Средний · CVSS 5.5EPSS 0,16%Нет опубликованного исправления
kcm: fix zero-frag skb in frag_list on partial sendmsg error
In the Linux kernel, the following vulnerability has been resolved:
kcm: fix zero-frag skb in frag_list on partial sendmsg error
Syzkaller reported a warning in kcm_write_msgs() when processing a
message with a zero-fragment skb in the frag_list.
When kcm_sendmsg() fills MAX_SKB_FRAGS fragments in the current skb,
it allocates a new skb (tskb) and links it into the frag_list before
copying data. If the copy subsequently fails (e.g. -EFAULT from
user memory), tskb remains in the frag_list with zero fragments:
head skb (msg being assembled, NOT yet in sk_write_queue)
+-----------+
| frags[17] | (MAX_SKB_FRAGS, all filled with data)
In the Linux kernel, the following vulnerability has been resolved:
ntb: ntb_hw_switchtec: Fix array-index-out-of-bounds access
Number of MW LUTs depends on NTB configuration and can be set to MAX_MWS,
This patch protects against invalid index out of bounds access to mw_sizes
When invalid access print message to user that configuration is not valid.
Высокий · CVSS 7.8EPSS 0,14%Нет опубликованного исправления
drm/atmel-hlcdc: fix use-after-free of drm_crtc_commit after release
In the Linux kernel, the following vulnerability has been resolved:
drm/atmel-hlcdc: fix use-after-free of drm_crtc_commit after release
The atmel_hlcdc_plane_atomic_duplicate_state() callback was copying
the atmel_hlcdc_plane state structure without properly duplicating the
drm_plane_state. In particular, state->commit remained set to the old
state commit, which can lead to a use-after-free in the next
drm_atomic_commit() call.
Fix this by calling
__drm_atomic_helper_duplicate_plane_state(), which correctly clones
the base drm_plane_state (including the ->commit pointer).
It has been seen when closing and re-opening the device node while
Средний · CVSS 6.8EPSS 0,16%Нет опубликованного исправления
team: avoid NETDEV_CHANGEMTU event when unregistering slave
In the Linux kernel, the following vulnerability has been resolved:
team: avoid NETDEV_CHANGEMTU event when unregistering slave
syzbot is reporting
unregister_netdevice: waiting for netdevsim0 to become free. Usage count = 3
ref_tracker: netdev@ffff88807dcf8618 has 1/2 users at
__netdev_tracker_alloc include/linux/netdevice.h:4400 [inline]
netdev_hold include/linux/netdevice.h:4429 [inline]
inetdev_init+0x201/0x4e0 net/ipv4/devinet.c:286
inetdev_event+0x251/0x1610 net/ipv4/devinet.c:1600
notifier_call_chain+0x19d/0x3a0 kernel/notifier.c:85
call_netdevice_notifiers_mtu net/core/dev.c:2318 [inlin
Высокий · CVSS 8.2EPSS 0,46%Нет опубликованного исправления
netfilter: nf_conntrack_h323: fix OOB read in decode_choice()
In the Linux kernel, the following vulnerability has been resolved:
netfilter: nf_conntrack_h323: fix OOB read in decode_choice()
In decode_choice(), the boundary check before get_len() uses the
variable `len`, which is still 0 from its initialization at the top of
the function:
unsigned int type, ext, len = 0;
...
if (ext || (son->attr & OPEN)) {
BYTE_ALIGN(bs);
if (nf_h323_error_boundary(bs, len, 0)) /* len is 0 here */
return H323_ERROR_BOUND;
len = get_len(bs); /* OOB read */
When the bitstream is exactly consumed (bs->cur == bs->end), the check
nf_h323_error_boun
Высокий · CVSS 8.8EPSS 0,39%Нет опубликованного исправления
net: wan: farsync: Fix use-after-free bugs caused by unfinished tasklets
In the Linux kernel, the following vulnerability has been resolved:
net: wan: farsync: Fix use-after-free bugs caused by unfinished tasklets
When the FarSync T-series card is being detached, the fst_card_info is
deallocated in fst_remove_one(). However, the fst_tx_task or fst_int_task
may still be running or pending, leading to use-after-free bugs when the
already freed fst_card_info is accessed in fst_process_tx_work_q() or
fst_process_int_work_q().
