This is a note to let you know that I've just added the patch titled
Bluetooth: btrtl: check for NULL in btrtl_setup_realtek()
to the 6.13-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-btrtl-check-for-null-in-btrtl_setup_realte.patch
and it can be found in the queue-6.13 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 0f49a69f4bba14b234f1aa98405b5e97aa99954f
Author: Max Chou <max.chou@xxxxxxxxxxx>
Date: Tue Dec 31 14:57:19 2024 +0800
Bluetooth: btrtl: check for NULL in btrtl_setup_realtek()
[ Upstream commit 3c15082f3567032d196e8760753373332508c2ca ]
If insert an USB dongle which chip is not maintained in ic_id_table, it
will hit the NULL point accessed. Add a null point check to avoid the
Kernel Oops.
Fixes: b39910bb54d9 ("Bluetooth: Populate hci_set_hw_info for Intel and Realtek")
Reviewed-by: Alex Lu <alex_lu@xxxxxxxxxxxxxx>
Signed-off-by: Max Chou <max.chou@xxxxxxxxxxx>
Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/bluetooth/btrtl.c b/drivers/bluetooth/btrtl.c
index 83025f457ca04..d3eba0d4a57d3 100644
--- a/drivers/bluetooth/btrtl.c
+++ b/drivers/bluetooth/btrtl.c
@@ -1351,12 +1351,14 @@ int btrtl_setup_realtek(struct hci_dev *hdev)
btrtl_set_quirks(hdev, btrtl_dev);
- hci_set_hw_info(hdev,
+ if (btrtl_dev->ic_info) {
+ hci_set_hw_info(hdev,
"RTL lmp_subver=%u hci_rev=%u hci_ver=%u hci_bus=%u",
btrtl_dev->ic_info->lmp_subver,
btrtl_dev->ic_info->hci_rev,
btrtl_dev->ic_info->hci_ver,
btrtl_dev->ic_info->hci_bus);
+ }
btrtl_free(btrtl_dev);
return ret;
