CVE-2026-74727

In the Linux kernel, the following vulnerability has been resolved: ovpn: skip rehash for peers already removed from byid ovpnnlpeersetdoit resolves the target peer via ovpnpeergetbyid before taking ovpn-lock. In the window between the lookup which only takes a refcount and the subsequent...

CVE-2026-74727

CVE-2026-74727 is a race condition in the Linux kernel ovpn (OpenVPN) module that leads to a Use-After-Free (UAF) . The root cause is a TOCTOU window in ovpn_nl_peer_set_doit() and ovpn_peer_endpoints_update(): a peer resolved by ID can be concurrently removed (via OVPN_CMD_PEER_DEL, keepalive ex...

CVE-2026-74727 ovpn: skip rehash for peers already removed from by_id

In the Linux kernel, the following vulnerability has been resolved: ovpn: skip rehash for peers already removed from byid ovpnnlpeersetdoit resolves the target peer via ovpnpeergetbyid before taking ovpn-lock. In the window between the lookup which only takes a refcount and the subsequent...