mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/
synced 2026-11-10 20:48:12 +00:00
1,464,522 commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Sven Eckelmann
|
7a581d9aab |
batman-adv: tt: prevent TVLV OOB check overflow
A TT unicast TVLV contains the number of VLANs stored in it. This number is
an u16 and gets multiplied by the size of the struct
batadv_tvlv_tt_vlan_data (8 bytes). The size can therefore overflow the u16
used to store the tt_vlan_len. All additional safety checks to prevent
out-of-bounds access of the TVLV buffer are invalid due to this overflow.
Using size_t prevents this overflow and ensures that the safety checks
compare against the actual buffer requirements.
Cc: stable@vger.kernel.org
Fixes:
|
||
|
Sven Eckelmann
|
27c7d40008 |
batman-adv: tt: avoid request storms during pending request
batadv_send_tt_request() allocates a tt_req_node when none exists for the
destination originator node. This should prevent that a multiple TT
requests are send at the same time to an originator.
But if allocation of the send buffer failed, this request must be cleaned
up again. But indicator for such a failure is "ret == false". But the
actual implementation is checking for "ret == true".
The check must be inverted to not loose the information about the TT
request directly after it was attempted to be sent out. This should avoid
potential request storms.
Cc: stable@vger.kernel.org
Fixes:
|
||
|
Sven Eckelmann
|
8669a550c7 |
batman-adv: clean untagged VLAN on netdev registration failure
When an mesh interface is registered, it creates an untagged struct
batadv_meshif_vlan on top of it via the NETDEV_REGISTER notifier. But in
this process, another receiver of this notification can veto the
registration. The netdev registration will be aborted because of this veto.
The register_netdevice() call will try to clean up the net_device using
unregister_netdevice_queue() - which only uses the .priv_destructor to
free private resources. In this situation, .dellink will not be called.
The cleanup of the untagged batadv_meshif_vlan must thefore be done in the
destructor to avoid a leak of this object.
Cc: stable@vger.kernel.org
Fixes:
|
||
Chuck Lever
|
92ea163c77 |
NFSD: Prevent post-shutdown use-after-free in NFSD_CMD_UNLOCK_FILESYSTEM
The NFSD_CMD_UNLOCK_FILESYSTEM netlink command runs
nfsd4_cancel_copy_by_sb() before nfsd_mutex is held and before
nn->nfsd_serv is confirmed set, the same pre-mutex ordering the procfs
unlock_filesystem path carried. Once nfsd has shut down,
nfs4_state_destroy_net() has freed nn->conf_id_hashtbl but left the
pointer intact, so the cancel helper iterates freed slab memory as an
array of struct list_head and then dereferences a bogus nfs4_client
when it takes clp->async_lock. A local administrator holding
CAP_SYS_ADMIN can reach this use-after-free by stopping the server and
then issuing the command.
Move the async COPY cancel into the nfsd_mutex section, after
nn->nfsd_serv is confirmed, so every NFSv4 state-table walker on this
path observes a running server. Async copies exist only while the
server runs, so gating the cancel on nn->nfsd_serv loses nothing.
Fixes:
|
||
Mehdi Hassan
|
5b4d8e11ba |
smb: client: refactor cifs_revalidate_mapping() to use clear_and_wake_up_bit()
In the `skip_invalidate:` path under `cifs_revalidate_mapping()`, the
sequence of calls:
clear_bit_unlock();
smp_mb__after_atomic();
wake_up_bit();
can be replaced exactly by `clear_and_wake_up_bit()`.
The `clear_and_wake_up_bit()` helper function was introduced in
'commit
|
||
Linus Torvalds
|
8cdeaa50ea | Linux 7.2-rc2 v7.2-rc2 | ||
Eric Biggers
|
1002500f54 |
lib/crypto: md5: Remove support for md5_mod_init_arch()
No definitions of md5_mod_init_arch() remain, so remove the code that handles it. Link: https://patch.msgid.link/20260629032552.26100-1-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org> |
||
|
Linus Torvalds
|
f105f3631d |
- Prevent OOB access in the resctrl code while offlining
CPUs when Intel SNC (Sub-NUMA Clustering) is enabled
(Reinette Chatre)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
-----BEGIN PGP SIGNATURE-----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=mae/
-----END PGP SIGNATURE-----
Merge tag 'x86-urgent-2026-07-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 fix from Ingo Molnar:
- Prevent OOB access in the resctrl code while offlining
CPUs when Intel SNC (Sub-NUMA Clustering) is enabled
(Reinette Chatre)
* tag 'x86-urgent-2026-07-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86,fs/resctrl: Prevent out-of-bounds access while offlining CPU when SNC enabled
|
||
|
Linus Torvalds
|
c10dc5c03e |
Misc perf events fixes:
- Fix a perf_event_attr::remove_on_exec bug for group
events (Taeyang Lee)
- Fix uprobes CALL emulation interaction with shadow stacks,
and add a testcase for this (David Windsor)
- Fix uprobes unregister bug (Jiri Olsa)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
-----BEGIN PGP SIGNATURE-----
iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmpKCX8RHG1pbmdvQGtl
cm5lbC5vcmcACgkQEnMQ0APhK1hwJRAAne1HniwuV9PV2GQHNKipeKV320tod2iR
WY9yy9ez5WJbPttS7Fy28NobQKxuTanNWnAJqqM3TJF0tPPSrrYqkhAGrpEb2ab0
G7gl4KlrO//5kKTZnnI86t/quSV5BDt00UUdMBFp+hbNYXNul5/AeUxqMhNoGqB6
DpJHrV+7kNQZ4I7tjatYWL11hZHpEhrx4QWLUsnd+nDwddpmdsRNXVZwpGh9+Dh4
+XXcgLD7M8FqNFN3GCVfhJKO8x8HRaBWv3FHeGqbCUL9k5viWcn+N91IbrcPVat1
HBk0JDtpLK286WHLFy7uROafCA59AlYp5DX7mobXi0VF1FdMqPtjaXEsZM7Ng/P5
/tpbV5P4irrUnMSCEDSDzqZJWXbcBSqCJ9p6z5/Tjzo3VegHyrXe29wjVoqvXjLx
og/9OnPZv/2QEsE37rBRwNC889ihFMUDZh3T+uUc1YKUEwYWFXwtUECTg+0Oi+lL
mLTdK05j/6NmVkcY77mFjQfTMFAZeD78g6cPY3yDHiHRFtxPOIhknCKBeLD5BjXD
tz08x3MN0ItVEBXfuKAlkb1KPhHy8x02IrpdfVojoQ7lUBRH/JqLvnSGgvVsRM+0
v9D3N9BAuB3s8DmxEdh0wyRzISl6jzBHJDJ83+uWSfZWLlEW+RVn9NbH2ubNU/jt
FO3U81r1MvE=
=Mb4z
-----END PGP SIGNATURE-----
Merge tag 'perf-urgent-2026-07-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf events fixes from Ingo Molnar:
- Fix a perf_event_attr::remove_on_exec bug for group events
(Taeyang Lee)
- Fix uprobes CALL emulation interaction with shadow stacks, and
add a testcase for this (David Windsor)
- Fix uprobes unregister bug (Jiri Olsa)
* tag 'perf-urgent-2026-07-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
uprobes/x86: Use proper mm_struct in __in_uprobe_trampoline
selftests/x86: Add shadow stack uprobe CALL test
x86/uprobes: Keep shadow stack in sync for emulated CALLs
perf/core: Detach event groups during remove_on_exec
|
||
|
Linus Torvalds
|
fe5881ed72 |
- Fix a futex-requeue deadlock detection regression
(Thomas Gleixner) Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmpKCDcRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1jyeA//UjX1T39xy3suH0on24bO4aiMe9I/+rSD cSYRE7di8o/B6W8emvnrL1qumt18fO2wVbV84WpVJEznuphoVRR8CveOcISyBlmt Ea73S80RX5hDyJAkCSY4ttAFFyULTPE+gvTrP2lagNRV2S0K+80lqtZxRIiL7IYU ElVbCoeMUm+5mOFQ8t6KdkNxNJudceQEO7KY0xu3k3qUL1CDFWO6XYY3cdhfYirO z2A4k4nFp9i+FrvJxPG2BF6KboNbXukdBYWIecFdoTHK2r2n81ZFBodlQFYuB3/o g6Gv73rcCr2mKxrMiKO5LUBoxsbLbbchxF4dZROktf8h54v/qwcHWLSZDDerhXyX zk92iw//N71HO+3ktJdmfXxN2sk0ZZy2Yt5bgdMGvTZIoSbwklIEMn67mlQQqB5X bKsZWWgiH/tN7z/JN6JQZ2+J1F7lTwrx/bJ4iriy79iIjPAYbne1OSM9j1/ycWgN 9u1fpcd3lcK4W3A3DUE1AJnmGw+NwDPHipoD5lk5wAdQGSpeIH712kKB05eIonIa l8dF7ZDgKVDSLDfcqoHfbKGPxm06NZuSc4VL9+YSftV7YeRhpDPP6gti/aaYBtew 0Bz5uBR9Sptvi+GsHNiblkEsNVkS5SSbvs0wkgxLHd22nVRO9bi1SdMSWLeI7PDn LzJpjnA+5Cs= =JNeN -----END PGP SIGNATURE----- Merge tag 'locking-urgent-2026-07-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull futex fix from Ingo Molnar: - Fix a futex-requeue deadlock detection regression (Thomas Gleixner) * tag 'locking-urgent-2026-07-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: futex/requeue: Revert "Prevent NULL pointer dereference in remove_waiter() on self-deadlock"" |
||
|
Linus Torvalds
|
610533cb3b |
Misc irqchip driver fixes:
- Fix a resource leak in the RISC-V imsic-early driver
(Haoxiang Li)
- Fix an OF node reference leak in the ARM gic-v3-its driver
(Yuho Choi)
- Fix a dangling handler function on module removal bug in
the TS-4800 ARM board irqchip driver (Qingshuang Fu)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
-----BEGIN PGP SIGNATURE-----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=aWLS
-----END PGP SIGNATURE-----
Merge tag 'irq-urgent-2026-07-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq fixes from Ingo Molnar:
"Misc irqchip driver fixes:
- Fix a resource leak in the RISC-V imsic-early driver (Haoxiang Li)
