CVE-2026-45929

A flaw was found in the Linux kernel's ovpn module. A use-after-free vulnerability exists in the ovpn_net_xmit function where a freed skb (socket buffer) pointer can be used for subsequent operations. This can occur when skb_share_check frees the original skb if it is shared, leading to a stale pointer being used. This flaw could potentially lead to system instability, denial of service, or other unspecified impacts.