BUG: Bad page state in process syz-executor.0 pfn:223d6
page:ffffea000088f580 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x223d6
flags: 0xfff00000002004(uptodate|private|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000002004 ffffea0000872fc8 ffffc900031cfa00 0000000000000000
raw: 0000000000000004 ffff88802a7569b0 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 0, migratetype Unmovable, gfp_mask 0x100c40(GFP_NOFS|__GFP_HARDWALL), pid 4599, ts 76079258000, free_ts 76069680109
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x1b77/0x1c60 mm/page_alloc.c:4192
__alloc_pages+0x1e1/0x470 mm/page_alloc.c:5487
__page_cache_alloc+0xd2/0x3f0 mm/filemap.c:1022
do_read_cache_page+0x1da/0x1030 mm/filemap.c:3457
read_mapping_page include/linux/pagemap.h:515 [inline]
__get_metapage+0x35d/0x1060 fs/jfs/jfs_metapage.c:621
dbAllocCtl+0xd4/0x9b0 fs/jfs/jfs_dmap.c:1881
dbAllocAG+0x1e7/0xfe0 fs/jfs/jfs_dmap.c:1421
dbDiscardAG+0x2ca/0x8e0 fs/jfs/jfs_dmap.c:1676
jfs_ioc_trim+0x41e/0x680 fs/jfs/jfs_discard.c:106
jfs_ioctl+0x2a5/0x3a0 fs/jfs/ioctl.c:132
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1340 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x637/0x6c0 mm/page_alloc.c:3317
free_unref_page_list+0x122/0x7e0 mm/page_alloc.c:3433
release_pages+0x184b/0x1bb0 mm/swap.c:963
tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:240 [inline]
tlb_flush_mmu mm/mmu_gather.c:247 [inline]
tlb_finish_mmu+0x164/0x2e0 mm/mmu_gather.c:338
exit_mmap+0x3a6/0x5f0 mm/mmap.c:3218
__mmput+0x115/0x3b0 kernel/fork.c:1127
exit_mm+0x567/0x6c0 kernel/exit.c:550
do_exit+0x5a1/0x20a0 kernel/exit.c:870
do_group_exit+0x12e/0x300 kernel/exit.c:997
__do_sys_exit_group kernel/exit.c:1008 [inline]
__se_sys_exit_group kernel/exit.c:1006 [inline]
__x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1006
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
Modules linked in:
CPU: 0 PID: 4507 Comm: syz-executor.0 Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
bad_page+0x14b/0x170 mm/page_alloc.c:652
check_free_page mm/page_alloc.c:1209 [inline]
free_pages_prepare mm/page_alloc.c:1334 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x383/0x6c0 mm/page_alloc.c:3317
free_unref_page_list+0x122/0x7e0 mm/page_alloc.c:3433
release_pages+0x184b/0x1bb0 mm/swap.c:963
__pagevec_release+0x6d/0xe0 mm/swap.c:983
pagevec_release include/linux/pagevec.h:81 [inline]
truncate_inode_pages_range+0x2f3/0xef0 mm/truncate.c:329
dbUnmount+0x105/0x170 fs/jfs/jfs_dmap.c:264
jfs_umount+0x1fa/0x360 fs/jfs/jfs_umount.c:89
jfs_put_super+0x88/0x190 fs/jfs/super.c:194
generic_shutdown_super+0x130/0x300 fs/super.c:475
kill_block_super+0x7c/0xe0 fs/super.c:1427
deactivate_locked_super+0x93/0xf0 fs/super.c:335
cleanup_mnt+0x418/0x4d0 fs/namespace.c:1148
task_work_run+0x125/0x1a0 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fdd22d540d7
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fff5e18b168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fdd22d9e3b9 RCX: 00007fdd22d540d7
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fff5e18b220
RBP: 00007fff5e18b220 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff5e18c2e0
R13: 00007fdd22d9e3b9 R14: 0000000000012781 R15: 0000000000000003
BUG: Bad page state in process syz-executor.0 pfn:755de
page:ffffea0001d57780 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x755de
flags: 0xfff00000002006(referenced|uptodate|private|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000002006 ffffea0001e696c8 ffffc900031cfa00 0000000000000000
raw: 0000000000000004 ffff888079a5d9b0 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 0, migratetype Unmovable, gfp_mask 0x100c40(GFP_NOFS|__GFP_HARDWALL), pid 4659, ts 77093658998, free_ts 77091422540
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x1b77/0x1c60 mm/page_alloc.c:4192
__alloc_pages+0x1e1/0x470 mm/page_alloc.c:5487
__page_cache_alloc+0xd2/0x3f0 mm/filemap.c:1022
do_read_cache_page+0x1da/0x1030 mm/filemap.c:3457
read_mapping_page include/linux/pagemap.h:515 [inline]
__get_metapage+0x35d/0x1060 fs/jfs/jfs_metapage.c:621
dbAllocCtl+0xd4/0x9b0 fs/jfs/jfs_dmap.c:1881
dbAllocAG+0x1e7/0xfe0 fs/jfs/jfs_dmap.c:1421
dbDiscardAG+0x2ca/0x8e0 fs/jfs/jfs_dmap.c:1676
jfs_ioc_trim+0x41e/0x680 fs/jfs/jfs_discard.c:106
jfs_ioctl+0x2a5/0x3a0 fs/jfs/ioctl.c:132
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1340 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x637/0x6c0 mm/page_alloc.c:3317
free_unref_page+0x94/0x280 mm/page_alloc.c:3396
__vunmap+0x8ab/0xa40 mm/vmalloc.c:2628
free_work+0x56/0x80 mm/vmalloc.c:95
process_one_work+0x863/0x1000 kernel/workqueue.c:2310
worker_thread+0xaa8/0x12a0 kernel/workqueue.c:2457
kthread+0x436/0x520 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
Modules linked in:
CPU: 0 PID: 4507 Comm: syz-executor.0 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
bad_page+0x14b/0x170 mm/page_alloc.c:652
check_free_page mm/page_alloc.c:1209 [inline]
free_pages_prepare mm/page_alloc.c:1334 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x383/0x6c0 mm/page_alloc.c:3317
free_unref_page_list+0x122/0x7e0 mm/page_alloc.c:3433
release_pages+0x184b/0x1bb0 mm/swap.c:963
__pagevec_release+0x6d/0xe0 mm/swap.c:983
pagevec_release include/linux/pagevec.h:81 [inline]
truncate_inode_pages_range+0x2f3/0xef0 mm/truncate.c:329
dbUnmount+0x105/0x170 fs/jfs/jfs_dmap.c:264
