Commit b79e0409 authored by Edward Adam Davis's avatar Edward Adam Davis Committed by Luiz Augusto von Dentz
Browse files

Bluetooth: btintel: Fix null ptr deref in btintel_read_version 



If hci_cmd_sync_complete() is triggered and skb is NULL, then
hdev->req_skb is NULL, which will cause this issue.

Reported-and-tested-by: default avatar <syzbot+830d9e3fa61968246abd@syzkaller.appspotmail.com>
Signed-off-by: default avatarEdward Adam Davis <eadavis@qq.com>
Signed-off-by: default avatarLuiz Augusto von Dentz <luiz.von.dentz@intel.com>
parent 9c16d0c8

drivers/bluetooth/btintel.c

+1 −1
Original line number Diff line number Diff line
@@ -435,7 +435,7 @@ int btintel_read_version(struct hci_dev *hdev, struct intel_version *ver) 
	struct sk_buff *skb;



	skb = __hci_cmd_sync(hdev, 0xfc05, 0, NULL, HCI_CMD_TIMEOUT);

	if (IS_ERR(skb)) {

	if (IS_ERR_OR_NULL(skb)) {

		bt_dev_err(hdev, "Reading Intel version information failed (%ld)",

			   PTR_ERR(skb));

		return PTR_ERR(skb);