SB20250619174 - Use-after-free in Linux kernel drm ttm driver
Published: June 19, 2025 Updated: June 21, 2025
Security Bulletin ID
SB20250619174
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Code execution
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) Use-after-free (CVE-ID: CVE-2022-50068)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a use-after-free error within the ttm_bo_validate() function in drivers/gpu/drm/ttm/ttm_bo.c. A local user can escalate privileges on the system.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/76672cd326c146ded2c2712ff257b8908dcf23d8
- https://git.kernel.org/stable/c/9bd970d4097287778a4449452e70b35d0bfaa3aa
- https://git.kernel.org/stable/c/cf4b7387c0a842d64bdd7c353e6d3298174a7740
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.15.63
- https://mirrors.edge.kernel.org/pub/linux/kernel/v5.x/ChangeLog-5.19.4
- https://mirrors.edge.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.0