jfs_umount+0x1fa/0x360 fs/jfs/jfs_umount.c:89
jfs_put_super+0x88/0x190 fs/jfs/super.c:194
generic_shutdown_super+0x130/0x300 fs/super.c:475
kill_block_super+0x7c/0xe0 fs/super.c:1427
deactivate_locked_super+0x93/0xf0 fs/super.c:335
cleanup_mnt+0x418/0x4d0 fs/namespace.c:1148
task_work_run+0x125/0x1a0 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fdd22d540d7
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fff5e18b168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fdd22d9e3b9 RCX: 00007fdd22d540d7
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fff5e18b220
RBP: 00007fff5e18b220 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff5e18c2e0
R13: 00007fdd22d9e3b9 R14: 0000000000012c29 R15: 0000000000000003
BUG: Bad page state in process syz-executor.0 pfn:7e89a
page:ffffea0001fa2680 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x7e89a
flags: 0xfff00000002006(referenced|uptodate|private|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000002006 ffffea00007887c8 ffffc900031cfa00 0000000000000000
raw: 0000000000000004 ffff88801dff04d8 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 0, migratetype Unmovable, gfp_mask 0x100c40(GFP_NOFS|__GFP_HARDWALL), pid 4737, ts 77999297691, free_ts 77997382211
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x1b77/0x1c60 mm/page_alloc.c:4192
__alloc_pages+0x1e1/0x470 mm/page_alloc.c:5487
__page_cache_alloc+0xd2/0x3f0 mm/filemap.c:1022
do_read_cache_page+0x1da/0x1030 mm/filemap.c:3457
read_mapping_page include/linux/pagemap.h:515 [inline]
__get_metapage+0x35d/0x1060 fs/jfs/jfs_metapage.c:621
dbAllocCtl+0xd4/0x9b0 fs/jfs/jfs_dmap.c:1881
dbAllocAG+0x1e7/0xfe0 fs/jfs/jfs_dmap.c:1421
dbDiscardAG+0x2ca/0x8e0 fs/jfs/jfs_dmap.c:1676
jfs_ioc_trim+0x41e/0x680 fs/jfs/jfs_discard.c:106
jfs_ioctl+0x2a5/0x3a0 fs/jfs/ioctl.c:132
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1340 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x637/0x6c0 mm/page_alloc.c:3317
free_unref_page+0x94/0x280 mm/page_alloc.c:3396
free_slab mm/slub.c:2020 [inline]
discard_slab mm/slub.c:2026 [inline]
__unfreeze_partials+0x1a5/0x200 mm/slub.c:2512
put_cpu_partial+0x12d/0x190 mm/slub.c:2592
qlist_free_all+0x35/0x90 mm/kasan/quarantine.c:176
kasan_quarantine_reduce+0x150/0x160 mm/kasan/quarantine.c:283
__kasan_slab_alloc+0x2f/0xd0 mm/kasan/common.c:444
kasan_slab_alloc include/linux/kasan.h:254 [inline]
slab_post_alloc_hook+0x4c/0x380 mm/slab.h:519
slab_alloc_node mm/slub.c:3225 [inline]
slab_alloc mm/slub.c:3233 [inline]
kmem_cache_alloc+0x100/0x290 mm/slub.c:3238
anon_vma_chain_alloc mm/rmap.c:138 [inline]
__anon_vma_prepare+0x66/0x410 mm/rmap.c:192
anon_vma_prepare include/linux/rmap.h:152 [inline]
do_anonymous_page mm/memory.c:3836 [inline]
handle_pte_fault mm/memory.c:4648 [inline]
__handle_mm_fault mm/memory.c:4785 [inline]
handle_mm_fault+0x3b83/0x43b0 mm/memory.c:4883
do_user_addr_fault+0x489/0xc80 arch/x86/mm/fault.c:1357
handle_page_fault arch/x86/mm/fault.c:1445 [inline]
exc_page_fault+0x60/0x100 arch/x86/mm/fault.c:1501
asm_exc_page_fault+0x22/0x30 arch/x86/include/asm/idtentry.h:606
copy_user_enhanced_fast_string+0xe/0x40 arch/x86/lib/copy_user_64.S:205
copy_user_generic arch/x86/include/asm/uaccess_64.h:37 [inline]
raw_copy_to_user arch/x86/include/asm/uaccess_64.h:58 [inline]
copyout lib/iov_iter.c:157 [inline]
copy_page_to_iter_iovec lib/iov_iter.c:228 [inline]
__copy_page_to_iter lib/iov_iter.c:861 [inline]
copy_page_to_iter+0x49e/0x910 lib/iov_iter.c:889
Modules linked in:
CPU: 1 PID: 4507 Comm: syz-executor.0 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
bad_page+0x14b/0x170 mm/page_alloc.c:652
check_free_page mm/page_alloc.c:1209 [inline]
free_pages_prepare mm/page_alloc.c:1334 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x383/0x6c0 mm/page_alloc.c:3317
free_unref_page_list+0x122/0x7e0 mm/page_alloc.c:3433
release_pages+0x184b/0x1bb0 mm/swap.c:963
__pagevec_release+0x6d/0xe0 mm/swap.c:983
pagevec_release include/linux/pagevec.h:81 [inline]
truncate_inode_pages_range+0x2f3/0xef0 mm/truncate.c:329
dbUnmount+0x105/0x170 fs/jfs/jfs_dmap.c:264
jfs_umount+0x1fa/0x360 fs/jfs/jfs_umount.c:89
jfs_put_super+0x88/0x190 fs/jfs/super.c:194
generic_shutdown_super+0x130/0x300 fs/super.c:475
kill_block_super+0x7c/0xe0 fs/super.c:1427
deactivate_locked_super+0x93/0xf0 fs/super.c:335
cleanup_mnt+0x418/0x4d0 fs/namespace.c:1148
task_work_run+0x125/0x1a0 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fdd22d540d7
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fff5e18b168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fdd22d9e3b9 RCX: 00007fdd22d540d7
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fff5e18b220
RBP: 00007fff5e18b220 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff5e18c2e0
R13: 00007fdd22d9e3b9 R14: 0000000000012fbc R15: 0000000000000003
BUG: Bad page state in process syz-executor.0 pfn:71d0c
page:ffffea0001c74300 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x71d0c
flags: 0xfff00000002006(referenced|uptodate|private|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000002006 ffffea00008b8848 ffffc900031cfa00 0000000000000000
raw: 0000000000000004 ffff88807e3ba4d8 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 0, migratetype Unmovable, gfp_mask 0x100c40(GFP_NOFS|__GFP_HARDWALL), pid 4809, ts 78898983731, free_ts 78690881071
