vulnerability
Red Hat: CVE-2024-44954: kernel: ALSA: line6: Fix racy access to midibuf
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 4 | (AV:L/AC:M/Au:S/C:N/I:N/A:C) | Sep 4, 2024 | Jul 9, 2025 | Jul 10, 2025 |
Severity
4
CVSS
(AV:L/AC:M/Au:S/C:N/I:N/A:C)
Published
Sep 4, 2024
Added
Jul 9, 2025
Modified
Jul 10, 2025
Description
In the Linux kernel, the following vulnerability has been resolved:
ALSA: line6: Fix racy access to midibuf
There can be concurrent accesses to line6 midibuf from both the URB
completion callback and the rawmidi API access. This could be a cause
of KMSAN warning triggered by syzkaller below (so put as reported-by
here).
This patch protects the midibuf call of the former code path with a
spinlock for avoiding the possible races.
Solution
no-fix-redhat-rpm-package
References
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