PT-2025-20518 · Linux+3 · Linux Kernel+3
Published
2025-04-14
·
Updated
2026-02-02
·
CVE-2025-37868
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 deadlock issue has been identified in the Linux kernel, specifically in the drm/xe/userptr component. The issue occurs when the migrate pages batch() function holds folio lock(s) and interacts with mappings tied to userptr, which can lead to a notifier callback and grabbing the notifier lock. With perfect timing, it is possible for pages to be sniped by migrate pages batch() while holding the notifier lock, resulting in a deadlock. The issue has been resolved by removing the mark page accessed/dirty call, which was not necessary in the first place.
Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Improper Locking
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Related Identifiers
Affected Products
Linux Kernel
Red Os
Suse
Ubuntu