[syzbot] [erofs?] general protection fault in erofs_bread (2)

[syzbot]

syzbot has bisected this issue to:

commit 6a318ccd7e083729cbcdbd174d7070f6b7d24130
Author: Jingbo Xu <jefflexu at linux.alibaba.com>
Date:   Fri Apr 7 22:28:08 2023 +0000

    erofs: enable long extended attribute name prefixes

bisection log:  https://syzkaller.appspot.com/x/bisect.txt?x=159afed9280000
start commit:   f1fcbaa18b28 Linux 6.4-rc2
git tree:       upstream
final oops:     https://syzkaller.appspot.com/x/report.txt?x=179afed9280000
console output: https://syzkaller.appspot.com/x/log.txt?x=139afed9280000
kernel config:  https://syzkaller.appspot.com/x/.config?x=6beb6ffe4f59ef2a
dashboard link: https://syzkaller.appspot.com/bug?extid=bbb353775d51424087f2
syz repro:      https://syzkaller.appspot.com/x/repro.syz?x=13dd834e280000
C reproducer:   https://syzkaller.appspot.com/x/repro.c?x=167ef106280000

Reported-by: syzbot+bbb353775d51424087f2 at syzkaller.appspotmail.com
Fixes: 6a318ccd7e08 ("erofs: enable long extended attribute name prefixes")

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