- Fix an OF node reference leak in the ARM gic-v3-its driver (Yuho
Choi)
- Fix a dangling handler function on module removal bug in the
TS-4800 ARM board irqchip driver (Qingshuang Fu)"
* tag 'irq-urgent-2026-07-05' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip/ts4800: Fix missing chained handler cleanup on remove
irqchip/gic-v3-its: Fix OF node reference leak
irqchip/irq-riscv-imsic-early: Fix fwnode leak on state setup failure
|
||
|
Linus Torvalds
|
216a8b2179 |
sound fixes for 7.2-rc2
A standard set of driver-specific fixes and quirks accumulated since the merge window: ASoC: - SOF: Sanity check to prevent OOB reads - rsnd: Fix clock leak and double-disable issues with PM - tas675x: Misc fixes for register fields, etc - lpass-va-macro: Correct codec version for Qualcomm SC7280 - amd-yc: DMIC quirk for Alienware m15 R7 AMD Others: - us144mkii: Fix a UAF on disconnect and anchor list corruption - HD-audio: Realtek quirks for HP models -----BEGIN PGP SIGNATURE----- iQJCBAABCAAsFiEEIXTw5fNLNI7mMiVaLtJE4w1nLE8FAmpKCqgOHHRpd2FpQHN1 c2UuZGUACgkQLtJE4w1nLE+lgBAAk83zPbT+2y7L7GewxT2QTwOj5WMudl6q9RBp sDfT8sabkVGs68IoWBVijn6H8n7Jy9V9OVqm+I1j/53mcQl4haLiW+Uk0hcOlN1N UOySZLQusv+UOM7eVOpfvfb+rdx0MiGOr3NZeFD5tyIfhcMjhJ0NRDFHUDu1W3YU 7BRCOqX1xchsYAnGEdI/otb1d2rEHlg4bRUYMqanfOO1mAayfd2kw3RkVlEF4dW9 +8SoVdxWNOueIuq1WWU3DI/nE5Lq0la3ZsHulKTVkfKW3wlBsFhbk5tbWPBC123o odz71gpoM1wNM10ANWniJoZ3FlUSvKc2N3gJfKgYVp/EWSzFAp01BYpqm4JA8Iq7 EAX7vNj+4wA4HMZYg20vGaj9dekZ15jrro9Xy8sg1+8TSC377xIpXBo1WA470YrS /B1UCvhhaYmao0tTTsChaDEcBI0OWgS+OagWDijPz8ASwskNOczVeBhE4HxgHidd eq4IqXcK+qakTcNc6d8AdFdOog8PekUqE+ZaSPkrW7P/QIYKgWEAXfpu0f2IaK8k 3S15xQAg4dvkGAz4+vOWvZfJSP1P1xRabuSNftEgZk8UvlAoIwMZSuoB7uazt61n 4La6BdPHiY//qmco9rV310YHYQE6uISFEPgs0xxKAHWYeTNRfhACDClm8U905Jo2 LZH9c5g= =eXcj -----END PGP SIGNATURE----- Merge tag 'sound-7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound Pull sound fixes from Takashi Iwai: "A standard set of driver-specific fixes and quirks accumulated since the merge window: ASoC: - SOF: Sanity check to prevent OOB reads - rsnd: Fix clock leak and double-disable issues with PM - tas675x: Misc fixes for register fields, etc - lpass-va-macro: Correct codec version for Qualcomm SC7280 - amd-yc: DMIC quirk for Alienware m15 R7 AMD Others: - us144mkii: Fix a UAF on disconnect and anchor list corruption - HD-audio: Realtek quirks for HP models" * tag 'sound-7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: ASoC: rsnd: src: Add missing scu_supply clock to suspend/resume Documentation: sound: tas675x: Fix temperature range and impedance documentation ASoC: codecs: tas675x: Fix CHx temperature range register bit fields ASoC: codecs: tas675x: use READ_ONCE for params to be used concurrently ASoC: rsnd: adg: make rsnd_adg_clk_control() idempotent ASoC: SOF: validate probe info element counts ALSA: usx2y: us144mkii: fix work UAF on disconnect ASoC: amd: yc: Add Alienware m15 R7 AMD to DMIC quirk table ALSA: hda/realtek: Add quirk for HP Victus 16-e0xxx (88EE) to enable mute LED MAINTAINERS: ASoC: SOF: add AMD reviewer for Sound Open Firmware ASoC: codecs: lpass-va-macro: Fix LPASS Codec Version for SC7280 ALSA: us144mkii: capture_urb_complete: redundant usb_anchor_urb corrupts anchor list on each resubmission |
||
|
Linus Torvalds
|
9c9330c764 |
spi: Fixes for v7.2
A small set of fixes that came in since -rc1, we have one core fix for shutting down target mode properly if the system suspends while it's running plus a small set of fairly unremarkable device specific fixes. There's also a couple of pure DT binding changes for Renesas SoCs, the power domains one allows some SoCs to be correctly described with existing code. -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEEreZoqmdXGLWf4p/qJNaLcl1Uh9AFAmpKRNUACgkQJNaLcl1U h9DGTAf9GNwul6yPo0ybe0uwbkuymsUhkf6oWz8qVPY4nFiQfP+pGiFae7gJrST7 gCeyTlqPT2549MpxgsJwxCdsAaX4VuJbdwY1U8OVeg5VCtVmv/geDweJBXax5uHR EKayi1W8wGrdt+xReDvbcqS9T+kwyRWxrrWRi7HIz7P4Lbziq8naQaPQ6LODnHnT h5/M9nr4VjQh+kSHIIOyHlN10hQR256XRHoZY6e7yQmJfzxayN9NTw7MmIw7kE3P ZztQT8VcqaT4hlsJYZKLC9anSeWz03aTnJ3lPpKy935Od1PktElGEV6SLgbX/hEZ QI6rjVNbe3UT5fiy+PjMDSl67II+DA== =wCwg -----END PGP SIGNATURE----- Merge tag 'spi-fix-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi Pull spi fixes from Mark Brown: "A small set of fixes that came in since -rc1, we have one core fix for shutting down target mode properly if the system suspends while it's running plus a small set of fairly unremarkable device specific fixes. There's also a couple of pure DT binding changes for Renesas SoCs, the power domains one allows some SoCs to be correctly described with existing code" * tag 'spi-fix-v7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: spi: rzv2h-rspi: Fix DMA transfer error handling for signal interruption spi: dt-bindings: snps,dw-apb-ssi: add 'power-domains' property spi: dt-bindings: snps,dw-apb-ssi: drop superfluous RZ/N1 entry spi: dw: use the correct error msg if request_irq() fails spi: dw: fix first spi transfer with dma always fallback to PIO spi: core: Abort active target transfer on controller suspend spi: sh-msiof: abort transfers when reset times out |
||
Aleksandrova Alyona
|
3cda0dfe8c |
RDMA/irdma: Prevent overflows in memory contiguity checks
irdma_check_mem_contiguous() and irdma_check_mr_contiguous() verify that
PBL entries describe physically contiguous memory ranges.
Both functions calculate byte offsets using 32-bit operands. For example,
with 4 KiB pages, pg_size * pg_idx overflows 32-bit arithmetic when
pg_idx reaches 1048576. In the level-2 check, PBLE_PER_PAGE is 512, so
i * pg_size * PBLE_PER_PAGE overflows when i reaches 2048.
These values are reachable in the driver. For MRs, palloc->total_cnt
comes from iwmr->page_cnt, which is calculated by
ib_umem_num_dma_blocks(). The MR size is limited by IRDMA_MAX_MR_SIZE,
so a 4 GiB MR with 4 KiB pages can reach page_cnt of 1048576. PBLE
resources do not exclude this value either: for gen3, the limit is based
on avail_sds * MAX_PBLE_PER_SD, and MAX_PBLE_PER_SD is 0x40000, so 4 SDs
are enough for 1048576 PBLEs.
Cast one operand to u64 before the multiplications so that the offset
calculations are performed in 64-bit arithmetic.
Found by Linux Verification Center (linuxtesting.org) with SVACE.
Fixes:
|
||
Pengpeng Hou
|
aba30af07d |
ALSA: usb-audio: caiaq: validate EP1 reply lengths
usb_ep1_command_reply_dispatch() uses buf[0] as a command byte and then reads command-specific fixed items from the same URB buffer. Several paths use buf + 1, buf[1], buf[2], or buf + 3 without first proving that urb->actual_length contains those bytes. Add per-command length checks, use a payload length derived from the bytes after the command byte for the control-state copy, and reject short analog input payloads before the input helper reads fixed offsets from the EP1 reply. Signed-off-by: Pengpeng Hou <pengpeng@iscas.ac.cn> Link: https://patch.msgid.link/20260705084601.56400-1-pengpeng@iscas.ac.cn Signed-off-by: Takashi Iwai <tiwai@suse.de> |
||
Daniel Schaefer
|
742a87fa54 |
ALSA: hda/realtek: add quirk for Framework F111:0010
Similar to commit
|
||
Thomas Gleixner
|
920f893f73 |
posix-cpu-timers: Prevent UAF caused by non-leader exec() race
Wongi and Jungwoo decoded and reported a non-leader exec() related race
which can result in an UAF:
sys_timer_delete() exec()
posix_cpu_timer_del()
// Observes old leader
p = pid_task(pid, pid_type); de_thread()
switch_leader();
release_task(old_leader)
__exit_signal(old_leader)
sighand = lock(old_leader, sighand);
posix_cpu_timers*_exit();
sighand = lock_task_sighand(p) unhash_task(old_leader);
sh = lock(p, sighand) old_leader->sighand = NULL;
unlock(sighand);
(p->sighand == NULL)
unlock(sh)
return NULL;
// Returns without action
if(!sighand)
return 0;
free_posix_timer();
This is "harmless" unless the deleted timer was armed and enqueued in
p->signal because on exec() a TGID targeted timer is inherited.
As sys_timer_delete() freed the underlying posix timer object
run_posix_cpu_timers() or any timerqueue related add/delete operations on
other timers will access the freed object's timerqueue node, which results
in an UAF.
There is a similar problem vs. posix_cpu_timer_set(). For regular posix
timers it just transiently returns -ESRCH to user space, but for the use
case in do_cpu_nanosleep() it's the same UAF just that the k_itimer is
allocated on the stack.
