BUG: Bad page state in process syz.1.212 pfn:53801
page does not match folio
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0xffffffffffffffff pfn:0x53801
ksm flags: 0xfff00000000000(node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000000000 ffffea00014e0000 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 Unmovable, gfp_mask 0x152c40(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 7004, tgid 7004 (syz.0.159), ts 90173562448, free_ts 90172280069
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x181/0x1b0 mm/page_alloc.c:1718
prep_new_page mm/page_alloc.c:1726 [inline]
get_page_from_freelist+0x135c/0x3920 mm/page_alloc.c:3688
__alloc_frozen_pages_noprof+0x263/0x23a0 mm/page_alloc.c:4970
alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2301
alloc_pages_noprof mm/mempolicy.c:2392 [inline]
folio_alloc_noprof+0x20/0x2d0 mm/mempolicy.c:2402
filemap_alloc_folio_noprof+0x3a1/0x470 mm/filemap.c:1007
ractl_alloc_folio mm/readahead.c:186 [inline]
ra_alloc_folio mm/readahead.c:441 [inline]
page_cache_ra_order+0x4c0/0xd00 mm/readahead.c:509
do_sync_mmap_readahead mm/filemap.c:3225 [inline]
filemap_fault+0x1a5e/0x2740 mm/filemap.c:3403
__do_fault+0x10a/0x490 mm/memory.c:5098
do_shared_fault mm/memory.c:5582 [inline]
do_fault mm/memory.c:5656 [inline]
do_pte_missing+0x1a6/0x3fb0 mm/memory.c:4160
handle_pte_fault mm/memory.c:5997 [inline]
__handle_mm_fault+0x103d/0x2a40 mm/memory.c:6140
handle_mm_fault+0x3fe/0xad0 mm/memory.c:6309
do_user_addr_fault+0x60c/0x1370 arch/x86/mm/fault.c:1337
handle_page_fault arch/x86/mm/fault.c:1480 [inline]
exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1538
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
page last free pid 6992 tgid 6989 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1262 [inline]
free_unref_folios+0x999/0x1630 mm/page_alloc.c:2782
folios_put_refs+0x56f/0x740 mm/swap.c:992
folio_batch_release include/linux/pagevec.h:101 [inline]
truncate_inode_pages_range+0x311/0xe30 mm/truncate.c:379
kill_bdev block/bdev.c:91 [inline]
blkdev_flush_mapping+0xfb/0x290 block/bdev.c:712
blkdev_put_whole+0xc4/0xf0 block/bdev.c:719
bdev_release+0x47e/0x6d0 block/bdev.c:1144
blkdev_release+0x15/0x20 block/fops.c:660
__fput+0x3ff/0xb70 fs/file_table.c:465
task_work_run+0x14d/0x240 kernel/task_work.c:227
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xafb/0x2c30 kernel/exit.c:953
do_group_exit+0xd3/0x2a0 kernel/exit.c:1102
get_signal+0x2673/0x26d0 kernel/signal.c:3034
arch_do_signal_or_restart+0x8f/0x7d0 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:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x260 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 2 UID: 0 PID: 7130 Comm: syz.1.212 Not tainted 6.15.0-rc5-syzkaller-gcd802e7e5f1e #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:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
bad_page+0xb3/0x1f0 mm/page_alloc.c:505
free_tail_page_prepare+0x44f/0x5b0 mm/page_alloc.c:1000
free_pages_prepare mm/page_alloc.c:1238 [inline]
__free_frozen_pages+0x96a/0xff0 mm/page_alloc.c:2725
__folio_put+0x329/0x450 mm/swap.c:112
folio_put_refs include/linux/mm.h:1600 [inline]
filemap_free_folio+0x132/0x170 mm/filemap.c:235
delete_from_page_cache_batch+0x741/0x9b0 mm/filemap.c:339
truncate_inode_pages_range+0x279/0xe30 mm/truncate.c:376
kill_bdev block/bdev.c:91 [inline]
blkdev_flush_mapping+0xfb/0x290 block/bdev.c:712
blkdev_put_whole+0xc4/0xf0 block/bdev.c:719
bdev_release+0x47e/0x6d0 block/bdev.c:1144
blkdev_release+0x15/0x20 block/fops.c:660
__fput+0x3ff/0xb70 fs/file_table.c:465
task_work_run+0x14d/0x240 kernel/task_work.c:227
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xafb/0x2c30 kernel/exit.c:953
do_group_exit+0xd3/0x2a0 kernel/exit.c:1102
get_signal+0x2673/0x26d0 kernel/signal.c:3034
arch_do_signal_or_restart+0x8f/0x7d0 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:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x260 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb80198e969
Code: Unable to access opcode bytes at 0x7fb80198e93f.