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x1b77/0x1c60 mm/page_alloc.c:4192
__alloc_pages+0x1e1/0x470 mm/page_alloc.c:5487
__page_cache_alloc+0xd2/0x3f0 mm/filemap.c:1022
do_read_cache_page+0x1da/0x1030 mm/filemap.c:3457
read_mapping_page include/linux/pagemap.h:515 [inline]
__get_metapage+0x35d/0x1060 fs/jfs/jfs_metapage.c:621
dbAllocCtl+0xd4/0x9b0 fs/jfs/jfs_dmap.c:1881
dbAllocAG+0x1e7/0xfe0 fs/jfs/jfs_dmap.c:1421
dbDiscardAG+0x2ca/0x8e0 fs/jfs/jfs_dmap.c:1676
jfs_ioc_trim+0x41e/0x680 fs/jfs/jfs_discard.c:106
jfs_ioctl+0x2a5/0x3a0 fs/jfs/ioctl.c:132
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1340 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x637/0x6c0 mm/page_alloc.c:3317
free_unref_page_list+0x122/0x7e0 mm/page_alloc.c:3433
release_pages+0x184b/0x1bb0 mm/swap.c:963
tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:240 [inline]
tlb_flush_mmu mm/mmu_gather.c:247 [inline]
tlb_finish_mmu+0x164/0x2e0 mm/mmu_gather.c:338
exit_mmap+0x3a6/0x5f0 mm/mmap.c:3218
__mmput+0x115/0x3b0 kernel/fork.c:1127
exit_mm+0x567/0x6c0 kernel/exit.c:550
do_exit+0x5a1/0x20a0 kernel/exit.c:870
do_group_exit+0x12e/0x300 kernel/exit.c:997
__do_sys_exit_group kernel/exit.c:1008 [inline]
__se_sys_exit_group kernel/exit.c:1006 [inline]
__x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1006
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
Modules linked in:
CPU: 0 PID: 4507 Comm: syz-executor.0 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
bad_page+0x14b/0x170 mm/page_alloc.c:652
check_free_page mm/page_alloc.c:1209 [inline]
free_pages_prepare mm/page_alloc.c:1334 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x383/0x6c0 mm/page_alloc.c:3317
free_unref_page_list+0x122/0x7e0 mm/page_alloc.c:3433
release_pages+0x184b/0x1bb0 mm/swap.c:963
__pagevec_release+0x6d/0xe0 mm/swap.c:983
pagevec_release include/linux/pagevec.h:81 [inline]
truncate_inode_pages_range+0x2f3/0xef0 mm/truncate.c:329
dbUnmount+0x105/0x170 fs/jfs/jfs_dmap.c:264
jfs_umount+0x1fa/0x360 fs/jfs/jfs_umount.c:89
jfs_put_super+0x88/0x190 fs/jfs/super.c:194
generic_shutdown_super+0x130/0x300 fs/super.c:475
kill_block_super+0x7c/0xe0 fs/super.c:1427
deactivate_locked_super+0x93/0xf0 fs/super.c:335
cleanup_mnt+0x418/0x4d0 fs/namespace.c:1148
task_work_run+0x125/0x1a0 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fdd22d540d7
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fff5e18b168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fdd22d9e3b9 RCX: 00007fdd22d540d7
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fff5e18b220
RBP: 00007fff5e18b220 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff5e18c2e0
R13: 00007fdd22d9e3b9 R14: 0000000000013340 R15: 0000000000000003
BUG: Bad page state in process syz-executor.0 pfn:73ea9
page:ffffea0001cfaa40 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x73ea9
flags: 0xfff00000002006(referenced|uptodate|private|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000002006 ffffea000093a908 ffffc900031cfa00 0000000000000000
raw: 0000000000000004 ffff88806697b000 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 0, migratetype Unmovable, gfp_mask 0x100c40(GFP_NOFS|__GFP_HARDWALL), pid 4856, ts 79780273936, free_ts 79760417593
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x1b77/0x1c60 mm/page_alloc.c:4192
__alloc_pages+0x1e1/0x470 mm/page_alloc.c:5487
__page_cache_alloc+0xd2/0x3f0 mm/filemap.c:1022
do_read_cache_page+0x1da/0x1030 mm/filemap.c:3457
read_mapping_page include/linux/pagemap.h:515 [inline]
__get_metapage+0x35d/0x1060 fs/jfs/jfs_metapage.c:621
dbAllocCtl+0xd4/0x9b0 fs/jfs/jfs_dmap.c:1881
dbAllocAG+0x1e7/0xfe0 fs/jfs/jfs_dmap.c:1421
dbDiscardAG+0x2ca/0x8e0 fs/jfs/jfs_dmap.c:1676
jfs_ioc_trim+0x41e/0x680 fs/jfs/jfs_discard.c:106
jfs_ioctl+0x2a5/0x3a0 fs/jfs/ioctl.c:132
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1340 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x637/0x6c0 mm/page_alloc.c:3317
free_unref_page_list+0x122/0x7e0 mm/page_alloc.c:3433
release_pages+0x184b/0x1bb0 mm/swap.c:963
tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:240 [inline]
tlb_flush_mmu mm/mmu_gather.c:247 [inline]
tlb_finish_mmu+0x164/0x2e0 mm/mmu_gather.c:338
exit_mmap+0x3a6/0x5f0 mm/mmap.c:3218
__mmput+0x115/0x3b0 kernel/fork.c:1127
exit_mm+0x567/0x6c0 kernel/exit.c:550
do_exit+0x5a1/0x20a0 kernel/exit.c:870
do_group_exit+0x12e/0x300 kernel/exit.c:997
__do_sys_exit_group kernel/exit.c:1008 [inline]
__se_sys_exit_group kernel/exit.c:1006 [inline]
__x64_sys_exit_group+0x3b/0x40 kernel/exit.c:1006
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
Modules linked in:
CPU: 0 PID: 4507 Comm: syz-executor.0 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
bad_page+0x14b/0x170 mm/page_alloc.c:652
check_free_page mm/page_alloc.c:1209 [inline]
free_pages_prepare mm/page_alloc.c:1334 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x383/0x6c0 mm/page_alloc.c:3317
free_unref_page_list+0x122/0x7e0 mm/page_alloc.c:3433
release_pages+0x184b/0x1bb0 mm/swap.c:963
__pagevec_release+0x6d/0xe0 mm/swap.c:983
pagevec_release include/linux/pagevec.h:81 [inline]
truncate_inode_pages_range+0x2f3/0xef0 mm/truncate.c:329
dbUnmount+0x105/0x170 fs/jfs/jfs_dmap.c:264
jfs_umount+0x1fa/0x360 fs/jfs/jfs_umount.c:89
jfs_put_super+0x88/0x190 fs/jfs/super.c:194
generic_shutdown_super+0x130/0x300 fs/super.c:475
kill_block_super+0x7c/0xe0 fs/super.c:1427
