Re: [syzbot] [f2fs?] UBSAN: shift-out-of-bounds in __f2fs_commit_super

From: syzbot

Date: Thu Sep 24 2026 - 09:03:16 EST


Hello,

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

Reported-by: syzbot+dfcbc1741488709db4b2@xxxxxxxxxxxxxxxxxxxxxxxxx
Tested-by: syzbot+dfcbc1741488709db4b2@xxxxxxxxxxxxxxxxxxxxxxxxx

Tested on:

commit: 3d778354 Add linux-next specific files for 20260923
git tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
console output: https://syzkaller.appspot.com/x/log.txt?x=156d9c05580000
kernel config: https://syzkaller.appspot.com/x/.config?x=6993cf63b5648f57
dashboard link: https://syzkaller.appspot.com/bug?extid=dfcbc1741488709db4b2
compiler: Debian clang version 22.1.8 (++20260613092233+e80beda6e255-1~exp1~20260613092250.77), Debian LLD 22.1.8
patch: https://syzkaller.appspot.com/x/patch.diff?x=11938205580000

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