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authorJarek Poplawski <jarkao2@gmail.com>2008-04-01 23:56:17 -0700
committerDavid S. Miller <davem@davemloft.net>2008-04-01 23:56:17 -0700
commit4965291acf8cc2c31dcb2fc7d292a04ee08da2dd (patch)
treef38695b8fcdee173cf714222193c8f12274ba879 /net
parentd43c7b37ad787173d08683f05eadeea0398fefdf (diff)
[ROSE/AX25] af_rose: rose_release() fix
rose_release() doesn't release sockets properly, e.g. it skips sock_orphan(), so OOPSes are triggered in sock_def_write_space(), which was observed especially while ROSE skbs were kfreed from ax25_frames_acked(). There is also sock_hold() and lock_sock() added - similarly to ax25_release(). Thanks to Bernard Pidoux for substantial help in debugging this problem. Signed-off-by: Jarek Poplawski <jarkao2@gmail.com> Reported-and-tested-by: Bernard Pidoux <bpidoux@free.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/rose/af_rose.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c
index 4a31a81059a..063cbc5c26b 100644
--- a/net/rose/af_rose.c
+++ b/net/rose/af_rose.c
@@ -598,17 +598,24 @@ static int rose_release(struct socket *sock)
if (sk == NULL) return 0;
+ sock_hold(sk);
+ sock_orphan(sk);
+ lock_sock(sk);
rose = rose_sk(sk);
switch (rose->state) {
case ROSE_STATE_0:
+ release_sock(sk);
rose_disconnect(sk, 0, -1, -1);
+ lock_sock(sk);
rose_destroy_socket(sk);
break;
case ROSE_STATE_2:
rose->neighbour->use--;
+ release_sock(sk);
rose_disconnect(sk, 0, -1, -1);
+ lock_sock(sk);
rose_destroy_socket(sk);
break;
@@ -633,6 +640,8 @@ static int rose_release(struct socket *sock)
}
sock->sk = NULL;
+ release_sock(sk);
+ sock_put(sk);
return 0;
}