CVE-2026-68334

Name of the Vulnerable Software and Affected Versions Linux kernel (affected versions not specified)

Description A race condition exists in the rxrpc wake up io thread() function. The function verifies the local->io thread pointer before attempting to wake the thread, but it reloads the pointer when calling wake up process(). Because local->io thread is cleared using WRITE ONCE() during the I/O thread exit, the second load may return NULL even if the initial check was successful.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.