linux-kernel - Re: [PATCH] block: prevent division by zero in blk_rq_stat

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Message-Id: <170973933060.23995.4109030710526528242.b4-ty@kernel.dk>
Date: Wed, 06 Mar 2024 08:35:30 -0700
From: Jens Axboe <axboe@...nel.dk>
To: Roman Smirnov <r.smirnov@....ru>
Cc: Sergey Shtylyov <s.shtylyov@....ru>, 
 Karina Yankevich <k.yankevich@....ru>, linux-block@...r.kernel.org, 
 linux-kernel@...r.kernel.org, lvc-project@...uxtesting.org
Subject: Re: [PATCH] block: prevent division by zero in blk_rq_stat_sum()


On Tue, 05 Mar 2024 16:45:09 +0300, Roman Smirnov wrote:
> The expression dst->nr_samples + src->nr_samples may
> have zero value on overflow. It is necessary to add
> a check to avoid division by zero.
> 
> Found by Linux Verification Center (linuxtesting.org) with Svace.
> 
> 
> [...]

Applied, thanks!

[1/1] block: prevent division by zero in blk_rq_stat_sum()
      commit: 93f52fbeaf4b676b21acfe42a5152620e6770d02

Best regards,
-- 
Jens Axboe