linux-kernel - Re: CVE-2024-42226: usb: xhci: prevent potential failure in handle_tx

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Message-ID: <010cb430-b0bd-40f9-897e-b48e326a9caa@linux.intel.com>
Date: Tue, 6 Aug 2024 14:15:23 +0300
From: "Neronin, Niklas" <niklas.neronin@...ux.intel.com>
To: Jinjiang Tu <tujinjiang@...wei.com>
Cc: cve@...nel.org, gregkh@...uxfoundation.org,
 linux-cve-announce@...r.kernel.org, linux-kernel@...r.kernel.org,
 Mathias Nyman <mathias.nyman@...ux.intel.com>
Subject: Re: CVE-2024-42226: usb: xhci: prevent potential failure in
 handle_tx_event() for Transfer events without TRB

On 06/08/2024 12.25, Jinjiang Tu wrote:
> Hi, Niklas
> 
> The commit 66cb618bf0bb ("usb: xhci: prevent potential failure in handle_tx_event() for Transfer events without TRB")
> has been assigned with CVE-2024-42226, but the commit has been reverted in 6.1.99 and 6.6.39 due to
> performance regression. Do you have a plan to address this issue, or if this CVE should be rejected?
> 
> Thanks!
> 

Hi,

Currently, I have no plan to address this issue.

The commit in question, was not intended for any previous Linux versions.
It was created as part of my handle_tx_event() rework series. Future changes
in said series could potentially trigger the issue, so preemptively preventing
it was both simpler and more secure.

Thanks,
Niklas