| CVE |
Vendors |
Products |
Updated |
CVSS v3.1 |
| In the Linux kernel, the following vulnerability has been resolved:
KVM: arm64: nv: Inject SEA if kvm_translate_vncr() can't resolve PFN
kvm_handle_vncr_abort() assumes that s1_walk_result conveys an abort
when kvm_translate_vncr() returns -EFAULT. This is not always the case
as it's possible to encounter 'late' failures on the output of S1
translation, e.g. a GFN outside of the memslots.
Fix it by preparing an external abort before returning from
kvm_translate_vncr(). Get rid of the BUG_ON() in the fault injection
path while at it. |
| In the Linux kernel, the following vulnerability has been resolved:
hwmon: (ltc4282) Fix reading the minimum alarm voltage
Coverity reports an out-of-bounds access when reading the minimum alarm
voltage for the VGPIO channel. Add the missing return statement to fix
the problem. |
| In the Linux kernel, the following vulnerability has been resolved:
drm/xe/userptr: Hold notifier_lock for write on inject test path
When CONFIG_DRM_XE_USERPTR_INVAL_INJECT=y, xe_pt_svm_userptr_pre_commit()
runs vma_check_userptr() with the svm notifier_lock taken for read. The
test injection causes vma_check_userptr() to call
xe_vma_userptr_force_invalidate(), which feeds into
xe_vma_userptr_do_inval() with drm_gpusvm_ctx.in_notifier=true. That
flag tells drm_gpusvm_unmap_pages() the caller already holds
notifier_lock for write and only asserts the mode. Because the caller
actually holds it for read, the assertion fires:
WARNING: drivers/gpu/drm/drm_gpusvm.c:1669 at \
drm_gpusvm_unmap_pages+0xd4/0x130 [drm_gpusvm_helper]
Call Trace:
xe_vma_userptr_do_inval+0x40d/0xfd0 [xe]
xe_vma_userptr_invalidate_pass1+0x3e6/0x8d0 [xe]
xe_vma_userptr_force_invalidate+0xde/0x290 [xe]
vma_check_userptr.constprop.0+0x1c6/0x220 [xe]
xe_pt_svm_userptr_pre_commit+0x6a3/0xc60 [xe]
...
xe_vm_bind_ioctl+0x3a0a/0x4480 [xe]
Acquire notifier_lock for write in pre-commit when the inject Kconfig
is enabled, via new helpers xe_pt_svm_userptr_notifier_lock()/_unlock().
Rename xe_svm_assert_held_read() to
xe_svm_assert_held_read_or_inject_write() so it asserts the correct
mode under each build configuration. Production builds
(CONFIG_DRM_XE_USERPTR_INVAL_INJECT=n) keep the existing read-mode
behavior bit-for-bit.
(cherry picked from commit 80ccbd97ffee8ad2e73167d826fe7be548364365) |
| In the Linux kernel, the following vulnerability has been resolved:
netfilter: flowtable: avoid num_encaps underflow on bridge VLAN untag
The DEV_PATH_BR_VLAN_UNTAG case post-decrements info->num_encaps
inside WARN_ON_ONCE(). num_encaps is u8, so if it's already 0 the
decrement still happens and wraps it to 255. The break only leaves
the inner switch -- a later path entry can set info->indev back to
a real device, and we end up returning with num_encaps == 255.
nft_dev_forward_path() then walks info.encap[] (size 2) up to
num_encaps, which means an OOB stack read and a bogus count copied
into the route descriptor.
Should only happen on a malformed bridge path stack, hence the WARN,
but worth handling sanely. Move the decrement out of the WARN.
[ While at this, remove the WARN_ON_ONCE since this can only happen
with a buggy bridge path stack --pablo ]. |
| In the Linux kernel, the following vulnerability has been resolved:
netfilter: synproxy: fix unaligned memory access in timestamp adjustment
Use get_unaligned_be32() and put_unaligned_be32() to safely read and
write the timestamp fields. This prevents performance degradation due to
unaligned memory access or even a crash on strict alignment
architectures.
