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| author | Nathan Holstein <nathan.holstein@gmail.com> | 2010-10-15 11:54:02 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-11-22 11:03:01 -0800 |
| commit | 8f836cca356e9b42c52a160bd945aad5e7173691 (patch) | |
| tree | 4e5ffb59d22a73842c4673341e25f4fd9be5beae /net | |
| parent | 5fbc4fbbb742cfb69aaf9b83512d650a601c4788 (diff) | |
Bluetooth: fix oops in l2cap_connect_req
commit d793fe8caa3911e6a1e826b45d4ee00d250cdec8 upstream.
In error cases when the ACL is insecure or we fail to allocate a new
struct sock, we jump to the "response" label. If so, "sk" will be
null and the kernel crashes.
Signed-off-by: Nathan Holstein <nathan.holstein@gmail.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'net')
| -rw-r--r-- | net/bluetooth/l2cap.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c index 0b54b7dd8401..dc6020570a32 100644 --- a/net/bluetooth/l2cap.c +++ b/net/bluetooth/l2cap.c @@ -2891,7 +2891,7 @@ static inline int l2cap_connect_req(struct l2cap_conn *conn, struct l2cap_cmd_hd struct l2cap_chan_list *list = &conn->chan_list; struct l2cap_conn_req *req = (struct l2cap_conn_req *) data; struct l2cap_conn_rsp rsp; - struct sock *parent, *uninitialized_var(sk); + struct sock *parent, *sk = NULL; int result, status = L2CAP_CS_NO_INFO; u16 dcid = 0, scid = __le16_to_cpu(req->scid); @@ -3000,7 +3000,7 @@ sendresp: L2CAP_INFO_REQ, sizeof(info), &info); } - if (!(l2cap_pi(sk)->conf_state & L2CAP_CONF_REQ_SENT) && + if (sk && !(l2cap_pi(sk)->conf_state & L2CAP_CONF_REQ_SENT) && result == L2CAP_CR_SUCCESS) { u8 buf[128]; l2cap_pi(sk)->conf_state |= L2CAP_CONF_REQ_SENT; |