Re: [v5.15] UBSAN: shift-out-of-bounds in ocfs2_fill_super

From: syzbot

Date: Mon Mar 23 2026 - 23:40:19 EST


Hello,

syzbot has tested the proposed patch and the reproducer did not trigger any issue:

Reported-by: syzbot+c6104ecfe56e0fd6b616@xxxxxxxxxxxxxxxxxxxxxxxxx
Tested-by: syzbot+c6104ecfe56e0fd6b616@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit: 3330a8d3 Linux 5.15.201
git tree: git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
console output: https://syzkaller.appspot.com/x/log.txt?x=146dc1d6580000
kernel config: https://syzkaller.appspot.com/x/.config?x=30e28339904629ca
dashboard link: https://syzkaller.appspot.com/bug?extid=c6104ecfe56e0fd6b616
compiler: Debian clang version 21.1.8 (++20251221033036+2078da43e25a-1~exp1~20251221153213.50), Debian LLD 21.1.8
patch: https://syzkaller.appspot.com/x/patch.diff?x=157f906a580000

Note: testing is done by a robot and is best-effort only.