Also posix_cpu_timer_rearm() fails to rearm the timer, which means it stops
to expire.
While debating solutions Frederic pointed out another problem:
posix_cpu_timer_del(tmr)
__exit_signal(p)
posix_cpu_timers*_exit(p);
unhash_task(p);
p->sighand = NULL;
sh = lock_task_sighand(p)
sighand = p->sighand;
if (!sighand)
return NULL;
lock(sighand);
if (!sh)
WARN_ON_ONCE(timer_queued(tmr));
On weakly ordered architectures it is not guaranteed that
posix_cpu_timer_del() will observe the stores in posix_cpu_timers*_exit()
when p->sighand is observed as NULL, which means the WARN() can be a false
positive.
Solve these issues by:
1) Changing the store in __exit_signal() to smp_store_release().
2) Adding a smp_acquire__after_ctrl_dep() into the !sighand path
of lock_task_sighand().
3) Creating a helper function for looking up the task and locking sighand
which does not return when sighand == NULL. Instead it retries the
task lookup and only if that fails it gives up.
4) Using that helper in the three affected functions.
#1/#2 ensures that the reader side which observes sighand == NULL also
observes all preceeding stores, i.e. the stores in posix_cpu_timers*_exit()
and the ones in unhash_task().
#3 ensures that the above described non-leader exec() situation is handled
gracefully. When the task lookup returns the old leader, but sighand ==
NULL then it retries. In the non-leader exec() case the subsequent task
lookup will observe the new leader due to #1/#2. In normal exit() scenarios
the subsequent lookup fails.
When the task lookup fails, the function also checks whether the timer is
still enqueued and issues a warning if that's the case. Unfortunately there
is nothing which can be done about it, but as the task is already not
longer visible the timer should not be accessed anymore. This check also
requires memory ordering, which is not provided when the first lookup
fails. To achieve that the check is preceeded by a smp_rmb() which pairs
with the smp_wmb() in write_seqlock() in __exit_signal(). That ensures that
the stores in posix_cpu_timers*_exit() are visible.
The history of the non-leader exec() issue goes back to the early days of
posix CPU timers, which stored a pointer to the group leader task in the
timer. That obviously fails when a non-leader exec() switches the leader.
commit
|
||
Malaya Kumar Rout
|
cb89f0c1ae |
selftests/alsa: Fix memory leak in find_controls error path
In find_controls(), card_data is allocated with malloc() but when
snd_ctl_open_lconf() fails, the code jumps to next_card without
freeing the allocated memory. This results in a memory leak for
each card where snd_ctl_open_lconf() fails.
Add free(card_data) before goto next_card to ensure proper cleanup
of the allocated memory in the error path.
Fixes:
|
||
Jens Emil Schulz Østergaard
|
d7a8d500d7 |
net: microchip: vcap: fix races on the shared Super VCAP block
The VCAP instances on a chip are not independent, yet they are locked
independently. On sparx5 and lan969x the IS0 and IS2 instances are
backed by the same Super VCAP hardware block and share its cache and
command registers: every access drives the shared VCAP_SUPER_CTRL
register and moves data through the shared cache registers.
Accessing one instance therefore races with accessing another. The
per-instance admin->lock cannot prevent this, as each instance takes a
different lock.
The locking issue is mostly disguised by the fact that the core usage of
the vcap api runs under rtnl. However, the full rule dump in debugfs
decodes rules straight from hardware (a READ command followed by a cache
read) and runs outside rtnl, so it races a concurrent tc-flower rule
write to another Super VCAP instance.
Besides corrupting the dump, the read repopulates the shared cache
between the writers cache fill and its write command, so the writer
commits the wrong data and corrupts the hardware entry.
Introduce vcap_lock() and vcap_unlock() helpers and route every rule
lock site in the VCAP API and its debugfs code through them. Replace the
per-instance admin->lock with a single mutex in struct vcap_control that
serializes access to all instances. The helpers reach it through a new
admin->vctrl back-pointer, and the clients initialise and destroy the
control lock instead of a per-instance one.
No path holds more than one instance lock, so collapsing them onto a
single mutex cannot self-deadlock.
Fixes:
|
||
Shuangpeng Bai
|
660667cd40 |
llc: fix SAP refcount leak in llc_ui_autobind()
llc_ui_autobind() opens a SAP after choosing a dynamic LSAP.
llc_sap_open() returns a reference owned by the caller, and
llc_sap_add_socket() takes a second reference for the socket's
membership in the SAP hash tables.
llc_ui_bind() drops the caller's reference after adding the socket,
but llc_ui_autobind() keeps it. When the socket is closed,
llc_sap_remove_socket() releases only the socket reference, leaving
the SAP on llc_sap_list with sk_count == 0.
This is user-visible because repeated autobind and close cycles can consume
all dynamic SAP values and make later autobinds fail with -EUSERS.
Drop the caller's reference after a successful autobind, matching
llc_ui_bind()'s ownership model.
Fixes:
|
||
Vidhu Sarwal
|
aa411adc6c |
iio: light: al3010: fix incorrect scale for the highest gain range
al3010_scales[] encodes the highest gain range as {0, 1187200}.
For IIO_VAL_INT_PLUS_MICRO, the fractional part must be less than
1000000, so the scale 1.1872 should instead be represented as
{ 1, 187200 }.
Since write_raw() compares the value from userspace against this
table, writing the advertised 1.1872 scale never matches the malformed
entry and returns -EINVAL. As a result, the highest gain range cannot
be selected. Reading the scale in that state also reports the malformed
value.
Fixes:
|
||
Andy Shevchenko
|
a9f41809bf |
iio: adc: nxp-sar-adc: Fix the delay calculation in nxp_sar_adc_wait_for()
The original code was using ndelay() twice. In one case the delay is calculated as 1/3 of ADC clock and in the other as 80 ADC clocks. But according to the comments in all cases it should be a multiplier of the ADC clock, and not a fraction of it. Inadvertently nxp_sar_adc_wait_for() takes the wrong case and spread it over the code make it wrong in all places. Fix this by modifying a helper to correctly use the multiplier. Fixes: |
||
Stepan Ionichev
|
a00ffd1567 |
iio: light: tsl2591: return actual error from probe IRQ failure
When devm_request_threaded_irq() fails, probe logs the error and
then returns -EINVAL, dropping the real error code and breaking the
deferred-probe flow for -EPROBE_DEFER.
Return ret directly; the IRQ subsystem already prints on failure.
Fixes:
|
||
Jean-Baptiste Maneyrol
|
affe3f077d |
iio: imu: inv_icm42600: fix timestamping by limiting FIFO reading
Timestamps are made by measuring the chip clock using the watermark
interrupts. If we read more than watermark samples as done today, we
are reducing the period between interrupts and distort the time
measurement. Fix that by reading only watermark samples in the
interrupt case.
Fixes:
|
||
|
Linus Torvalds
|
7404ce5163 |
s390 updates for 7.2-rc2
- Fix PKEY_VERIFYPROTK ioctl key type handling by removing the generic key-length based type check with its wrong bit-size calculation, and leaving protected key verification to the pkey handler - Fix monwriter buffer reuse by rejecting records that change the data length, preventing out of bounds user copy into the kernel buffer -----BEGIN PGP SIGNATURE----- iQEzBAABCgAdFiEE3QHqV+H2a8xAv27vjYWKoQLXFBgFAmpJMw4ACgkQjYWKoQLX FBg7mwf/V8AKr7uPTvCMEvPUrgFPz1NWE0Eg4UZb5WYoToP6HwMMJpkkBcuWDcpT L7UVkXczlzhd4QqjftmVSVd8ea3MT+IZQ8W6TVEM+zgu3kYuLT0JC2POUTwIS5D+ boYruqFfH4Cn2DRacOEV8dRfHNVyrZ4MdWEQnHTtJ0n6dxT1O93aH4YfAPhRrT57 LEf4PnnWTza/xWF5Huyk5pXmNjrwsF63djwh7YSHIOxMfG4mK3h/cQzu/sEwKMWs Q5wPqhl8U20WG8fc8bi+VpfEI/v7ajjZm7mIYC09t2ymVSqz85wzaDk9igeSvv7i bsy26udNG4XjmwFNbJSz8JOyaph8LA== =AWqj -----END PGP SIGNATURE----- Merge tag 's390-7.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux Pull s390 fixes from Vasily Gorbik: - Fix PKEY_VERIFYPROTK ioctl key type handling by removing the generic key-length based type check with its wrong bit-size calculation, and leaving protected key verification to the pkey handler - Fix monwriter buffer reuse by rejecting records that change the data length, preventing out of bounds user copy into the kernel buffer * tag 's390-7.2-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: s390/monwriter: Reject buffer reuse with different data length pkey: Move keytype check from pkey api to handler |
