BUG: Bad page state in process syz.0.0  pfn:51c01
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x1 pfn:0x51c01
head: order:0 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:-1
flags: 0x4fff0000000004d(locked|referenced|uptodate|head|node=1|zone=1|lastcpupid=0x7ff)
raw: 04fff00000000000 ffffea0001470001 ffffffffffffffff ffffffff00000000
raw: 0000000000000200 0000000000000000 00000000ffffffff 0000000000000000
head: 04fff0000000004d dead000000000100 dead000000000122 0000000000000000
head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
head: 04fff00000000000 ffffea0001470001 ffffffffffffffff ffffffff00000000
head: 0000000000000200 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_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL|__GFP_MOVABLE|__GFP_WRITE), pid 5359, tgid 5358 (syz.0.0), ts 389316214944, free_ts 0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
 prep_new_page mm/page_alloc.c:1564 [inline]
 get_page_from_freelist+0x3649/0x3790 mm/page_alloc.c:3474
 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265
 alloc_pages_noprof mm/mempolicy.c:2345 [inline]
 folio_alloc_noprof+0x128/0x180 mm/mempolicy.c:2352
 filemap_alloc_folio_noprof+0xdf/0x500 mm/filemap.c:1010
 __filemap_get_folio+0x446/0xbd0 mm/filemap.c:1952
 iomap_get_folio fs/iomap/buffered-io.c:608 [inline]
 __iomap_get_folio fs/iomap/buffered-io.c:754 [inline]
 iomap_write_begin+0x52a/0x16f0 fs/iomap/buffered-io.c:797
 iomap_write_iter fs/iomap/buffered-io.c:955 [inline]
 iomap_file_buffered_write+0x68f/0xe50 fs/iomap/buffered-io.c:1039
 xfs_file_buffered_write+0x2de/0xac0 fs/xfs/xfs_file.c:792
 new_sync_write fs/read_write.c:590 [inline]
 vfs_write+0xaeb/0xd30 fs/read_write.c:683
 ksys_write+0x183/0x2b0 fs/read_write.c:736
 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_owner free stack trace missing
Modules linked in:
CPU: 0 UID: 0 PID: 5360 Comm: syz.0.0 Not tainted 6.12.0-syzkaller #0
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 lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 bad_page+0x176/0x1d0 mm/page_alloc.c:501
 free_tail_page_prepare+0x237/0x460
 free_pages_prepare mm/page_alloc.c:1103 [inline]
 free_unref_page+0x805/0x1140 mm/page_alloc.c:2657
 __folio_put+0x2c7/0x440 mm/swap.c:112
 delete_from_page_cache_batch+0xaed/0xc70 mm/filemap.c:351
 truncate_inode_pages_range+0x364/0xfc0 mm/truncate.c:343
 truncate_inode_pages mm/truncate.c:423 [inline]
 truncate_pagecache mm/truncate.c:727 [inline]
 truncate_setsize+0xcf/0xf0 mm/truncate.c:752
 xfs_setattr_size+0x3a0/0xd80 fs/xfs/xfs_iops.c:900
 xfs_vn_setattr+0x25d/0x320 fs/xfs/xfs_iops.c:1045
 notify_change+0xbca/0xe90 fs/attr.c:503
 do_truncate+0x220/0x310 fs/open.c:65
 handle_truncate fs/namei.c:3395 [inline]
 do_open fs/namei.c:3778 [inline]
 path_openat+0x2e1e/0x3590 fs/namei.c:3933
 do_filp_open+0x235/0x490 fs/namei.c:3960
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
 do_sys_open fs/open.c:1430 [inline]
 __do_sys_open fs/open.c:1438 [inline]
 __se_sys_open fs/open.c:1434 [inline]
 __x64_sys_open+0x225/0x270 fs/open.c:1434
 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: 0033:0x7f94bfd7e719
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:00007f94c0b49038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f94bff36058 RCX: 00007f94bfd7e719
RDX: 0000000000000000 RSI: 000000000014927e RDI: 0000000020000180
RBP: 00007f94bfdf175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f94bff36058 R15: 00007ffc54c49cd8
 </TASK>
BUG: Bad page state in process syz.0.0  pfn:51c00
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x51c00
head: order:0 mapcount:0 entire_mapcount:0 nr_pages_mapped:0 pincount:0
