CVE-2024-46713

In the Linux kernel, the following vulnerability has been resolved: perf/aux: Fix AUX buffer serialization Ole reported that event-mmapmutex 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 perfevent::mmapmutex...

CVE-2024-46713

CVE-2024-46713 affects the Linux kernel perf/aux path. The root cause was that event->mmap_mutex alone was insufficient to serialize the AUX buffer, enabling race conditions. The fix adds a per-RB mutex to fully serialize AUX buffer access and corrects the previous lock order issue where perf_...