CVE-2025-71301

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> drm/tests: shmem: Hold reservation lock around vmap/vunmap<br /> <br /> Acquire and release the GEM object&amp;#39;s reservation lock around vmap and<br /> vunmap operations. The tests use vmap_locked, which led to errors such<br /> as show below.<br /> <br /> [ 122.292030] WARNING: CPU: 3 PID: 1413 at drivers/gpu/drm/drm_gem_shmem_helper.c:390 drm_gem_shmem_vmap_locked+0x3a3/0x6f0<br /> <br /> [ 122.468066] WARNING: CPU: 3 PID: 1413 at drivers/gpu/drm/drm_gem_shmem_helper.c:293 drm_gem_shmem_pin_locked+0x1fe/0x350<br /> <br /> [ 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<br /> <br /> [ 122.662248] WARNING: CPU: 2 PID: 1413 at drivers/gpu/drm/drm_gem_shmem_helper.c:452 drm_gem_shmem_vunmap_locked+0x101/0x330<br /> <br /> Only export the new vmap/vunmap helpers for Kunit tests. These are<br /> not interfaces for regular drivers.