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Date: Tue, 26 Oct 2021 08:59:53 -0700
From: Anthony Liguori <>
To: Solar Designer <>, <>
CC: Lin Horse <>
Subject: RE: CVE-2021-3760: Linux kernel: Use-After-Free vulnerability
 of ndev->rf_conn_info object

Solar Designer <> writes:

> CAUTION: This email originated from outside of the organization. Do not click links or open attachments unless you can confirm the sender and know the content is safe.
> On Tue, Oct 26, 2021 at 02:37:20PM +0800, Lin Horse wrote:
>> 2021-09-01 Report to security and linux-distro
>> 2021-09-01 CVE-2021-3760 assigned
>> 2021-10-26 patch upstream
>> Sorry for the delay of this report T.T
> Ouch.  Let's use this opportunity to learn from the mishandling of this
> issue and avoid that for other issues.  Many things went wrong here:
> 1. The original notification by Lin to linux-distros did include "I'd
> like to ask for 14 days of the embargo", which is OK'ish, but ideally
> such messages should include the proposed public disclosure date/time -
> and that's what the instructions ask for.  When it's just "N days", I
> guess people think "that's OK'ish" and move on.  When it's a specific
> date/time, it's easier for everyone to notice it approaching - not only
> for people specifically tasked with that.  That's just a psychological
> detail that I guess nevertheless statistically affects the outcomes.
> So I think that the distros tasked with reviewing initial notifications
> should insist on the actual date/time being present in there, or add it
> on their own in an immediate follow-up.  Those distros currently are
> Oracle and Wind River.  I'd appreciate them confirming that they accept
> this clarification.
> "Promptly review new issue reports for meeting the list's requirements
> and confirm receipt of the report and, when necessary, inform the
> reporter of any issues with their report (e.g., obviously not actionable
> by the distros) and request and/or propose any required yet missing
> information (most notably, a tentative public disclosure date/time) -
> primary: Oracle, backup: Wind River"
> 2. While Lin's original message to linux-distros included a "SUGGESTED
> FIX" section (with a patch in it) and "I will do my best to work with
> the developer on fixing this", no further messages on a fix were sent to
> linux-distros.  Lin, if you did in fact work with upstream on this, you
> should have kept linux-distros aware of the progress, and especially of
> the fix getting to public Linux kernel mailing lists or public commits,
> as that ends the embargo.
> Further, distros failed to handle the corresponding "contributing back"
> tasks.  There was no activity by Gentoo lately at all, and while there
> is recent helpful activity by Amazon, they didn't act this time.
> "Stay on top of issues to ensure progress is being made, remind others
> when there's no apparent progress, as well as when the public disclosure
> date for an issue is approaching and when it's finally reached (unless
> the reporter beats you to it by making their mandatory posting to
> oss-security first) - primary: Gentoo, backup: Amazon

Yes, we totally missed this.

> Monitor relevant public channels (mailing lists, code repositories,
> etc.) and inform the reporter and the list in case an issue is made
> public prematurely (that is, leaks or is independently rediscovered) -
> primary: Amazon, backup: SUSE
> Make sure the mandatory oss-security posting is made promptly and is
> sufficiently detailed, and remind the reporter if not - primary: Gentoo,
> backup: Amazon"
> I'd like replies by Gentoo and Amazon on this, please.  They should
> either state that they'd be handling these tasks from this point on, or
> we should reassign the tasks.

This is one I think we've been able to handle previously and would like
to keep handling.


Anthony Liguori

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