linux-kernel - Re: io_uring: Fix exception handling in io_ring_ctx

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Date: Wed, 10 Jan 2024 12:23:45 +0100
From: Markus Elfring <Markus.Elfring@....de>
To: kernel-janitors@...r.kernel.org, io-uring@...r.kernel.org,
 Hao Xu <howeyxu@...cent.com>, Jens Axboe <axboe@...nel.dk>,
 Pavel Begunkov <asml.silence@...il.com>
Cc: cocci@...ia.fr, LKML <linux-kernel@...r.kernel.org>
Subject: Re: io_uring: Fix exception handling in io_ring_ctx_alloc()

> The label “err” was used to jump to a kfree() call despite of
> the detail in the implementation of the function “io_ring_ctx_alloc”
> that it was determined already that a corresponding variable contained
> a null pointer because of a failed memory allocation.
>
> 1. Thus use more appropriate labels instead.
>
> 2. Reorder jump targets at the end.
>
> 3. Omit the statement “kfree(ctx->io_bl);”.

Is this patch still in review queues?

See also:
https://lore.kernel.org/cocci/aa867594-e79d-6d08-a08e-8c9e952b4724@web.de/
https://sympa.inria.fr/sympa/arc/cocci/2023-03/msg00114.html

Regards,
Markus