CVE-2025-71099
drm/xe/oa: Fix potential UAF in xe_oa_add_config_ioctl()
Published 9 mo ago · modified 19 d ago · JSON
Summary
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)
CISA SSVC assessment
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 22 d ago
Exploit prediction (EPSS)
0.14% probability of exploitation in the next 30 days, higher than 3% of all scored CVEs.
CVSS scores
| Assigned by | Version | Score | Vector |
|---|---|---|---|
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| CNA | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
| NVD | 3.1 | 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- Linux Linux
Classification
- Weakness
- CWE-416 Use After Free
- Technology feeds
- Linux kernel (RSS, critical only)
References
- git.kernel.org /stable/c/c6d30b65b7a44dac52ad49513268adbf19eab4a2
- git.kernel.org /stable/c/7cdb9a9da935c687563cc682155461fef5f9b48d
- git.kernel.org /stable/c/dcb171931954c51a1a7250d558f02b8f36570783
Sources
- CVE List: CVE-2025-71099
- NVD: CVE-2025-71099
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