From: Herbert Xu <herbert@gondor.apana.org.au>
To: Waiman Long <longman@redhat.com>
Cc: steffen.klassert@secunet.com, daniel.m.jordan@oracle.com,
akpm@linux-foundation.org, linux-crypto@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH] padata: Fix possible divide-by-0 panic in padata_mt_helper()
Date: Sun, 11 Aug 2024 11:41:09 +0800 [thread overview]
Message-ID: <Zrgy1TDikPSkzaYP@gondor.apana.org.au> (raw)
In-Reply-To: <88c188dc-3664-45db-b54a-11feca59d7d2@redhat.com>
On Sat, Aug 10, 2024 at 11:27:55PM -0400, Waiman Long wrote:
>
> Now I see what you mean. Yes, we can probably change that to a DIV_ROUND_UP
> operation to make sure that chunk_size is at least one unless job->size is
> 0. I still think the current patch is a bit more fail-safe.
The very first thing the function does is check that job->size is
not zero. So this should be all that is necessary.
Thanks,
--
Email: Herbert Xu <herbert@gondor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
next prev parent reply other threads:[~2024-08-11 3:41 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-08-06 17:46 [PATCH] padata: Fix possible divide-by-0 panic in padata_mt_helper() Waiman Long
2024-08-10 4:05 ` Herbert Xu
2024-08-11 1:30 ` Waiman Long
2024-08-11 1:45 ` Herbert Xu
2024-08-11 3:11 ` Waiman Long
2024-08-11 3:13 ` Herbert Xu
2024-08-11 3:27 ` Waiman Long
2024-08-11 3:41 ` Herbert Xu [this message]
[not found] ` <c5cc5ea9-1135-4ac6-a38f-652ed07dae17@redhat.com>
2024-08-17 7:12 ` Herbert Xu
2024-08-19 22:29 ` Daniel Jordan
2024-08-20 0:07 ` Waiman Long
2024-08-20 4:06 ` Herbert Xu
2024-08-20 21:24 ` Daniel Jordan
2024-08-21 8:10 ` [EXTERNAL] " Kamlesh Gurudasani
2024-08-21 21:10 ` Kamlesh Gurudasani
2024-08-23 0:45 ` Daniel Jordan
2024-08-10 17:44 ` Kamlesh Gurudasani
2024-08-11 3:33 ` Waiman Long
2024-08-11 5:44 ` Kamlesh Gurudasani
2024-08-13 18:28 ` Waiman Long
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=Zrgy1TDikPSkzaYP@gondor.apana.org.au \
--to=herbert@gondor.apana.org.au \
--cc=akpm@linux-foundation.org \
--cc=daniel.m.jordan@oracle.com \
--cc=linux-crypto@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=longman@redhat.com \
--cc=steffen.klassert@secunet.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox