linux-kernel - Re: [PATCH 5.10/5.15] io_uring: fix registered files leak

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Date: Thu, 14 Mar 2024 18:55:08 +0300
From: Fedor Pchelkin <pchelkin@...ras.ru>
To: Jens Axboe <axboe@...nel.dk>
Cc: Pavel Begunkov <asml.silence@...il.com>, 
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>, stable@...r.kernel.org, io-uring@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Alexey Khoroshilov <khoroshilov@...ras.ru>, 
	lvc-project@...uxtesting.org, Nikita Zhandarovich <n.zhandarovich@...tech.ru>, 
	Roman Belyaev <belyaevrd@...dex.ru>
Subject: Re: [PATCH 5.10/5.15] io_uring: fix registered files leak

On 24/03/13 06:40PM, Jens Axboe wrote:
> Hi,
> 
> OK, here they are. Two patches attached for every stable kernel, that
> gets rid of the remnants of the SCM related code:
> 
> 5.4
> 5.10 and 5.15 (same patches)
> 6.1
> 6.6
> 6.7
> 
> Would appreciate if Fedor and Pavel could give them a once over, but I
> think they are all fine. It's just deleting the code...

Thank you, Jens!

FWIW, I think it's all good and it eliminates the reported problem
obviously. Compiled and tested the repro with my kernel config.

Just a minor notice - stable rules declare two common ways for upstream
patch mentioning in backports [1]. And the first one starts from
lowercase. No big deal here definitely but maybe somebody has some
handling of these two variants - by regexps or similar, I actually don't
know. But I see in the git history that Greg also applies the variant
you've used.

[1]: https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html#option-3

--
Fedor