Riskcovery

CVE-2025-40276

drm/panthor: Flush shmem writes before mapping buffers CPU-uncached

State
Published
Severity
7.3 High
Published
Dec 6, 2025
Updated
Aug 5, 2026
Reserved
Apr 16, 2025

Read the record on cve.org

Description

In the Linux kernel, the following vulnerability has been resolved:

drm/panthor: Flush shmem writes before mapping buffers CPU-uncached

The shmem layer zeroes out the new pages using cached mappings, and if we don't CPU-flush we might leave dirty cachelines behind, leading to potential data leaks and/or asynchronous buffer corruption when dirty cachelines are evicted.

Scores

CVSSScoreVectorSource
3.17.3 HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:HLinux

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 8a1cc07578bf42d85f008316873d710ff684dd29 to before 8355eea2a2e9c323021dfdcb95d7767d382123c4Affected
  • 8a1cc07578bf42d85f008316873d710ff684dd29 to before 7a12f9c96d06b145562f76ffb20369b4692f0911Affected
  • 8a1cc07578bf42d85f008316873d710ff684dd29 to before 576c930e5e7dcb937648490611a83f1bf0171048Affected
LinuxLinux
  • 6.10Affected
  • before 6.10Not affected
  • 6.12.64 through 6.12.*Not affected
  • 6.17.9 through 6.17.*Not affected
  • 6.18 and laterNot affected

References

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