diff options
Diffstat (limited to 'net/bluetooth/sco.c')
| -rw-r--r-- | net/bluetooth/sco.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c index d382d980fd9a..ab0cf442d57b 100644 --- a/net/bluetooth/sco.c +++ b/net/bluetooth/sco.c @@ -498,6 +498,13 @@ static void sco_sock_kill(struct sock *sk) BT_DBG("sk %p state %d", sk, sk->sk_state); + /* Sock is dead, so set conn->sk to NULL to avoid possible UAF */ + if (sco_pi(sk)->conn) { + sco_conn_lock(sco_pi(sk)->conn); + sco_pi(sk)->conn->sk = NULL; + sco_conn_unlock(sco_pi(sk)->conn); + } + /* Kill poor orphan */ bt_sock_unlink(&sco_sk_list, sk); sock_set_flag(sk, SOCK_DEAD); |