flags: 0x4fff0000000004d(locked|referenced|uptodate|head|node=1|zone=1|lastcpupid=0x7ff)
raw: 04fff0000000004d dead000000000100 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
head: 04fff0000000004d dead000000000100 dead000000000122 0000000000000000
head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
head: 04fff00000000000 0000000000000000 ffffffffffffffff 0000000000000000
head: 0000000000000200 0000000000000000 00000000ffffffff 0000000000000000
page dumped because: PAGE_FLAGS_CHECK_AT_FREE flag(s) set
page_owner tracks the page as allocated
page last allocated via order 9, migratetype Movable, gfp_mask 0x153c4a(GFP_NOFS|__GFP_HIGHMEM|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL|__GFP_MOVABLE|__GFP_WRITE), pid 5359, tgid 5358 (syz.0.0), ts 389316214944, free_ts 0
 set_page_owner include/linux/page_owner.h:32 [inline]
 post_alloc_hook+0x1f3/0x230 mm/page_alloc.c:1556
 prep_new_page mm/page_alloc.c:1564 [inline]
 get_page_from_freelist+0x3649/0x3790 mm/page_alloc.c:3474
 __alloc_pages_noprof+0x292/0x710 mm/page_alloc.c:4751
 alloc_pages_mpol_noprof+0x3e8/0x680 mm/mempolicy.c:2265
 alloc_pages_noprof mm/mempolicy.c:2345 [inline]
 folio_alloc_noprof+0x128/0x180 mm/mempolicy.c:2352
 filemap_alloc_folio_noprof+0xdf/0x500 mm/filemap.c:1010
 __filemap_get_folio+0x446/0xbd0 mm/filemap.c:1952
 iomap_get_folio fs/iomap/buffered-io.c:608 [inline]
 __iomap_get_folio fs/iomap/buffered-io.c:754 [inline]
 iomap_write_begin+0x52a/0x16f0 fs/iomap/buffered-io.c:797
 iomap_write_iter fs/iomap/buffered-io.c:955 [inline]
 iomap_file_buffered_write+0x68f/0xe50 fs/iomap/buffered-io.c:1039
 xfs_file_buffered_write+0x2de/0xac0 fs/xfs/xfs_file.c:792
 new_sync_write fs/read_write.c:590 [inline]
 vfs_write+0xaeb/0xd30 fs/read_write.c:683
 ksys_write+0x183/0x2b0 fs/read_write.c:736
 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_owner free stack trace missing
Modules linked in:
CPU: 0 UID: 0 PID: 5360 Comm: syz.0.0 Tainted: G    B              6.12.0-syzkaller #0
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 lib/dump_stack.c:94 [inline]
 dump_stack_lvl+0x241/0x360 lib/dump_stack.c:120
 bad_page+0x176/0x1d0 mm/page_alloc.c:501
 free_page_is_bad mm/page_alloc.c:923 [inline]
 free_pages_prepare mm/page_alloc.c:1119 [inline]
 free_unref_page+0x105e/0x1140 mm/page_alloc.c:2657
 __folio_put+0x2c7/0x440 mm/swap.c:112
 delete_from_page_cache_batch+0xaed/0xc70 mm/filemap.c:351
 truncate_inode_pages_range+0x364/0xfc0 mm/truncate.c:343
 truncate_inode_pages mm/truncate.c:423 [inline]
 truncate_pagecache mm/truncate.c:727 [inline]
 truncate_setsize+0xcf/0xf0 mm/truncate.c:752
 xfs_setattr_size+0x3a0/0xd80 fs/xfs/xfs_iops.c:900
 xfs_vn_setattr+0x25d/0x320 fs/xfs/xfs_iops.c:1045
 notify_change+0xbca/0xe90 fs/attr.c:503
 do_truncate+0x220/0x310 fs/open.c:65
 handle_truncate fs/namei.c:3395 [inline]
 do_open fs/namei.c:3778 [inline]
 path_openat+0x2e1e/0x3590 fs/namei.c:3933
 do_filp_open+0x235/0x490 fs/namei.c:3960
 do_sys_openat2+0x13e/0x1d0 fs/open.c:1415
 do_sys_open fs/open.c:1430 [inline]
 __do_sys_open fs/open.c:1438 [inline]
 __se_sys_open fs/open.c:1434 [inline]
 __x64_sys_open+0x225/0x270 fs/open.c:1434
 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: 0033:0x7f94bfd7e719
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:00007f94c0b49038 EFLAGS: 00000246 ORIG_RAX: 0000000000000002
RAX: ffffffffffffffda RBX: 00007f94bff36058 RCX: 00007f94bfd7e719
RDX: 0000000000000000 RSI: 000000000014927e RDI: 0000000020000180
RBP: 00007f94bfdf175e R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f94bff36058 R15: 00007ffc54c49cd8
 </TASK>