf_tables]
[1009.379106] Read of size 8 at addr ffff88816c4c8020 by task nft-rule-add/137110
[1009.379116] CPU: 7 PID: 137110 Comm: nft-rule-add Not tainted 6.4.0-rc4+ #256
[1009.379128] Call Trace:
[1009.379132] <TASK>
[1009.379135] dump_stack_lvl+0x33/0x50
[1009.379146] ? nft_set_lookup_global+0x147/0x1a0 [nf_tables]
[1009.379191] print_address_description.constprop.0+0x27/0x300
[1009.379201] kasan_report+0x107/0x120
[1009.379210] ? nft_set_lookup_global+0x147/0x1a0 [nf_tables]
[1009.379255] nft_set_lookup_global+0x147/0x1a0 [nf_tables]
[1009.379302] nft_lookup_init+0xa5/0x270 [nf_tables]
[1009.379350] nf_tables_newrule+0x698/0xe50 [nf_tables]
[1009.379397] ? nf_tables_rule_release+0xe0/0xe0 [nf_tables]
[1009.379441] ? kasan_unpoison+0x23/0x50
[1009.379450] nfnetlink_rcv_batch+0x97c/0xd90 [nfnetlink]
[1009.379470] ? nfnetlink_rcv_msg+0x480/0x480 [nfnetlink]
[1009.379485] ? __alloc_skb+0xb8/0x1e0
[1009.379493] ? __alloc_skb+0xb8/0x1e0
[1009.379502] ? entry_SYSCALL_64_after_hwframe+0x46/0xb0
[1009.379509] ? unwind_get_return_address+0x2a/0x40
[1009.379517] ? write_profile+0xc0/0xc0
[1009.379524] ? avc_lookup+0x8f/0xc0
[1009.379532] ? __rcu_read_unlock+0x43/0x60
Fixes: 958bee14d0 ("netfilter: nf_tables: use new transaction infrastructure to handle sets")
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
We can race where we have added work to the work_list, but
vhost_task_fn has passed that check but not yet set us into
TASK_INTERRUPTIBLE. wake_up_process will see us in TASK_RUNNING and
just return.
This bug was intoduced in commit f9010dbdce ("fork, vhost: Use
CLONE_THREAD to fix freezer/ps regression") when I moved the setting
of TASK_INTERRUPTIBLE to simplfy the code and avoid get_signal from
logging warnings about being in the wrong state. This moves the setting
of TASK_INTERRUPTIBLE back to before we test if we need to stop the
task to avoid a possible race there as well. We then have vhost_worker
set TASK_RUNNING if it finds work similar to before.
Fixes: f9010dbdce ("fork, vhost: Use CLONE_THREAD to fix freezer/ps regression")
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Message-Id: <20230607192338.6041-3-michael.christie@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
If userspace does VHOST_VSOCK_SET_GUEST_CID before VHOST_SET_OWNER we
can race where:
1. thread0 calls vhost_transport_send_pkt -> vhost_work_queue
2. thread1 does VHOST_SET_OWNER which calls vhost_worker_create.
3. vhost_worker_create will set the dev->worker pointer before setting
the worker->vtsk pointer.
4. thread0's vhost_work_queue will see the dev->worker pointer is
set and try to call vhost_task_wake using not yet set worker->vtsk
pointer.
5. We then crash since vtsk is NULL.
Before commit 6e890c5d50 ("vhost: use vhost_tasks for worker
threads"), we only had the worker pointer so we could just check it to
see if VHOST_SET_OWNER has been done. After that commit we have the
vhost_worker and vhost_task pointer, so we can now hit the bug above.
This patch embeds the vhost_worker in the vhost_dev and moves the work
list initialization back to vhost_dev_init, so we can just check the
worker.vtsk pointer to check if VHOST_SET_OWNER has been done like
before.
