CVE-2025-40133 — mptcp: Use __sk_dst_get() and dst_dev_rcu() in mptcp_active_enable().
In the Linux kernel, the following vulnerability has been resolved: mptcp: Use __sk_dst_get() and dst_dev_rcu() in mptcp_active_enable(). mptcp_active_enable() is called from …
Published: 2025-11-12 · CVSS: 8.1 · CVSS 3.1
In the Linux kernel, the following vulnerability has been resolved: mptcp: Use __sk_dst_get() and dst_dev_rcu() in mptcp_active_enable(). mptcp_active_enable() is called from subflow_finish_connect(), which is icsk->icsk_af_ops->sk_rx_dst_set() and it's not always under RCU. Using sk_dst_get(sk)->dev could trigger UAF. Let's use __sk_dst_get() and dst_dev_rcu().
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7