BUG: Bad page state in process syz.0.0  pfn:56801
page does not match folio
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffffffffffffffff pfn:0x56801
ksm flags: 0x4fff00000000000(node=1|zone=1|lastcpupid=0x7ff)
raw: 04fff00000000000 ffffea00015a0000 00000000ffffffff ffffffffffffffff
raw: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: nonzero pincount
page_owner tracks the page as allocated
page last allocated via order 9, migratetype Movable, gfp_mask 0x153c4a(GFP_NOFS|__GFP_HIGHMEM|__GFP_MOVABLE|__GFP_WRITE|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 5314, tgid 5313 (syz.0.0), ts 78852045153, free_ts 0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1d8/0x230 mm/page_alloc.c:1714
 prep_new_page mm/page_alloc.c:1722 [inline]
 get_page_from_freelist+0x21ce/0x22b0 mm/page_alloc.c:3684
 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:4966
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2301
 alloc_frozen_pages_noprof mm/mempolicy.c:2372 [inline]
 alloc_pages_noprof+0xa9/0x190 mm/mempolicy.c:2392
 folio_alloc_noprof+0x1e/0x30 mm/mempolicy.c:2402
 filemap_alloc_folio_noprof+0xdf/0x470 mm/filemap.c:1007
 __filemap_get_folio+0x3f2/0xaf0 mm/filemap.c:1969
 iomap_get_folio fs/iomap/buffered-io.c:606 [inline]
 __iomap_get_folio fs/iomap/buffered-io.c:752 [inline]
 iomap_write_begin+0x4a3/0x18f0 fs/iomap/buffered-io.c:795
 iomap_write_iter fs/iomap/buffered-io.c:952 [inline]
 iomap_file_buffered_write+0x3fe/0xd20 fs/iomap/buffered-io.c:1033
 xfs_file_buffered_write+0x201/0x890 fs/xfs/xfs_file.c:910
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0x548/0xa90 fs/read_write.c:684
 ksys_write+0x145/0x250 fs/read_write.c:736
 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
page_owner free stack trace missing
Modules linked in:
CPU: 0 UID: 0 PID: 5315 Comm: syz.0.0 Not tainted 6.15.0-rc7-syzkaller #0 PREEMPT(full) 
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 bad_page+0x15e/0x1a0 mm/page_alloc.c:506
 free_tail_page_prepare+0x2c3/0x4f0 mm/page_alloc.c:-1
 free_pages_prepare mm/page_alloc.c:1234 [inline]
 free_unref_folios+0x721/0x14a0 mm/page_alloc.c:2778
 folios_put_refs+0x559/0x640 mm/swap.c:992
 folio_batch_release include/linux/pagevec.h:101 [inline]
 truncate_inode_pages_range+0x346/0xda0 mm/truncate.c:379
 truncate_inode_pages mm/truncate.c:456 [inline]
 truncate_pagecache mm/truncate.c:765 [inline]
 truncate_setsize+0xcf/0xf0 mm/truncate.c:790
 xfs_setattr_size+0x5d9/0xf10 fs/xfs/xfs_iops.c:961
 xfs_vn_setattr+0x258/0x300 fs/xfs/xfs_iops.c:1106
 notify_change+0xb36/0xe40 fs/attr.c:552
 do_truncate+0x19a/0x220 fs/open.c:65
 handle_truncate fs/namei.c:3501 [inline]
 do_open fs/namei.c:3884 [inline]
 path_openat+0x306c/0x3830 fs/namei.c:4039
 do_filp_open+0x1fa/0x410 fs/namei.c:4066
 do_sys_openat2+0x121/0x1c0 fs/open.c:1429
 do_sys_open fs/open.c:1444 [inline]
 __do_sys_creat fs/open.c:1522 [inline]
 __se_sys_creat fs/open.c:1516 [inline]
 __x64_sys_creat+0x8f/0xc0 fs/open.c:1516
 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: 0033:0x7f7aa618e969
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:00007f7aa701f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007f7aa63b6080 RCX: 00007f7aa618e969
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000200000000040
RBP: 00007f7aa6210ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f7aa63b6080 R15: 00007ffde34795a8
 </TASK>
BUG: Bad page state in process syz.0.0  pfn:56800
page: refcount:-1 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x56800
head: order:0 mapcount:0 entire_mapcount:1 nr_pages_mapped:0 pincount:0
flags: 0x4fff0000000004c(referenced|uptodate|head|node=1|zone=1|lastcpupid=0x7ff)