deactivate_locked_super+0x93/0xf0 fs/super.c:335
cleanup_mnt+0x418/0x4d0 fs/namespace.c:1148
task_work_run+0x125/0x1a0 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fdd22d540d7
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fff5e18b168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fdd22d9e3b9 RCX: 00007fdd22d540d7
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fff5e18b220
RBP: 00007fff5e18b220 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff5e18c2e0
R13: 00007fdd22d9e3b9 R14: 0000000000013674 R15: 0000000000000003
BUG: Bad page state in process syz-executor.0 pfn:17bb9
page:ffffea00005eee40 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x17bb9
flags: 0xfff00000002004(uptodate|private|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000002004 ffffea0001cfddc8 ffffc900031cfa00 0000000000000000
raw: 0000000000000004 ffff88807e3bac98 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 0, migratetype Unmovable, gfp_mask 0x100c40(GFP_NOFS|__GFP_HARDWALL), pid 4878, ts 80542715293, free_ts 80494120920
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x1b77/0x1c60 mm/page_alloc.c:4192
__alloc_pages+0x1e1/0x470 mm/page_alloc.c:5487
__page_cache_alloc+0xd2/0x3f0 mm/filemap.c:1022
do_read_cache_page+0x1da/0x1030 mm/filemap.c:3457
read_mapping_page include/linux/pagemap.h:515 [inline]
__get_metapage+0x35d/0x1060 fs/jfs/jfs_metapage.c:621
dbAllocCtl+0xd4/0x9b0 fs/jfs/jfs_dmap.c:1881
dbAllocAG+0x1e7/0xfe0 fs/jfs/jfs_dmap.c:1421
dbDiscardAG+0x2ca/0x8e0 fs/jfs/jfs_dmap.c:1676
jfs_ioc_trim+0x41e/0x680 fs/jfs/jfs_discard.c:106
jfs_ioctl+0x2a5/0x3a0 fs/jfs/ioctl.c:132
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1340 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x637/0x6c0 mm/page_alloc.c:3317
free_unref_page_list+0x122/0x7e0 mm/page_alloc.c:3433
release_pages+0x184b/0x1bb0 mm/swap.c:963
tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:240 [inline]
tlb_flush_mmu mm/mmu_gather.c:247 [inline]
tlb_finish_mmu+0x164/0x2e0 mm/mmu_gather.c:338
unmap_region+0x315/0x360 mm/mmap.c:2669
__do_munmap+0x9d3/0xdc0 mm/mmap.c:2899
__vm_munmap+0x137/0x230 mm/mmap.c:2952
__do_sys_munmap mm/mmap.c:2978 [inline]
__se_sys_munmap mm/mmap.c:2974 [inline]
__x64_sys_munmap+0x67/0x70 mm/mmap.c:2974
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
Modules linked in:
CPU: 1 PID: 4507 Comm: syz-executor.0 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
bad_page+0x14b/0x170 mm/page_alloc.c:652
check_free_page mm/page_alloc.c:1209 [inline]
free_pages_prepare mm/page_alloc.c:1334 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x383/0x6c0 mm/page_alloc.c:3317
free_unref_page_list+0x122/0x7e0 mm/page_alloc.c:3433
release_pages+0x184b/0x1bb0 mm/swap.c:963
__pagevec_release+0x6d/0xe0 mm/swap.c:983
pagevec_release include/linux/pagevec.h:81 [inline]
truncate_inode_pages_range+0x2f3/0xef0 mm/truncate.c:329
dbUnmount+0x105/0x170 fs/jfs/jfs_dmap.c:264
jfs_umount+0x1fa/0x360 fs/jfs/jfs_umount.c:89
jfs_put_super+0x88/0x190 fs/jfs/super.c:194
generic_shutdown_super+0x130/0x300 fs/super.c:475
kill_block_super+0x7c/0xe0 fs/super.c:1427
deactivate_locked_super+0x93/0xf0 fs/super.c:335
cleanup_mnt+0x418/0x4d0 fs/namespace.c:1148
task_work_run+0x125/0x1a0 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fdd22d540d7
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fff5e18b168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fdd22d9e3b9 RCX: 00007fdd22d540d7
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fff5e18b220
RBP: 00007fff5e18b220 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff5e18c2e0
R13: 00007fdd22d9e3b9 R14: 00000000000139e7 R15: 0000000000000003
BUG: Bad page state in process syz-executor.0 pfn:2583e
page:ffffea0000960f80 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x2583e
flags: 0xfff00000002004(uptodate|private|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000002004 ffffea0001cfc8c8 ffffc900031cfa00 0000000000000000
raw: 0000000000000004 ffff888073db6000 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 0, migratetype Unmovable, gfp_mask 0x100c40(GFP_NOFS|__GFP_HARDWALL), pid 4880, ts 81308203442, free_ts 81247651452
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x1b77/0x1c60 mm/page_alloc.c:4192
__alloc_pages+0x1e1/0x470 mm/page_alloc.c:5487
__page_cache_alloc+0xd2/0x3f0 mm/filemap.c:1022
do_read_cache_page+0x1da/0x1030 mm/filemap.c:3457
read_mapping_page include/linux/pagemap.h:515 [inline]
__get_metapage+0x35d/0x1060 fs/jfs/jfs_metapage.c:621
dbAllocCtl+0xd4/0x9b0 fs/jfs/jfs_dmap.c:1881
dbAllocAG+0x1e7/0xfe0 fs/jfs/jfs_dmap.c:1421
dbDiscardAG+0x2ca/0x8e0 fs/jfs/jfs_dmap.c:1676
jfs_ioc_trim+0x41e/0x680 fs/jfs/jfs_discard.c:106
jfs_ioctl+0x2a5/0x3a0 fs/jfs/ioctl.c:132
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1340 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x637/0x6c0 mm/page_alloc.c:3317
free_unref_page_list+0x122/0x7e0 mm/page_alloc.c:3433
release_pages+0x184b/0x1bb0 mm/swap.c:963
tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:240 [inline]
tlb_flush_mmu mm/mmu_gather.c:247 [inline]
tlb_finish_mmu+0x164/0x2e0 mm/mmu_gather.c:338
unmap_region+0x315/0x360 mm/mmap.c:2669
__do_munmap+0x9d3/0xdc0 mm/mmap.c:2899
__vm_munmap+0x137/0x230 mm/mmap.c:2952
__do_sys_munmap mm/mmap.c:2978 [inline]
__se_sys_munmap mm/mmap.c:2974 [inline]
__x64_sys_munmap+0x67/0x70 mm/mmap.c:2974
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
