Riskcovery

CVE-2026-31547

drm/xe: Fix missing runtime PM reference in ccs_mode_store

State
Published
Severity
Not scored
Published
Apr 24, 2026
Updated
May 11, 2026
Reserved
Mar 9, 2026

Read the record on cve.org

Description

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)

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 480b358e7d8ef69fd8f1b0cad6e07c7d70a36ee4 to before c409ecce9adcf815e86bc2f68834982e5a9c4e76Affected
  • 480b358e7d8ef69fd8f1b0cad6e07c7d70a36ee4 to before 65d046b2d8e0d6d855379a981869005fd6b6a41bAffected
LinuxLinux
  • 6.19Affected
  • before 6.19Not affected
  • 6.19.10 through 6.19.*Not affected
  • 7.0 and laterNot affected

References

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