CVE-2026-43370

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A use-after-free race condition exists in the drm/amdgpu component during VM acquire. This occurs when parent and child processes sharing a drm file both attempt to acquire the same VM after a fork() operation, caused by a non-atomic assignment to vm->process info.

Recommendations Replace the non-atomic vm->process info assignment with cmpxchg() to ensure atomic operations and prevent the race condition.