Modules linked in:
CPU: 0 PID: 4507 Comm: syz-executor.0 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
bad_page+0x14b/0x170 mm/page_alloc.c:652
check_free_page mm/page_alloc.c:1209 [inline]
free_pages_prepare mm/page_alloc.c:1334 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x383/0x6c0 mm/page_alloc.c:3317
free_unref_page_list+0x122/0x7e0 mm/page_alloc.c:3433
release_pages+0x184b/0x1bb0 mm/swap.c:963
__pagevec_release+0x6d/0xe0 mm/swap.c:983
pagevec_release include/linux/pagevec.h:81 [inline]
truncate_inode_pages_range+0x2f3/0xef0 mm/truncate.c:329
dbUnmount+0x105/0x170 fs/jfs/jfs_dmap.c:264
jfs_umount+0x1fa/0x360 fs/jfs/jfs_umount.c:89
jfs_put_super+0x88/0x190 fs/jfs/super.c:194
generic_shutdown_super+0x130/0x300 fs/super.c:475
kill_block_super+0x7c/0xe0 fs/super.c:1427
deactivate_locked_super+0x93/0xf0 fs/super.c:335
cleanup_mnt+0x418/0x4d0 fs/namespace.c:1148
task_work_run+0x125/0x1a0 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fdd22d540d7
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fff5e18b168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fdd22d9e3b9 RCX: 00007fdd22d540d7
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fff5e18b220
RBP: 00007fff5e18b220 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff5e18c2e0
R13: 00007fdd22d9e3b9 R14: 0000000000013cd9 R15: 0000000000000003
BUG: Bad page state in process syz-executor.0 pfn:24583
page:ffffea00009160c0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x24583
flags: 0xfff00000002006(referenced|uptodate|private|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000002006 ffffea0001cd1848 ffffc900031cfa00 0000000000000000
raw: 0000000000000004 ffff8880231bf5d0 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 0, migratetype Unmovable, gfp_mask 0x100c40(GFP_NOFS|__GFP_HARDWALL), pid 4882, ts 82048382326, free_ts 82044730155
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x1b77/0x1c60 mm/page_alloc.c:4192
__alloc_pages+0x1e1/0x470 mm/page_alloc.c:5487
__page_cache_alloc+0xd2/0x3f0 mm/filemap.c:1022
do_read_cache_page+0x1da/0x1030 mm/filemap.c:3457
read_mapping_page include/linux/pagemap.h:515 [inline]
__get_metapage+0x35d/0x1060 fs/jfs/jfs_metapage.c:621
dbAllocCtl+0xd4/0x9b0 fs/jfs/jfs_dmap.c:1881
dbAllocAG+0x1e7/0xfe0 fs/jfs/jfs_dmap.c:1421
dbDiscardAG+0x2ca/0x8e0 fs/jfs/jfs_dmap.c:1676
jfs_ioc_trim+0x41e/0x680 fs/jfs/jfs_discard.c:106
jfs_ioctl+0x2a5/0x3a0 fs/jfs/ioctl.c:132
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1340 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x637/0x6c0 mm/page_alloc.c:3317
free_unref_page+0x94/0x280 mm/page_alloc.c:3396
qlist_free_all+0x35/0x90 mm/kasan/quarantine.c:176
kasan_quarantine_reduce+0x150/0x160 mm/kasan/quarantine.c:283
__kasan_slab_alloc+0x2f/0xd0 mm/kasan/common.c:444
kasan_slab_alloc include/linux/kasan.h:254 [inline]
slab_post_alloc_hook+0x4c/0x380 mm/slab.h:519
slab_alloc_node mm/slub.c:3225 [inline]
slab_alloc mm/slub.c:3233 [inline]
kmem_cache_alloc+0x100/0x290 mm/slub.c:3238
ext4_alloc_inode+0x1d/0x590 fs/ext4/super.c:1297
alloc_inode fs/inode.c:261 [inline]
new_inode_pseudo+0x5f/0x210 fs/inode.c:1001
new_inode+0x25/0x1c0 fs/inode.c:1030
__ext4_new_inode+0x2a7/0x39e0 fs/ext4/ialloc.c:963
ext4_mkdir+0x3c1/0xc50 fs/ext4/namei.c:3066
vfs_mkdir+0x387/0x570 fs/namei.c:4073
do_mkdirat+0x1d7/0x5a0 fs/namei.c:4098
__do_sys_mkdirat fs/namei.c:4113 [inline]
__se_sys_mkdirat fs/namei.c:4111 [inline]
__x64_sys_mkdirat+0x85/0x90 fs/namei.c:4111
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
Modules linked in:
CPU: 1 PID: 4507 Comm: syz-executor.0 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
bad_page+0x14b/0x170 mm/page_alloc.c:652
check_free_page mm/page_alloc.c:1209 [inline]
free_pages_prepare mm/page_alloc.c:1334 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x383/0x6c0 mm/page_alloc.c:3317
free_unref_page_list+0x122/0x7e0 mm/page_alloc.c:3433
release_pages+0x184b/0x1bb0 mm/swap.c:963
__pagevec_release+0x6d/0xe0 mm/swap.c:983
pagevec_release include/linux/pagevec.h:81 [inline]
truncate_inode_pages_range+0x2f3/0xef0 mm/truncate.c:329
dbUnmount+0x105/0x170 fs/jfs/jfs_dmap.c:264
jfs_umount+0x1fa/0x360 fs/jfs/jfs_umount.c:89
jfs_put_super+0x88/0x190 fs/jfs/super.c:194
generic_shutdown_super+0x130/0x300 fs/super.c:475
kill_block_super+0x7c/0xe0 fs/super.c:1427
deactivate_locked_super+0x93/0xf0 fs/super.c:335
cleanup_mnt+0x418/0x4d0 fs/namespace.c:1148
task_work_run+0x125/0x1a0 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fdd22d540d7
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fff5e18b168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fdd22d9e3b9 RCX: 00007fdd22d540d7
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fff5e18b220
RBP: 00007fff5e18b220 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff5e18c2e0
R13: 00007fdd22d9e3b9 R14: 0000000000013fc9 R15: 0000000000000003
BUG: Bad page state in process syz-executor.0 pfn:2539d
page:ffffea000094e740 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x2539d
flags: 0xfff00000002006(referenced|uptodate|private|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000002006 ffffea0000941f48 ffffc900031cfa00 0000000000000000
raw: 0000000000000004 ffff8880231bf9b0 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 0, migratetype Unmovable, gfp_mask 0x100c40(GFP_NOFS|__GFP_HARDWALL), pid 4884, ts 82822049432, free_ts 82818914460
