| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| In the Linux kernel, the following vulnerability has been resolved:
sch_htb: make htb_qlen_notify() idempotent
htb_qlen_notify() always deactivates the HTB class and in fact could
trigger a warning if it is already deactivated. Therefore, it is not
idempotent and not friendly to its callers, like fq_codel_dequeue().
Let's make it idempotent to ease qdisc_tree_reduce_backlog() callers'
life. |
| In the Linux kernel, the following vulnerability has been resolved:
dm-bufio: don't schedule in atomic context
A BUG was reported as below when CONFIG_DEBUG_ATOMIC_SLEEP and
try_verify_in_tasklet are enabled.
[ 129.444685][ T934] BUG: sleeping function called from invalid context at drivers/md/dm-bufio.c:2421
[ 129.444723][ T934] in_atomic(): 1, irqs_disabled(): 0, non_block: 0, pid: 934, name: kworker/1:4
[ 129.444740][ T934] preempt_count: 201, expected: 0
[ 129.444756][ T934] RCU nest depth: 0, expected: 0
[ 129.444781][ T934] Preemption disabled at:
[ 129.444789][ T934] [<ffffffd816231900>] shrink_work+0x21c/0x248
[ 129.445167][ T934] kernel BUG at kernel/sched/walt/walt_debug.c:16!
[ 129.445183][ T934] Internal error: Oops - BUG: 00000000f2000800 [#1] PREEMPT SMP
[ 129.445204][ T934] Skip md ftrace buffer dump for: 0x1609e0
[ 129.447348][ T934] CPU: 1 PID: 934 Comm: kworker/1:4 Tainted: G W OE 6.6.56-android15-8-o-g6f82312b30b9-debug #1 1400000003000000474e5500b3187743670464e8
[ 129.447362][ T934] Hardware name: Qualcomm Technologies, Inc. Parrot QRD, Alpha-M (DT)
[ 129.447373][ T934] Workqueue: dm_bufio_cache shrink_work
[ 129.447394][ T934] pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
[ 129.447406][ T934] pc : android_rvh_schedule_bug+0x0/0x8 [sched_walt_debug]
[ 129.447435][ T934] lr : __traceiter_android_rvh_schedule_bug+0x44/0x6c
[ 129.447451][ T934] sp : ffffffc0843dbc90
[ 129.447459][ T934] x29: ffffffc0843dbc90 x28: ffffffffffffffff x27: 0000000000000c8b
[ 129.447479][ T934] x26: 0000000000000040 x25: ffffff804b3d6260 x24: ffffffd816232b68
[ 129.447497][ T934] x23: ffffff805171c5b4 x22: 0000000000000000 x21: ffffffd816231900
[ 129.447517][ T934] x20: ffffff80306ba898 x19: 0000000000000000 x18: ffffffc084159030
[ 129.447535][ T934] x17: 00000000d2b5dd1f x16: 00000000d2b5dd1f x15: ffffffd816720358
[ 129.447554][ T934] x14: 0000000000000004 x13: ffffff89ef978000 x12: 0000000000000003
[ 129.447572][ T934] x11: ffffffd817a823c4 x10: 0000000000000202 x9 : 7e779c5735de9400
[ 129.447591][ T934] x8 : ffffffd81560d004 x7 : 205b5d3938373434 x6 : ffffffd8167397c8
[ 129.447610][ T934] x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffffffc0843db9e0
[ 129.447629][ T934] x2 : 0000000000002f15 x1 : 0000000000000000 x0 : 0000000000000000
[ 129.447647][ T934] Call trace:
[ 129.447655][ T934] android_rvh_schedule_bug+0x0/0x8 [sched_walt_debug 1400000003000000474e550080cce8a8a78606b6]
[ 129.447681][ T934] __might_resched+0x190/0x1a8
[ 129.447694][ T934] shrink_work+0x180/0x248
[ 129.447706][ T934] process_one_work+0x260/0x624
[ 129.447718][ T934] worker_thread+0x28c/0x454
[ 129.447729][ T934] kthread+0x118/0x158
[ 129.447742][ T934] ret_from_fork+0x10/0x20
[ 129.447761][ T934] Code: ???????? ???????? ???????? d2b5dd1f (d4210000)
[ 129.447772][ T934] ---[ end trace 0000000000000000 ]---
dm_bufio_lock will call spin_lock_bh when try_verify_in_tasklet
is enabled, and __scan will be called in atomic context. |
| In the Linux kernel, the following vulnerability has been resolved:
book3s64/radix : Align section vmemmap start address to PAGE_SIZE
A vmemmap altmap is a device-provided region used to provide
backing storage for struct pages. For each namespace, the altmap
should belong to that same namespace. If the namespaces are
created unaligned, there is a chance that the section vmemmap
start address could also be unaligned. If the section vmemmap
start address is unaligned, the altmap page allocated from the
current namespace might be used by the previous namespace also.
