CVE-2025-71083

drm/ttm: Avoid NULL pointer deref for evicted BOs

State: Published
Severity: Not scored
Published: Jan 13, 2026
Updated: Oct 19, 2026
Reserved: Jan 13, 2026

Description

In the Linux kernel, the following vulnerability has been resolved:

drm/ttm: Avoid NULL pointer deref for evicted BOs

It is possible for a BO to exist that is not currently associated with a resource, e.g. because it has been evicted.

When devcoredump tries to read the contents of all BOs for dumping, we need to expect this as well -- in this case, ENODATA is recorded instead of the buffer contents.

Scores

The record has no CVSS score.

Weaknesses

CWE-476 NULL Pointer Dereference

Affected Products

Product	Versions
LinuxLinux	09ac4fcb3f255e9225967c75f5893325c116cdbe to before 47a85604a761005d255ae38115ee630cc6931756Affected 09ac4fcb3f255e9225967c75f5893325c116cdbe to before 4b9944493c6d92d7b29cfd83aaf3deb842b8da79Affected 09ac4fcb3f255e9225967c75f5893325c116cdbe to before 3d004f7341d4898889801ebb2ef61ffca610dd6fAffected 09ac4fcb3f255e9225967c75f5893325c116cdbe to before 5a81095d3e1b521ac7cfe3b14d5f149bace3d6e0Affected 09ac4fcb3f255e9225967c75f5893325c116cdbe to before b94182b3d7228aec18d069cba56d5982e9bfe1b1Affected 09ac4fcb3f255e9225967c75f5893325c116cdbe to before 491adc6a0f9903c32b05f284df1148de39e8e644Affected
LinuxLinux	4.14Affected before 4.14Not affected 5.15.198 through 5.15.Not affected 6.1.160 through 6.1.Not affected 6.6.120 through 6.6.Not affected 6.12.64 through 6.12.Not affected 6.18.4 through 6.18.*Not affected 6.19 and laterNot affected

Product

Versions

LinuxLinux

09ac4fcb3f255e9225967c75f5893325c116cdbe to before 47a85604a761005d255ae38115ee630cc6931756Affected
09ac4fcb3f255e9225967c75f5893325c116cdbe to before 4b9944493c6d92d7b29cfd83aaf3deb842b8da79Affected
09ac4fcb3f255e9225967c75f5893325c116cdbe to before 3d004f7341d4898889801ebb2ef61ffca610dd6fAffected
09ac4fcb3f255e9225967c75f5893325c116cdbe to before 5a81095d3e1b521ac7cfe3b14d5f149bace3d6e0Affected
09ac4fcb3f255e9225967c75f5893325c116cdbe to before b94182b3d7228aec18d069cba56d5982e9bfe1b1Affected
09ac4fcb3f255e9225967c75f5893325c116cdbe to before 491adc6a0f9903c32b05f284df1148de39e8e644Affected

LinuxLinux

4.14Affected
before 4.14Not affected
5.15.198 through 5.15.*Not affected
6.1.160 through 6.1.*Not affected
6.6.120 through 6.6.*Not affected
6.12.64 through 6.12.*Not affected
6.18.4 through 6.18.*Not affected
6.19 and laterNot affected

References

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