linux-kernel - Re: [PATCH] Bluetooth: btusb: reorder cleanup in btusb

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Message-Id: 
 <176254261224.1132280.14674857749168928355.git-patchwork-notify@kernel.org>
Date: Fri, 07 Nov 2025 19:10:12 +0000
From: patchwork-bot+bluetooth@...nel.org
To: Raphael Pinsonneault-Thibeault <rpthibeault@...il.com>
Cc: marcel@...tmann.org, luiz.dentz@...il.com,
 linux-bluetooth@...r.kernel.org, linux-kernel@...r.kernel.org,
 linux-kernel-mentees@...ts.linux.dev,
 syzbot+2fc81b50a4f8263a159b@...kaller.appspotmail.com,
 skhan@...uxfoundation.org
Subject: Re: [PATCH] Bluetooth: btusb: reorder cleanup in btusb_disconnect to
 avoid UAF

Hello:

This patch was applied to bluetooth/bluetooth-next.git (master)
by Luiz Augusto von Dentz <luiz.von.dentz@...el.com>:

On Wed,  5 Nov 2025 14:28:41 -0500 you wrote:
> There is a KASAN: slab-use-after-free read in btusb_disconnect().
> Calling "usb_driver_release_interface(&btusb_driver, data->intf)" will
> free the btusb data associated with the interface. The same data is
> then used later in the function, hence the UAF.
> 
> Fix by moving the accesses to btusb data to before the data is free'd.
> 
> [...]

Here is the summary with links:
  - Bluetooth: btusb: reorder cleanup in btusb_disconnect to avoid UAF
    https://git.kernel.org/bluetooth/bluetooth-next/c/162d88a68ccb

You are awesome, thank you!
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