This follows the implementation of timestamp parsing in the networking
stack at tcp_parse_options() and synproxy_parse_options(). |
| In the Linux kernel, the following vulnerability has been resolved:
scsi: hisi_sas: Add slave_destroy interface for v3 hw
WARNING is triggered when executing link reset of remote PHY and rmmod
SAS driver simultaneously. Following is the WARNING log:
WARNING: CPU: 61 PID: 21818 at drivers/base/core.c:1347 __device_links_no_driver+0xb4/0xc0
Call trace:
__device_links_no_driver+0xb4/0xc0
device_links_driver_cleanup+0xb0/0xfc
__device_release_driver+0x198/0x23c
device_release_driver+0x38/0x50
bus_remove_device+0x130/0x140
device_del+0x184/0x434
__scsi_remove_device+0x118/0x150
scsi_remove_target+0x1bc/0x240
sas_rphy_remove+0x90/0x94
sas_rphy_delete+0x24/0x3c
sas_destruct_devices+0x64/0xa0 [libsas]
sas_revalidate_domain+0xe4/0x150 [libsas]
process_one_work+0x1e0/0x46c
worker_thread+0x15c/0x464
kthread+0x160/0x170
ret_from_fork+0x10/0x20
---[ end trace 71e059eb58f85d4a ]---
During SAS phy up, link->status is set to DL_STATE_AVAILABLE in
device_links_driver_bound, then this setting influences
__device_links_no_driver() before driver rmmod and caused WARNING.
Add the slave_destroy interface to make sure link is removed after flush
workque. |
| In the Linux kernel, the following vulnerability has been resolved:
libbpf: Reject non-exclusive metadata maps in the signed loader
The loader verifies map->sha against the metadata hash in its
instructions. map->sha is calculated when BPF_OBJ_GET_INFO_BY_FD is
called on the frozen map.
While the map is frozen, the /signed loader/ must also ensure the map
is exclusive, as, without exclusivity (which a hostile host could just
omit when loading the loader), another BPF program with map access can
mutate the contents afterwards, so the check passes on stale data.
With the extra check as part of the signed loader, it now refuses to
move on with map->sha validation if the host set it up wrongly. |
| In the Linux kernel, the following vulnerability has been resolved:
i2c: amd-mp2: Unregister callback on adapter add failure
amd_mp2_register_cb() stores the platform I2C context in the MP2 PCI
driver's callback table before the adapter is registered. If
i2c_add_adapter() fails, probe returns and devres frees the context,
but the PCI driver can still dereference the stale pointer from its IRQ
and system-sleep callbacks.
Unregister the callback before returning the adapter registration error. |
| In the Linux kernel, the following vulnerability has been resolved:
s390/zcrypt: Fix wrong domain value verification with EP11 CPRBs
There is a wrong upper limit check for the domain value when an EP11
CPRB is processed for sending to a crypto card. This check is only
active on custom device nodes but may lead to access heap memory
behind perms->adm when an administrative CPRB is sent.
Add correct limit (AP_DOMAINS = 256) checking to fix this. |
| In the Linux kernel, the following vulnerability has been resolved:
ipvs: do not propagate one-packet flag to synced conns
Synced connections can be created before their destination exists. When
the destination is later added, ip_vs_bind_dest() copies connection flags
from the destination into cp->flags.
IP_VS_CONN_F_ONE_PACKET connections are not synced. If a synced
connection inherits IP_VS_CONN_F_ONE_PACKET while it is already hashed,
expiry can treat it as a one-packet connection and skip unlinking the
existing conn_tab node, leaving stale hash nodes pointing at a freed
struct ip_vs_conn.
Drop IP_VS_CONN_F_ONE_PACKET from destination flags when binding synced
connections. |
| In the Linux kernel, the following vulnerability has been resolved:
wifi: mac80211: validate individual TWT params before driver setup
ieee80211_process_rx_twt_action() only partially validates a received
S1G TWT setup frame before queueing it.
An individual agreement can therefore reach ieee80211_s1g_rx_twt_setup()
with twt->length too short for the full struct ieee80211_twt_params.
The individual path passes twt to drv_add_twt_setup(). Both the tracepoint
and the driver callback consume the complete parameters block, not merely
req_type. Do not pass a short individual agreement to the driver.
Broadcast agreements remain unchanged because they are rejected locally
after accessing only req_type.
[edit commit message to not overclaim lack of validation nor
understate driver impact] |
| In the Linux kernel, the following vulnerability has been resolved:
ALSA: seq: oss: Serialize readq reset state with q->lock
snd_seq_oss_readq_clear() resets qlen, head, and tail without
q->lock even though the normal reader and producer paths serialize the
same ring state under that spinlock. A reset can therefore race
snd_seq_oss_readq_free() or snd_seq_oss_readq_put_event() and leave
stale records in the queue, drop freshly queued ones, or report the
wrong readiness after wakeup. KCSAN reports a data race between
snd_seq_oss_readq_clear() and snd_seq_oss_readq_free().
Take q->lock while clearing the ring and resetting input_time. Factor
the enqueue logic into a caller-locked helper so
snd_seq_oss_readq_put_timestamp() updates its suppression state under
the same lock instead of racing the reset path.
The buggy scenario involves two paths, with each column showing the
order within that path:
reset path: locked readq updater:
1. snd_seq_oss_reset() or 1. A reader or callback producer
release reaches takes q->lock on the same queue.
snd_seq_oss_readq_clear().
