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Message-ID: <20230725140904.GA8733@openwall.com>
Date: Tue, 25 Jul 2023 16:09:04 +0200
From: Solar Designer <solar@...nwall.com>
To: oss-security@...ts.openwall.com
Cc: Tamas Koczka <poprdi@...omium.org>
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:
> https://yanglingxi1993.github.io/dirty_pagetable/dirty_pagetable.html
>
> 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:
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=fb348857e7b67eefe365052f1423427b66dedbf3
as mentioned in:
https://twitter.com/VAR10CK/status/1683303642173153280
Alexander
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