PT-2025-49785 · Linux+3 · Linux Kernel+3
Published
2025-01-01
·
Updated
2026-04-20
·
CVE-2025-40332
CVSS v2.0
4.3
Medium
| Vector | AV:A/AC:H/Au:S/C:N/I:N/A:C |
Name of the Vulnerable Software and Affected Versions
Linux kernel (affected versions not specified)
Description
A flaw exists in the Linux kernel’s drm/amdkfd subsystem where a write lock acquired during retry fault draining is not released. This occurs because
svm range restore pages calls mmap read unlock and then returns, preventing the release of the write lock. This can lead to a deadlock and system hangs when attempting to acquire a read or write lock later. The issue is addressed by downgrading the mmap write lock to a read lock during retry fault draining.Recommendations
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
Exploit
Improper Resource Release
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Weakness Enumeration
Related Identifiers
Affected Products
Debian
Linuxmint
Linux Kernel
Ubuntu