PT-2024-31322 · Linux+6 · Linux Kernel+6
Published
2024-08-05
·
Updated
2025-09-29
·
CVE-2024-44954
CVSS v3.1
4.7
Medium
| Vector | AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H |
Name of the Vulnerable Software and Affected Versions
Linux kernel versions prior to 6.6.50
Description
The issue is related to concurrent accesses to line6 midibuf from both the URB completion callback and the rawmidi API access, which could cause a KMSAN warning triggered by syzkaller. This patch protects the midibuf call of the former code path with a spinlock for avoiding the possible races.
Recommendations
Update to Linux kernel version 6.6.50 or later to resolve the issue.
As a temporary workaround, consider applying a patch that protects the midibuf call with a spinlock to avoid possible races.
Exploit
Fix
Race Condition
Improper Locking
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Related Identifiers
Affected Products
Alt Linux
Astra Linux
Linuxmint
Linux Kernel
Red Os
Suse
Ubuntu