||
|
Linus Torvalds
|
410430b616 |
collected fixes for 7.2
-----BEGIN PGP SIGNATURE----- iQJOBAABCAA4FiEEbt46xwy6kEcDOXoUeZbBVTGwZHAFAmpIu3UaHHRzYm9nZW5k QGFscGhhLmZyYW5rZW4uZGUACgkQeZbBVTGwZHC8MRAAmzNvYJhYC+4wnvzTv3q0 kzsVgAkQaYQT5mwRjRBjZ4dX396s+zvFtXKJ3/DBZ/cluBOAOCf9sXCpVbKHKCq3 y2n8kxTMT1Z4w1blbpK0BXLbJec2Kij5tnqLewWfg+Q08sodmBaahX0/41VBjLkl ldvtOaWwrW1vKY/67WS9GOA8W+YcmuMIPZFvEXHxWZ/kEGo0Te5jPD595FF5LENe G1c9W6tmlYuQnbwJHbTAnpLhVzeDuXVbVf6zpvnqqakAYEhA15f/FO1AiFLIlCUT Eimbc+MXpYmOfN1I+pDCxt6BMQDZ4jFhfmbtonFUnmRZ4B7nB4OlUHjz1gK8ipMZ yWu2NQRXXsb5ABJY2MWFvQEkMiyMHWOmjvtT8Ptfj7mnztSuXZLTXTbECz3OBIXr KqHK/9j2CLVLs8/RorDLh0VGuPJ2TtVryMGMQ5SSV3KvkLPrDLBgpxL5z3uPLoC6 Vrh13Zb/TDLubAiKvIepbB31sWECLS12d+btvKfFBChIkKsAhAlYtcjp5yfg9UgP Rj95UGwPgnNmQ8I0B0Wa+dNIA6pDHFp5x0ZHHLYfUcjPgf9GL1NhEYD1N43/bOi0 TqrPgsBKWRwDpLAmojnIpgJrUC3P6KL04jRhhDBWTRoYkQ55lrTH22Sb3QNo2xLN CLg/1pGpdAiWUV8FmssP140= =fR8s -----END PGP SIGNATURE----- Merge tag 'mips-fixes_7.2_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux Pull MIPS fixes from Thomas Bogendoerfer. * tag 'mips-fixes_7.2_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux: MIPS: configs: Enable the current Ingenic USB PHY symbol MIPS: loongson64: add IRQ work based on self-IPI MIPS: mm: Add check for highmem before removing memory block mips: Add build salt to the vDSO MIPS: DEC: Ensure RTC platform device deregistration upon failure |
||
|
Linus Torvalds
|
1e9cdc2ea1 |
16 ksmbd server fixes
-----BEGIN PGP SIGNATURE----- iQGzBAABCgAdFiEE6fsu8pdIjtWE/DpLiiy9cAdyT1EFAmpIIEQACgkQiiy9cAdy T1F7/Qv+JNKEjHIO4ckW44iuX9FC435P9A0hNI41ILqPwAkPFr3nbJFlFGiHQXRr zCwsxOUDBNtvleJczata8b6hcHR+6d00w6k5MKTZn/h59MJx21I7ukZd6RLy9saV KtndptFrfUw1ZR+BWohVUknpEFzt8lU9Ai2V1Rq8zvb9GtckkArR5sapF38Y3Cbr F7bu3uDlyXM9uGBDNoU58o0qA7en7FfISR6S3YC7ToZPsOUZUFMmu/7LtbUFv1WH EMKaCdFKKKqJbBrqDC0AnLQW8N6js5yOJ2KXc1+eG1t1sBQizYf8x3yy94YECVkI sXppz7s9aDYoWMAMD9ofDq+fBQQhI9zyRULNZIVCtLy09WDoXYoibbTWzID7nrd/ ufW7H91s9t4s+yTFKigN3vzY3A8JEqEA04TscJw7rLi/LaovcVvgLvm33A5mrxOS kjcjoha7Rz2kac7A8KxAIHK4CCLMS7bG028sLS0vY2lBW2KrDjzKiANJqMeSuB1m 9IM0u7eK =waBr -----END PGP SIGNATURE----- Merge tag 'v7.2-rc1-smb3-server-fixes' of git://git.samba.org/ksmbd Pull smb server fixes from Steve French: - Fix several use-after-free races in durable handle reconnect, supersede, and oplock handling - Avoid holding the inode oplock lock while waiting for a lease break acknowledgement. This removes delays of up to 35 seconds when cifs.ko closes a deferred handle in response to a lease break - Fix malformed security descriptor handling, including an undersized DACL allocation issue and an out-of-bounds ACE SID read - Fix memory leaks in security descriptor and DOS attribute xattr encoding/decoding error paths - Fix outstanding SMB2 credit leaks on aborted requests and correct the QUERY_INFO credit charge calculation - Fix hard-link creation without replacement being incorrectly rejected when the handle lacks DELETE access - Avoid unnecessary zeroing of large SMB2 read buffers - Add an oplock list lockdep annotation and update the documented support status for durable handles and SMB3.1.1 compression - Durable handle fixes to address ownership and lifetime races during reconnect, session teardown, oplock handling, and superseding opens, preventing stale session and file references from being used by concurrent operations * tag 'v7.2-rc1-smb3-server-fixes' of git://git.samba.org/ksmbd: ksmbd: fix app-instance durable supersede session UAF ksmbd: snapshot previous oplock state before durable checks ksmbd: close superseded durable handles through refcount handoff ksmbd: fix use-after-free of fp->owner.name in durable handle owner check smb/server: do not require delete access for non-replacing links ksmbd: don't hold ci->m_lock while waiting for a lease break ack ksmbd: doc: update feature support status for durable handles and compression ksmbd: annotate oplock list traversals under m_lock ksmbd: fix outstanding credit leak on abort and error paths ksmbd: fix credit charge calculation for SMB2 QUERY_INFO ksmbd: avoid zeroing the read buffer in smb2_read() ksmbd: validate num_subauth when copying ACE in set_ntacl_dacl ksmbd: reject undersized DACLs before parsing ACEs ksmbd: fix n.data memory leak in ksmbd_vfs_set_dos_attrib_xattr ksmbd: Fix acl.sd_buf memory leak and invalid sd_size error handling ksmbd: fix sd_ndr.data memory leak in ksmbd_vfs_set_sd_xattr |
||
|
Linus Torvalds
|
dac0b8c587 |
drm fixes for 7.2-rc2
core: - kernel doc fix - include types.h in drm_ras.h dma-fence: - fix NULL ptr dereference - use correct callback - make dma_fence_dedup_array more robust dp: - handle torn down topology gracefully - fix kernel doc i915: - Input validation fixes for BIOS and EDID - Fix HDCP code buffer overflow and seq_num_v monotonic increase check - Fix near-NULL deref in i915_active during GFP_ATOMIC exhaustion xe: - Wedge from the timeout handler only after releasing the queue - Fix a NULL pointer dereference - Remove redundant exec_queue_suspended - RTP / OA whitelist fixes - Return error on non-migratable faults requiring devmem - Skip FORCE_WC and vm_bound check for external dma-bufs - Hold notifier lock for write on inject test path - Drop bogus static from finish in force_invalidate - Fix double-free of managed BO in error path - Don't attempt to process FAST_REQ or EVENT relays - Fix NPD in bo_meminfo - Prevent invalid cursor access for purged BOs - Fix offset alignment for MERT WHITELST_OA_MERT_MMIO_TRG amdgpu: - Soc24 aborted suspend fix - Drop unecessary BUG() and BUG_ON() from error paths - SCPM fix - Power reporting fix - DCE HDR fix - UVD boundary checks - VCN boundary checks - VCE boundary checks - DCN 4.2 fixes - Large stack allocation fixes - Fix aperture mapping leak - UserQ fixes - Ignore_damage_clips fix - ACP fixes - DC boundary checks - GPUVM fixes - JPEG idle check fixes - Userptr fix - GC 11.7 updates - Non-4K page fix - SMU 13 fixes - DP alt mode fix amdkfd: - Boundary checks - CRIU fixes amdxdna: - fix device removal issues - fix use after free in debug BO imagination: - fix double call to scheduler fini - fix ioctl return values - fix user array stride virtio: - handle EDIDs better panthor: - irq safe fence lock fix - reset work fix - fix invalid pointer - fix iomem access in suspended state - sched resume fix - unplug suspend fix - drop needless check - eviction leak fix - bail on group start/resume fix - keep irqs masked malidp: - use clock bulk API komeda: - clock prepare fixes -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEEKbZHaGwW9KfbeusDHTzWXnEhr4FAmpILLYACgkQDHTzWXnE hr4jBw/7Bhh6wdPLs2lqdFecpMikm3icmyQylayY8f67TiHhsg93FNgmjHlkjnkH VfblnRR5jB5VNwOdzeMPKivR5X2wP2ruvjRWUIfN1dZiHoI6cf+1ClR1ZJD1aWPH kJkE35bbufGldjiztwGmuUjfiOl/8b58DzJdWYs5BJXbNTDn8XMGQp0ai+ye2yco PwHEDlD576k40BRPUVQk8fjPNd/YZw7t/zdmUQJxKVqVnT1GtgkJabdfje/QtqVw PU3diSmT/tYHZ4H0AIyYvneXFDHPKrvTBm7T1ADTnK2QbLxEcBaidgcGHYmncbFX nB/KP30ordTWf23LtsFYMfzB/yM+b0n/XiyzsZhm1XP9C2uPe4YJsmf+mPCH3KVI tAoSBpsPI9LQEkywf8Vu/QjiiWdO5b25SlkJy1AlNfLBZ2XX+TjgOCwjD62sUzer gfanrUl+viIUOBvT9oRMMTiR37g7+U2JoBJWLLB+pnTkZylJdLcK5J/tquEnjOdN uw/feReG221NJqJvxh7i1plfZTIx08E99gmH3OhVIvNOQbKSdSRGkCN9qON33XbA GovE+RoF5Zzl4MU1RlbfCOmG56Yez8VW2loSZwpX6r1JyJa/Mld6UjSp+/tkI00r e+LLdbQ/LeB/ARGGPf3ctS5/PZRvPNNGJiVtYpwN2ZvPz8lL1d8= =bXRh -----END PGP SIGNATURE----- Merge tag 'drm-fixes-2026-07-04' of https://gitlab.freedesktop.org/drm/kernel Pull drm fixes from Dave Airlie: "Weekly fixes for drm. This is large for rc2 but it's just a lot of small fixes across a bunch of drivers, xe, amdgpu as usual, plus some sashiko-inspired fixes for panthor, and some dma-fence updates. core: - kernel doc fix - include types.h in drm_ras.h dma-fence: - fix NULL ptr dereference - use correct callback - make dma_fence_dedup_array more robust dp: - handle torn down topology gracefully - fix kernel doc i915: - Input validation fixes for BIOS and EDID - Fix HDCP code buffer overflow and seq_num_v monotonic increase check - Fix near-NULL deref in i915_active during GFP_ATOMIC exhaustion xe: - Wedge from the timeout handler only after releasing the queue - Fix a NULL pointer dereference - Remove redundant exec_queue_suspended - RTP / OA whitelist fixes - Return error on non-migratable faults requiring devmem - Skip FORCE_WC and vm_bound check for external dma-bufs - Hold notifier lock for write on inject test path - Drop bogus static