Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ACPI: video: Fix use-after-free in acpi_video_switch_brightness() The switch_brightness_work delayed work accesses device->brightness and device->backlight, freed by acpi_video_dev_unregister_backlight() during device removal. If the work executes after acpi_video_bus_unregister_backlight() frees these resources, it causes a use-after-free when acpi_video_switch_brightness() dereferences device->brightness or device->backlight. Fix this by calling cancel_delayed_work_sync() for each device's switch_brightness_work in acpi_video_bus_remove_notify_handler() after removing the notify handler that queues the work. This ensures the work completes before the memory is freed. [ rjw: Changelog edit ]
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 8ab58e8e7e097bae5fe39cbc67eb93a91f7134b7 before 3f803ccf5a0c043e7c8b83f6665b082401fc8bee; affected 8ab58e8e7e097bae5fe39cbc67eb93a91f7134b7 before ba1704316492a0496c69334338ea1fdbf4c2fd34; affected 8ab58e8e7e097bae5fe39cbc67eb93a91f7134b7 before bc78a4f51d548c1ccc3d1967c2b394bf687c86e9; affected 8ab58e8e7e097bae5fe39cbc67eb93a91f7134b7 before a63a5b6fb508d78fe57ae3b159d9ef3af7ba80e9; affected 8ab58e8e7e097bae5fe39cbc67eb93a91f7134b7 before 4e85246ec0d019dfba86ba54d841ef6694f97149; affected 8ab58e8e7e097bae5fe39cbc67eb93a91f7134b7 before de5fc93275a4a459fe2f7cb746984f2ab3e8292a; affected 8ab58e8e7e097bae5fe39cbc67eb93a91f7134b7 before 293125536ef5521328815fa7c76d5f9eb1635659; affected 8ab58e8e7e097bae5fe39cbc67eb93a91f7134b7 before 8f067aa59430266386b83c18b983ca583faa6a11 |
| Linux / Linux | affected 3.17; unaffected 0 before 3.17; unaffected 5.4.302 through 5.4.*; unaffected 5.10.247 through 5.10.*; unaffected 5.15.197 through 5.15.*; unaffected 6.1.159 through 6.1.*; unaffected 6.6.117 through 6.6.*; unaffected 6.12.58 through 6.12.*; unaffected 6.17.8 through 6.17.*; unaffected 6.18 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/3f803ccf5a0c043e7c8b83f6665b082401fc8bee
- https://git.kernel.org/stable/c/ba1704316492a0496c69334338ea1fdbf4c2fd34
- https://git.kernel.org/stable/c/bc78a4f51d548c1ccc3d1967c2b394bf687c86e9
- https://git.kernel.org/stable/c/a63a5b6fb508d78fe57ae3b159d9ef3af7ba80e9
- https://git.kernel.org/stable/c/4e85246ec0d019dfba86ba54d841ef6694f97149
- https://git.kernel.org/stable/c/de5fc93275a4a459fe2f7cb746984f2ab3e8292a
- https://git.kernel.org/stable/c/293125536ef5521328815fa7c76d5f9eb1635659
- https://git.kernel.org/stable/c/8f067aa59430266386b83c18b983ca583faa6a11
ADP enrichment
No English description supplied.
No references supplied.