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x1b77/0x1c60 mm/page_alloc.c:4192
__alloc_pages+0x1e1/0x470 mm/page_alloc.c:5487
__page_cache_alloc+0xd2/0x3f0 mm/filemap.c:1022
do_read_cache_page+0x1da/0x1030 mm/filemap.c:3457
read_mapping_page include/linux/pagemap.h:515 [inline]
__get_metapage+0x35d/0x1060 fs/jfs/jfs_metapage.c:621
dbAllocCtl+0xd4/0x9b0 fs/jfs/jfs_dmap.c:1881
dbAllocAG+0x1e7/0xfe0 fs/jfs/jfs_dmap.c:1421
dbDiscardAG+0x2ca/0x8e0 fs/jfs/jfs_dmap.c:1676
jfs_ioc_trim+0x41e/0x680 fs/jfs/jfs_discard.c:106
jfs_ioctl+0x2a5/0x3a0 fs/jfs/ioctl.c:132
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1340 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x637/0x6c0 mm/page_alloc.c:3317
free_unref_page+0x94/0x280 mm/page_alloc.c:3396
free_slab mm/slub.c:2020 [inline]
discard_slab mm/slub.c:2026 [inline]
__unfreeze_partials+0x1a5/0x200 mm/slub.c:2512
put_cpu_partial+0x12d/0x190 mm/slub.c:2592
qlist_free_all+0x35/0x90 mm/kasan/quarantine.c:176
kasan_quarantine_reduce+0x150/0x160 mm/kasan/quarantine.c:283
__kasan_slab_alloc+0x2f/0xd0 mm/kasan/common.c:444
kasan_slab_alloc include/linux/kasan.h:254 [inline]
slab_post_alloc_hook+0x4c/0x380 mm/slab.h:519
slab_alloc_node mm/slub.c:3225 [inline]
slab_alloc mm/slub.c:3233 [inline]
kmem_cache_alloc+0x100/0x290 mm/slub.c:3238
vm_area_alloc+0x20/0xe0 kernel/fork.c:350
__mmap_region mm/mmap.c:1782 [inline]
mmap_region+0xac7/0x1660 mm/mmap.c:2933
do_mmap+0x81f/0xea0 mm/mmap.c:1586
vm_mmap_pgoff+0x1b2/0x2b0 mm/util.c:551
ksys_mmap_pgoff+0x140/0x780 mm/mmap.c:1635
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
Modules linked in:
CPU: 1 PID: 4507 Comm: syz-executor.0 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
bad_page+0x14b/0x170 mm/page_alloc.c:652
check_free_page mm/page_alloc.c:1209 [inline]
free_pages_prepare mm/page_alloc.c:1334 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x383/0x6c0 mm/page_alloc.c:3317
free_unref_page_list+0x122/0x7e0 mm/page_alloc.c:3433
release_pages+0x184b/0x1bb0 mm/swap.c:963
__pagevec_release+0x6d/0xe0 mm/swap.c:983
pagevec_release include/linux/pagevec.h:81 [inline]
truncate_inode_pages_range+0x2f3/0xef0 mm/truncate.c:329
dbUnmount+0x105/0x170 fs/jfs/jfs_dmap.c:264
jfs_umount+0x1fa/0x360 fs/jfs/jfs_umount.c:89
jfs_put_super+0x88/0x190 fs/jfs/super.c:194
generic_shutdown_super+0x130/0x300 fs/super.c:475
kill_block_super+0x7c/0xe0 fs/super.c:1427
deactivate_locked_super+0x93/0xf0 fs/super.c:335
cleanup_mnt+0x418/0x4d0 fs/namespace.c:1148
task_work_run+0x125/0x1a0 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fdd22d540d7
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fff5e18b168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fdd22d9e3b9 RCX: 00007fdd22d540d7
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fff5e18b220
RBP: 00007fff5e18b220 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff5e18c2e0
R13: 00007fdd22d9e3b9 R14: 00000000000142cc R15: 0000000000000003
BUG: Bad page state in process syz-executor.0 pfn:7ca10
page:ffffea0001f28400 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x7ca10
flags: 0xfff00000002006(referenced|uptodate|private|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000002006 ffffea0000798308 ffffc900031cfa00 0000000000000000
raw: 0000000000000004 ffff88807d0df3e0 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 0, migratetype Unmovable, gfp_mask 0x100c40(GFP_NOFS|__GFP_HARDWALL), pid 4886, ts 83571759240, free_ts 83559398426
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x1b77/0x1c60 mm/page_alloc.c:4192
__alloc_pages+0x1e1/0x470 mm/page_alloc.c:5487
__page_cache_alloc+0xd2/0x3f0 mm/filemap.c:1022
do_read_cache_page+0x1da/0x1030 mm/filemap.c:3457
read_mapping_page include/linux/pagemap.h:515 [inline]
__get_metapage+0x35d/0x1060 fs/jfs/jfs_metapage.c:621
dbAllocCtl+0xd4/0x9b0 fs/jfs/jfs_dmap.c:1881
dbAllocAG+0x1e7/0xfe0 fs/jfs/jfs_dmap.c:1421
dbDiscardAG+0x2ca/0x8e0 fs/jfs/jfs_dmap.c:1676
jfs_ioc_trim+0x41e/0x680 fs/jfs/jfs_discard.c:106
jfs_ioctl+0x2a5/0x3a0 fs/jfs/ioctl.c:132
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1340 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x637/0x6c0 mm/page_alloc.c:3317
free_unref_page_list+0x122/0x7e0 mm/page_alloc.c:3433
release_pages+0x184b/0x1bb0 mm/swap.c:963
tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:240 [inline]
tlb_flush_mmu mm/mmu_gather.c:247 [inline]
tlb_finish_mmu+0x164/0x2e0 mm/mmu_gather.c:338
unmap_region+0x315/0x360 mm/mmap.c:2669
__do_munmap+0x9d3/0xdc0 mm/mmap.c:2899
__vm_munmap+0x137/0x230 mm/mmap.c:2952
__do_sys_munmap mm/mmap.c:2978 [inline]
__se_sys_munmap mm/mmap.c:2974 [inline]
__x64_sys_munmap+0x67/0x70 mm/mmap.c:2974
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
Modules linked in:
CPU: 1 PID: 4507 Comm: syz-executor.0 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
bad_page+0x14b/0x170 mm/page_alloc.c:652
check_free_page mm/page_alloc.c:1209 [inline]
free_pages_prepare mm/page_alloc.c:1334 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x383/0x6c0 mm/page_alloc.c:3317
free_unref_page_list+0x122/0x7e0 mm/page_alloc.c:3433
release_pages+0x184b/0x1bb0 mm/swap.c:963
__pagevec_release+0x6d/0xe0 mm/swap.c:983
pagevec_release include/linux/pagevec.h:81 [inline]
truncate_inode_pages_range+0x2f3/0xef0 mm/truncate.c:329