During the free operation, since the altmap is shared between two
namespaces, the previous namespace may detect that the page does
not belong to its altmap and incorrectly assume that the page is a
normal page. It then attempts to free the normal page, which leads
to a kernel crash.
Kernel attempted to read user page (18) - exploit attempt? (uid: 0)
BUG: Kernel NULL pointer dereference on read at 0x00000018
Faulting instruction address: 0xc000000000530c7c
Oops: Kernel access of bad area, sig: 11 [#1]
LE PAGE_SIZE=64K MMU=Radix SMP NR_CPUS=2048 NUMA pSeries
CPU: 32 PID: 2104 Comm: ndctl Kdump: loaded Tainted: G W
NIP: c000000000530c7c LR: c000000000530e00 CTR: 0000000000007ffe
REGS: c000000015e57040 TRAP: 0300 Tainted: G W
MSR: 800000000280b033 <SF,VEC,VSX,EE,FP,ME,IR,DR,RI,LE> CR: 84482404
CFAR: c000000000530dfc DAR: 0000000000000018 DSISR: 40000000 IRQMASK: 0
GPR00: c000000000530e00 c000000015e572e0 c000000002c5cb00 c00c000101008040
GPR04: 0000000000000000 0000000000000007 0000000000000001 000000000000001f
GPR08: 0000000000000005 0000000000000000 0000000000000018 0000000000002000
GPR12: c0000000001d2fb0 c0000060de6b0080 0000000000000000 c0000060dbf90020
GPR16: c00c000101008000 0000000000000001 0000000000000000 c000000125b20f00
GPR20: 0000000000000001 0000000000000000 ffffffffffffffff c00c000101007fff
GPR24: 0000000000000001 0000000000000000 0000000000000000 0000000000000000
GPR28: 0000000004040201 0000000000000001 0000000000000000 c00c000101008040
NIP [c000000000530c7c] get_pfnblock_flags_mask+0x7c/0xd0
LR [c000000000530e00] free_unref_page_prepare+0x130/0x4f0
Call Trace:
free_unref_page+0x50/0x1e0
free_reserved_page+0x40/0x68
free_vmemmap_pages+0x98/0xe0
remove_pte_table+0x164/0x1e8
remove_pmd_table+0x204/0x2c8
remove_pud_table+0x1c4/0x288
remove_pagetable+0x1c8/0x310
vmemmap_free+0x24/0x50
section_deactivate+0x28c/0x2a0
__remove_pages+0x84/0x110
arch_remove_memory+0x38/0x60
memunmap_pages+0x18c/0x3d0
devm_action_release+0x30/0x50
release_nodes+0x68/0x140
devres_release_group+0x100/0x190
dax_pmem_compat_release+0x44/0x80 [dax_pmem_compat]
device_for_each_child+0x8c/0x100
[dax_pmem_compat_remove+0x2c/0x50 [dax_pmem_compat]
nvdimm_bus_remove+0x78/0x140 [libnvdimm]
device_remove+0x70/0xd0
Another issue is that if there is no altmap, a PMD-sized vmemmap
page will be allocated from RAM, regardless of the alignment of
the section start address. If the section start address is not
aligned to the PMD size, a VM_BUG_ON will be triggered when
setting the PMD-sized page to page table.
In this patch, we are aligning the section vmemmap start address
to PAGE_SIZE. After alignment, the start address will not be
part of the current namespace, and a normal page will be allocated
for the vmemmap mapping of the current section. For the remaining
sections, altmaps will be allocated. During the free operation,
the normal page will be correctly freed.
In the same way, a PMD_SIZE vmemmap page will be allocated only if
the section start address is PMD_SIZE-aligned; otherwise, it will
fall back to a PAGE-sized vmemmap allocation.
