do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
page last free pid 5890 tgid 5887 stack trace:
 reset_page_owner include/linux/page_owner.h:25 [inline]
 free_pages_prepare mm/page_alloc.c:1205 [inline]
 free_frozen_pages+0xe0d/0x10e0 mm/page_alloc.c:2738
 __folio_put+0x2b3/0x360 mm/swap.c:112
 folio_put include/linux/mm.h:1457 [inline]
 collapse_file mm/khugepaged.c:2262 [inline]
 hpage_collapse_scan_file+0x3687/0x5230 mm/khugepaged.c:2352
 madvise_collapse+0x5f4/0xd00 mm/khugepaged.c:2794
 madvise_vma_behavior mm/madvise.c:1330 [inline]
 madvise_walk_vmas mm/madvise.c:1511 [inline]
 madvise_do_behavior+0x1365/0x3c00 mm/madvise.c:1646
 do_madvise mm/madvise.c:1744 [inline]
 __do_sys_madvise mm/madvise.c:1752 [inline]
 __se_sys_madvise mm/madvise.c:1750 [inline]
 __x64_sys_madvise+0x11b/0x140 mm/madvise.c:1750
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
------------[ cut here ]------------
kernel BUG at mm/filemap.c:155!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 UID: 0 PID: 5894 Comm: syz-executor412 Not tainted 6.14.0-rc2-next-20250210-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:filemap_unaccount_folio+0x73d/0x7d0 mm/filemap.c:155
Code: de c7 ff 48 89 df 48 c7 c6 40 d3 13 8c e8 0b 04 12 00 90 0f 0b e8 b3 de c7 ff 48 89 df 48 c7 c6 20 d2 13 8c e8 f4 03 12 00 90 <0f> 0b e8 9c de c7 ff 48 89 df 48 c7 c6 40 d3 13 8c e8 dd 03 12 00
RSP: 0018:ffffc900040ef010 EFLAGS: 00010046
RAX: ac344b46b1f95900 RBX: ffffea0001da0000 RCX: ffffc900040eec03
RDX: 0000000000000004 RSI: ffffffff8c0ab280 RDI: ffffffff8c60da20
RBP: 0000000000000000 R08: ffffffff901bcf77 R09: 1ffffffff20379ee
R10: dffffc0000000000 R11: fffffbfff20379ef R12: dffffc0000000000
R13: 1ffffd40003b4001 R14: ffff88807c9ecb78 R15: ffffea0001da0008
FS:  00007fa3ceb226c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000400000021000 CR3: 00000000290ea000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __filemap_remove_folio+0xc7/0x670 mm/filemap.c:224
 filemap_remove_folio+0xe1/0x1f0 mm/filemap.c:257
 truncate_inode_folio+0x5d/0x70 mm/truncate.c:176
 shmem_undo_range+0x1035/0x1820 mm/shmem.c:1196
 shmem_truncate_range mm/shmem.c:1224 [inline]
 shmem_fallocate+0x431/0xf20 mm/shmem.c:3674
 vfs_fallocate+0x623/0x7a0 fs/open.c:338
 madvise_remove mm/madvise.c:1034 [inline]
 madvise_vma_behavior mm/madvise.c:1269 [inline]
 madvise_walk_vmas mm/madvise.c:1511 [inline]
 madvise_do_behavior+0x1f29/0x3c00 mm/madvise.c:1646
 do_madvise mm/madvise.c:1744 [inline]
 __do_sys_madvise mm/madvise.c:1752 [inline]
 __se_sys_madvise mm/madvise.c:1750 [inline]
 __x64_sys_madvise+0x11b/0x140 mm/madvise.c:1750
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fa3ceb8b299
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 51 18 00 00 90 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 b0 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007fa3ceb22218 EFLAGS: 00000246 ORIG_RAX: 000000000000001c
RAX: ffffffffffffffda RBX: 00007fa3cec12318 RCX: 00007fa3ceb8b299
RDX: 0000000000000009 RSI: 0000000000600000 RDI: 0000400000000000
RBP: 00007fa3cec12310 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fa3cebdf074
R13: 0000400000000000 R14: 0000400000006000 R15: 0000400000001000
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:filemap_unaccount_folio+0x73d/0x7d0 mm/filemap.c:155
Code: de c7 ff 48 89 df 48 c7 c6 40 d3 13 8c e8 0b 04 12 00 90 0f 0b e8 b3 de c7 ff 48 89 df 48 c7 c6 20 d2 13 8c e8 f4 03 12 00 90 <0f> 0b e8 9c de c7 ff 48 89 df 48 c7 c6 40 d3 13 8c e8 dd 03 12 00
RSP: 0018:ffffc900040ef010 EFLAGS: 00010046
RAX: ac344b46b1f95900 RBX: ffffea0001da0000 RCX: ffffc900040eec03
RDX: 0000000000000004 RSI: ffffffff8c0ab280 RDI: ffffffff8c60da20
RBP: 0000000000000000 R08: ffffffff901bcf77 R09: 1ffffffff20379ee
R10: dffffc0000000000 R11: fffffbfff20379ef R12: dffffc0000000000
R13: 1ffffd40003b4001 R14: ffff88807c9ecb78 R15: ffffea0001da0008
FS:  00007fa3ceb226c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000400000021000 CR3: 00000000290ea000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400