Fixes: 6e890c5d50 ("vhost: use vhost_tasks for worker threads")
Signed-off-by: Mike Christie <michael.christie@oracle.com>
Message-Id: <20230607192338.6041-2-michael.christie@oracle.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reported-by: syzbot+d0d442c22fa8db45ff0e@syzkaller.appspotmail.com
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Fix possible virtqueue used buffers leak and corresponding stuck
in case of temporary -EIO from sendmsg() which is produced by
tun driver while backend device is not up.
In case of no-retriable error and zcopy do not revert upend_idx
to pass packet data (that is update used_idx in corresponding
vhost_zerocopy_signal_used()) as if packet data has been
transferred successfully.
v2: set vq->heads[ubuf->desc].len equal to VHOST_DMA_DONE_LEN
in case of fake successful transmit.
Signed-off-by: Andrey Smetanin <asmetanin@yandex-team.ru>
Message-Id: <20230424204411.24888-1-asmetanin@yandex-team.ru>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Andrey Smetanin <asmetanin@yandex-team.ru>
Acked-by: Jason Wang <jasowang@redhat.com>
As is done in the net, iscsi, and vsock vhost support, let the vdpa vqs
know about the features that have been negotiated. This allows vhost
to more safely make decisions based on the features, such as when using
PACKED vs split queues.
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20230424225031.18947-2-shannon.nelson@amd.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Ignore executables for ringtest.
Signed-off-by: Rong Tao <rongtao@cestc.cn>
Message-Id: <tencent_C121802C93CB4095C6D7D95113442E830A07@qq.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Add the MAINTAINERS entries for the Renesas RZ/V2M I2C driver.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Acked-by: Fabrizio Castro <fabrizio.castro.jz@renesas.com>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Fix the buffer leak that occurs while switching
the port up and down with traffic and XDP by
checking for an active XDP program and freeing all empty TX buffers.
Fixes: efc2214b60 ("ice: Add support for XDP")
Signed-off-by: Kamil Maziarz <kamil.maziarz@intel.com>
Tested-by: Chandan Kumar Rout <chandanx.rout@intel.com> (A Contingent Worker at Intel)
Acked-by: Maciej Fijalkowski <maciej.fijalkowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
On riscv qemu platform, when add kprobe event on do_sys_open() to show
filename string arg, it just print fault as follow:
echo 'p:myprobe do_sys_open dfd=$arg1 filename=+0($arg2):string flags=$arg3
mode=$arg4' > kprobe_events
bash-166 [000] ...1. 360.195367: myprobe: (do_sys_open+0x0/0x84)
dfd=0xffffffffffffff9c filename=(fault) flags=0x8241 mode=0x1b6
bash-166 [000] ...1. 360.219369: myprobe: (do_sys_open+0x0/0x84)
dfd=0xffffffffffffff9c filename=(fault) flags=0x8241 mode=0x1b6
bash-191 [000] ...1. 360.378827: myprobe: (do_sys_open+0x0/0x84)
dfd=0xffffffffffffff9c filename=(fault) flags=0x98800 mode=0x0
As riscv do not select ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE,
the +0($arg2) addr is processed as a kernel address though it is a
userspace address, cause the above filename=(fault) print. So select
ARCH_HAS_NON_OVERLAPPING_ADDRESS_SPACE to avoid the issue, after that the
kprobe trace is ok as below:
bash-166 [000] ...1. 96.767641: myprobe: (do_sys_open+0x0/0x84)
dfd=0xffffffffffffff9c filename="/dev/null" flags=0x8241 mode=0x1b6
bash-166 [000] ...1. 96.793751: myprobe: (do_sys_open+0x0/0x84)
dfd=0xffffffffffffff9c filename="/dev/null" flags=0x8241 mode=0x1b6
bash-177 [000] ...1. 96.962354: myprobe: (do_sys_open+0x0/0x84)
dfd=0xffffffffffffff9c filename="/sys/kernel/debug/tracing/events/kprobes/"
flags=0x98800 mode=0x0
Signed-off-by: Ruan Jinjie <ruanjinjie@huawei.com>
Acked-by: Björn Töpel <bjorn@rivosinc.com>
Fixes: 0ebeea8ca8 ("bpf: Restrict bpf_probe_read{, str}() only to archs where they work")
Link: https://lore.kernel.org/r/20230504072910.3742842-1-ruanjinjie@huawei.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
This update contains:
- Propagate unlinked inode list corruption back up to log recovery (regression
fix).
