Linux: >> Linux Kernel >> 6.1.121 Security Vulnerabilities
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Do not return negative stream id for array
[WHY]
resource_stream_to_stream_idx returns an array index and it return -1
when not found; however, -1 is not a valid array index number.
[HOW]
When this happens, call ASSERT(), and return a zero instead.
This fixes an OVERRUN and an NEGATIVE_RETURNS issues reported by Coverity.
CVSS Score
7.8
EPSS Score
0.0
Published
2024-07-30
In the Linux kernel, the following vulnerability has been resolved:
drm/amd/display: Add NULL pointer check for kzalloc
[Why & How]
Check return pointer of kzalloc before using it.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-07-30
In the Linux kernel, the following vulnerability has been resolved:
drm/amdgpu: fix double free err_addr pointer warnings
In amdgpu_umc_bad_page_polling_timeout, the amdgpu_umc_handle_bad_pages
will be run many times so that double free err_addr in some special case.
So set the err_addr to NULL to avoid the warnings.
CVSS Score
4.4
EPSS Score
0.0
Published
2024-07-30
In the Linux kernel, the following vulnerability has been resolved:
leds: an30259a: Use devm_mutex_init() for mutex initialization
In this driver LEDs are registered using devm_led_classdev_register()
so they are automatically unregistered after module's remove() is done.
led_classdev_unregister() calls module's led_set_brightness() to turn off
the LEDs and that callback uses mutex which was destroyed already
in module's remove() so use devm API instead.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-07-30
In the Linux kernel, the following vulnerability has been resolved:
leds: mlxreg: Use devm_mutex_init() for mutex initialization
In this driver LEDs are registered using devm_led_classdev_register()
so they are automatically unregistered after module's remove() is done.
led_classdev_unregister() calls module's led_set_brightness() to turn off
the LEDs and that callback uses mutex which was destroyed already
in module's remove() so use devm API instead.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-07-30
In the Linux kernel, the following vulnerability has been resolved:
ice: Don't process extts if PTP is disabled
The ice_ptp_extts_event() function can race with ice_ptp_release() and
result in a NULL pointer dereference which leads to a kernel panic.
Panic occurs because the ice_ptp_extts_event() function calls
ptp_clock_event() with a NULL pointer. The ice driver has already
released the PTP clock by the time the interrupt for the next external
timestamp event occurs.
To fix this, modify the ice_ptp_extts_event() function to check the
PTP state and bail early if PTP is not ready.
CVSS Score
4.7
EPSS Score
0.0
Published
2024-07-30
In the Linux kernel, the following vulnerability has been resolved:
media: mediatek: vcodec: Only free buffer VA that is not NULL
In the MediaTek vcodec driver, while mtk_vcodec_mem_free() is mostly
called only when the buffer to free exists, there are some instances
that didn't do the check and triggered warnings in practice.
We believe those checks were forgotten unintentionally. Add the checks
back to fix the warnings.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-07-30
In the Linux kernel, the following vulnerability has been resolved:
nfsd: initialise nfsd_info.mutex early.
nfsd_info.mutex can be dereferenced by svc_pool_stats_start()
immediately after the new netns is created. Currently this can
trigger an oops.
Move the initialisation earlier before it can possibly be dereferenced.
CVSS Score
5.5
EPSS Score
0.0
Published
2024-07-29
In the Linux kernel, the following vulnerability has been resolved:
gfs2: Fix NULL pointer dereference in gfs2_log_flush
In gfs2_jindex_free(), set sdp->sd_jdesc to NULL under the log flush
lock to provide exclusion against gfs2_log_flush().
In gfs2_log_flush(), check if sdp->sd_jdesc is non-NULL before
dereferencing it. Otherwise, we could run into a NULL pointer
dereference when outstanding glock work races with an unmount
(glock_work_func -> run_queue -> do_xmote -> inode_go_sync ->
gfs2_log_flush).
CVSS Score
5.5
EPSS Score
0.001
Published
2024-07-29
In the Linux kernel, the following vulnerability has been resolved:
drm/xe/xe_devcoredump: Check NULL before assignments
Assign 'xe_devcoredump_snapshot *' and 'xe_device *' only if
'coredump' is not NULL.
v2
- Fix commit messages.
v3
- Define variables before code.(Ashutosh/Jose)
v4
- Drop return check for coredump_to_xe. (Jose/Rodrigo)
v5
- Modify misleading commit message. (Matt)
CVSS Score
5.5
EPSS Score
0.0
Published
2024-07-29