mptcp: fix race in msk status update
Currently subflow_finish_connect() changes unconditionally any msk socket status other than TCP_ESTABLISHED. If an unblocking connect() races with close(), we can end-up triggering: IPv4: Attempt to release TCP socket in state 1 00000000e32b8b7e when the msk socket is disposed. Be sure to enter the established status only from SYN_SENT. Fixes: c3c123d1 ("net: mptcp: don't hang in mptcp_sendmsg() after TCP fallback") Signed-off-by: Paolo Abeni <pabeni@redhat.com> Reviewed-by: Mat Martineau <mathew.j.martineau@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Showing
Please register or sign in to comment