summaryrefslogtreecommitdiffstats
path: root/net/bluetooth
diff options
context:
space:
mode:
authorPeilin Ye <yepeilin.cs@gmail.com>2020-07-10 17:39:18 -0400
committerMarcel Holtmann <marcel@holtmann.org>2020-07-13 18:40:58 +0200
commit75bbd2ea50ba1c5d9da878a17e92eac02fe0fd3a (patch)
treefa06ec12f718acee518acacabfdaf98f374cf4df /net/bluetooth
parent3344537f614b966f726c1ec044d1c70a8cabe178 (diff)
downloadlinux-75bbd2ea50ba1c5d9da878a17e92eac02fe0fd3a.tar.bz2
Bluetooth: Prevent out-of-bounds read in hci_inquiry_result_evt()
Check `num_rsp` before using it as for-loop counter. Cc: stable@vger.kernel.org Signed-off-by: Peilin Ye <yepeilin.cs@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/bluetooth')
-rw-r--r--net/bluetooth/hci_event.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 927bde511170..b97d0247983c 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -2517,7 +2517,7 @@ static void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
- if (!num_rsp)
+ if (!num_rsp || skb->len < num_rsp * sizeof(*info) + 1)
return;
if (hci_dev_test_flag(hdev, HCI_PERIODIC_INQ))