from finish in force_invalidate - Fix double-free of managed BO in error path - Don't attempt to process FAST_REQ or EVENT relays - Fix NPD in bo_meminfo - Prevent invalid cursor access for purged BOs - Fix offset alignment for MERT WHITELST_OA_MERT_MMIO_TRG amdgpu: - Soc24 aborted suspend fix - Drop unecessary BUG() and BUG_ON() from error paths - SCPM fix - Power reporting fix - DCE HDR fix - UVD boundary checks - VCN boundary checks - VCE boundary checks - DCN 4.2 fixes - Large stack allocation fixes - Fix aperture mapping leak - UserQ fixes - Ignore_damage_clips fix - ACP fixes - DC boundary checks - GPUVM fixes - JPEG idle check fixes - Userptr fix - GC 11.7 updates - Non-4K page fix - SMU 13 fixes - DP alt mode fix amdkfd: - Boundary checks - CRIU fixes amdxdna: - fix device removal issues - fix use after free in debug BO imagination: - fix double call to scheduler fini - fix ioctl return values - fix user array stride virtio: - handle EDIDs better panthor: - irq safe fence lock fix - reset work fix - fix invalid pointer - fix iomem access in suspended state - sched resume fix - unplug suspend fix - drop needless check - eviction leak fix - bail on group start/resume fix - keep irqs masked malidp: - use clock bulk API komeda: - clock prepare fixes" * tag 'drm-fixes-2026-07-04' of https://gitlab.freedesktop.org/drm/kernel: (105 commits) drm/xe/oa: Fix offset alignment for MERT WHITELIST_OA_MERT_MMIO_TRG drm/xe/pt: prevent invalid cursor access for purged BOs drm/xe: fix NPD in bo_meminfo() drm/xe/pf: Don't attempt to process FAST_REQ or EVENT relays drm/xe/hw_engine: Fix double-free of managed BO in error path drm/xe/userptr: Drop bogus static from finish in force_invalidate drm/xe/userptr: Hold notifier_lock for write on inject test path drm/xe/display: skip FORCE_WC and vm_bound check for external dma-bufs drm/xe: Return error on non-migratable faults requiring devmem drm/xe/rtp: Ensure locking/ref counting for OA whitelists drm/xe/oa: (De-)whitelist OA registers on OA stream open/release drm/xe/rtp: (De-)whitelist OA registers for all hwe's for a gt drm/xe/rtp: Toggle 'deny' bit to (de-)whitelist OA regs drm/xe/rtp: Save OA nonpriv registers to register save/restore lists drm/xe/rtp: Generalize whitelist_apply_to_hwe drm/xe/rtp: Keep track of non-OA nonpriv slots drm/xe/rtp: Maintain OA whitelists separately drm/xe/rtp: Fix build error with clang < 21 and non-const initializers drm/imagination: Fix user array stride in pvr_set_uobj_array() drm/imagination: Fix returned size for DRM_IOCTL_PVR_DEV_QUERY ... |
||
|
Linus Torvalds
|
e6174e9b38 |
ACPI support fixes for 7.2-rc2
- Add a missing ACPI_TAD_AC_WAKE capability check omitted by mistake to
the ACPI TAD driver (Xu Rao)
- Define acpi_ut_safe_strncpy() as an alias for strscpy_pad() which is
viable because that function is only called from kernel code (Rafael
Wysocki)
-----BEGIN PGP SIGNATURE-----
iQFGBAABCAAwFiEEcM8Aw/RY0dgsiRUR7l+9nS/U47UFAmpIAfgSHHJqd0Byand5
c29ja2kubmV0AAoJEO5fvZ0v1OO1BrsH/j1RgYp/hU3ws2RFCw7Cs2ap8vbidedB
XtcliFxVfvy4NI5Xlw+YNHW2lyjCcF1lcInumkW1yG5KFkqyOevX6YmnykOJkDON
7alv7rt/W7qLT3BDvZdzUm+zCflm8ieapohpFMEtaJTgguJKwP+0HS3XCQ1eSorH
4mou0SI1qkjqllXZB7PKTPEgcD0ji3dkusjtcp3qvZrgeO9qsZ6C2GABeQwDRIPU
BZhIdjf1jwX/T7Qn5llQHGMWCM78zHSGIRDA6zXnqn7jse5pntbQOwYL/6jRc0QA
kj+9akgDe1YnEAAvIm5cMAygBuqGDCH4S4XEBtQeTc9XwJaDC0g1Hzc=
=ffMf
-----END PGP SIGNATURE-----
Merge tag 'acpi-7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI support fixes from Rafael Wysocki:
"These fix a coding mistake in the ACPI TAD (Time and Alarm
Device) driver introduced by one of its previous updates and
get rid of the ugly #ifdef __KERNEL__ conditional compilation
in acpi_ut_safe_strncpy() by redefining that function as an
alias for strscpy_pad():
- Add a missing ACPI_TAD_AC_WAKE capability check omitted by mistake
to the ACPI TAD driver (Xu Rao)
- Define acpi_ut_safe_strncpy() as an alias for strscpy_pad()
which is viable because that function is only called from kernel
code (Rafael Wysocki)"
* tag 'acpi-7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPICA: Define acpi_ut_safe_strncpy() as strscpy_pad() alias
ACPI: TAD: Check AC wake capability before enabling wakeup
|
||
|
Linus Torvalds
|
590cae7152 |
RISC-V updates for v7.2-rc2
- Fix a crash when a kretprobe reads from the stack - Fix an issue with the build-time mcount sorter that broke ftrace - Fix the rv32 IRQ stack frame padding to match the ABI - Only defer IOMMU configuration during initialization. This avoids an issue where IOMMU configuration could be indefinitely deferred - Add the missing build salt to the vDSO - Now that RISC-V systems with higher numbers of cores are starting to become available, raise NR_CPUS for RISC-V to 256 - Clean up some warnings from sparse caused by the RISC-V-optimized RAID6 code - Clean up our __cpu_up() code with a few minor fixes -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEElRDoIDdEz9/svf2Kx4+xDQu9KksFAmpH+BAACgkQx4+xDQu9 Kkt2BxAAkHACbEzUDBJnhKL+Ce39S4QzNb+5iE25t7cUrpkK2ArYMBCd5Zir0Q+E WIP1nmDYsE9z6fNa8CncIEY6CnNBNDRK2eR7BiUM+tOhS5jMqvctb7LxkIGgbh3/ VuNCw0NIavQ5zMqdVHQVzfIS+PojysZVnSQ3CwAHV1hgKO0p1FVozfv3N+TWBHjL hMCGxCNxIQaDXFKLSYlOh4fJEgpyznRo/YNybmugCAe8HqY2RyOgWhm62ipL0kcP OAjpKRIJ9o4CCaC+F3TNGjubw2I+AkEf8rMbw1KDuzwDI2HmsubMyFS/LHrhM0D7 VhSjxu3DxJT7ObM4ID07hjywWTRAfmwI0AokajYmBPqVi3t+erJnAU2ayExnFmg9 PWN53BbEMg+T2W5ym7arhWz28MdHoATviwEy1gLgaJbQtAQJDzK1FQ9in5m+AJAe QAO6O04bS+PUOz4orlGMDa7bLnHQucLKNvkI7EkXdS47yYPvs6OwOX1EjfMkM1TE O+36Uc6FSAEoO3nN5QGhV2OUegPyKm8lSJhqfftK4qBSd7Ffd9Mpsw9APCj/75ay uZ2yvllHli+SLo/xgOs/oFFUTrID1LUmwDzU7K1tr11hI2AV2BZ4aA1h3B6LbVt9 Tz3vxaOC4DEx9owhQRaFgo13KvSYAAz4QYAwr1EMPHtDMRxu6k8= =qgfC -----END PGP SIGNATURE----- Merge tag 'riscv-for-linus-7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux Pull RISC-V fixes from Paul Walmsley: - Fix a crash when a kretprobe reads from the stack - Fix an issue with the build-time mcount sorter that broke ftrace - Fix the rv32 IRQ stack frame padding to match the ABI - Only defer IOMMU configuration during initialization. This avoids an issue where IOMMU configuration could be indefinitely deferred - Add the missing build salt to the vDSO - Now that RISC-V systems with higher numbers of cores are starting to become available, raise NR_CPUS for RISC-V to 256 - Clean up some warnings from sparse caused by the RISC-V-optimized RAID6 code - Clean up our __cpu_up() code with a few minor fixes * tag 'riscv-for-linus-7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: riscv: probes: save original sp in rethook trampoline riscv: Fix 32-bit call_on_irq_stack() frame pointer ABI scripts/sorttable: Handle RISC-V patchable ftrace entries riscv: smp: use secs_to_jiffies in __cpu_up ACPI: RIMT: Only defer the IOMMU configuration in init stage riscv: Add build salt to the vDSO raid6: fix raid6_recov_rvv symbol undeclared warning raid6: fix riscv symbol undeclared warnigns riscv: Raise default NR_CPUS for 64BIT to 256 |
||
|
Linus Torvalds
|
6cf48bfec9 |
4 smb client fixes
-----BEGIN PGP SIGNATURE----- iQGzBAABCgAdFiEE6fsu8pdIjtWE/DpLiiy9cAdyT1EFAmpIEO8ACgkQiiy9cAdy T1FANwwAiPzR+deWnTwY0euLqG7MxRe7JTF2jQYvF4YPa6HRzCj6wjcPzwYa0fAV fu2ZpOvfmHZFmgbMdcTU2NcRbDIjGAG02wEFHu7okw1BgcQSijHqTz7k82N7LzzF 4GiOqX3L4zXKzwSH1HIyudfDdEsuo1xN2ydW6mouWM8r26BUvAA7SFyCquN9t+ou sp76oxlj9VZbNvaTWenYRFQM+PfLCEM/E+RcSDwpyvtj0uYArE/bLxteDr7gbao4 zJltCCQCO8lzhHjwBWP9RRUQZH/pbtfZ6ylr3Qaa/eRgZR/C3cKBe6B5pZ/6RPUN 9vLvd4cRaO1rxTcZ2+8DVXFWVz42CMPa6JkBQeRLgpNlAfEqeTmrDX2EsX/m53yz 56/heHWz7yUtuuBFPI2y83tEzcRCIkOV9T3Xbw9+Q/qPweHuXvM3u0zmVuPwnvID LAGRvqC6g2VhJFw1u4T4i6Z/RDl0uQSZPcwDQriEknONGwT0jCteuXBMK6waMEbn ZH3DQ6Sj =C9Qx -----END PGP SIGNATURE----- Merge tag 'v7.2-rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6 Pull smb client fixes from Steve French: - Credit fix - Fix alignment issue in parse_posix_ctxt - SID parsing fix * tag 'v7.2-rc1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6: cifs: Fix missing credit release on failure in cifs_issue_read() cifs: update internal module version number smb: client: use unaligned reads in parse_posix_ctxt() smb: client: harden POSIX SID length parsing |
||
Andreas Kempe
|
aede83625f |
iio: imu: st_lsm6dsx: deselect shub page before reading whoami
As part of driver initialization, e.g. st_lsm6dsx_init_shub() selects
the shub register page using st_lsm6dsx_set_page(). Selecting the shub
register page shadows the regular register space so whoami, among other
registers, is no longer accessible.
