Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: watchdog: sc520_wdt: Fix possible use-after-free in wdt_turnoff() This module's remove path calls del_timer(). However, that function does not wait until the timer handler finishes. This means that the timer handler may still be running after the driver's remove function has finished, which would result in a use-after-free. Fix by calling del_timer_sync(), which makes sure the timer handler has finished, and unable to re-schedule itself.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 0015581a79bbf8e521f85dddb7d3e4a66b9f51d4; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before b4565a8a2d6bffb05bfbec11399d261ec16fe373; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 2aef07017fae21c3d8acea9656b10e3b9c0f1e04; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 522e75ed63f67e815d4ec0deace67df22d9ce78e; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 7c56c5508dc20a6b133bc669fc34327a6711c24c; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before a173e3b62cf6dd3c4a0a10c8a82eedfcae81a566; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before b3c41ea5bc34d8c7b19e230d80e0e555c6f5057d; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before f0feab82f6a0323f54d85e8b512a2be64f83648a; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 before 90b7c141132244e8e49a34a4c1e445cce33e07f4 |
| Linux / Linux | affected 2.6.12; unaffected 0 before 2.6.12; unaffected 4.4.276 through 4.4.*; unaffected 4.9.276 through 4.9.*; unaffected 4.14.240 through 4.14.*; unaffected 4.19.198 through 4.19.*; unaffected 5.4.134 through 5.4.*; unaffected 5.10.52 through 5.10.*; unaffected 5.12.19 through 5.12.*; unaffected 5.13.4 through 5.13.*; unaffected 5.14 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/0015581a79bbf8e521f85dddb7d3e4a66b9f51d4
- https://git.kernel.org/stable/c/b4565a8a2d6bffb05bfbec11399d261ec16fe373
- https://git.kernel.org/stable/c/2aef07017fae21c3d8acea9656b10e3b9c0f1e04
- https://git.kernel.org/stable/c/522e75ed63f67e815d4ec0deace67df22d9ce78e
- https://git.kernel.org/stable/c/7c56c5508dc20a6b133bc669fc34327a6711c24c
- https://git.kernel.org/stable/c/a173e3b62cf6dd3c4a0a10c8a82eedfcae81a566
- https://git.kernel.org/stable/c/b3c41ea5bc34d8c7b19e230d80e0e555c6f5057d
- https://git.kernel.org/stable/c/f0feab82f6a0323f54d85e8b512a2be64f83648a
- https://git.kernel.org/stable/c/90b7c141132244e8e49a34a4c1e445cce33e07f4
ADP enrichment
No English description supplied.
No references supplied.
No English description supplied.
- https://git.kernel.org/stable/c/0015581a79bbf8e521f85dddb7d3e4a66b9f51d4
- https://git.kernel.org/stable/c/b4565a8a2d6bffb05bfbec11399d261ec16fe373
- https://git.kernel.org/stable/c/2aef07017fae21c3d8acea9656b10e3b9c0f1e04
- https://git.kernel.org/stable/c/522e75ed63f67e815d4ec0deace67df22d9ce78e
- https://git.kernel.org/stable/c/7c56c5508dc20a6b133bc669fc34327a6711c24c
- https://git.kernel.org/stable/c/a173e3b62cf6dd3c4a0a10c8a82eedfcae81a566
- https://git.kernel.org/stable/c/b3c41ea5bc34d8c7b19e230d80e0e555c6f5057d
- https://git.kernel.org/stable/c/f0feab82f6a0323f54d85e8b512a2be64f83648a
- https://git.kernel.org/stable/c/90b7c141132244e8e49a34a4c1e445cce33e07f4