CVE-2024-44954
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.
Does this matter?
Lower severity and a low EPSS score (0.18%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 4.7 MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.18% probability · 7th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-362
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
EPSS 0.2% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://git.kernel.org/stable/c/15b7a03205b31bc5623378c190d22b7ff60026f1Patch
- https://git.kernel.org/stable/c/40f3d5cb0e0cbf7fa697913a27d5d361373bdcf5Patch
- https://git.kernel.org/stable/c/51d87f11dd199bbc6a85982b088ff27bde53b48aPatch
- https://git.kernel.org/stable/c/535df7f896a568a8a1564114eaea49d002cb1747Patch
- https://git.kernel.org/stable/c/643293b68fbb6c03f5e907736498da17d43f0d81Patch
- https://git.kernel.org/stable/c/a54da4b787dcac60b598da69c9c0072812b8282dPatch
- https://git.kernel.org/stable/c/c80f454a805443c274394b1db0d1ebf477abd94ePatch
- https://git.kernel.org/stable/c/e7e7d2b180d8f297cea6db43ea72402fd33e1a29Patch
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.