folios_put_refs+0x559/0x640 mm/swap.c:992
 free_pages_and_swap_cache+0x277/0x520 mm/swap_state.c:264
 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline]
 tlb_batch_pages_flush mm/mmu_gather.c:149 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:397 [inline]
 tlb_flush_mmu+0x3a0/0x680 mm/mmu_gather.c:404
 tlb_finish_mmu+0xc3/0x1d0 mm/mmu_gather.c:497
 exit_mmap+0x44c/0xb50 mm/mmap.c:1297
 __mmput+0x118/0x420 kernel/fork.c:1121
 exit_mm+0x1da/0x2c0 kernel/exit.c:581
 do_exit+0x648/0x22e0 kernel/exit.c:952
 do_group_exit+0x21c/0x2d0 kernel/exit.c:1105
 get_signal+0x1286/0x1340 kernel/signal.c:3034
 arch_do_signal_or_restart+0x9a/0x750 arch/x86/kernel/signal.c:337
 exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline]
 irqentry_exit_to_user_mode+0x81/0x120 kernel/entry/common.c:184
 exc_page_fault+0x9f/0xf0 arch/x86/mm/fault.c:1535
 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
------------[ cut here ]------------
kernel BUG at mm/filemap.c:154!
Oops: invalid opcode: 0000 [#1] SMP KASAN PTI
CPU: 0 UID: 0 PID: 29448 Comm: syz.6.5539 Not tainted 6.16.0-rc5-syzkaller-00266-g3f31a806a62e #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: 54 c9 ff 48 89 df 48 c7 c6 e0 3f 94 8b e8 93 f9 10 00 90 0f 0b e8 fb 53 c9 ff 48 89 df 48 c7 c6 c0 3e 94 8b e8 7c f9 10 00 90 <0f> 0b e8 e4 53 c9 ff 48 89 df 48 c7 c6 e0 3f 94 8b e8 65 f9 10 00
RSP: 0018:ffffc900052070e0 EFLAGS: 00010046
RAX: e1e562cdddc02200 RBX: ffffea0001d50000 RCX: e1e562cdddc02200
RDX: 0000000000000005 RSI: ffffffff8db869b0 RDI: ffff88801eb55a00
RBP: 0000000000000001 R08: ffff8880b8624293 R09: 1ffff110170c4852
R10: dffffc0000000000 R11: ffffed10170c4853 R12: 0000000000000040
R13: 1ffffd40003aa000 R14: 1ffffd40003aa001 R15: ffffea0001d50008
FS:  00007f75217106c0(0000) GS:ffff888125c1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000921b0 CR3: 000000005c0c8000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000097 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
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+0x594/0x1100 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+0x6a0/0x830 fs/open.c:341
 madvise_remove mm/madvise.c:1043 [inline]
 madvise_vma_behavior mm/madvise.c:1274 [inline]
 madvise_walk_vmas mm/madvise.c:1541 [inline]
 madvise_do_behavior+0x169d/0x2e70 mm/madvise.c:1733
 do_madvise+0x174/0x220 mm/madvise.c:1826
 __do_sys_madvise mm/madvise.c:1835 [inline]
 __se_sys_madvise mm/madvise.c:1833 [inline]
 __x64_sys_madvise+0xa7/0xc0 mm/madvise.c:1833
 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
 do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f752098e929
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:00007f7521710038 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007f7520bb6320 RCX: 00007f752098e929
RDX: 0000000000000009 RSI: 0000000000600002 RDI: 0000200000000000
RBP: 00007f7520a10b39 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000001 R14: 00007f7520bb6320 R15: 00007f7520cdfa28
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:filemap_unaccount_folio+0x715/0x790 mm/filemap.c:154
Code: 54 c9 ff 48 89 df 48 c7 c6 e0 3f 94 8b e8 93 f9 10 00 90 0f 0b e8 fb 53 c9 ff 48 89 df 48 c7 c6 c0 3e 94 8b e8 7c f9 10 00 90 <0f> 0b e8 e4 53 c9 ff 48 89 df 48 c7 c6 e0 3f 94 8b e8 65 f9 10 00
RSP: 0018:ffffc900052070e0 EFLAGS: 00010046
RAX: e1e562cdddc02200 RBX: ffffea0001d50000 RCX: e1e562cdddc02200
RDX: 0000000000000005 RSI: ffffffff8db869b0 RDI: ffff88801eb55a00
RBP: 0000000000000001 R08: ffff8880b8624293 R09: 1ffff110170c4852
R10: dffffc0000000000 R11: ffffed10170c4853 R12: 0000000000000040
R13: 1ffffd40003aa000 R14: 1ffffd40003aa001 R15: ffffea0001d50008
FS:  00007f75217106c0(0000) GS:ffff888125c1b000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00002000000921b0 CR3: 000000005c0c8000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000097 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400