Riskcovery

CVE-2025-71301

drm/tests: shmem: Hold reservation lock around vmap/vunmap

State
Published
Severity
Not scored
Published
May 8, 2026
Updated
May 11, 2026
Reserved
May 8, 2026

Read the record on cve.org

Description

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

drm/tests: shmem: Hold reservation lock around vmap/vunmap

Acquire and release the GEM object's reservation lock around vmap and vunmap operations. The tests use vmap_locked, which led to errors such as show below.

[ 122.292030] WARNING: CPU: 3 PID: 1413 at drivers/gpu/drm/drm_gem_shmem_helper.c:390 drm_gem_shmem_vmap_locked+0x3a3/0x6f0

[ 122.468066] WARNING: CPU: 3 PID: 1413 at drivers/gpu/drm/drm_gem_shmem_helper.c:293 drm_gem_shmem_pin_locked+0x1fe/0x350

[ 122.563504] WARNING: CPU: 3 PID: 1413 at drivers/gpu/drm/drm_gem_shmem_helper.c:234 drm_gem_shmem_get_pages_locked+0x23c/0x370

[ 122.662248] WARNING: CPU: 2 PID: 1413 at drivers/gpu/drm/drm_gem_shmem_helper.c:452 drm_gem_shmem_vunmap_locked+0x101/0x330

Only export the new vmap/vunmap helpers for Kunit tests. These are not interfaces for regular drivers.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 954907f7147dc43e0d1cd4d430c21d143d5fdf55 to before 6b953d92f2f29e74b125617c6f00300fa1bed97eAffected
  • 954907f7147dc43e0d1cd4d430c21d143d5fdf55 to before e7b7022f11d3cf281c726117478696b83681bf11Affected
  • 954907f7147dc43e0d1cd4d430c21d143d5fdf55 to before cda83b099f117f2a28a77bf467af934cb39e49cfAffected
LinuxLinux
  • 6.16Affected
  • before 6.16Not affected
  • 6.18.16 through 6.18.*Not affected
  • 6.19.6 through 6.19.*Not affected
  • 7.0 and laterNot affected

References

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