In applications where the IMU is permanently powered separately from the
processor, there is a window where a reset of the CPU leaves the IMU in
the shub register page. Once this occurs, any subsequent probe attempt
fails because of the register shadowing.
Using the ism330dlc, the error typically looks like
st_lsm6dsx_i2c 3-006a: unsupported whoami [10]
with the unknown whoami read from a reserved register in the shub page.
The reset register is also shadowed by the page select, preventing a
reset from recovering the chip.
Unconditionally clear the shub page before the whoami readout to ensure
normal register access and allow the initialization to proceed.
Place the fix in st_lsm6dsx_check_whoami() before the whoami check
because hw->settings, which st_lsm6dsx_set_page() relies on, is first
assigned in that function.
Placing the fix in a more logical place than the whoami check would
require a bigger restructuring of the code.
Fixes:
|
||
Rafael J. Wysocki
|
973772c7cf |
Merge branch 'acpi-tad'
Merge an ACPI TAD (Time and Alarm Device) driver fix for 7.2-rc2. * acpi-tad: ACPI: TAD: Check AC wake capability before enabling wakeup |
||
Paolo Abeni
|
d645674342 |
Merge branch 'net-mlx5e-fix-crashes-in-dynamic-per-channel-stats-and-hv-vhca-agent'
Tariq Toukan says:
====================
net/mlx5e: Fix crashes in dynamic per-channel stats and HV VHCA agent
Since per-channel stats were converted to be allocated and published
lazily at first channel open in commit
|
||
Feng Liu
|
5a799714e8 |
net/mlx5e: Fix publication race for priv->channel_stats[]
mlx5e_channel_stats_alloc() publishes a new entry to
priv->channel_stats[] and then increments priv->stats_nch as a
publication token, but neither store carries any memory barrier:
priv->channel_stats[ix] = kvzalloc_node(...);
if (!priv->channel_stats[ix])
return -ENOMEM;
priv->stats_nch++;
Concurrent readers compute the loop bound from priv->stats_nch and
then dereference priv->channel_stats[i] using plain accesses, e.g.
for (i = 0; i < priv->stats_nch; i++) {
struct mlx5e_channel_stats *cs = priv->channel_stats[i];
... cs->rq.packets ...
}
On weakly-ordered architectures (ARM, PowerPC, RISC-V) the writes to
channel_stats[ix] and stats_nch may become visible to other CPUs out
of program order. A reader can observe stats_nch == N while still
seeing channel_stats[N-1] == NULL, leading to a NULL pointer
dereference in the channel_stats loop.
This has been observed in production on BlueField-3 DPUs (arm64),
where ovs-vswitchd queries netdev statistics over netlink during NIC
bringup, racing mlx5e_open_channel() -> mlx5e_channel_stats_alloc()
on another CPU:
Unable to handle kernel NULL pointer dereference at virtual address 0x840
Hardware name: BlueField-3 DPU
pc : mlx5e_fold_sw_stats64+0x30/0x180 [mlx5_core]
Call trace:
mlx5e_fold_sw_stats64+0x30/0x180 [mlx5_core]
dev_get_stats+0x50/0xc0
ovs_vport_get_stats+0x38/0xac [openvswitch]
ovs_vport_cmd_fill_info+0x194/0x290 [openvswitch]
ovs_vport_cmd_get+0xbc/0x10c [openvswitch]
genl_family_rcv_msg_doit+0xd0/0x160
genl_rcv_msg+0xec/0x1f0
netlink_rcv_skb+0x64/0x130
genl_rcv+0x40/0x60
netlink_unicast+0x2fc/0x370
netlink_sendmsg+0x1dc/0x454
...
__arm64_sys_sendmsg+0x2c/0x40
Add mlx5e_stats_nch_write() and mlx5e_stats_nch_read() helpers in en.h
that wrap the smp_store_release()/smp_load_acquire() pair on stats_nch.
The release/acquire pair establishes the contract:
stats_nch == N => channel_stats[0..N-1] are visible and non-NULL.
Publish the stats_nch increment via mlx5e_stats_nch_write() in the
writer (mlx5e_channel_stats_alloc()), and read stats_nch via
mlx5e_stats_nch_read() in all readers: mlx5e RX/TX queue stats,
mlx5e_get_base_stats(), ethtool channels stats, IPoIB stats, the
sw_stats fold and the HV VHCA stats agent.
Fixes:
|
||
|
Feng Liu
|
89b25b5f46 |
net/mlx5e: Fix HV VHCA stats agent registration race
mlx5e_hv_vhca_stats_create() registers the stats agent through
mlx5_hv_vhca_agent_create(). The helper publishes the agent in
hv_vhca->agents[type] under agents_lock and immediately schedules an
asynchronous control invalidation on the HV VHCA workqueue before
returning to mlx5e.
The asynchronous invalidation invokes the control agent's invalidate
callback, which reads the hypervisor control block and forwards the
command to mlx5e_hv_vhca_stats_control(). That callback may either:
- call cancel_delayed_work_sync(&priv->stats_agent.work), or
- call queue_delayed_work(priv->wq, &sagent->work, sagent->delay).
However, the delayed_work and priv->stats_agent.agent are only
initialized after mlx5_hv_vhca_agent_create() returns to mlx5e:
agent = mlx5_hv_vhca_agent_create(...); /* publish + invalidate */
...
priv->stats_agent.agent = agent; /* too late */
INIT_DELAYED_WORK(&priv->stats_agent.work, ...); /* too late */
If the asynchronous control path runs before the two assignments
above, it can:
- Operate on an uninitialized delayed_work whose timer.function is
NULL. queue_delayed_work() calls add_timer() unconditionally, so
when the timer expires the timer softirq invokes a NULL function
pointer.
- Re-initialize the timer later through INIT_DELAYED_WORK() while
the timer is already enqueued in the timer wheel, corrupting the
hlist (entry.pprev cleared while the previous bucket node still
points at this entry).
- When the worker eventually runs, mlx5e_hv_vhca_stats_work() reads
sagent->agent (NULL) and dereferences it inside
mlx5_hv_vhca_agent_write().
Fix this by:
- Initializing priv->stats_agent.work before invoking
mlx5_hv_vhca_agent_create(), so the work is always in a valid
state when the control callback observes it.
- Adding a struct mlx5_hv_vhca_agent **ctx_update out-parameter
to mlx5_hv_vhca_agent_create(). The helper writes the agent
pointer to *ctx_update before publishing into hv_vhca->agents[]
and triggering the agents_update flow, so any callback
subsequently invoked from that flow already sees a valid
priv->stats_agent.agent. This avoids having the control
callback participate in agent initialization.
While at it, access priv->stats_agent.agent with
READ_ONCE()/WRITE_ONCE() for the cross-CPU access with the worker, and
clear priv->stats_agent.buf on the agent_create() failure path.
Fixes:
|
||
|
Feng Liu
|
25f6b929c7 |
net/mlx5e: Fix HV VHCA stats zero-sized buffer allocation
mlx5e_hv_vhca_stats_create() is called from mlx5e_nic_enable(),
before mlx5e_open(). At that point priv->stats_nch is still zero,
because it is only ever incremented in mlx5e_channel_stats_alloc(),
which is reached only from mlx5e_open_channel().
mlx5e_hv_vhca_stats_buf_size() therefore returns 0, and
kvzalloc(0, GFP_KERNEL) returns ZERO_SIZE_PTR ((void *)16) rather
than NULL. The "if (!buf)" guard does not catch this, and
mlx5e_hv_vhca_stats_create() completes "successfully" with
priv->stats_agent.buf set to ZERO_SIZE_PTR.
Once channels are opened (priv->stats_nch > 0) and the hypervisor
enables stats reporting, mlx5e_hv_vhca_stats_work() recomputes
buf_len using the new non-zero stats_nch and calls
memset(buf, 0, buf_len) on ZERO_SIZE_PTR, faulting at address 0x10.
Allocate the buffer based on priv->max_nch, which is set in
mlx5e_priv_init() and is the upper bound on stats_nch:
- Add a separate helper mlx5e_hv_vhca_stats_buf_max_size() that
returns sizeof(per_ring_stats) * max(max_nch, stats_nch), and
use it for the kvzalloc() in mlx5e_hv_vhca_stats_create().
- Keep mlx5e_hv_vhca_stats_buf_size() (which returns based on
stats_nch) for the worker's active payload size, so the wire
format (block->rings = stats_nch) and the amount of data filled
by mlx5e_hv_vhca_fill_stats() are unchanged.
The max(max_nch, stats_nch) guard handles the rare case where
mlx5e_attach_netdev() recomputes max_nch downward across a
detach/resume cycle while priv->stats_nch persists (mlx5e_detach_netdev
does not call mlx5e_priv_cleanup, so stats_nch is only reset when
the netdev is destroyed). Without the guard, the worker could compute
buf_len from stats_nch and overrun the smaller buffer allocated based
on the reduced max_nch.
Allocating a non-zero buffer also makes the kvzalloc() failure path in
mlx5e_hv_vhca_stats_create() reachable for the first time: it returns
early without (re)creating the agent. Clear
priv->stats_agent.{agent,buf} in mlx5e_hv_vhca_stats_destroy() after
freeing them, so that if a later create() bails out on this path, a
subsequent teardown does not double-free the stale agent/buffer left
from a previous enable/disable cycle.
This mirrors the existing mlx5e pattern of preallocating arrays of
size max_nch (e.g. priv->channel_stats) and lazily populating
entries up to stats_nch on demand.
