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author | 2024-01-18 12:40:34 +0800 | |
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committer | 2024-03-06 17:22:39 -0500 | |
commit | b79e040910101b020931ba0c9a6b77e81ab7f645 (patch) | |
tree | 548ef5791003c0c73077e513d439499efbd2bfcf /drivers | |
parent | Bluetooth: Remove usage of the deprecated ida_simple_xx() API (diff) | |
download | linux-b79e040910101b020931ba0c9a6b77e81ab7f645.tar.gz linux-b79e040910101b020931ba0c9a6b77e81ab7f645.tar.bz2 linux-b79e040910101b020931ba0c9a6b77e81ab7f645.zip |
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: syzbot+830d9e3fa61968246abd@syzkaller.appspotmail.com
Signed-off-by: Edward Adam Davis <eadavis@qq.com>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/bluetooth/btintel.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c index cdc5c08824a0..e5b043d96207 100644 --- a/drivers/bluetooth/btintel.c +++ b/drivers/bluetooth/btintel.c @@ -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); |