🛡️ CVE-2026-31547 — kernel

🟡 CVSS 5.5 — Medium ✅ No Known Exploit NVD
5.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

drm/xe: Fix missing runtime PM reference in ccs_mode_store

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)

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality none, integrity none, availability high.

Affected software

CVE-2026-31547 is recorded against 2 packages.

  • kernel (from 6.19.0 up to 6.19.10)
  • linux-kernel

Timeline and source

Published on 24 April 2026 and last revised on 15 July 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

git.kernel.org (Web)
git.kernel.org (Web)
github.com (Advisory)
nvd.nist.gov (Advisory)
git.kernel.org (Package)

CVE-2026-31547 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Medium
CVSS Score 5.5
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2026-04-24
Updated 2026-08-12
Modified 2026-07-15

Affected Packages

Software From version Fixed in
kernel 6.19.0 6.19.10
linux-kernel — —

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