syzbot has bisected this issue to: commit d82dcd9e21b77d338dc4875f3d4111f0db314a7c Author: Roberto Sassu <roberto.sassu@xxxxxxxxxx> Date: Fri Mar 31 12:32:18 2023 +0000 reiserfs: Add security prefix to xattr name in reiserfs_security_write() bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=11c39639280000 start commit: 421ca22e3138 Merge tag 'nfs-for-6.4-2' of git://git.linux-.. git tree: upstream final oops: https://syzkaller.appspot.com/x/report.txt?x=13c39639280000 console output: https://syzkaller.appspot.com/x/log.txt?x=15c39639280000 kernel config: https://syzkaller.appspot.com/x/.config?x=7d8067683055e3f5 dashboard link: https://syzkaller.appspot.com/bug?extid=0a684c061589dcc30e51 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=14312791280000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=12da8605280000 Reported-by: syzbot+0a684c061589dcc30e51@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: d82dcd9e21b7 ("reiserfs: Add security prefix to xattr name in reiserfs_security_write()") For information about bisection process see: https://goo.gl/tpsmEJ#bisection