From 4965291acf8cc2c31dcb2fc7d292a04ee08da2dd Mon Sep 17 00:00:00 2001 From: Jarek Poplawski Date: Tue, 1 Apr 2008 23:56:17 -0700 Subject: [PATCH] [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 Reported-and-tested-by: Bernard Pidoux Signed-off-by: David S. Miller --- net/rose/af_rose.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c index 4a31a81059ab..063cbc5c26b1 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; } -- GitLab