Fixes:
|
||
Damon Ding
|
6bb8898f70 |
drm/bridge: analogix_dp: Fix PE/VS value shift mismatch during link training
VS/PE values returned by drm_dp_get_adjust_request_voltage() and
drm_dp_get_adjust_request_pre_emphasis() are already encoded to their
native DPCD register bit positions. However, DPCD_VOLTAGE_SWING_SET /
DPCD_PRE_EMPHASIS_SET macros perform an extra internal shift. Feeding
the raw offset-bearing values directly leads to overlapping bitfields
and invalid lane training configuration, causing link training failures
and black screen.
Add right shift using DP_TRAIN_*_SHIFT constants to strip the DPCD bit
offsets before passing values to the SET macros and subsequent checks.
Apply this fix for both clock recovery and adjust training code paths.
Reported-by: Vicente Bergas <vicencb@gmail.com>
Closes: https://lore.kernel.org/all/CAAMcf8D-d+5n=H44KeKBSqWY42m+o32W+mO-r15VqWNyYhJL7Q@mail.gmail.com/
Fixes:
|
||
|
Paolo Abeni
|
88c4273ab4 |
Merge branch 'net-mlx5-lag-bug-fixes'
Tariq Toukan says: ==================== net/mlx5: LAG bug fixes Three bug fixes by Shay in the mlx5 LAG subsystem. Patch 1 fixes an off-by-one in the error rollback path of mlx5_lag_create_single_fdb_filter(): the loop started from the failed index i, potentially operating on uninitialized state or double-tearing-down an entry that had already self-rolled-back. The rollback should start from i - 1. Patch 2 fixes a hang in mlx5_mpesw_work(): when mlx5_lag_get_devcom_comp() returns NULL the function returned early without calling complete(), blocking any caller waiting on mpesww->comp indefinitely. Patch 3 fixes a kernel crash during teardown when mlx5_lag_get_dev_seq() returns an error because no device is marked as master or the peer is no longer in the LAG. The peer flow cleanup is now skipped instead of proceeding with a bad pointer. This series by Shay fixes three bugs in the mlx5 LAG subsystem. v1: https://lore.kernel.org/all/20260617063204.547427-2-tariqt@nvidia.com/ ==================== Link: https://patch.msgid.link/20260630112917.698313-1-tariqt@nvidia.com Signed-off-by: Paolo Abeni <pabeni@redhat.com> |
||
Shay Drory
|
7bed4af0ce |
net/mlx5e: TC, skip peer flow cleanup when LAG seq is unavailable
mlx5_lag_get_dev_seq() will return error when the peer isn't in the LAG
or when no device is marked as master. Result bad memory access and kernel
crash[1].
Hence, skip the peer when lookup fails.
Note: In case there are peer flows, they are cleaned before LAG cleared
the master mark.
[1]
RIP: 0010:mlx5e_tc_del_fdb_peers_flow+0x3d/0x350 [mlx5_core]
Call Trace:
<TASK>
mlx5e_tc_clean_fdb_peer_flows+0xc1/0x130 [mlx5_core]
mlx5_esw_offloads_unpair+0x3a/0x400 [mlx5_core]
mlx5_esw_offloads_devcom_event+0xee/0x360 [mlx5_core]
mlx5_devcom_send_event+0x7a/0x140 [mlx5_core]
mlx5_esw_offloads_devcom_cleanup+0x2f/0x90 [mlx5_core]
mlx5e_tc_esw_cleanup+0x28/0xf0 [mlx5_core]
mlx5e_rep_tc_cleanup+0x19/0x30 [mlx5_core]
mlx5e_cleanup_uplink_rep_tx+0x36/0x40 [mlx5_core]
mlx5e_cleanup_rep_tx+0x55/0x60 [mlx5_core]
mlx5e_detach_netdev+0x96/0xf0 [mlx5_core]
mlx5e_netdev_change_profile+0x5b/0x120 [mlx5_core]
mlx5e_netdev_attach_nic_profile+0x1b/0x30 [mlx5_core]
mlx5e_vport_rep_unload+0xdd/0x110 [mlx5_core]
__esw_offloads_unload_rep+0x81/0xb0 [mlx5_core]
mlx5_eswitch_unregister_vport_reps+0x1d7/0x220 [mlx5_core]
mlx5e_rep_remove+0x22/0x30 [mlx5_core]
device_release_driver_internal+0x194/0x1f0
bus_remove_device+0xe8/0x1b0
device_del+0x159/0x3c0
mlx5_rescan_drivers_locked+0xbc/0x2d0 [mlx5_core]
mlx5_unregister_device+0x54/0x80 [mlx5_core]
mlx5_uninit_one+0x73/0x130 [mlx5_core]
remove_one+0x78/0xe0 [mlx5_core]
pci_device_remove+0x39/0xa0
Fixes:
|
||
|
Shay Drory
|
d4b85f9a66 |
net/mlx5: LAG, MPESW, Fix missing complete() on devcom error
mlx5_mpesw_work() returned without calling complete() when
mlx5_lag_get_devcom_comp() returned NULL. A caller that queued the
work and waited on mpesww->comp would block indefinitely.
Funnel the early-return path through a new "complete" label so the
waiter is always woken.
Fixes:
|
||
|
Shay Drory
|
0f0e4ae697 |
net/mlx5: LAG, Fix off-by-one in single-FDB error rollback
On failure at index i, the reverse cleanup loop in
mlx5_lag_create_single_fdb() starts from i, so the failed index
itself is rolled back. That can operate on uninitialized state or
double-tear-down a rule the add_one path already self-rolled-back.
Start the rollback from i - 1 so only successfully-installed entries
are undone.
Fixes:
|
||
|
Linus Torvalds
|
71dfdfb020 |
vfs-7.2-rc2.fixes
Please consider pulling these changes from the signed vfs-7.2-rc2.fixes tag.
Thanks!
Christian
-----BEGIN PGP SIGNATURE-----
iHUEABYKAB0WIQRAhzRXHqcMeLMyaSiRxhvAZXjcogUCakeSGAAKCRCRxhvAZXjc
opdAAQDCui7Q517Wxe59USK+wtnOVARMzCN0Tu6e/HodvbbIEAD/RmgGnQrYF13I
3BuCwTMS9Q1lHQLUtIkd9WqqYa2rQws=
=uL08
-----END PGP SIGNATURE-----
Merge tag 'vfs-7.2-rc2.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull vfs fixes from Christian Brauner:
- netfs:
- fix the decision when to disallow write-streaming with fscache in
use, handling of asynchronous cache object creation, a double fput
in cachefiles, clearing S_KERNEL_FILE without the inode lock held,
page extraction bugs in the iov_iter helpers (a potential
underflow, a missing allocation failure check, a memory leak, and
a folio offset miscalculation), writeback error and ENOMEM
handling, DIO write retry for filesystems without a
->prepare_write() method, and the replacement of the wb_lock mutex
with a bit lock plus writethrough collection offload so that
multiple asynchronous writebacks don't interfere with each other.
- Fix the barriering when walking the netfs subrequest list during
retries as it was possible to see a subrequest that was just added
by the application thread.
- iomap:
- Change iomap to submit read bios after each extent instead of
building them up across extents. The old behavior was considered
problematic for a while and now caused an actual erofs bug.
- Guard the ioend io_size EOF trim in iomap against underflow when a
concurrent truncate moves EOF below the start of the ioend,
wrapping io_size to a huge value.
- overlayfs
- Fix a stale overlayfs comment about the locking order.
- Store the linked-in upper dentry instead of the disconnected
O_TMPFILE dentry during overlayfs tmpfile copy-up. With a FUSE or
virtiofs upper layer ->d_revalidate() would try to look up "/" in
the workdir and fail, causing persistent ESTALE errors that broke
dpkg and apt.
- vfs-bpf:
Have the bpf_real_data_inode() kfunc take a struct file instead of a
dentry so it is usable from the bprm_check_security, mmap_file, and
file_mprotect hooks, and rename it from bpf_real_inode() to make the
data-inode semantics explicit. The kfunc landed this cycle so the
change is safe.
- afs:
NULL pointer dereferences in the callback service and in
afs_get_tree(), several memory and refcount leaks, missing locking
around the dynamic root inode numbers and premature cell exposure
through /afs, a netns destruction hang caused by a misplaced
increment of net->cells_outstanding, a bulk lookup malfunction caused
by the dir_emit() API change, inode (re)initialisation issues, and
assorted smaller fixes to error codes, seqlock handling, and debug
output.
- vfs:
Refuse O_TMPFILE creation with an unmapped fsuid or fsgid and add a
selftest for it.
- vboxsf:
Add Jori Koolstra as vboxsf maintainer, taking over from Hans de
Goede.
- dio:
Release the pages attached to a short atomic dio bio; the REQ_ATOMIC
size check error path leaked them.
- procfs:
Only bump the parent directory link count when registering
directories in procfs. Registering regular files inflated the count
and leaked a link on every create and remove cycle.
- minix:
Avoid an unsigned overflow in the minix bitmap block count
calculation that let crafted images with huge inode or zone counts
pass superblock validation and crash the kernel during mount.
- cachefiles:
Fix a double unlock in the cachefiles nomem_d_alloc error path left
over from the start_creating() conversion.
- fat:
Stop fat from reading directory entries past the 0x00
end-of-directory marker. If the trailing on-disk slots aren't
zero-filled the driver surfaced arbitrary garbage as directory
entries.
- freexvfs:
Don't BUG() on unknown typed-extent types in freevxfs, reachable via
ioctl(FIBMAP) on a crafted image; fail with an I/O error instead.
- orangefs:
Keep the readdir entry size 64-bit in orangefs fill_from_part().
Truncating it to __u32 bypassed the bounds check and led to
out-of-bounds reads triggerable by the userspace client.
- xfs:
Fix the error unwind in xfs_open_devices() which released the rt
device file twice and left dangling buftarg pointers behind that were
freed again when the failed mount was torn down.
- exec:
Fix an off-by-one in the comment documenting the maximum binfmt
rewrite depth in exec_binprm(). The code allows five rewrites, not
four; restricting the code would break userspace so the comment is
fixed instead.
- file handles:
Reject detached mounts in capable_wrt_mount(). A detached mount can
be dissolved concurrently, leaving a NULL mount namespace that
open_by_handle_at() would dereference.
