linux-kernel - Re: [RFC PATCH 0/2] mm/damon: void divide-by-zero in DAMON module's parameters application

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Message-Id: <20250826143622.54331-1-sj@kernel.org>
Date: Tue, 26 Aug 2025 07:36:22 -0700
From: SeongJae Park <sj@...nel.org>
To: Quanmin Yan <yanquanmin1@...wei.com>
Cc: SeongJae Park <sj@...nel.org>,
	akpm@...ux-foundation.org,
	damon@...ts.linux.dev,
	linux-kernel@...r.kernel.org,
	linux-mm@...ck.org,
	wangkefeng.wang@...wei.com,
	zuoze1@...wei.com
Subject: Re: [RFC PATCH 0/2] mm/damon: void divide-by-zero in DAMON module's parameters application

On Tue, 26 Aug 2025 11:36:51 +0800 Quanmin Yan <yanquanmin1@...wei.com> wrote:

> DAMON's RECLAIM or LRU_SORT modules perform no validation on
> user-configured parameters during application, which may lead
> to division-by-zero errors.
> 
> Avoid the divide-by-zero by adding validation checks when DAMON
> modules attempt to apply the parameters.

Thank you for finding and fixing these problems, Quanmin!  All looks good,
though I think it would be better to add 'Cc: stable@' tags to each patch.


Thanks,
SJ

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