linux-kernel - Re: [syzbot] [jfs?] UBSAN: shift-out-of-bounds in dbFindCtl

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Message-ID: <0000000000004ee9b405f82355d8@google.com>
Date:   Thu, 30 Mar 2023 12:45:22 -0700
From:   syzbot <syzbot+7edb85bc97be9f350d90@...kaller.appspotmail.com>
To:     dave.kleikamp@...cle.com, jfs-discussion@...ts.sourceforge.net,
        linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
        liushixin2@...wei.com, shaggy@...nel.org,
        syzkaller-bugs@...glegroups.com
Subject: Re: [syzbot] [jfs?] UBSAN: shift-out-of-bounds in dbFindCtl

syzbot suspects this issue was fixed by commit:

commit fad376fce0af58deebc5075b8539dc05bf639af3
Author: Liu Shixin via Jfs-discussion <jfs-discussion@...ts.sourceforge.net>
Date:   Thu Nov 3 03:01:59 2022 +0000

    fs/jfs: fix shift exponent db_agl2size negative

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=146d74a5c80000
start commit:   b229b6ca5abb Merge tag 'perf-tools-fixes-for-v6.1-2022-10-..
git tree:       upstream
kernel config:  https://syzkaller.appspot.com/x/.config?x=a66c6c673fb555e8
dashboard link: https://syzkaller.appspot.com/bug?extid=7edb85bc97be9f350d90
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=16d5817a880000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=15d68cde880000

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

#syz fix: fs/jfs: fix shift exponent db_agl2size negative

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