PT-2025-14320 · Linux+5 · Linux Kernel+5
Published
2025-03-04
·
Updated
2026-01-20
·
CVE-2025-21939
CVSS v3.1
5.5
Medium
| Vector | AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A vulnerability in the Linux kernel has been resolved, related to the drm/xe/hmm component. The issue involves dereferencing struct page pointers without holding the notifier lock, which can lead to problems as the pages may not be valid. The fix involves manually building the sg-table to avoid marking pages as dirty and accessed when they are not owned, and to prevent dereferencing struct pages that are not owned. The estimated number of potentially affected devices worldwide is not available.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
NULL Pointer Dereference
Improper Locking
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Related Identifiers
Affected Products
Astra Linux
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu