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

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Date:   Tue, 12 Sep 2023 09:09:39 -0700
From:   syzbot <syzbot+d2cdeba65d32ed1d2c4d@...kaller.appspotmail.com>
To:     chandan.babu@...cle.com, davem@...emloft.net, djwong@...nel.org,
        hdanton@...a.com, jiri@...dia.com, kuba@...nel.org,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-xfs@...r.kernel.org, syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [xfs?] KASAN: stack-out-of-bounds Read in xfs_buf_delwri_submit_buffers

syzbot suspects this issue was fixed by commit:

commit d772781964415c63759572b917e21c4f7ec08d9f
Author: Jakub Kicinski <kuba@...nel.org>
Date:   Fri Jan 6 06:33:54 2023 +0000

    devlink: bump the instance index directly when iterating

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=15554ba4680000
start commit:   3ecc37918c80 Merge tag 'media/v6.1-4' of git://git.kernel...
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=d58e7fe7f9cf5e24
dashboard link: https://syzkaller.appspot.com/bug?extid=d2cdeba65d32ed1d2c4d
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=170a950b880000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=1625948f880000

If the result looks correct, please mark the issue as fixed by replying with:

#syz fix: devlink: bump the instance index directly when iterating

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