CVE-2026-53227

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

Description An issue exists in the openvswitch component where the allocation of the reply skb (socket buffer) may occur either before or after locking the ovs mutex. If the allocation happens after locking the mutex and fails, the reply variable is assigned an ERR PTR (an encoded error pointer). Because the error cleanup process follows a reversed order that assumes the allocation occurred before locking, the system attempts to free this invalid pointer using kfree skb(), leading to a potential system crash.

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