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Subject[PATCH] L2CAP: Fix null-ptr-deref in l2cap_sock_set_shutdown_cb
Date
Fix a critical typo on the prev patch - Sorry!

Signed-off-by: Sungwoo Kim <iam@sung-woo.kim>
---
net/bluetooth/l2cap_sock.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c
index ca8f07f35..b9381d45d 100644
--- a/net/bluetooth/l2cap_sock.c
+++ b/net/bluetooth/l2cap_sock.c
@@ -1681,9 +1681,11 @@ static void l2cap_sock_set_shutdown_cb(struct l2cap_chan *chan)
{
struct sock *sk = chan->data;

- lock_sock(sk);
- sk->sk_shutdown = SHUTDOWN_MASK;
- release_sock(sk);
+ if (sk) {
+ lock_sock(sk);
+ sk->sk_shutdown = SHUTDOWN_MASK;
+ release_sock(sk);
+ }
}

static long l2cap_sock_get_sndtimeo_cb(struct l2cap_chan *chan)
--
2.25.1
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