2. snd_seq_oss_readq_clear() 2. The updater tests or modifies
resets qlen, head, tail, qlen, head, and tail.
and input_time.
3. snd_seq_oss_readq_clear() 3. The updater completes its
wakes sleepers on read-modify-write sequence.
q->midi_sleep.
4. Without q->lock, the reset 4. The resulting ring state drives
can overlap the locked later reads and readiness.
update.
KCSAN reports:
BUG: KCSAN: data-race in snd_seq_oss_readq_clear /
snd_seq_oss_readq_free
write to 0xffff8881069fe608 of 4 bytes by task 120516 on cpu 0:
snd_seq_oss_readq_free+0x6c/0x80
snd_seq_oss_read+0xcb/0x250
odev_read+0x38/0x60
vfs_read+0xff/0x600
ksys_read+0xb4/0x140
__x64_sys_read+0x46/0x60
do_syscall_64+0xbb/0x2f0
entry_SYSCALL_64_after_hwframe+0x77/0x7f
read to 0xffff8881069fe608 of 4 bytes by task 120517 on cpu 1:
snd_seq_oss_readq_clear+0x1f/0x90
snd_seq_oss_reset+0xa7/0xf0
snd_seq_oss_ioctl+0x6f6/0x7e0
odev_ioctl+0x56/0xc0
__x64_sys_ioctl+0xd1/0x120
do_syscall_64+0xbb/0x2f0
entry_SYSCALL_64_after_hwframe+0x77/0x7f
value changed: 0x00000001 -> 0x00000000 |
| In the Linux kernel, the following vulnerability has been resolved:
btrfs: lzo: reject compressed segment that overflows the compressed input
lzo_decompress_bio() validates each on-disk segment length seg_len only
against the workspace cbuf size, not against the compressed input size
(compressed_len, the total folio bytes of the bio). A crafted extent can
carry a segment whose seg_len passes the cbuf check but runs past the end
of the bio, so copy_compressed_segment() walks off the last folio:
get_current_folio() then returns the NULL folio from bio_next_folio(), and
with CONFIG_BTRFS_ASSERT disabled (default) folio_size(NULL) faults.
BUG: KASAN: null-ptr-deref in lzo_decompress_bio (fs/btrfs/lzo.c:383)
Read of size 8 at addr 0000000000000000 by task kworker/u8:1/29
Workqueue: btrfs-endio simple_end_io_work
kasan_report (mm/kasan/report.c:590)
lzo_decompress_bio (fs/btrfs/lzo.c:383)
end_bbio_compressed_read (fs/btrfs/compression.c:1065)
btrfs_bio_end_io (fs/btrfs/bio.c:135)
btrfs_check_read_bio (fs/btrfs/bio.c:180 fs/btrfs/bio.c:285)
simple_end_io_work
process_one_work
worker_thread
Reject any segment whose payload would extend beyond compressed_len before
copying it, treating it as corruption like the other on-disk validation
failures in this function. |
| In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_conntrack_expect: use conntrack GC to reap expectations
This patch replaces the timer API by GC worker approach for
expectations, as it already happened in many other subsystems.
Use the existing conntrack GC worker to iterate over the local list of
expectations in the master conntrack to reap expired expectations.
Check IPS_HELPER_BIT to run GC for expectations, set it on for nft_ct
expectation which nevers sets it. Hold the expectation spinlock while
iterating over the master conntrack expectation list to synchronize with
nf_ct_remove_expectations(). This also performs runtime packet path
garbage collection through the expectation insertion and lookup
functions while walking over one of the chains of the global expectation
hashtables. Unconfirmed conntrack entries are skipped since ct->ext can
be reallocated and dying are skipped since those will be gone soon.
Set on IPS_HELPER_BIT if the helper ct extension is added, then the new
GC worker does not need to bump the ct refcount to check if the ct->ext
helper is available.
This removes the extra bump on the refcount for expectation timers, this
allows to remove several nf_ct_expect_put() calls after the unlink,
after this update only refcount remains at 1 while on the expectation
hashes.
This patch implicitly addresses a race with the existing timer API
allowing an expectation to access a stale exp->master pointer which has
been already released when expectation removal loses races with an
expiring timer, ie. timer_del() reporting false.
Add a new NF_CT_EXPECT_DEAD flag to reap this expectation via GC. This
is needed by nf_conntrack_unexpect_related() which is called in error
paths to invalidate newly created expectations that has been added into
the hashes. These expectactions cannot be inmediately released as GC or
nf_ct_remove_expectations() could race to make it. On expectation
insert, the runtime GC reaps stale expectations before checking the
expectation limit set by policy.
