linux-kernel - [PATCH 6.1 0/1] Bluetooth: hci_sync: cancel cmd_timer if hci

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Date:   Thu, 26 Jan 2023 16:36:12 +0300
From:   Fedor Pchelkin <pchelkin@...ras.ru>
To:     stable@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Fedor Pchelkin <pchelkin@...ras.ru>,
        Archie Pusaka <apusaka@...omium.org>,
        Abhishek Pandit-Subedi <abhishekpandit@...gle.com>,
        Marcel Holtmann <marcel@...tmann.org>,
        Johan Hedberg <johan.hedberg@...il.com>,
        Luiz Augusto von Dentz <luiz.dentz@...il.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        linux-bluetooth@...r.kernel.org, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Alexey Khoroshilov <khoroshilov@...ras.ru>,
        lvc-project@...uxtesting.org
Subject: [PATCH 6.1 0/1] Bluetooth: hci_sync: cancel cmd_timer if hci_open failed

Syzkaller reports use-after-free in hci_cmd_timeout(). The bug was fixed
in the following patch and can be cleanly applied to 6.1 stable tree.

Due to some technical rearrangement, the fix for older stable branches
requires a different patch which I'll send you in another thread.