CVE-2026-74601

A flaw was found in the Linux kernel's ring-buffer component. A race condition exists within the ringbufferswapcpu function, where a committing counter can temporarily drop to zero during a write operation. This allows a buffer swap to occur while a write is still in progress, resulting in an...

CVE-2026-74601: Undefined Security Weakness

In the Linux kernel, the following vulnerability has been resolved: ring-buffer: Use currentcontext for safe per-CPU buffer swap The ringbufferswapcpu function currently checks the per-CPU committing counter to determine if a buffer is actively being written to before performing the swap. However...