Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: watchdog: Fix possible use-after-free by calling del_timer_sync() This driver'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 7c25f8c9f67708e6464d2221bc311cbd99e950dc before 58606882ad8ec6c39e0f40344b922921ef94ab4d; affected 7c25f8c9f67708e6464d2221bc311cbd99e950dc before ca96b8ea5e74956071154bdb456778cc3027e79f; affected 7c25f8c9f67708e6464d2221bc311cbd99e950dc before 8bec568d7518b1504a602ed5376bb322e4dbb270; affected 7c25f8c9f67708e6464d2221bc311cbd99e950dc before ecd620e0fb1ff7f78fdb593379b2e6938c99707a; affected 7c25f8c9f67708e6464d2221bc311cbd99e950dc before db222f1477ad5692cd454709b714949807e5d111; affected 7c25f8c9f67708e6464d2221bc311cbd99e950dc before 66ba9cf929b1c4fabf545bd4c18f6f64e23e46e4; affected 7c25f8c9f67708e6464d2221bc311cbd99e950dc before 4c05dac488a660fe2925c047ecb119e7afaaeb1e; affected 7c25f8c9f67708e6464d2221bc311cbd99e950dc before 1a053c4d716898a53c2e31c574a70ea0c37044a3; affected 7c25f8c9f67708e6464d2221bc311cbd99e950dc before d0212f095ab56672f6f36aabc605bda205e1e0bf |
| Linux / Linux | affected 4.3; unaffected 0 before 4.3; 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/58606882ad8ec6c39e0f40344b922921ef94ab4d
- https://git.kernel.org/stable/c/ca96b8ea5e74956071154bdb456778cc3027e79f
- https://git.kernel.org/stable/c/8bec568d7518b1504a602ed5376bb322e4dbb270
- https://git.kernel.org/stable/c/ecd620e0fb1ff7f78fdb593379b2e6938c99707a
- https://git.kernel.org/stable/c/db222f1477ad5692cd454709b714949807e5d111
- https://git.kernel.org/stable/c/66ba9cf929b1c4fabf545bd4c18f6f64e23e46e4
- https://git.kernel.org/stable/c/4c05dac488a660fe2925c047ecb119e7afaaeb1e
- https://git.kernel.org/stable/c/1a053c4d716898a53c2e31c574a70ea0c37044a3
- https://git.kernel.org/stable/c/d0212f095ab56672f6f36aabc605bda205e1e0bf
ADP enrichment
No English description supplied.
- https://git.kernel.org/stable/c/58606882ad8ec6c39e0f40344b922921ef94ab4d
- https://git.kernel.org/stable/c/ca96b8ea5e74956071154bdb456778cc3027e79f
- https://git.kernel.org/stable/c/8bec568d7518b1504a602ed5376bb322e4dbb270
- https://git.kernel.org/stable/c/ecd620e0fb1ff7f78fdb593379b2e6938c99707a
- https://git.kernel.org/stable/c/db222f1477ad5692cd454709b714949807e5d111
- https://git.kernel.org/stable/c/66ba9cf929b1c4fabf545bd4c18f6f64e23e46e4
- https://git.kernel.org/stable/c/4c05dac488a660fe2925c047ecb119e7afaaeb1e
- https://git.kernel.org/stable/c/1a053c4d716898a53c2e31c574a70ea0c37044a3
- https://git.kernel.org/stable/c/d0212f095ab56672f6f36aabc605bda205e1e0bf
No English description supplied.
No references supplied.