got a rare NULL pointer dereference in clear_bit
Signed-off-by: Mark Salyzyn <saly...@android.com>
---
net/unix/af_unix.c | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c
index 5266ea7..37a8925 100644
--- a/net/unix/af_unix.c
+++ b/net/unix/af_unix.c
@@ -1880,6 +1880,11 @@ static long unix_stream_data_wait(struct sock *sk, long
timeo,
unix_state_unlock(sk);
timeo = freezable_schedule_timeout(timeo);
unix_state_lock(sk);
+
+ /* sk_socket may have been killed while unlocked */
+ if (!sk->sk_socket)
+ break;
+
clear_bit(SOCK_ASYNC_WAITDATA, &sk->sk_socket->flags);
}
--
2.2.0.rc0.207.ga3a616c
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