syzbot suspects this issue was fixed by commit: commit 15a8d68e9dc23dc9def4bd7e9563db60f4f86580 Author: Wei Yang <richard.weiyang@xxxxxxxxxxxxxxxxx> Date: Tue Oct 13 23:56:33 2020 +0000 mm/hugetlb: a page from buddy is not on any list bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=13612350d00000 start commit: 1590a2e1 Merge tag 'acpi-5.8-rc3' of git://git.kernel.org/.. git tree: upstream kernel config: https://syzkaller.appspot.com/x/.config?x=bf3aec367b9ab569 dashboard link: https://syzkaller.appspot.com/bug?extid=18a1619cceea30ed45af syz repro: https://syzkaller.appspot.com/x/repro.syz?x=10c79dbb100000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=169bba3d100000 If the result looks correct, please mark the issue as fixed by replying with: #syz fix: mm/hugetlb: a page from buddy is not on any list For information about bisection process see: https://goo.gl/tpsmEJ#bisection