CVE-2026-31547
- Source
- https://cve.org/CVERecord?id=CVE-2026-31547
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-31547.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-31547
- Downstream
- Related
- Published
- 2026-04-24T14:33:15Z
- Modified
- 2026-08-12T03:51:08Z
- Summary
- drm/xe: Fix missing runtime PM reference in ccs_mode_store
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
drm/xe: Fix missing runtime PM reference in ccs_mode_store
ccs_mode_store() calls xe_gt_reset() which internally invokes xe_pm_runtime_get_noresume(). That function requires the caller to already hold an outer runtime PM reference and warns if none is held:
[46.891177] xe 0000:03:00.0: [drm] Missing outer runtime PM protection [46.891178] WARNING: drivers/gpu/drm/xe/xe_pm.c:885 at xe_pm_runtime_get_noresume+0x8b/0xc0
Fix this by protecting xe_gt_reset() with the scope-based guard(xe_pm_runtime)(xe), which is the preferred form when the reference lifetime matches a single scope.
v2:
- Use scope-based guard(xe_pm_runtime)(xe) (Shuicheng)
- Update commit message accordingly
(cherry picked from commit 7937ea733f79b3f25e802a0c8360bf7423856f36)
- Database specific
{ "cna_assigner": "Linux", "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31547.json" }- References
-
- https://git.kernel.org/stable/c/65d046b2d8e0d6d855379a981869005fd6b6a41b
- https://git.kernel.org/stable/c/c409ecce9adcf815e86bc2f68834982e5a9c4e76
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/31xxx/CVE-2026-31547.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-31547
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git