This is a note to let you know that I've just added the patch titled Bluetooth: hci_core: Fix leaking sent_cmd skb to the 5.16-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_core-fix-leaking-sent_cmd-skb.patch and it can be found in the queue-5.16 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. commit 09e58d862041cfd1bafee25d3714623f85d10daa Author: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx> Date: Fri Feb 4 13:12:35 2022 -0800 Bluetooth: hci_core: Fix leaking sent_cmd skb [ Upstream commit dd3b1dc3dd050f1f47cd13e300732852414270f8 ] sent_cmd memory is not freed before freeing hci_dev causing it to leak it contents. Signed-off-by: Luiz Augusto von Dentz <luiz.von.dentz@xxxxxxxxx> Signed-off-by: Marcel Holtmann <marcel@xxxxxxxxxxxx> Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx> diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c index 6c00ce302f09..1c8fb27b155a 100644 --- a/net/bluetooth/hci_core.c +++ b/net/bluetooth/hci_core.c @@ -3969,6 +3969,7 @@ void hci_release_dev(struct hci_dev *hdev) hci_dev_unlock(hdev); ida_simple_remove(&hci_index_ida, hdev->id); + kfree_skb(hdev->sent_cmd); kfree(hdev); } EXPORT_SYMBOL(hci_release_dev);