dbUnmount+0x105/0x170 fs/jfs/jfs_dmap.c:264
jfs_umount+0x1fa/0x360 fs/jfs/jfs_umount.c:89
jfs_put_super+0x88/0x190 fs/jfs/super.c:194
generic_shutdown_super+0x130/0x300 fs/super.c:475
kill_block_super+0x7c/0xe0 fs/super.c:1427
deactivate_locked_super+0x93/0xf0 fs/super.c:335
cleanup_mnt+0x418/0x4d0 fs/namespace.c:1148
task_work_run+0x125/0x1a0 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fdd22d540d7
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fff5e18b168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fdd22d9e3b9 RCX: 00007fdd22d540d7
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fff5e18b220
RBP: 00007fff5e18b220 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff5e18c2e0
R13: 00007fdd22d9e3b9 R14: 00000000000145df R15: 0000000000000003
BUG: Bad page state in process syz-executor.0 pfn:7341c
page:ffffea0001cd0700 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x7341c
flags: 0xfff00000002006(referenced|uptodate|private|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000002006 ffffea0000882fc8 ffffc900031cfa00 0000000000000000
raw: 0000000000000004 ffff88807d0dfe88 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 0, migratetype Unmovable, gfp_mask 0x100c40(GFP_NOFS|__GFP_HARDWALL), pid 4888, ts 84328395859, free_ts 84327540874
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x1b77/0x1c60 mm/page_alloc.c:4192
__alloc_pages+0x1e1/0x470 mm/page_alloc.c:5487
__page_cache_alloc+0xd2/0x3f0 mm/filemap.c:1022
do_read_cache_page+0x1da/0x1030 mm/filemap.c:3457
read_mapping_page include/linux/pagemap.h:515 [inline]
__get_metapage+0x35d/0x1060 fs/jfs/jfs_metapage.c:621
dbAllocCtl+0xd4/0x9b0 fs/jfs/jfs_dmap.c:1881
dbAllocAG+0x1e7/0xfe0 fs/jfs/jfs_dmap.c:1421
dbDiscardAG+0x2ca/0x8e0 fs/jfs/jfs_dmap.c:1676
jfs_ioc_trim+0x41e/0x680 fs/jfs/jfs_discard.c:106
jfs_ioctl+0x2a5/0x3a0 fs/jfs/ioctl.c:132
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1340 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x637/0x6c0 mm/page_alloc.c:3317
free_unref_page+0x94/0x280 mm/page_alloc.c:3396
free_slab mm/slub.c:2020 [inline]
discard_slab mm/slub.c:2026 [inline]
__unfreeze_partials+0x1a5/0x200 mm/slub.c:2512
put_cpu_partial+0x12d/0x190 mm/slub.c:2592
qlist_free_all+0x35/0x90 mm/kasan/quarantine.c:176
kasan_quarantine_reduce+0x150/0x160 mm/kasan/quarantine.c:283
__kasan_slab_alloc+0x2f/0xd0 mm/kasan/common.c:444
kasan_slab_alloc include/linux/kasan.h:254 [inline]
slab_post_alloc_hook+0x4c/0x380 mm/slab.h:519
slab_alloc_node mm/slub.c:3225 [inline]
slab_alloc mm/slub.c:3233 [inline]
__kmalloc+0x127/0x330 mm/slub.c:4408
kmalloc include/linux/slab.h:612 [inline]
kzalloc include/linux/slab.h:738 [inline]
tomoyo_encode2 security/tomoyo/realpath.c:45 [inline]
tomoyo_encode+0x27e/0x540 security/tomoyo/realpath.c:80
tomoyo_realpath_from_path+0x5cd/0x610 security/tomoyo/realpath.c:288
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_check_open_permission+0x183/0x360 security/tomoyo/file.c:771
security_file_open+0x5e/0xa0 security/security.c:1668
do_dentry_open+0x322/0xf80 fs/open.c:813
do_open fs/namei.c:3616 [inline]
path_openat+0x2682/0x2f30 fs/namei.c:3750
do_filp_open+0x1b3/0x3e0 fs/namei.c:3777
Modules linked in:
CPU: 1 PID: 4507 Comm: syz-executor.0 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
bad_page+0x14b/0x170 mm/page_alloc.c:652
check_free_page mm/page_alloc.c:1209 [inline]
free_pages_prepare mm/page_alloc.c:1334 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x383/0x6c0 mm/page_alloc.c:3317
free_unref_page_list+0x122/0x7e0 mm/page_alloc.c:3433
release_pages+0x184b/0x1bb0 mm/swap.c:963
__pagevec_release+0x6d/0xe0 mm/swap.c:983
pagevec_release include/linux/pagevec.h:81 [inline]
truncate_inode_pages_range+0x2f3/0xef0 mm/truncate.c:329
dbUnmount+0x105/0x170 fs/jfs/jfs_dmap.c:264
jfs_umount+0x1fa/0x360 fs/jfs/jfs_umount.c:89
jfs_put_super+0x88/0x190 fs/jfs/super.c:194
generic_shutdown_super+0x130/0x300 fs/super.c:475
kill_block_super+0x7c/0xe0 fs/super.c:1427
deactivate_locked_super+0x93/0xf0 fs/super.c:335
cleanup_mnt+0x418/0x4d0 fs/namespace.c:1148
task_work_run+0x125/0x1a0 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fdd22d540d7
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fff5e18b168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fdd22d9e3b9 RCX: 00007fdd22d540d7
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fff5e18b220
RBP: 00007fff5e18b220 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff5e18c2e0
R13: 00007fdd22d9e3b9 R14: 00000000000148ae R15: 0000000000000003
BUG: Bad page state in process syz-executor.0 pfn:17db9
page:ffffea00005f6e40 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x17db9
flags: 0xfff00000002004(uptodate|private|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000002004 ffffea0000789008 ffffc900031cfa00 0000000000000000
raw: 0000000000000004 ffff8880208c89b0 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 0, migratetype Unmovable, gfp_mask 0x100c40(GFP_NOFS|__GFP_HARDWALL), pid 4890, ts 85092450759, free_ts 85092305339
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x1b77/0x1c60 mm/page_alloc.c:4192
__alloc_pages+0x1e1/0x470 mm/page_alloc.c:5487
__page_cache_alloc+0xd2/0x3f0 mm/filemap.c:1022
do_read_cache_page+0x1da/0x1030 mm/filemap.c:3457
read_mapping_page include/linux/pagemap.h:515 [inline]
