This is a note to let you know that I've just added the patch titled
Bluetooth: hci_event: Fix not checking if HCI_OP_INQUIRY has been sent
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
bluetooth-hci_event-fix-not-checking-if-hci_op_inquiry-has-been-sent.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 99e67d46e5ff3c7c901af6009edec72d3d363be8 Mon Sep 17 00:00:00 2001
From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
Date: Mon, 20 Nov 2023 10:04:39 -0500
Subject: Bluetooth: hci_event: Fix not checking if HCI_OP_INQUIRY has been sent
From: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
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@xxxxxxxxxxxxxxx
Link: https://bugzilla.kernel.org/show_bug.cgi?id=218151
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
net/bluetooth/hci_event.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1785,7 +1785,8 @@ static void hci_cs_inquiry(struct hci_de
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)
Patches currently in stable-queue which might be from luiz.von.dentz@xxxxxxxxx are
queue-5.4/bluetooth-hci_event-fix-not-checking-if-hci_op_inquiry-has-been-sent.patch