RSP: 002b:00007fb8028760e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007fb801bb5fa8 RCX: 00007fb80198e969
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fb801bb5fac
RBP: 00007fb801bb5fa0 R08: 00007fb802877000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 00007fb801bb5fac
R13: 0000000000000000 R14: 00007ffc0c84d2e0 R15: 00007ffc0c84d3c8
BUG: Bad page state in process syz.1.212 pfn:53800
page: refcount:0 mapcount:0 mapping:0000000000000000 index:0x0 pfn:0x53800
head: order:0 mapcount:0 entire_mapcount:1 nr_pages_mapped:0 pincount:0
flags: 0xfff1800000024d(locked|referenced|uptodate|workingset|head|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff1800000024d dead000000000100 dead000000000122 0000000000000000
raw: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
head: 00fff1800000024d dead000000000100 dead000000000122 0000000000000000
head: 0000000000000000 0000000000000000 00000000ffffffff 0000000000000000
head: 00fff00000000000 0000000000000000 00000000ffffffff 0000000000000000
head: ffffffffffffffff 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 Unmovable, gfp_mask 0x152c40(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 7004, tgid 7004 (syz.0.159), ts 90173562448, free_ts 90172280069
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x181/0x1b0 mm/page_alloc.c:1718
prep_new_page mm/page_alloc.c:1726 [inline]
get_page_from_freelist+0x135c/0x3920 mm/page_alloc.c:3688
__alloc_frozen_pages_noprof+0x263/0x23a0 mm/page_alloc.c:4970
alloc_pages_mpol+0x1fb/0x550 mm/mempolicy.c:2301
alloc_pages_noprof mm/mempolicy.c:2392 [inline]
folio_alloc_noprof+0x20/0x2d0 mm/mempolicy.c:2402
filemap_alloc_folio_noprof+0x3a1/0x470 mm/filemap.c:1007
ractl_alloc_folio mm/readahead.c:186 [inline]
ra_alloc_folio mm/readahead.c:441 [inline]
page_cache_ra_order+0x4c0/0xd00 mm/readahead.c:509
do_sync_mmap_readahead mm/filemap.c:3225 [inline]
filemap_fault+0x1a5e/0x2740 mm/filemap.c:3403
__do_fault+0x10a/0x490 mm/memory.c:5098
do_shared_fault mm/memory.c:5582 [inline]
do_fault mm/memory.c:5656 [inline]
do_pte_missing+0x1a6/0x3fb0 mm/memory.c:4160
handle_pte_fault mm/memory.c:5997 [inline]
__handle_mm_fault+0x103d/0x2a40 mm/memory.c:6140
handle_mm_fault+0x3fe/0xad0 mm/memory.c:6309
do_user_addr_fault+0x60c/0x1370 arch/x86/mm/fault.c:1337
handle_page_fault arch/x86/mm/fault.c:1480 [inline]
exc_page_fault+0x5c/0xc0 arch/x86/mm/fault.c:1538
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
page last free pid 6992 tgid 6989 stack trace:
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1262 [inline]
free_unref_folios+0x999/0x1630 mm/page_alloc.c:2782
folios_put_refs+0x56f/0x740 mm/swap.c:992
folio_batch_release include/linux/pagevec.h:101 [inline]
truncate_inode_pages_range+0x311/0xe30 mm/truncate.c:379
kill_bdev block/bdev.c:91 [inline]
blkdev_flush_mapping+0xfb/0x290 block/bdev.c:712
blkdev_put_whole+0xc4/0xf0 block/bdev.c:719
bdev_release+0x47e/0x6d0 block/bdev.c:1144
blkdev_release+0x15/0x20 block/fops.c:660
__fput+0x3ff/0xb70 fs/file_table.c:465
task_work_run+0x14d/0x240 kernel/task_work.c:227
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xafb/0x2c30 kernel/exit.c:953
do_group_exit+0xd3/0x2a0 kernel/exit.c:1102
get_signal+0x2673/0x26d0 kernel/signal.c:3034
arch_do_signal_or_restart+0x8f/0x7d0 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:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x260 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
Modules linked in:
CPU: 2 UID: 0 PID: 7130 Comm: syz.1.212 Tainted: G B 6.15.0-rc5-syzkaller-gcd802e7e5f1e #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:
__dump_stack lib/dump_stack.c:94 [inline]
dump_stack_lvl+0x16c/0x1f0 lib/dump_stack.c:120
bad_page+0xb3/0x1f0 mm/page_alloc.c:505
free_page_is_bad_report mm/page_alloc.c:938 [inline]
free_page_is_bad mm/page_alloc.c:948 [inline]
free_pages_prepare mm/page_alloc.c:1254 [inline]
__free_frozen_pages+0x76e/0xff0 mm/page_alloc.c:2725
__folio_put+0x329/0x450 mm/swap.c:112
folio_put_refs include/linux/mm.h:1600 [inline]
filemap_free_folio+0x132/0x170 mm/filemap.c:235
delete_from_page_cache_batch+0x741/0x9b0 mm/filemap.c:339
truncate_inode_pages_range+0x279/0xe30 mm/truncate.c:376
kill_bdev block/bdev.c:91 [inline]
blkdev_flush_mapping+0xfb/0x290 block/bdev.c:712
blkdev_put_whole+0xc4/0xf0 block/bdev.c:719
bdev_release+0x47e/0x6d0 block/bdev.c:1144
blkdev_release+0x15/0x20 block/fops.c:660
__fput+0x3ff/0xb70 fs/file_table.c:465
task_work_run+0x14d/0x240 kernel/task_work.c:227
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xafb/0x2c30 kernel/exit.c:953
do_group_exit+0xd3/0x2a0 kernel/exit.c:1102
get_signal+0x2673/0x26d0 kernel/signal.c:3034
arch_do_signal_or_restart+0x8f/0x7d0 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:329 [inline]
__syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
syscall_exit_to_user_mode+0x150/0x2a0 kernel/entry/common.c:218
do_syscall_64+0xda/0x260 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fb80198e969
Code: Unable to access opcode bytes at 0x7fb80198e93f.
RSP: 002b:00007fb8028760e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000001 RBX: 00007fb801bb5fa8 RCX: 00007fb80198e969
RDX: 00000000000f4240 RSI: 0000000000000081 RDI: 00007fb801bb5fac
RBP: 00007fb801bb5fa0 R08: 00007fb802877000 R09: 0000000000000000
R10: ffffffffffffffff R11: 0000000000000246 R12: 00007fb801bb5fac
R13: 0000000000000000 R14: 00007ffc0c84d2e0 R15: 00007ffc0c84d3c8