A typical race condition is depicted below:
CPU 0 (cleanup) | CPU 1 (tasklet)
| fst_start_xmit()
fst_remove_one() | tasklet_schedule()
unregis
Средний · CVSS 5.5EPSS 0,13%Нет опубликованного исправления
media: radio-keene: fix memory leak in error path
In the Linux kernel, the following vulnerability has been resolved:
media: radio-keene: fix memory leak in error path
Fix a memory leak in usb_keene_probe(). The v4l2 control handler is
initialized and controls are added, but if v4l2_device_register() or
video_register_device() fails afterward, the handler was never freed,
leaking memory.
Add v4l2_ctrl_handler_free() call in the err_v4l2 error path to ensure
the control handler is properly freed for all error paths after it is
initialized.
Высокий · CVSS 7.5EPSS 0,52%Нет опубликованного исправления
net/rds: Clear reconnect pending bit
In the Linux kernel, the following vulnerability has been resolved:
net/rds: Clear reconnect pending bit
When canceling the reconnect worker, care must be taken to reset the
reconnect-pending bit. If the reconnect worker has not yet been
scheduled before it is canceled, the reconnect-pending bit will stay
on forever.
Средний · CVSS 5.5EPSS 0,12%Нет опубликованного исправления
clocksource/drivers/sh_tmu: Always leave device running after probe
In the Linux kernel, the following vulnerability has been resolved:
clocksource/drivers/sh_tmu: Always leave device running after probe
The TMU device can be used as both a clocksource and a clockevent
provider. The driver tries to be smart and power itself on and off, as
well as enabling and disabling its clock when it's not in operation.
This behavior is slightly altered if the TMU is used as an early
platform device in which case the device is left powered on after probe,
but the clock is still enabled and disabled at runtime.
This has worked for a long time, but recent improvements in PREEMPT_RT
and PROVE_LOCKING have highlighted an is
Высокий · CVSS 7.5EPSS 0,52%Нет опубликованного исправления
net/rds: No shortcut out of RDS_CONN_ERROR
In the Linux kernel, the following vulnerability has been resolved:
net/rds: No shortcut out of RDS_CONN_ERROR
RDS connections carry a state "rds_conn_path::cp_state"
and transitions from one state to another and are conditional
upon an expected state: "rds_conn_path_transition."
There is one exception to this conditionality, which is
"RDS_CONN_ERROR" that can be enforced by "rds_conn_path_drop"
regardless of what state the condition is currently in.
But as soon as a connection enters state "RDS_CONN_ERROR",
the connection handling code expects it to go through the
shutdown-path.
The RDS/TCP multipath changes added a shortcut out of
"RDS
Средний · CVSS 5.5EPSS 0,13%Нет опубликованного исправления
staging: rtl8723bs: fix memory leak on failure path
In the Linux kernel, the following vulnerability has been resolved:
staging: rtl8723bs: fix memory leak on failure path
cfg80211_inform_bss_frame() may return NULL on failure. In that case,
the allocated buffer 'buf' is not freed and the function returns early,
leading to potential memory leak.
Fix this by ensuring that 'buf' is freed on both success and failure paths.
Средний · CVSS 5.5EPSS 0,13%Нет опубликованного исправления
media: pvrusb2: fix URB leak in pvr2_send_request_ex
In the Linux kernel, the following vulnerability has been resolved:
media: pvrusb2: fix URB leak in pvr2_send_request_ex
When pvr2_send_request_ex() submits a write URB successfully but fails to
submit the read URB (e.g. returns -ENOMEM), it returns immediately without
waiting for the write URB to complete. Since the driver reuses the same
URB structure, a subsequent call to pvr2_send_request_ex() attempts to
submit the still-active write URB, triggering a 'URB submitted while
active' warning in usb_submit_urb().
Fix this by ensuring the write URB is unlinked and waited upon if the read
URB submission fails.
Средний · CVSS 5.5EPSS 0,13%Нет опубликованного исправления
media: i2c/tw9903: Fix potential memory leak in tw9903_probe()
In the Linux kernel, the following vulnerability has been resolved:
media: i2c/tw9903: Fix potential memory leak in tw9903_probe()
In one of the error paths in tw9903_probe(), the memory allocated in
v4l2_ctrl_handler_init() and v4l2_ctrl_new_std() is not freed. Fix that
by calling v4l2_ctrl_handler_free() on the handler in that error path.