- improve corruption detection for AGFL entries, AGFL indexes and XEFI extents
(syzkaller fuzzer oops report).
- Avoid double perag reference release (regression fix).
- Improve extent merging detection in scrub (regression fix).
- Fix a new undefined high bit shift (regression fix).
- Fix for AGF vs inode cluster buffer deadlock (regression fix).
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Merge tag 'xfs-6.4-rc5-fixes' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Dave Chinner:
"These are a set of regression fixes discovered on recent kernels. I
was hoping to send this to you a week and half ago, but events out of
my control delayed finalising the changes until early this week.
Whilst the diffstat looks large for this stage of the merge window, a
large chunk of it comes from moving the guts of one function from one
file to another i.e. it's the same code, it is just run in a different
context where it is safe to hold a specific lock. Otherwise the
individual changes are relatively small and straigtht forward.
Summary:
- Propagate unlinked inode list corruption back up to log recovery
(regression fix)
- improve corruption detection for AGFL entries, AGFL indexes and
XEFI extents (syzkaller fuzzer oops report)
- Avoid double perag reference release (regression fix)
- Improve extent merging detection in scrub (regression fix)
- Fix a new undefined high bit shift (regression fix)
- Fix for AGF vs inode cluster buffer deadlock (regression fix)"
* tag 'xfs-6.4-rc5-fixes' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
xfs: collect errors from inodegc for unlinked inode recovery
xfs: validate block number being freed before adding to xefi
xfs: validity check agbnos on the AGFL
xfs: fix agf/agfl verification on v4 filesystems
xfs: fix double xfs_perag_rele() in xfs_filestream_pick_ag()
xfs: fix broken logic when detecting mergeable bmap records
xfs: Fix undefined behavior of shift into sign bit
xfs: fix AGF vs inode cluster buffer deadlock
xfs: defered work could create precommits
xfs: restore allocation trylock iteration
xfs: buffer pins need to hold a buffer reference
If pf is NULL in ice_gnss_read() then it will be dereferenced
in the error path by a call to dev_dbg(ice_pf_to_dev(pf), ...).
Avoid this by simply returning in this case.
If logging is desired an alternate approach might be to
use pr_err() before returning.
Flagged by Smatch as:
.../ice_gnss.c:196 ice_gnss_read() error: we previously assumed 'pf' could be null (see line 131)
Fixes: 43113ff734 ("ice: add TTY for GNSS module for E810T device")
Signed-off-by: Simon Horman <horms@kernel.org>
Reviewed-by: Tariq Toukan <tariqt@nvidia.com>
Tested-by: Sunitha Mekala <sunithax.d.mekala@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
ext4_xattr_block_set() relies on its caller to call dquot_initialize()
on the inode. To assure that this has happened there are WARN_ON
checks. Unfortunately, this is subject to false positives if there is
an antagonist thread which is flipping the file system at high rates
between r/o and rw. So only do the check if EXT4_XATTR_DEBUG is
enabled.
Link: https://lore.kernel.org/r/20230608044056.GA1418535@mit.edu
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
[BUG]
After the recent scrub rework introduced in commit e02ee89baa ("btrfs:
scrub: switch scrub_simple_mirror() to scrub_stripe infrastructure"),
btrfs scrub no longer reports repaired errors any more:
# mkfs.btrfs -f $dev -d DUP
# mount $dev $mnt
# xfs_io -f -d -c "pwrite -b 64K -S 0xaa 0 64" $mnt/file
# umount $dev
# xfs_io -f -c "pwrite -S 0xff $phy1 64K" $dev # Corrupt the first mirror
# mount $dev $mnt
# btrfs scrub start -BR $mnt
scrub done for 725e7cb7-8a4a-4c77-9f2a-86943619e218
Scrub started: Tue Jun 6 14:56:50 2023
Status: finished
Duration: 0:00:00
data_extents_scrubbed: 2
tree_extents_scrubbed: 18
data_bytes_scrubbed: 131072
tree_bytes_scrubbed: 294912
read_errors: 0
csum_errors: 0 <<< No errors here
verify_errors: 0
[...]
