From: Emeltchenko Andrei <Andrei.Emeltchenko.news@gmail.com>
To: linux-bluetooth@vger.kernel.org
Subject: [PATCH] Bluetooth: Do not dereference zero sk
Date: Tue, 14 Feb 2012 15:12:57 +0200 [thread overview]
Message-ID: <1329225177-31940-1-git-send-email-Andrei.Emeltchenko.news@gmail.com> (raw)
From: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
---
net/bluetooth/l2cap_sock.c | 4 +++-
1 files changed, 3 insertions(+), 1 deletions(-)
diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index 1636029..138fe34 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -795,7 +795,7 @@ static void l2cap_sock_kill(struct sock *sk)
static int l2cap_sock_shutdown(struct socket *sock, int how)
{
struct sock *sk = sock->sk;
- struct l2cap_chan *chan = l2cap_pi(sk)->chan;
+ struct l2cap_chan *chan;
int err = 0;
BT_DBG("sock %p, sk %p", sock, sk);
@@ -803,6 +803,8 @@ static int l2cap_sock_shutdown(struct socket *sock, int how)
if (!sk)
return 0;
+ chan = l2cap_pi(sk)->chan;
+
lock_sock(sk);
if (!sk->sk_shutdown) {
if (chan->mode == L2CAP_MODE_ERTM)
--
1.7.8.3
next reply other threads:[~2012-02-14 13:12 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-02-14 13:12 Emeltchenko Andrei [this message]
2012-02-14 13:12 ` [PATCH] Bluetooth: Do not dereference zero sk Marcel Holtmann
2012-02-14 13:27 ` Szymon Janc
2012-02-16 13:17 ` Johan Hedberg
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