CVE-2024-44954

Severity CVSS v4.0:

Pending analysis

Type:

CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

Publication date:

04/09/2024

Last modified:

03/11/2025

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.

Impact

Vector 3.x

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H CVSS v3.1 Severity and Metrics:

Base Score: 4.70 MEDIUM
Vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Attack Vector (AV): Local
Attack Complexity (AC): High
Privileges Required (PR): Low
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): None
Integrity (I): None
Availability (A): High

Base Score 3.x

4.70

Severity 3.x

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:o:linux:linux_kernel::::::::		4.19.320 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	4.20 (excluding)	5.4.282 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.5 (including)	5.10.224 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.11 (excluding)	5.15.165 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	5.16 (including)	6.1.105 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.2 (including)	6.6.46 (excluding)
cpe:2.3:o:linux:linux_kernel::::::::	6.7 (including)	6.10.5 (excluding)
cpe:2.3:o:linux:linux_kernel:6.11:rc1::::::
cpe:2.3:o:linux:linux_kernel:6.11:rc2::::::

To consult the complete list of CPE names with products and versions, see this page

CVE-2024-44954

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools