CVEvulnerability

CVE-2024-44954

4.7 MEDIUM Published 2024-09-04 Modified 2026-08-04 Official page ↗
Status
Modified
Published
2024-09-04
Last modified
2026-08-04
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS 3.1 ([email protected])
4.7 MEDIUM — CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Weaknesses
CWE-362

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.

Affected configurations

• linux linux kernel (< 4.19.320) • linux linux kernel (> 4.20 < 5.4.282) • linux linux kernel (>= 5.5 < 5.10.224) • linux linux kernel (> 5.11 < 5.15.165) • linux linux kernel (>= 5.16 < 6.1.105) • linux linux kernel (>= 6.2 < 6.6.46) • linux linux kernel (>= 6.7 < 6.10.5) • linux linux kernel 6.11

Related

Weakness · CWE (1)

  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization weakness

References