CVE-2026-64075

A flaw was found in the Linux kernel's fprobe mechanism. The 'unregister_fprobe()' function did not properly wait for the RCU (Read-Copy-Update) grace period, which is a synchronization mechanism. This oversight could lead to a use-after-free vulnerability, where memory is deallocated while still being accessed. Such a flaw can result in system instability, leading to a denial of service, and in some cases, could be exploited by a local attacker to achieve arbitrary code execution.