handle_mm_fault+0x724/0x8c0 mm/memory.c:6307
 do_user_addr_fault+0x764/0x1390 arch/x86/mm/fault.c:1388
 handle_page_fault arch/x86/mm/fault.c:1480 [inline]
 exc_page_fault+0x68/0x110 arch/x86/mm/fault.c:1538
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
page last free pid 20044 tgid 20039 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1258 [inline]
 __free_frozen_pages+0xb0e/0xcd0 mm/page_alloc.c:2721
 __folio_put+0x21b/0x2c0 mm/swap.c:112
 update_and_free_hugetlb_folio mm/hugetlb.c:1707 [inline]
 free_huge_folio+0xd74/0x1220 mm/hugetlb.c:-1
 __folio_put+0xfd/0x2c0 mm/swap.c:105
 unmap_and_move_huge_page mm/migrate.c:1537 [inline]
 migrate_hugetlbs mm/migrate.c:1640 [inline]
 migrate_pages+0xd33/0x2850 mm/migrate.c:2070
 do_mbind mm/mempolicy.c:1425 [inline]
 kernel_mbind mm/mempolicy.c:1568 [inline]
 __do_sys_mbind mm/mempolicy.c:1642 [inline]
 __se_sys_mbind+0xa3e/0xc30 mm/mempolicy.c:1638
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
------------[ cut here ]------------
kernel BUG at mm/filemap.c:154!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 1 UID: 0 PID: 20109 Comm: syz.9.3248 Not tainted 6.15.0-rc7-syzkaller-00144-gb1427432d3b6 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:filemap_unaccount_folio+0x715/0x790 mm/filemap.c:154
Code: d1 c9 ff 48 89 df 48 c7 c6 40 10 74 8b e8 63 ec 10 00 90 0f 0b e8 7b d1 c9 ff 48 89 df 48 c7 c6 20 0f 74 8b e8 4c ec 10 00 90 <0f> 0b e8 64 d1 c9 ff 48 89 df 48 c7 c6 40 10 74 8b e8 35 ec 10 00
RSP: 0018:ffffc9000529f1a0 EFLAGS: 00010046
RAX: 1b19383fb8332d00 RBX: ffffea0000fc0000 RCX: 1b19383fb8332d00
RDX: 0000000000000005 RSI: ffffffff8d939072 RDI: ffff88802480bc00
RBP: 0000000000000001 R08: ffff8880b8923e93 R09: 1ffff110171247d2
R10: dffffc0000000000 R11: ffffed10171247d3 R12: 0000000000000040
R13: 1ffffd40001f8000 R14: 1ffffd40001f8001 R15: ffffea0000fc0008
FS:  00007fb1263b26c0(0000) GS:ffff8881261c2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33a1aff8 CR3: 0000000063e8c000 CR4: 0000000000350ef0
Call Trace:
 <TASK>
 __filemap_remove_folio+0xc3/0x500 mm/filemap.c:223
 filemap_remove_folio+0xe6/0x1f0 mm/filemap.c:253
 hugetlb_delete_from_page_cache fs/hugetlbfs/inode.c:334 [inline]
 remove_inode_single_folio fs/hugetlbfs/inode.c:539 [inline]
 remove_inode_hugepages+0x581/0x10e0 fs/hugetlbfs/inode.c:596
 hugetlbfs_punch_hole fs/hugetlbfs/inode.c:719 [inline]
 hugetlbfs_fallocate+0xbc7/0x1100 fs/hugetlbfs/inode.c:745
 vfs_fallocate+0x6a3/0x830 fs/open.c:338
 madvise_remove mm/madvise.c:1034 [inline]
 madvise_vma_behavior mm/madvise.c:1263 [inline]
 madvise_walk_vmas mm/madvise.c:1530 [inline]
 madvise_do_behavior+0x1749/0x3500 mm/madvise.c:1695
 do_madvise mm/madvise.c:1782 [inline]
 __do_sys_madvise mm/madvise.c:1790 [inline]
 __se_sys_madvise mm/madvise.c:1788 [inline]
 __x64_sys_madvise+0x10c/0x150 mm/madvise.c:1788
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xf6/0x210 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb12898e969
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fb1263b2038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007fb128bb6240 RCX: 00007fb12898e969
RDX: 0000000000000009 RSI: 0000000000600002 RDI: 0000200000000000
RBP: 00007fb128a10ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fb128bb6240 R15: 00007ffee9749308
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:filemap_unaccount_folio+0x715/0x790 mm/filemap.c:154
Code: d1 c9 ff 48 89 df 48 c7 c6 40 10 74 8b e8 63 ec 10 00 90 0f 0b e8 7b d1 c9 ff 48 89 df 48 c7 c6 20 0f 74 8b e8 4c ec 10 00 90 <0f> 0b e8 64 d1 c9 ff 48 89 df 48 c7 c6 40 10 74 8b e8 35 ec 10 00
RSP: 0018:ffffc9000529f1a0 EFLAGS: 00010046
RAX: 1b19383fb8332d00 RBX: ffffea0000fc0000 RCX: 1b19383fb8332d00
RDX: 0000000000000005 RSI: ffffffff8d939072 RDI: ffff88802480bc00
RBP: 0000000000000001 R08: ffff8880b8923e93 R09: 1ffff110171247d2
R10: dffffc0000000000 R11: ffffed10171247d3 R12: 0000000000000040
R13: 1ffffd40001f8000 R14: 1ffffd40001f8001 R15: ffffea0000fc0008
FS:  00007fb1263b26c0(0000) GS:ffff8881261c2000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b33a1aff8 CR3: 0000000063e8c000 CR4: 0000000000350ef0