Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: drm/xe/oa: Fix potential UAF in xe_oa_add_config_ioctl() In xe_oa_add_config_ioctl(), we accessed oa_config->id after dropping metrics_lock. Since this lock protects the lifetime of oa_config, an attacker could guess the id and call xe_oa_remove_config_ioctl() with perfect timing, freeing oa_config before we dereference it, leading to a potential use-after-free. Fix this by caching the id in a local variable while holding the lock. v2: (Matt A) - Dropped mutex_unlock(&oa->metrics_lock) ordering change from xe_oa_remove_config_ioctl() (cherry picked from commit 28aeaed130e8e587fd1b73b6d66ca41ccc5a1a31)
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected cdf02fe1a94a768cbcd20f5c4e1a1d805f4a06c0 before c6d30b65b7a44dac52ad49513268adbf19eab4a2; affected cdf02fe1a94a768cbcd20f5c4e1a1d805f4a06c0 before 7cdb9a9da935c687563cc682155461fef5f9b48d; affected cdf02fe1a94a768cbcd20f5c4e1a1d805f4a06c0 before dcb171931954c51a1a7250d558f02b8f36570783 |
| Linux / Linux | affected 6.11; unaffected 0 before 6.11; unaffected 6.12.64 through 6.12.*; unaffected 6.18.4 through 6.18.*; unaffected 6.19 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/c6d30b65b7a44dac52ad49513268adbf19eab4a2
- https://git.kernel.org/stable/c/7cdb9a9da935c687563cc682155461fef5f9b48d
- https://git.kernel.org/stable/c/dcb171931954c51a1a7250d558f02b8f36570783
ADP enrichment
No English description supplied.
No references supplied.