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Date: Tue, 24 May 2022 09:28:29 -0700
From: Kyle Zeng <>
To: Solar Designer <>
Subject: Re: CVE-2022-1786: Linux Kernel invalid-free in io_uring

A small correction, I shared a minimal crashing PoC to linux-distros
but not the LPE exploit.
I do not plan to share the LPE exploit because of ethical issues.

To answer your question: I intend to post the crashing PoC on May
27th. Thanks for reminding me.


On Tue, May 24, 2022 at 9:22 AM Solar Designer <> wrote:
> On Tue, May 24, 2022 at 09:10:37AM -0700, Kyle Zeng wrote:
> > # Impact
> > I wrote a proof-of-concept exploit and demonstrated that it can be
> > used to achieve local privilege escalation.
> Since you shared the PoC exploit with linux-distros, you're supposed to
> also post that to oss-security within 7 days of your first posting
> above, so by or on May 31.  Do you intend to, and when exactly?
> Alexander

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