Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 954907f7147dc43e0d1cd4d430c21d143d5fdf55 before 6b953d92f2f29e74b125617c6f00300fa1bed97e; affected 954907f7147dc43e0d1cd4d430c21d143d5fdf55 before e7b7022f11d3cf281c726117478696b83681bf11; affected 954907f7147dc43e0d1cd4d430c21d143d5fdf55 before cda83b099f117f2a28a77bf467af934cb39e49cf |
| Linux / Linux | affected 6.16; unaffected 0 before 6.16; unaffected 6.18.16 through 6.18.*; unaffected 6.19.6 through 6.19.*; unaffected 7.0 through * |
CWE
No CWE identifiers supplied.