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

[syzbot]

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:         7d114d27 f2fs: fix to set sbi->log_blocksize in advance
git tree:       https://git.kernel.org/pub/scm/linux/kernel/git/chao/linux.git bugfix/common
console output: https://syzkaller.appspot.com/x/log.txt?x=17652b15580000
kernel config:  https://syzkaller.appspot.com/x/.config?x=40ee55a747aeff44
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

Note: no patches were applied.
Note: testing is done by a robot and is best-effort only.