raw: 04fff0000000004c dead000000000100 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 ffffffffffffffff 0000000000000000
head: 04fff0000000004c dead000000000100 dead000000000122 0000000000000000
head: 0000000000000000 0000000000000000 ffffffffffffffff 0000000000000000
head: 04fff00000000000 0000000000000000 00000000ffffffff 0000000000000000
head: ffffffffffffffff 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: nonzero _refcount
page_owner tracks the page as allocated
page last allocated via order 9, migratetype Movable, gfp_mask 0x153c4a(GFP_NOFS|__GFP_HIGHMEM|__GFP_MOVABLE|__GFP_WRITE|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 5314, tgid 5313 (syz.0.0), ts 78852045153, free_ts 0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1d8/0x230 mm/page_alloc.c:1714
 prep_new_page mm/page_alloc.c:1722 [inline]
 get_page_from_freelist+0x21ce/0x22b0 mm/page_alloc.c:3684
 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:4966
 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2301
 alloc_frozen_pages_noprof mm/mempolicy.c:2372 [inline]
 alloc_pages_noprof+0xa9/0x190 mm/mempolicy.c:2392
 folio_alloc_noprof+0x1e/0x30 mm/mempolicy.c:2402
 filemap_alloc_folio_noprof+0xdf/0x470 mm/filemap.c:1007
 __filemap_get_folio+0x3f2/0xaf0 mm/filemap.c:1969
 iomap_get_folio fs/iomap/buffered-io.c:606 [inline]
 __iomap_get_folio fs/iomap/buffered-io.c:752 [inline]
 iomap_write_begin+0x4a3/0x18f0 fs/iomap/buffered-io.c:795
 iomap_write_iter fs/iomap/buffered-io.c:952 [inline]
 iomap_file_buffered_write+0x3fe/0xd20 fs/iomap/buffered-io.c:1033
 xfs_file_buffered_write+0x201/0x890 fs/xfs/xfs_file.c:910
 new_sync_write fs/read_write.c:591 [inline]
 vfs_write+0x548/0xa90 fs/read_write.c:684
 ksys_write+0x145/0x250 fs/read_write.c:736
 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
page_owner free stack trace missing
Modules linked in:
CPU: 0 UID: 0 PID: 5315 Comm: syz.0.0 Tainted: G    B               6.15.0-rc7-syzkaller #0 PREEMPT(full) 
Tainted: [B]=BAD_PAGE
Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014
Call Trace:
 <TASK>
 dump_stack_lvl+0x189/0x250 lib/dump_stack.c:120
 bad_page+0x15e/0x1a0 mm/page_alloc.c:506
 free_page_is_bad mm/page_alloc.c:949 [inline]
 free_pages_prepare mm/page_alloc.c:1250 [inline]
 free_unref_folios+0xd8f/0x14a0 mm/page_alloc.c:2778
 folios_put_refs+0x559/0x640 mm/swap.c:992
 folio_batch_release include/linux/pagevec.h:101 [inline]
 truncate_inode_pages_range+0x346/0xda0 mm/truncate.c:379
 truncate_inode_pages mm/truncate.c:456 [inline]
 truncate_pagecache mm/truncate.c:765 [inline]
 truncate_setsize+0xcf/0xf0 mm/truncate.c:790
 xfs_setattr_size+0x5d9/0xf10 fs/xfs/xfs_iops.c:961
 xfs_vn_setattr+0x258/0x300 fs/xfs/xfs_iops.c:1106
 notify_change+0xb36/0xe40 fs/attr.c:552
 do_truncate+0x19a/0x220 fs/open.c:65
 handle_truncate fs/namei.c:3501 [inline]
 do_open fs/namei.c:3884 [inline]
 path_openat+0x306c/0x3830 fs/namei.c:4039
 do_filp_open+0x1fa/0x410 fs/namei.c:4066
 do_sys_openat2+0x121/0x1c0 fs/open.c:1429
 do_sys_open fs/open.c:1444 [inline]
 __do_sys_creat fs/open.c:1522 [inline]
 __se_sys_creat fs/open.c:1516 [inline]
 __x64_sys_creat+0x8f/0xc0 fs/open.c:1516
 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: 0033:0x7f7aa618e969
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:00007f7aa701f038 EFLAGS: 00000246 ORIG_RAX: 0000000000000055
RAX: ffffffffffffffda RBX: 00007f7aa63b6080 RCX: 00007f7aa618e969
RDX: 0000000000000000 RSI: 0000000000000008 RDI: 0000200000000040
RBP: 00007f7aa6210ab1 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f7aa63b6080 R15: 00007ffde34795a8
 </TASK>