Средний · CVSS 5.5EPSS 0,14%Нет опубликованного исправления
net: Drop the lock in skb_may_tx_timestamp()
In the Linux kernel, the following vulnerability has been resolved:
net: Drop the lock in skb_may_tx_timestamp()
skb_may_tx_timestamp() may acquire sock::sk_callback_lock. The lock must
not be taken in IRQ context, only softirq is okay. A few drivers receive
the timestamp via a dedicated interrupt and complete the TX timestamp
from that handler. This will lead to a deadlock if the lock is already
write-locked on the same CPU.
Taking the lock can be avoided. The socket (pointed by the skb) will
remain valid until the skb is released. The ->sk_socket and ->file
member will be set to NULL once the user closes the socket which may
happen befor
Высокий · CVSS 7.8EPSS 0,11%Нет опубликованного исправления
PCI: Fix pci_slot_trylock() error handling
In the Linux kernel, the following vulnerability has been resolved:
PCI: Fix pci_slot_trylock() error handling
Commit a4e772898f8b ("PCI: Add missing bridge lock to pci_bus_lock()")
delegates the bridge device's pci_dev_trylock() to pci_bus_trylock() in
pci_slot_trylock(), but it forgets to remove the corresponding
pci_dev_unlock() when pci_bus_trylock() fails.
Before a4e772898f8b, the code did:
if (!pci_dev_trylock(dev)) /* <- lock bridge device */
goto unlock;
if (dev->subordinate) {
if (!pci_bus_trylock(dev->subordinate)) {
pci_dev_unlock(dev); /* <- unlock bridge device */
goto unlock;
}
}
After a4e772
Средний · CVSS 5.5EPSS 0,13%Нет опубликованного исправления
minix: Add required sanity checking to minix_check_superblock()
In the Linux kernel, the following vulnerability has been resolved:
minix: Add required sanity checking to minix_check_superblock()
The fs/minix implementation of the minix filesystem does not currently
support any other value for s_log_zone_size than 0. This is also the
only value supported in util-linux; see mkfs.minix.c line 511. In
addition, this patch adds some sanity checking for the other minix
superblock fields, and moves the minix_blocks_needed() checks for the
zmap and imap also to minix_check_super_block().
This also closes a related syzbot bug report.
Высокий · CVSS 7.8EPSS 0,14%Нет опубликованного исправления
media: mtk-mdp: Fix error handling in probe function
In the Linux kernel, the following vulnerability has been resolved:
media: mtk-mdp: Fix error handling in probe function
Add mtk_mdp_unregister_m2m_device() on the error handling path to prevent
resource leak.
Add check for the return value of vpu_get_plat_device() to prevent null
pointer dereference. And vpu_get_plat_device() increases the reference
count of the returned platform device. Add platform_device_put() to
prevent reference leak.
Высокий · CVSS 7.8EPSS 0,14%Нет опубликованного исправления
drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set()
In the Linux kernel, the following vulnerability has been resolved:
drm/amdkfd: Fix out-of-bounds write in kfd_event_page_set()
The kfd_event_page_set() function writes KFD_SIGNAL_EVENT_LIMIT * 8
bytes via memset without checking the buffer size parameter. This allows
unprivileged userspace to trigger an out-of bounds kernel memory write
by passing a small buffer, leading to potential privilege
escalation.
Средний · CVSS 5.8EPSS 0,16%Нет опубликованного исправления
ASoC: qcom: q6asm: drop DSP responses for closed data streams
In the Linux kernel, the following vulnerability has been resolved:
ASoC: qcom: q6asm: drop DSP responses for closed data streams
'Commit a354f030dbce ("ASoC: qcom: q6asm: handle the responses
after closing")' attempted to ignore DSP responses arriving
after a stream had been closed.
However, those responses were still handled, causing lockups.
Fix this by unconditionally dropping all DSP responses associated with
closed data streams.
Высокий · CVSS 7.5EPSS 0,4%Нет опубликованного исправления
atm: fore200e: fix use-after-free in tasklets during device removal
In the Linux kernel, the following vulnerability has been resolved:
atm: fore200e: fix use-after-free in tasklets during device removal
When the PCA-200E or SBA-200E adapter is being detached, the fore200e
is deallocated. However, the tx_tasklet or rx_tasklet may still be running
or pending, leading to use-after-free bug when the already freed fore200e
is accessed again in fore200e_tx_tasklet() or fore200e_rx_tasklet().
One of the race conditions can occur as follows:
CPU 0 (cleanup) | CPU 1 (tasklet)
fore200e_pca_remove_one() | fore200e_interrupt()
fore200e_shutdown() | tasklet_schedule()
kfree(fore200e) | for