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Subject[syzbot] WARNING: CPU: NUM PID: NUM at mm/huge_memory.c:LINE split_huge_page_to_l
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Hello,

syzbot found the following issue on:

HEAD commit: 680fb5b009e8 Merge tag 'arm64-upstream' into for-kernelci
git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci
console output: https://syzkaller.appspot.com/x/log.txt?x=13d186a5080000
kernel config: https://syzkaller.appspot.com/x/.config?x=4557ad2600fc45f4
dashboard link: https://syzkaller.appspot.com/bug?extid=2184d61af7d9d86337fc
compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2
userspace arch: arm64
syz repro: https://syzkaller.appspot.com/x/repro.syz?x=13c0bffd080000
C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1217ce8d080000

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+2184d61af7d9d86337fc@syzkaller.appspotmail.com

raw: 05ffc00000010801 0000000000000000 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000002ffffffff 0000000000000000
page dumped because: VM_WARN_ON_ONCE_PAGE(is_hzp)
------------[ cut here ]------------
WARNING: CPU: 0 PID: 3026 at mm/huge_memory.c:2555 split_huge_page_to_l


---
This report is generated by a bot. It may contain errors.
See https://goo.gl/tpsmEJ for more information about syzbot.
syzbot engineers can be reached at syzkaller@googlegroups.com.

syzbot will keep track of this issue. See:
https://goo.gl/tpsmEJ#status for how to communicate with syzbot.
syzbot can test patches for this issue, for details see:
https://goo.gl/tpsmEJ#testing-patches

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