Without this patch
==================
NS1 start NS2 start
_________________________________________________________
| NS1 | NS2 |
---------------------------------------------------------
| Altmap| Altmap | .....|Altmap| Altmap | ...........
| NS1 | NS1
---truncated--- |
| In the Linux kernel, the following vulnerability has been resolved:
ASoC: amd: acp: Fix NULL pointer deref in acp_i2s_set_tdm_slot
Update chip data using dev_get_drvdata(dev->parent) to fix
NULL pointer deref in acp_i2s_set_tdm_slot. |
| In the Linux kernel, the following vulnerability has been resolved:
ice: Check VF VSI Pointer Value in ice_vc_add_fdir_fltr()
As mentioned in the commit baeb705fd6a7 ("ice: always check VF VSI
pointer values"), we need to perform a null pointer check on the return
value of ice_get_vf_vsi() before using it. |
| In the Linux kernel, the following vulnerability has been resolved:
accel/ivpu: Fix locking order in ivpu_job_submit
Fix deadlock in job submission and abort handling.
When a thread aborts currently executing jobs due to a fault,
it first locks the global lock protecting submitted_jobs (#1).
After the last job is destroyed, it proceeds to release the related context
and locks file_priv (#2). Meanwhile, in the job submission thread,
the file_priv lock (#2) is taken first, and then the submitted_jobs
lock (#1) is obtained when a job is added to the submitted jobs list.
CPU0 CPU1
---- ----
(for example due to a fault) (jobs submissions keep coming)
lock(&vdev->submitted_jobs_lock) #1
ivpu_jobs_abort_all()
job_destroy()
lock(&file_priv->lock) #2
lock(&vdev->submitted_jobs_lock) #1
file_priv_release()
lock(&vdev->context_list_lock)
lock(&file_priv->lock) #2
This order of locking causes a deadlock. To resolve this issue,
change the order of locking in ivpu_job_submit(). |
| In the Linux kernel, the following vulnerability has been resolved:
bnxt_en: Fix error handling path in bnxt_init_chip()
WARN_ON() is triggered in __flush_work() if bnxt_init_chip() fails
because we call cancel_work_sync() on dim work that has not been
initialized.
WARNING: CPU: 37 PID: 5223 at kernel/workqueue.c:4201 __flush_work.isra.0+0x212/0x230
The driver relies on the BNXT_STATE_NAPI_DISABLED bit to check if dim
work has already been cancelled. But in the bnxt_open() path,
BNXT_STATE_NAPI_DISABLED is not set and this causes the error
path to think that it needs to cancel the uninitalized dim work.
Fix it by setting BNXT_STATE_NAPI_DISABLED during initialization.
The bit will be cleared when we enable NAPI and initialize dim work. |
| In the Linux kernel, the following vulnerability has been resolved:
ASoC: ops: Consistently treat platform_max as control value
This reverts commit 9bdd10d57a88 ("ASoC: ops: Shift tested values in
snd_soc_put_volsw() by +min"), and makes some additional related
updates.
There are two ways the platform_max could be interpreted; the maximum
register value, or the maximum value the control can be set to. The
patch moved from treating the value as a control value to a register
one. When the patch was applied it was technically correct as
snd_soc_limit_volume() also used the register interpretation. However,
even then most of the other usages treated platform_max as a
control value, and snd_soc_limit_volume() has since been updated to
also do so in commit fb9ad24485087 ("ASoC: ops: add correct range
check for limiting volume"). That patch however, missed updating
snd_soc_put_volsw() back to the control interpretation, and fixing
snd_soc_info_volsw_range(). The control interpretation makes more
sense as limiting is typically done from the machine driver, so it is
appropriate to use the customer facing representation rather than the
internal codec representation. Update all the code to consistently use
this interpretation of platform_max.
Finally, also add some comments to the soc_mixer_control struct to
hopefully avoid further patches switching between the two approaches. |
| In the Linux kernel, the following vulnerability has been resolved:
net/mlx5: Fix null-ptr-deref in mlx5_create_{inner_,}ttc_table()
Add NULL check for mlx5_get_flow_namespace() returns in
mlx5_create_inner_ttc_table() and mlx5_create_ttc_table() to prevent
NULL pointer dereference. |
| In the Linux kernel, the following vulnerability has been resolved:
bpf: Fix deadlock between rcu_tasks_trace and event_mutex.
Fix the following deadlock:
CPU A
_free_event()
perf_kprobe_destroy()
mutex_lock(&event_mutex)
perf_trace_event_unreg()
synchronize_rcu_tasks_trace()
There are several paths where _free_event() grabs event_mutex
and calls sync_rcu_tasks_trace. Above is one such case.
CPU B
bpf_prog_test_run_syscall()
rcu_read_lock_trace()
bpf_prog_run_pin_on_cpu()
bpf_prog_load()
bpf_tracing_func_proto()
trace_set_clr_event()
mutex_lock(&event_mutex)
Delegate trace_set_clr_event() to workqueue to avoid
such lock dependency. |
| In the Linux kernel, the following vulnerability has been resolved:
s390/sclp: Add check for get_zeroed_page()
Add check for the return value of get_zeroed_page() in
sclp_console_init() to prevent null pointer dereference.
