do_one_initcall+0x120/0x6e0 init/main.c:1274
 do_initcall_level init/main.c:1336 [inline]
 do_initcalls init/main.c:1352 [inline]
 do_basic_setup init/main.c:1371 [inline]
 kernel_init_freeable+0x5c2/0x900 init/main.c:1584
 kernel_init+0x1c/0x2b0 init/main.c:1474
 ret_from_fork+0x5d4/0x6f0 arch/x86/kernel/process.c:148
 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
------------[ cut here ]------------
kernel BUG at mm/filemap.c:154!
Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI
CPU: 1 UID: 0 PID: 6021 Comm: syz.3.18 Not tainted 6.16.0-rc3-syzkaller-00329-gdfba48a70cb6 #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: 57 76 c8 ff 89 ee 31 ff 4c 8d 6b 30 e8 8a 71 c8 ff 85 ed 7e 17 e8 41 76 c8 ff 48 c7 c6 a0 17 b9 8b 48 89 df e8 32 ba 11 00 90 <0f> 0b e8 2a 76 c8 ff 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1
RSP: 0018:ffffc90004c0f3d0 EFLAGS: 00010046
RAX: 0000000000080000 RBX: ffffea0001ef0000 RCX: ffffc90013e1e000
RDX: 0000000000080000 RSI: ffffffff81f3aa3e RDI: ffff888027fe8444
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888034634220
R13: ffffea0001ef0030 R14: 0000000000000630 R15: ffffea0001ef0000
FS:  00007f6c2916e6c0(0000) GS:ffff888124852000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555591e23808 CR3: 000000007fbe8000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
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: 0033:0x7f6c2bb8e929
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:00007f6c2916e038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007f6c2bdb6320 RCX: 00007f6c2bb8e929
RDX: 0000000000000009 RSI: 0000000000600002 RDI: 0000200000000000
RBP: 00007f6c2bc10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f6c2bdb6320 R15: 00007fffb6ecfaa8
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:filemap_unaccount_folio+0xef/0x8c0 mm/filemap.c:154
Code: 57 76 c8 ff 89 ee 31 ff 4c 8d 6b 30 e8 8a 71 c8 ff 85 ed 7e 17 e8 41 76 c8 ff 48 c7 c6 a0 17 b9 8b 48 89 df e8 32 ba 11 00 90 <0f> 0b e8 2a 76 c8 ff 4c 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1
RSP: 0018:ffffc90004c0f3d0 EFLAGS: 00010046
RAX: 0000000000080000 RBX: ffffea0001ef0000 RCX: ffffc90013e1e000
RDX: 0000000000080000 RSI: ffffffff81f3aa3e RDI: ffff888027fe8444
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: ffff888034634220
R13: ffffea0001ef0030 R14: 0000000000000630 R15: ffffea0001ef0000
FS:  00007f6c2916e6c0(0000) GS:ffff888124852000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555591e23808 CR3: 000000007fbe8000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400