__get_metapage+0x35d/0x1060 fs/jfs/jfs_metapage.c:621
dbAllocCtl+0xd4/0x9b0 fs/jfs/jfs_dmap.c:1881
dbAllocAG+0x1e7/0xfe0 fs/jfs/jfs_dmap.c:1421
dbDiscardAG+0x2ca/0x8e0 fs/jfs/jfs_dmap.c:1676
jfs_ioc_trim+0x41e/0x680 fs/jfs/jfs_discard.c:106
jfs_ioctl+0x2a5/0x3a0 fs/jfs/ioctl.c:132
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1340 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x637/0x6c0 mm/page_alloc.c:3317
free_unref_page+0x94/0x280 mm/page_alloc.c:3396
free_slab mm/slub.c:2020 [inline]
discard_slab mm/slub.c:2026 [inline]
__unfreeze_partials+0x1a5/0x200 mm/slub.c:2512
put_cpu_partial+0x12d/0x190 mm/slub.c:2592
qlist_free_all+0x35/0x90 mm/kasan/quarantine.c:176
kasan_quarantine_reduce+0x150/0x160 mm/kasan/quarantine.c:283
__kasan_kmalloc_large+0x16/0xa0 mm/kasan/common.c:533
kasan_kmalloc_large include/linux/kasan.h:274 [inline]
kmalloc_order+0xeb/0x150 mm/slab_common.c:992
kmalloc_order_trace+0x14/0xf0 mm/slab_common.c:1002
kmalloc_array include/linux/slab.h:647 [inline]
dbDiscardAG+0x1a4/0x8e0 fs/jfs/jfs_dmap.c:1664
jfs_ioc_trim+0x41e/0x680 fs/jfs/jfs_discard.c:106
jfs_ioctl+0x2a5/0x3a0 fs/jfs/ioctl.c:132
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
Modules linked in:
CPU: 0 PID: 4507 Comm: syz-executor.0 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
bad_page+0x14b/0x170 mm/page_alloc.c:652
check_free_page mm/page_alloc.c:1209 [inline]
free_pages_prepare mm/page_alloc.c:1334 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x383/0x6c0 mm/page_alloc.c:3317
free_unref_page_list+0x122/0x7e0 mm/page_alloc.c:3433
release_pages+0x184b/0x1bb0 mm/swap.c:963
__pagevec_release+0x6d/0xe0 mm/swap.c:983
pagevec_release include/linux/pagevec.h:81 [inline]
truncate_inode_pages_range+0x2f3/0xef0 mm/truncate.c:329
dbUnmount+0x105/0x170 fs/jfs/jfs_dmap.c:264
jfs_umount+0x1fa/0x360 fs/jfs/jfs_umount.c:89
jfs_put_super+0x88/0x190 fs/jfs/super.c:194
generic_shutdown_super+0x130/0x300 fs/super.c:475
kill_block_super+0x7c/0xe0 fs/super.c:1427
deactivate_locked_super+0x93/0xf0 fs/super.c:335
cleanup_mnt+0x418/0x4d0 fs/namespace.c:1148
task_work_run+0x125/0x1a0 kernel/task_work.c:188
tracehook_notify_resume include/linux/tracehook.h:189 [inline]
exit_to_user_mode_loop+0x10f/0x130 kernel/entry/common.c:181
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:214
__syscall_exit_to_user_mode_work kernel/entry/common.c:296 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:307
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:86
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fdd22d540d7
Code: b0 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 b0 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fff5e18b168 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fdd22d9e3b9 RCX: 00007fdd22d540d7
RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fff5e18b220
RBP: 00007fff5e18b220 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fff5e18c2e0
R13: 00007fdd22d9e3b9 R14: 0000000000014bb3 R15: 0000000000000003
BUG: Bad page state in process syz-executor.0 pfn:245be
page:ffffea0000916f80 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x245be
flags: 0xfff00000002006(referenced|uptodate|private|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000002006 ffffea0000aace88 ffffc900031cfa00 0000000000000000
raw: 0000000000000004 ffff88801e5ce4d8 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 0, migratetype Unmovable, gfp_mask 0x100c40(GFP_NOFS|__GFP_HARDWALL), pid 4892, ts 85847667216, free_ts 85808170624
prep_new_page mm/page_alloc.c:2426 [inline]
get_page_from_freelist+0x1b77/0x1c60 mm/page_alloc.c:4192
__alloc_pages+0x1e1/0x470 mm/page_alloc.c:5487
__page_cache_alloc+0xd2/0x3f0 mm/filemap.c:1022
do_read_cache_page+0x1da/0x1030 mm/filemap.c:3457
read_mapping_page include/linux/pagemap.h:515 [inline]
__get_metapage+0x35d/0x1060 fs/jfs/jfs_metapage.c:621
dbAllocCtl+0xd4/0x9b0 fs/jfs/jfs_dmap.c:1881
dbAllocAG+0x1e7/0xfe0 fs/jfs/jfs_dmap.c:1421
dbDiscardAG+0x2ca/0x8e0 fs/jfs/jfs_dmap.c:1676
jfs_ioc_trim+0x41e/0x680 fs/jfs/jfs_discard.c:106
jfs_ioctl+0x2a5/0x3a0 fs/jfs/ioctl.c:132
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:874 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:860
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1340 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x637/0x6c0 mm/page_alloc.c:3317
free_unref_page_list+0x122/0x7e0 mm/page_alloc.c:3433
release_pages+0x184b/0x1bb0 mm/swap.c:963
tlb_batch_pages_flush mm/mmu_gather.c:49 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:240 [inline]
tlb_flush_mmu mm/mmu_gather.c:247 [inline]
tlb_finish_mmu+0x164/0x2e0 mm/mmu_gather.c:338
unmap_region+0x315/0x360 mm/mmap.c:2669
__do_munmap+0x9d3/0xdc0 mm/mmap.c:2899
__vm_munmap+0x137/0x230 mm/mmap.c:2952
__do_sys_munmap mm/mmap.c:2978 [inline]
__se_sys_munmap mm/mmap.c:2974 [inline]
__x64_sys_munmap+0x67/0x70 mm/mmap.c:2974
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
Modules linked in:
CPU: 1 PID: 4507 Comm: syz-executor.0 Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
dump_stack_lvl+0x168/0x230 lib/dump_stack.c:106
bad_page+0x14b/0x170 mm/page_alloc.c:652
check_free_page mm/page_alloc.c:1209 [inline]
free_pages_prepare mm/page_alloc.c:1334 [inline]
free_pcp_prepare mm/page_alloc.c:1391 [inline]
free_unref_page_prepare+0x383/0x6c0 mm/page_alloc.c:3317
free_unref_page_list+0x122/0x7e0 mm/page_alloc.c:3433