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Date:   Fri, 17 Nov 2023 02:17:33 +0000
From:   Phillip Lougher <phillip@...ashfs.org.uk>
To:     Andrew Morton <akpm@...ux-foundation.org>,
        Lizhi Xu <lizhi.xu@...driver.com>
Cc:     syzbot+32d3767580a1ea339a81@...kaller.appspotmail.com,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        squashfs-devel@...ts.sourceforge.net,
        syzkaller-bugs@...glegroups.com
Subject: Re: [PATCH] squashfs: squashfs_read_data need to check if the length
 is 0

On 16/11/2023 21:43, Andrew Morton wrote:
> On Thu, 16 Nov 2023 11:13:52 +0800 Lizhi Xu <lizhi.xu@...driver.com> wrote:
> 
>> when the length passed in is 0, the subsequent process should be exited.
> 
> Thanks, but when fixing a bug, please always describe the runtime
> effects of that bug.  Amongst other things, other people need this
> information to be able to decide which kernel versions need patching.
> 
>> Reported-by: syzbot+32d3767580a1ea339a81@...kaller.appspotmail.com
> 
> Which is a reason why we're now adding the "Closes:" tag after
> Reported-by:.

Which is also one reason why you should always run scripts/checkpatch.pl
on your patch.  This alerted me to the need for a "Closes:" tag
after Reported-by: on the last patch I sent.

> 
> I googled the sysbot email address and so added
> 
> Closes: https://lkml.kernel.org/r/0000000000000526f2060a30a085@google.com
> 
> to the changelog.

Thanks.  That is indeed the sysbot issue that the patch fixes.

> 
> I'll assume that a -stable kernel backport is needed.
> 
> 

Yes.

Phillip

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