High 7.3Published Dec 6, 2025

CVE-2025-40276drm/panthor: Flush shmem writes before mapping buffers CPU-uncached

Updated under an hour ago (Oct 27, 2026, 10:23 PM ET)

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No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

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.

CVSS: 7.3 HIGH (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Deferred
Record last updated: Aug 5, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from 8a1cc07578bf42d85f008316873d710ff684dd29 before 8355eea2a2e9c323021dfdcb95d7767d382123c4; 8a1cc07578bf42d85f008316873d710ff684dd29 builds before 7a12f9c96d06b145562f76ffb20369b4692f0911; from 8a1cc07578bf42d85f008316873d710ff684dd29 before 576c930e5e7dcb937648490611a83f1bf0171048	CNA record

References

References

https://git.kernel.org/stable/c/8355eea2a2e9c323021dfdcb95d7767d382123c4
https://git.kernel.org/stable/c/7a12f9c96d06b145562f76ffb20369b4692f0911
https://git.kernel.org/stable/c/576c930e5e7dcb937648490611a83f1bf0171048

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.