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Bluetooth: hci_event: Fix not checking if HCI_OP_INQUIRY has been sent

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commit 99e67d46e5ff3c7c901af6009edec72d3d363be8 upstream.

Before setting HCI_INQUIRY bit check if HCI_OP_INQUIRY was really sent
otherwise the controller maybe be generating invalid events or, more
likely, it is a result of fuzzing tools attempting to test the right
behavior of the stack when unexpected events are generated.

Cc: stable@vger.kernel.org
Link: https://bugzilla.kernel.org/show_bug.cgi?id=218151
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Luiz Augusto von Dentz 2023-11-20 10:04:39 -05:00 committed by Ksawlii
parent fbbeeeb3c2
commit 5ce5740491
1 changed files with 2 additions and 1 deletions
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3
net/bluetooth/hci_event.c
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@ -1834,7 +1834,8 @@ static void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
return;
}
set_bit(HCI_INQUIRY, &hdev->flags);
if (hci_sent_cmd_data(hdev, HCI_OP_INQUIRY))
set_bit(HCI_INQUIRY, &hdev->flags);
}
static void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)