linux-kernel - Re: [PATCH v2] sched/topology: change kzalloc to kcalloc

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Message-ID: <df74c693-45fb-4c02-bc75-32f70633706a@web.de>
Date: Sun, 9 Feb 2025 12:00:11 +0100
From: Markus Elfring <Markus.Elfring@....de>
To: Ethan Carter Edwards <ethan@...ancedwards.com>,
 kernel-hardening@...ts.openwall.com, linux-hardening@...r.kernel.org,
 Ingo Molnar <mingo@...hat.com>
Cc: LKML <linux-kernel@...r.kernel.org>, kernel-janitors@...r.kernel.org,
 Ben Segall <bsegall@...gle.com>, Peter Zijlstra <peterz@...radead.org>
Subject: Re: [PATCH v2] sched/topology: change kzalloc to kcalloc

> We are replacing any instances of kzalloc(size * count, ...) with
> kcalloc(count, size, ...) due to risk of overflow [1].

* See also:
  https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/Documentation/process/submitting-patches.rst?h=v6.13#n94

* How do you think about to use a summary phrase like “Replace two kzalloc() calls
  by kcalloc() in sched_init_numa()”?

* Would you be looking for any coccicheck extensions accordingly?

Regards,
Markus