CVE-2025-71301

Published: Mag 08, 2026 Last Modified: Mag 08, 2026
ExploitDB:
Other exploit source:
Google Dorks:

Description

AI Translation Available

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.

https://git.kernel.org/stable/c/6b953d92f2f29e74b125617c6f0…
https://git.kernel.org/stable/c/6b953d92f2f29e74b125617c6f00300fa1bed97e
https://git.kernel.org/stable/c/cda83b099f117f2a28a77bf467a…
https://git.kernel.org/stable/c/cda83b099f117f2a28a77bf467af934cb39e49cf
https://git.kernel.org/stable/c/e7b7022f11d3cf281c726117478…
https://git.kernel.org/stable/c/e7b7022f11d3cf281c726117478696b83681bf11