CVE-2026-46165

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

Description A self-deadlock occurs in the openvswitch vport during the release of tunnel ports. Vports are protected by RCU (Read-Copy-Update), a synchronization mechanism that allows multiple readers to access data while a writer modifies it. The issue arises because rtnl unlock() calls netdev run todo() and blocks until all references are gone; however, the current code prevents the call rcu() function from being reached, meaning the vport is never freed and the reference is never released, leading to a deadlock during device removal.

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