* tag 'vfs-7.2-rc2.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (57 commits)
netfs: Fix barriering when walking subrequest list
iomap: submit read bio after each extent
fuse: call fuse_send_readpages explicitly from fuse_readahead
iomap: consolidate bio submission
fhandle: reject detached mounts in capable_wrt_mount()
netfs: Fix DIO write retry for filesystems without a ->prepare_write()
netfs: Fix folio state after ENOMEM whilst under writeback iteration
netfs: Fix writeback error handling
netfs: Fix writethrough to use collection offload
netfs: Replace wb_lock with a bit lock for asynchronicity
netfs: Fix kdoc warning
scatterlist: Fix offset in folio calc in extract_xarray_to_sg()
iov_iter: Remove unused variable in kunit_iov_iter.c
iov_iter: Fix a memory leak in iov_iter_extract_user_pages()
iov_iter: Fix missing alloc fail check in iov_iter_extract_bvec_pages()
iov_iter: Fix potential underflow in iov_iter_extract_xarray_pages()
cachefiles: Fix file burial to take lock when unsetting S_KERNEL_FILE
cachefiles: Fix double fput
netfs: Fix netfs_create_write_req() to handle async cache object creation
netfs: Fix decision whether to disallow write-streaming due to fscache use
...
|
||
|
Linus Torvalds
|
025d0d6221 |
xfs: fixes for 7.2-rc2
Signed-off-by: Carlos Maiolino <cem@kernel.org> -----BEGIN PGP SIGNATURE----- iJUEABMJAB0WIQSmtYVZ/MfVMGUq1GNcsMJ8RxYuYwUCakeeeQAKCRBcsMJ8RxYu Y6Q+AX9gnOQ1ZkxIKb+/hHq061nh/41iOaiO1CHEgvkCuX2pkRDJkIO2g5+1WaCC FcjSzLcBf0COW1/Pye2+ViB1u/SkMJZpKbrKl6lY4wcVHtqNSwn/D0zvbXsfBSsb Zj6I2kGZGw== =FpZC -----END PGP SIGNATURE----- Merge tag 'xfs-fixes-7.2-rc2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux Pull xfs fixes from Carlos Maiolino: "A collection of bugfixes and some small code refactoring" * tag 'xfs-fixes-7.2-rc2' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: xfs: simplify __xfs_buf_ioend xfs: fix handling of synchronous errors in xfs_buf_submit xfs: remove xfs_buf_ioend xfs: improve the xfs_buf_ioend_fail calling convention xfs: use null daddr for unset first bad log block xfs: fix memory leak in xfs_dqinode_metadir_create() xfs: release dquot buffer after dqflush failure xfs: also mark the buffer stale on verifier failure in xfs_buf_submit xfs: open code xfs_buf_ioend_fail in xfs_buf_submit xfs: fix AGFL extent count calculation in xrep_agfl_fill xfs: simplify the failure path in xfs_buf_alloc_vmalloc xfs: fix incorrect use of gfp flags in xfs_buf_alloc_backing_mem xfs: lift setting __GFP_NOFAIL from xfs_buf_alloc_kmem to the caller xfs: split up xfs_buf_alloc_backing_mem |
||
|
Linus Torvalds
|
4dbc94bcc2 |
xen: branch for v7.2-rc2
-----BEGIN PGP SIGNATURE----- iJEEABYKADkWIQRTLbB6QfY48x44uB6AXGG7T9hjvgUCakeC1xsUgAAAAAAEAA5t YW51MiwyLjUrMS4xMiwyLDIACgkQgFxhu0/YY74ZBQD/chB7mZrRK5FWdhtEYZuT 5is9FKdEe7P3rRChGuDxGZoBAISClrfxdh46C90D8jhjE3G3xWsN5DIajo1YaDbH TroI =wiih -----END PGP SIGNATURE----- Merge tag 'for-linus-7.2a-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen fixes from Juergen Gross: - rename function parameters and a comment related to xen_exchange_memory() (Jan Beulich) - replace __ASSEMBLY__ with __ASSEMBLER__ (Thomas Huth) - add some sanity checking to the Xen pvcalls frontend driver (Michael Bommarito) - fix error handling in the Xen gntdev driver (Wentao Liang) - fix several minor bugs in Xen related drivers (Yousef Alhouseen) * tag 'for-linus-7.2a-rc2-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: x86/Xen: correct commentary and parameter naming of xen_exchange_memory() xenbus: reject unterminated directory replies xen/gntalloc: validate grant count before allocation xen/gntalloc: make grant counters unsigned xen/front-pgdir-shbuf: free grant reference head on errors xen/gntdev: fix error handling in ioctl xen: Replace __ASSEMBLY__ with __ASSEMBLER__ in header files xen/pvcalls: bound backend response req_id before indexing rsp[] |
||
|
Linus Torvalds
|
2916bfc6ba |
gpio fixes for v7.2-rc2
- check the return value of gpiochip_add_data() in gpio-mvebu and gpio-htc-egpio - avoid locking context issues with GPIO drivers using the shared GPIO proxy by only allowing sleeping operations (atomic GPIO ops don't really make sense in shared context anyway) - with the above: restoe non-sleeping GPIO access in pinctrl-meson - fix return value on OOM in gpio-timberdale - fix interrupt handling in gpio-mt7621 - support both A and B variants of NCT6126D in gpio-f7188x -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEkeUTLeW1Rh17omX8BZ0uy/82hMMFAmpHaxAACgkQBZ0uy/82 hMMo+Q/+MPDFUmy4E7mA1FwcJ1jwx4sFp7tIVu5jAjlC9GyrRJXxN6IS4od4RcqP x6r+FU+2j8G1Fyob6kh7nvsjsvNFkGkHToMIzJLaR/BNCQe3JhU/ipNx8rQ5OOHN lFBUfax0NoodxXbCftn3FHtvvLjNuRMTq9i0OkmoNgtqvuGmPFI4Zv/M3NdR/+bA hvv4cmdnQFNceX2FNTo5tcOyDyuAsrt+2oguE8zgLoLXKXk4E5NTrtxUVlyOCtPD 43WpqoLC1nZJQZ2pK7Tfh4vjSlKl78ybhSEk9i/h9N+8fjWfWYQfYnT+akmi5oou LhDrg2k7AD4tJUJX1TPJofCnRM5F/qTPkxliXzzsi6zzMGpoKuLTejDEuY4Vl5D3 TRk5lMi6yoorNtaKKmpDzflbpFZlnNvn7BE1KrUgYp/w1Vm8sEPfva87rSH+yYj/ AhDnJvm9c6A6vsb58RO0h4QMArzq71BIR8S1fA7P5AFDyUk2EEBM3RZGdJfCo61c 8/2PoYvRJWvlHsRlPmY/eWsOq25RE2fUEjpVI5PV8C9z+QFFM6gW+6QSZjbnWrtA Bdph8+549oWtPwCmx1CmdM5vxMOkuLYU/B7fdWAjzgL/YtIbM93+KLuzh9eblUpr eOKRxHIZoOb09Zcte4ke8wFckbCCEN3HmDIl+2TSgVG8i1L3FS8= =Q09c -----END PGP SIGNATURE----- Merge tag 'gpio-fixes-for-v7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux Pull gpio fixes from Bartosz Golaszewski: - check the return value of gpiochip_add_data() in gpio-mvebu and gpio-htc-egpio - avoid locking context issues with GPIO drivers using the shared GPIO proxy by only allowing sleeping operations (atomic GPIO ops don't really make sense in shared context anyway) - with the above: restore non-sleeping GPIO access in pinctrl-meson - fix return value on OOM in gpio-timberdale - fix interrupt handling in gpio-mt7621 - support both A and B variants of NCT6126D in gpio-f7188x * tag 'gpio-fixes-for-v7.2-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: pinctrl: meson: restore non-sleeping GPIO access gpio: timberdale: Return -ENOMEM on dynamic memory allocation in probe gpio: mt7621: be sure IRQ domain is created before exposing GPIO chips gpio: mt7621: more robust management of IRQ domain teardown gpio: mt7621: avoid corruption of shared interrupt trigger state gpio: shared-proxy: always serialize with a sleeping mutex gpio-f7188x: Add support for NCT6126D version B gpio: htc-egpio: use managed gpiochip registration gpio: mvebu: fail probe if gpiochip registration fails |
||
Yousef Alhouseen
|
539dfcf691 |
mac802154: remove interfaces with RCU list deletion
Queue wake, stop, and disable paths walk local->interfaces under RCU.
The bulk hardware teardown path removes entries with list_del(), so an
asynchronous transmit completion can follow a poisoned list node in
ieee802154_wake_queue().
Use list_del_rcu() as in the single-interface removal path. The following
unregister_netdevice() waits for in-flight RCU readers before freeing the
netdevice, so no separate grace-period wait is needed.
Fixes:
|
||
Jamal Hadi Salim
|
6301f6a34e |
net/sched: sch_teql: move rcu_read_lock()/spin_lock() from _bh variants
This is a followup based on sashiko comments [1] on commit |
||
Miquel Raynal
|
2b533e775a |
Revert "mtd: maps: remove uclinux map driver"
The uclinux MTD map driver is still actively used on ColdFire (m68k)
platforms. The ColdFire startup code in arch/m68k/coldfire/head.S copies
an attached filesystem blob to _bss_stop, and the uclinux driver picks
it up from there. Most ColdFire defconfigs enable CONFIG_MTD_UCLINUX, as
the driver seems to serve as a replacement for CONFIG_BLK_DEV_INITRD on
these non-MMU targets.
The driver was removed as part of a series cleaning up AMD Élan specific
drivers, but unlike the other three drivers in that series, this driver
seemed to not be as Élan specific (nor unused) as initially thought.
This reverts commit
|
||
|
Pengpeng Hou
|
d03a19bd6c |
mtd: onenand: samsung: report DMA completion timeouts
The S5PC110 OneNAND DMA helpers have bounded waits for transfer
completion. The polling helper falls out of its timeout loop and returns
success, and the IRQ helper ignores wait_for_completion_timeout().
Return -ETIMEDOUT when the DMA transfer-done bit or completion does not
arrive before the timeout so callers can treat the buffer transfer as
failed.
Fixes:
|