Furthermore, to solve the memory leak caused by the loop
allocation, add a free helper to do the free job. |
| In the Linux kernel, the following vulnerability has been resolved:
perf/core: Fix WARN_ON(!ctx) in __free_event() for partial init
Move the get_ctx(child_ctx) call and the child_event->ctx assignment to
occur immediately after the child event is allocated. Ensure that
child_event->ctx is non-NULL before any subsequent error path within
inherit_event calls free_event(), satisfying the assumptions of the
cleanup code.
Details:
There's no clear Fixes tag, because this bug is a side-effect of
multiple interacting commits over time (up to 15 years old), not
a single regression.
The code initially incremented refcount then assigned context
immediately after the child_event was created. Later, an early
validity check for child_event was added before the
refcount/assignment. Even later, a WARN_ON_ONCE() cleanup check was
added, assuming event->ctx is valid if the pmu_ctx is valid.
The problem is that the WARN_ON_ONCE() could trigger after the initial
check passed but before child_event->ctx was assigned, violating its
precondition. The solution is to assign child_event->ctx right after
its initial validation. This ensures the context exists for any
subsequent checks or cleanup routines, resolving the WARN_ON_ONCE().
To resolve it, defer the refcount update and child_event->ctx assignment
directly after child_event->pmu_ctx is set but before checking if the
parent event is orphaned. The cleanup routine depends on
event->pmu_ctx being non-NULL before it verifies event->ctx is
non-NULL. This also maintains the author's original intent of passing
in child_ctx to find_get_pmu_context before its refcount/assignment.
[ mingo: Expanded the changelog from another email by Gabriel Shahrouzi. ] |
| In the Linux kernel, the following vulnerability has been resolved:
iommu: Clear iommu-dma ops on cleanup
If iommu_device_register() encounters an error, it can end up tearing
down already-configured groups and default domains, however this
currently still leaves devices hooked up to iommu-dma (and even
historically the behaviour in this area was at best inconsistent across
architectures/drivers...) Although in the case that an IOMMU is present
whose driver has failed to probe, users cannot necessarily expect DMA to
work anyway, it's still arguable that we should do our best to put
things back as if the IOMMU driver was never there at all, and certainly
the potential for crashing in iommu-dma itself is undesirable. Make sure
we clean up the dev->dma_iommu flag along with everything else. |
| In the Linux kernel, the following vulnerability has been resolved:
igc: fix PTM cycle trigger logic
Writing to clear the PTM status 'valid' bit while the PTM cycle is
triggered results in unreliable PTM operation. To fix this, clear the
PTM 'trigger' and status after each PTM transaction.
The issue can be reproduced with the following:
$ sudo phc2sys -R 1000 -O 0 -i tsn0 -m
Note: 1000 Hz (-R 1000) is unrealistically large, but provides a way to
quickly reproduce the issue.
PHC2SYS exits with:
"ioctl PTP_OFFSET_PRECISE: Connection timed out" when the PTM transaction
fails
This patch also fixes a hang in igc_probe() when loading the igc
driver in the kdump kernel on systems supporting PTM.
The igc driver running in the base kernel enables PTM trigger in
igc_probe(). Therefore the driver is always in PTM trigger mode,
except in brief periods when manually triggering a PTM cycle.
When a crash occurs, the NIC is reset while PTM trigger is enabled.
Due to a hardware problem, the NIC is subsequently in a bad busmaster
state and doesn't handle register reads/writes. When running
igc_probe() in the kdump kernel, the first register access to a NIC
register hangs driver probing and ultimately breaks kdump.
With this patch, igc has PTM trigger disabled most of the time,
and the trigger is only enabled for very brief (10 - 100 us) periods
when manually triggering a PTM cycle. Chances that a crash occurs
during a PTM trigger are not 0, but extremely reduced. |
| In the Linux kernel, the following vulnerability has been resolved:
RDMA/core: Silence oversized kvmalloc() warning
syzkaller triggered an oversized kvmalloc() warning.
