CVE-2024-46713

perf/aux: Fix AUX buffer serialization

State: Published
Severity: 7.8 High
Published: Sep 13, 2024
Updated: Aug 5, 2026
Reserved: Sep 11, 2024

Description

In the Linux kernel, the following vulnerability has been resolved:

perf/aux: Fix AUX buffer serialization

Ole reported that event->mmap_mutex is strictly insufficient to serialize the AUX buffer, add a per RB mutex to fully serialize it.

Note that in the lock order comment the perf_event::mmap_mutex order was already wrong, that is, it nesting under mmap_lock is not new with this patch.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	Linux

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	45bfb2e50471abbbfd83d40d28c986078b0d24ff to before 7882923f1cb88dc1a17f2bf0c81b1fc80d44db82Affected 45bfb2e50471abbbfd83d40d28c986078b0d24ff to before 52d13d224fdf1299c8b642807fa1ea14d693f5ffAffected 45bfb2e50471abbbfd83d40d28c986078b0d24ff to before 9dc7ad2b67772cfb94ceb3b0c9c4023c2463215dAffected 45bfb2e50471abbbfd83d40d28c986078b0d24ff to before c4b69bee3f4ef76809288fe6827bc14d4ae788efAffected 45bfb2e50471abbbfd83d40d28c986078b0d24ff to before b9b6882e243b653d379abbeaa64a500182aba370Affected 45bfb2e50471abbbfd83d40d28c986078b0d24ff to before 2ab9d830262c132ab5db2f571003d80850d56b2aAffected
LinuxLinux	4.1Affected before 4.1Not affected 5.10.226 through 5.10.Not affected 5.15.167 through 5.15.Not affected 6.1.110 through 6.1.Not affected 6.6.51 through 6.6.Not affected 6.10.10 through 6.10.*Not affected 6.11 and laterNot affected

Product

Versions

LinuxLinux

45bfb2e50471abbbfd83d40d28c986078b0d24ff to before 7882923f1cb88dc1a17f2bf0c81b1fc80d44db82Affected
45bfb2e50471abbbfd83d40d28c986078b0d24ff to before 52d13d224fdf1299c8b642807fa1ea14d693f5ffAffected
45bfb2e50471abbbfd83d40d28c986078b0d24ff to before 9dc7ad2b67772cfb94ceb3b0c9c4023c2463215dAffected
45bfb2e50471abbbfd83d40d28c986078b0d24ff to before c4b69bee3f4ef76809288fe6827bc14d4ae788efAffected
45bfb2e50471abbbfd83d40d28c986078b0d24ff to before b9b6882e243b653d379abbeaa64a500182aba370Affected
45bfb2e50471abbbfd83d40d28c986078b0d24ff to before 2ab9d830262c132ab5db2f571003d80850d56b2aAffected

LinuxLinux

4.1Affected
before 4.1Not affected
5.10.226 through 5.10.*Not affected
5.15.167 through 5.15.*Not affected
6.1.110 through 6.1.*Not affected
6.6.51 through 6.6.*Not affected
6.10.10 through 6.10.*Not affected
6.11 and laterNot affected

References

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