perf/aux: Fix AUX buffer serialization
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.
02 / AFFECTED SOFTWARE
Affected packages
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
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.
05 / REFERENCES
Further evidence
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
- https://git.kernel.org/stable/c/2ab9d830262c132ab5db2f571003d80850d56b2a
- https://git.kernel.org/stable/c/52d13d224fdf1299c8b642807fa1ea14d693f5ff
- https://git.kernel.org/stable/c/7882923f1cb88dc1a17f2bf0c81b1fc80d44db82
- https://git.kernel.org/stable/c/9dc7ad2b67772cfb94ceb3b0c9c4023c2463215d
- https://git.kernel.org/stable/c/b9b6882e243b653d379abbeaa64a500182aba370
- https://git.kernel.org/stable/c/c4b69bee3f4ef76809288fe6827bc14d4ae788ef
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/46xxx/CVE-2024-46713.json
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://nvd.nist.gov/vuln/detail/CVE-2024-46713