uncorrectable_errors: 0
unverified_errors: 0
corrected_errors: 16 <<< Only corrected errors
last_physical: 2723151872
This can confuse btrfs-progs, as it relies on the csum_errors to
determine if there is anything wrong.
While on v6.3.x kernels, the report is different:
csum_errors: 16 <<<
verify_errors: 0
[...]
uncorrectable_errors: 0
unverified_errors: 0
corrected_errors: 16 <<<
[CAUSE]
In the reworked scrub, we update the scrub progress inside
scrub_stripe_report_errors(), using various bitmaps to update the
result.
For example for csum_errors, we use bitmap_weight() of
stripe->csum_error_bitmap.
Unfortunately at that stage, all error bitmaps (except
init_error_bitmap) are the result of the latest repair attempt, thus if
the stripe is fully repaired, those error bitmaps will all be empty,
resulting the above output mismatch.
To fix this, record the number of errors into stripe->init_nr_*_errors.
Since we don't really care about where those errors are, we only need to
record the number of errors.
Then in scrub_stripe_report_errors(), use those initial numbers to
update the progress other than using the latest error bitmaps.
Fixes: e02ee89baa ("btrfs: scrub: switch scrub_simple_mirror() to scrub_stripe infrastructure")
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
[BUG]
With recent scrub rework, the scrub operation no longer respects the
read-only flag passed by "-r" option of "btrfs scrub start" command.
# mkfs.btrfs -f -d raid1 $dev1 $dev2
# mount $dev1 $mnt
# xfs_io -f -d -c "pwrite -b 128K -S 0xaa 0 128k" $mnt/file
# sync
# xfs_io -c "pwrite -S 0xff $phy1 64k" $dev1
# xfs_io -c "pwrite -S 0xff $((phy2 + 65536)) 64k" $dev2
# mount $dev1 $mnt -o ro
# btrfs scrub start -BrRd $mnt
Scrub device $dev1 (id 1) done
Scrub started: Tue Jun 6 09:59:14 2023
Status: finished
Duration: 0:00:00
[...]
corrected_errors: 16 <<< Still has corrupted sectors
last_physical: 1372585984
Scrub device $dev2 (id 2) done
Scrub started: Tue Jun 6 09:59:14 2023
Status: finished
Duration: 0:00:00
[...]
corrected_errors: 16 <<< Still has corrupted sectors
last_physical: 1351614464
# btrfs scrub start -BrRd $mnt
Scrub device $dev1 (id 1) done
Scrub started: Tue Jun 6 10:00:17 2023
Status: finished
Duration: 0:00:00
[...]
corrected_errors: 0 <<< No more errors
last_physical: 1372585984
Scrub device $dev2 (id 2) done
[...]
corrected_errors: 0 <<< No more errors
last_physical: 1372585984
[CAUSE]
In the newly reworked scrub code, repair is always submitted no matter
if we're doing a read-only scrub.
[FIX]
Fix it by skipping the write submission if the scrub is a read-only one.
Unfortunately for the report part, even for a read-only scrub we will
still report it as corrected errors, as we know it's repairable, even we
won't really submit the write.
Fixes: e02ee89baa ("btrfs: scrub: switch scrub_simple_mirror() to scrub_stripe infrastructure")
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
The current path that skips allocating the slave runtime does not clear
the alloc_slave_rt flag, this is clearly incorrect. Add the missing
clear, so the runtime won't be erroneously cleaned up.
Fixes: f3016b891c ("soundwire: stream: sdw_stream_add_ functions can be called multiple times")
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230602101140.2040141-1-ckeepax@opensource.cirrus.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
