From adb08edea0119f7a5484a9f6a385fbcecdf85a63 Mon Sep 17 00:00:00 2001
From: Ville Tervo <ville.tervo@nokia.com>
Date: Wed, 4 Aug 2010 09:43:33 +0300
Subject: [PATCH] Bluetooth: Check result code of L2CAP information response
Check result code of L2CAP information response. Otherwise
it would read invalid feature mask and access invalid memory.
Signed-off-by: Ville Tervo <ville.tervo@nokia.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
net/bluetooth/l2cap.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/net/bluetooth/l2cap.c b/net/bluetooth/l2cap.c
index 0f34e1275147..3e3cd9d4e52c 100644
--- a/net/bluetooth/l2cap.c
+++ b/net/bluetooth/l2cap.c
@@ -3348,6 +3348,15 @@ static inline int l2cap_information_rsp(struct l2cap_conn *conn, struct l2cap_cm
del_timer(&conn->info_timer);
+ if (result != L2CAP_IR_SUCCESS) {
+ conn->info_state |= L2CAP_INFO_FEAT_MASK_REQ_DONE;
+ conn->info_ident = 0;
+
+ l2cap_conn_start(conn);
+
+ return 0;
+ }
+
if (type == L2CAP_IT_FEAT_MASK) {
conn->feat_mask = get_unaligned_le32(rsp->data);
--
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