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Date: Tue, 25 Jul 2023 16:09:04 +0200
From: Solar Designer <>
Cc: Tamas Koczka <>
Subject: Re: Our learnings from 42 Linux kernel exploits, we are limiting io_uring

On Tue, Jul 25, 2023 at 02:31:55PM +0200, Marcus Meissner wrote:
> has been updated with exploit information.
> I tried to backtrack through kernel git to find the exact commit where
> this locking problem got fixed, but I gave up after a while after multiple
> refactoring (and a filemove) in the io_uring codel.

I guess it's this:

as mentioned in:


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