Silence it by adding __GFP_NOWARN.
syzkaller log:
WARNING: CPU: 7 PID: 518 at mm/util.c:665 __kvmalloc_node_noprof+0x175/0x180
CPU: 7 UID: 0 PID: 518 Comm: c_repro Not tainted 6.11.0-rc6+ #6
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
RIP: 0010:__kvmalloc_node_noprof+0x175/0x180
RSP: 0018:ffffc90001e67c10 EFLAGS: 00010246
RAX: 0000000000000100 RBX: 0000000000000400 RCX: ffffffff8149d46b
RDX: 0000000000000000 RSI: ffff8881030fae80 RDI: 0000000000000002
RBP: 000000712c800000 R08: 0000000000000100 R09: 0000000000000000
R10: ffffc90001e67c10 R11: 0030ae0601000000 R12: 0000000000000000
R13: 0000000000000000 R14: 00000000ffffffff R15: 0000000000000000
FS: 00007fde79159740(0000) GS:ffff88813bdc0000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000180 CR3: 0000000105eb4005 CR4: 00000000003706b0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<TASK>
ib_umem_odp_get+0x1f6/0x390
mlx5_ib_reg_user_mr+0x1e8/0x450
ib_uverbs_reg_mr+0x28b/0x440
ib_uverbs_write+0x7d3/0xa30
vfs_write+0x1ac/0x6c0
ksys_write+0x134/0x170
? __sanitizer_cov_trace_pc+0x1c/0x50
do_syscall_64+0x50/0x110
entry_SYSCALL_64_after_hwframe+0x76/0x7e |
| In the Linux kernel, the following vulnerability has been resolved:
HID: pidff: Fix null pointer dereference in pidff_find_fields
This function triggered a null pointer dereference if used to search for
a report that isn't implemented on the device. This happened both for
optional and required reports alike.
The same logic was applied to pidff_find_special_field and although
pidff_init_fields should return an error earlier if one of the required
reports is missing, future modifications could change this logic and
resurface this possible null pointer dereference again.
LKML bug report:
https://lore.kernel.org/all/CAL-gK7f5=R0nrrQdPtaZZr1fd-cdAMbDMuZ_NLA8vM0SX+nGSw@mail.gmail.com |
| In the Linux kernel, the following vulnerability has been resolved:
page_pool: avoid infinite loop to schedule delayed worker
We noticed the kworker in page_pool_release_retry() was waken
up repeatedly and infinitely in production because of the
buggy driver causing the inflight less than 0 and warning
us in page_pool_inflight()[1].
Since the inflight value goes negative, it means we should
not expect the whole page_pool to get back to work normally.
This patch mitigates the adverse effect by not rescheduling
the kworker when detecting the inflight negative in
page_pool_release_retry().
[1]
[Mon Feb 10 20:36:11 2025] ------------[ cut here ]------------
[Mon Feb 10 20:36:11 2025] Negative(-51446) inflight packet-pages
...
[Mon Feb 10 20:36:11 2025] Call Trace:
[Mon Feb 10 20:36:11 2025] page_pool_release_retry+0x23/0x70
[Mon Feb 10 20:36:11 2025] process_one_work+0x1b1/0x370
[Mon Feb 10 20:36:11 2025] worker_thread+0x37/0x3a0
[Mon Feb 10 20:36:11 2025] kthread+0x11a/0x140
[Mon Feb 10 20:36:11 2025] ? process_one_work+0x370/0x370
[Mon Feb 10 20:36:11 2025] ? __kthread_cancel_work+0x40/0x40
[Mon Feb 10 20:36:11 2025] ret_from_fork+0x35/0x40
[Mon Feb 10 20:36:11 2025] ---[ end trace ebffe800f33e7e34 ]---
Note: before this patch, the above calltrace would flood the
dmesg due to repeated reschedule of release_dw kworker. |
| In the Linux kernel, the following vulnerability has been resolved:
scsi: st: Fix array overflow in st_setup()
Change the array size to follow parms size instead of a fixed value. |
| In the Linux kernel, the following vulnerability has been resolved:
accel/ivpu: Fix PM related deadlocks in MS IOCTLs
Prevent runtime resume/suspend while MS IOCTLs are in progress.
Failed suspend will call ivpu_ms_cleanup() that would try to acquire
file_priv->ms_lock, which is already held by the IOCTLs. |
| In the Linux kernel, the following vulnerability has been resolved:
arm64: mops: Do not dereference src reg for a set operation
The source register is not used for SET* and reading it can result in
a UBSAN out-of-bounds array access error, specifically when the MOPS
exception is taken from a SET* sequence with XZR (reg 31) as the
source. Architecturally this is the only case where a src/dst/size
field in the ESR can be reported as 31.
Prior to 2de451a329cf662b the code in do_el0_mops() was benign as the
use of pt_regs_read_reg() prevented the out-of-bounds access. |
