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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
45bfb2e50471abbbfd83d40d28c986078b0d24ff to < 7882923f1cb88dc1a17f2bf0c81b1fc80d44db82affected45bfb2e50471abbbfd83d40d28c986078b0d24ff to < 52d13d224fdf1299c8b642807fa1ea14d693f5ffaffected45bfb2e50471abbbfd83d40d28c986078b0d24ff to < 9dc7ad2b67772cfb94ceb3b0c9c4023c2463215daffected45bfb2e50471abbbfd83d40d28c986078b0d24ff to < c4b69bee3f4ef76809288fe6827bc14d4ae788efaffected45bfb2e50471abbbfd83d40d28c986078b0d24ff to < b9b6882e243b653d379abbeaa64a500182aba370affected45bfb2e50471abbbfd83d40d28c986078b0d24ff to < 2ab9d830262c132ab5db2f571003d80850d56b2aaffected
Linux Linux
Default version status: affected
4.1affected0 to < 4.1unaffected5.10.226 to ≤ 5.10.*unaffected5.15.167 to ≤ 5.15.*unaffected6.1.110 to ≤ 6.1.*unaffected6.6.51 to ≤ 6.6.*unaffected6.10.10 to ≤ 6.10.*unaffected6.11 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/7882923f1cb88dc1a17f2bf0c81b1fc80d44db82 ↗
- https://git.kernel.org/stable/c/52d13d224fdf1299c8b642807fa1ea14d693f5ff ↗
- https://git.kernel.org/stable/c/9dc7ad2b67772cfb94ceb3b0c9c4023c2463215d ↗
- https://git.kernel.org/stable/c/c4b69bee3f4ef76809288fe6827bc14d4ae788ef ↗
- https://git.kernel.org/stable/c/b9b6882e243b653d379abbeaa64a500182aba370 ↗
- https://git.kernel.org/stable/c/2ab9d830262c132ab5db2f571003d80850d56b2a ↗
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html ↗
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.html ↗