CVE-2025-71296
Description
In the Linux kernel, the following vulnerability has been resolved: drm/tests: shmem: Hold reservation lock around purge Acquire and release the GEM object's reservation lock around calls to the object's purge operation. The tests use drm_gem_shmem_purge_locked(), which led to errors such as show below. [ 58.709128] WARNING: CPU: 1 PID: 1354 at drivers/gpu/drm/drm_gem_shmem_helper.c:515 drm_gem_shmem_purge_locked+0x51c/0x740 Only export the new helper drm_gem_shmem_purge() for Kunit tests. This is not an interface for regular drivers.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2025-71296
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2025-71296.html
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/cdf8bbbd9017adcfb91ad9a902198d4b507719a9
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/8baeee2c1c0cdb3a8eac3b8f38156cce6ee1a69f
Vendor advisory: 416baaa9-dc9f-4396-8d5f-8c081fb06d67 — https://git.kernel.org/stable/c/3f41307d589c2f25d556d47b165df808124cd0c4
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 0 |
| debian | bullseye | fixed | 0 |
| debian | forky | fixed | 6.19.6-1 |
| debian | sid | fixed | 6.19.6-1 |
| debian | trixie | fixed | 0 |
| linux-kernel | affected | 6.18.16 |
References
- https://git.kernel.org/stable/c/3f41307d589c2f25d556d47b165df808124cd0c4
- https://git.kernel.org/stable/c/8baeee2c1c0cdb3a8eac3b8f38156cce6ee1a69f
- https://git.kernel.org/stable/c/cdf8bbbd9017adcfb91ad9a902198d4b507719a9
- https://www.suse.com/security/cve/CVE-2025-71296.html
- https://security-tracker.debian.org/tracker/CVE-2025-71296
Verify integrity in audit chain (admin only). AS-IS.