Set current timestamp in nf_ct_expect_alloc(), then add the expectation
policy timeout (or custom timeout specified added on top of this) to
specify the expectation lifetime. |
| In the Linux kernel, the following vulnerability has been resolved:
ntfs: fix u16 truncation of restart-area length check
ntfs_check_restart_area() validates that the $LogFile restart area and
its trailing log client record array fit within the system page size:
u16 ra_ofs, ra_len, ca_ofs;
...
ra_len = ca_ofs + le16_to_cpu(ra->log_clients) *
sizeof(struct log_client_record);
if (ra_ofs + ra_len > le32_to_cpu(rp->system_page_size) || ...)
return false;
ra_len is u16, but the right-hand side is computed in size_t
(sizeof(struct log_client_record) == 160). Both ca_ofs and log_clients
come straight from the on-disk restart area. With an on-disk
log_clients of 410 the product 410 * 160 = 65600; adding ca_ofs and
storing into the u16 ra_len truncates modulo 65536 (e.g. ca_ofs 64
gives ra_len 128), so the "fits in the page" check passes even though
the client array described by log_clients extends far beyond the page.
ntfs_check_log_client_array() then walks the array bounded only by the
on-disk log_clients count:
cr = ca + idx;
if (cr->prev_client != LOGFILE_NO_CLIENT) ...
For log_clients 410 it dereferences records up to ca + 409 * 160,
~64 KiB past the kvzalloc(system_page_size) restart-page buffer -- an
out-of-bounds read of attacker-controlled extent, reachable when a
crafted NTFS image is mounted (load_and_check_logfile() at mount time).
This is the in-kernel analogue of CVE-2022-30789, fixed in the ntfs-3g
userspace driver but never in this revived classic driver.
Compute the restart-area length in a u32 so the existing bounds check
rejects an over-large client array instead of being defeated by the
truncation. Widen ra_ofs and ca_ofs to u32 as well: both are loaded
from __le16 on-disk fields and every comparison already promotes to
int/size_t, so this changes no result and keeps the declaration uniform. |
| In the Linux kernel, the following vulnerability has been resolved:
of: reserved_mem: prevent OOB when too many dynamic regions are defined
On boot, fdt_scan_reserved_mem() saves each dynamically-placed
/reserved-memory subnode into a local array of size
MAX_RESERVED_REGIONS.
If the device tree defines more than MAX_RESERVED_REGIONS
dynamically-placed regions, fdt_scan_reserved_mem() writes past the
end of the local array.
Add a bounds check that logs an error and skips the excess regions,
restoring the original behavior. |
| In the Linux kernel, the following vulnerability has been resolved:
wifi: wcn36xx: fix OOB read from short trigger BA firmware response
The firmware response length is only checked against sizeof(*rsp) (20
bytes), but when candidate_cnt >= 1, a 22-byte candidate struct is read
at buf + 20 without verifying the response contains it. This causes an
out-of-bounds read of stale heap data, corrupting the BA session state.
Add validation that the response includes the candidate data. |
| In the Linux kernel, the following vulnerability has been resolved:
ocfs2: fix out-of-bounds write in ocfs2_remove_refcount_extent
[BUG]
Unlinking a refcounted file whose refcount tree has leaf blocks
triggers a fortify panic due to an out-of-bounds write.
[CAUSE]
When the last leaf block is removed from a refcount tree,
ocfs2_remove_refcount_extent() converts the root back to leaf mode
with a bulk memset on &rb->rf_records. rf_records sits in an anonymous
union with rf_list. rf_list.l_tree_depth aliases rf_records.rl_count,
and is 0 for a single-level tree. With rl_count equal to 0, the memset
writes past the 16-byte declared size of rf_records, which the fortify
checker catches.
[FIX]
Replace the bulk memset on &rb->rf_records with a correctly-bounded
memset on rl_recs[] alone, after setting rl_count to the correct value. |
| In the Linux kernel, the following vulnerability has been resolved:
rapidio/tsi721: prevent a bad dereference in tsi721_db_dpc()
With a list_for_each() loop, if we don't find the item we are looking for
in the list, then the loop exits with the iterator, which is "dbell" in
this loop, pointing to invalid memory.
This code uses the "found" variable to determine if we have found the
doorbell we are looking for or not. However, the problem that the "found"
variable needs to be set to false at the start of each iteration,
otherwise after the first correct doorbell, then everything is marked as
found.
Reset the "found" to false at the start of the iteration and move the
variable inside the loop. |
| In the Linux kernel, the following vulnerability has been resolved:
firmware: arm_scmi: Fix OOB in scmi_power_name_get()
scmi_power_name_get() does not validate the domain number passed by the
external caller, which may lead to an out-of-bounds access.
Fix this by returning "unknown" for invalid domains, like
scmi_reset_name_get() does. |
