linux-kernel - Re: [syzbot] [xfs?] KASAN: slab-out-of-bounds Read in xlog_pack

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Message-ID: <ZLm2xooY/H81v5Xi@dread.disaster.area>
Date:   Fri, 21 Jul 2023 08:35:50 +1000
From:   Dave Chinner <david@...morbit.com>
To:     syzbot <syzbot+b7854dc75e15ffc8c2ae@...kaller.appspotmail.com>
Cc:     dchinner@...hat.com, djwong@...nel.org, hch@....de,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-xfs@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [xfs?] KASAN: slab-out-of-bounds Read in xlog_pack_data

On Wed, Jul 19, 2023 at 08:14:26PM -0700, syzbot wrote:
> syzbot suspects this issue was fixed by commit:
> 
> commit f1e1765aad7de7a8b8102044fc6a44684bc36180
> Author: Dave Chinner <dchinner@...hat.com>
> Date:   Wed Jun 28 18:04:33 2023 +0000
> 
>     xfs: journal geometry is not properly bounds checked
> 
> bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=13d43cc6a80000
> start commit:   fb054096aea0 Merge tag 'mm-hotfixes-stable-2023-06-12-12-2..
> git tree:       upstream
> kernel config:  https://syzkaller.appspot.com/x/.config?x=5bcee04c3b2a8237
> dashboard link: https://syzkaller.appspot.com/bug?extid=b7854dc75e15ffc8c2ae
> syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=1482afc7280000
> C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1429c5e7280000
> 
> If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: xfs: journal geometry is not properly bounds checked

-- 
Dave Chinner
david@...morbit.com