CVE-2026-46181

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

Description A misuse of Read-Copy Update (RCU), a synchronization mechanism that allows multiple readers to access data while a writer modifies it, occurs in the mlx4 srq event() function. The mlx4 srq structure is not freed using RCU and is accessed outside of RCU critical sections. Additionally, a system crash can occur if an event is delivered before the srq object has completed its initialization.

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