Re: [syzbot] [xfs?] KASAN: slab-out-of-bounds Read in xlog_pack_data

From: Dave Chinner
Date: Thu Jul 20 2023 - 18:36:00 EST


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@xxxxxxxxxx>
> 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@xxxxxxxxxxxxx