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

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Message-ID: <000000000000b76f3a0600e28b22@google.com>
Date:   Wed, 19 Jul 2023 20:14:26 -0700
From:   syzbot <syzbot+b7854dc75e15ffc8c2ae@...kaller.appspotmail.com>
To:     david@...morbit.com, 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

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

For information about bisection process see: https://goo.gl/tpsmEJ#bisection