SB2026011446 - NULL pointer dereference in Linux kernel drm ttm driver
Published: January 14, 2026
Security Bulletin ID
SB2026011446
Severity
Low
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Local access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 security vulnerability.
1) NULL pointer dereference (CVE-ID: CVE-2025-71083)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to NULL pointer dereference within the ttm_bo_vm_access() function in drivers/gpu/drm/ttm/ttm_bo_vm.c. A local user can perform a denial of service (DoS) attack.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/3d004f7341d4898889801ebb2ef61ffca610dd6f
- https://git.kernel.org/stable/c/491adc6a0f9903c32b05f284df1148de39e8e644
- https://git.kernel.org/stable/c/4b9944493c6d92d7b29cfd83aaf3deb842b8da79
- https://git.kernel.org/stable/c/5a81095d3e1b521ac7cfe3b14d5f149bace3d6e0
- https://git.kernel.org/stable/c/b94182b3d7228aec18d069cba56d5982e9bfe1b1