unmap_and_move_huge_page mm/migrate.c:1478 [inline]
 migrate_hugetlbs mm/migrate.c:1581 [inline]
 migrate_pages+0xab8/0x23b0 mm/migrate.c:2011
 do_mbind+0x6f0/0xf30 mm/mempolicy.c:1542
 kernel_mbind+0x1e3/0x1f0 mm/mempolicy.c:1685
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 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: 0 UID: 0 PID: 12673 Comm: syz.3.1846 Not tainted 6.16.0-rc4-syzkaller-00013-g66701750d556 #0 PREEMPT(full) 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
RIP: 0010:filemap_unaccount_folio+0xef/0x8c0 mm/filemap.c:154
Code: c7 76 c8 ff 89 ee 31 ff 4c 8d 6b 30 e8 fa 71 c8 ff 85 ed 7e 17 e8 b1 76 c8 ff 48 c7 c6 a0 17 b9 8b 48 89 df e8 32 ba 11 00 90 <0f> 0b e8 9a 76 c8 ff 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1
RSP: 0018:ffffc900036773d0 EFLAGS: 00010046
RAX: 0000000000080000 RBX: ffffea0001b70000 RCX: ffffc90011305000
RDX: 0000000000080000 RSI: ffffffff81f3a9fe RDI: ffff88803220a884
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88802ae5f4c0
R13: ffffea0001b70030 R14: 0000000000000510 R15: ffffea0001b70000
FS:  00007fb6e311e6c0(0000) GS:ffff888124752000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000011a2b0 CR3: 0000000048942000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __filemap_remove_folio mm/filemap.c:223 [inline]
 filemap_remove_folio+0xf1/0x250 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+0x74a/0xed0 fs/hugetlbfs/inode.c:596
 hugetlbfs_punch_hole fs/hugetlbfs/inode.c:719 [inline]
 hugetlbfs_fallocate+0xf3f/0x12e0 fs/hugetlbfs/inode.c:745
 vfs_fallocate+0x60b/0x10c0 fs/open.c:341
 madvise_remove mm/madvise.c:1043 [inline]
 madvise_vma_behavior+0x21ca/0x2420 mm/madvise.c:1274
 madvise_walk_vmas+0x1d1/0x2c0 mm/madvise.c:1541
 madvise_do_behavior+0x15d/0x3f0 mm/madvise.c:1733
 do_madvise+0x161/0x230 mm/madvise.c:1826
 __do_sys_madvise mm/madvise.c:1835 [inline]
 __se_sys_madvise mm/madvise.c:1833 [inline]
 __x64_sys_madvise+0xa9/0x110 mm/madvise.c:1833
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xcd/0x4c0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb6e238e929
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:00007fb6e311e038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007fb6e25b6240 RCX: 00007fb6e238e929
RDX: 0000000000000009 RSI: 0000000000600002 RDI: 0000200000000000
RBP: 00007fb6e2410b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fb6e25b6240 R15: 00007fffd1ded188
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:filemap_unaccount_folio+0xef/0x8c0 mm/filemap.c:154
Code: c7 76 c8 ff 89 ee 31 ff 4c 8d 6b 30 e8 fa 71 c8 ff 85 ed 7e 17 e8 b1 76 c8 ff 48 c7 c6 a0 17 b9 8b 48 89 df e8 32 ba 11 00 90 <0f> 0b e8 9a 76 c8 ff 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1
RSP: 0018:ffffc900036773d0 EFLAGS: 00010046
RAX: 0000000000080000 RBX: ffffea0001b70000 RCX: ffffc90011305000
RDX: 0000000000080000 RSI: ffffffff81f3a9fe RDI: ffff88803220a884
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff88802ae5f4c0
R13: ffffea0001b70030 R14: 0000000000000510 R15: ffffea0001b70000
FS:  00007fb6e311e6c0(0000) GS:ffff888124752000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000020000011a2b0 CR3: 0000000048942000 CR4: 00000000003526f0