BUG: Bad page state in process syz-executor pfn:612d4
page:ffffea000184b500 refcount:0 mapcount:0 mapping:0000000000000000 index:0x4 pfn:0x612d4
flags: 0xfff18000002046(referenced|uptodate|workingset|private|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff18000002046 ffffea0000921148 ffffc900030c7960 0000000000000000
raw: 0000000000000004 ffff88807d3bf4d8 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 0x140c40(GFP_NOFS|__GFP_COMP|__GFP_HARDWALL), pid 19065, tgid 19064 (syz.4.2926), ts 2216021427323, free_ts 2215893776007
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x173/0x1a0 mm/page_alloc.c:2532
prep_new_page mm/page_alloc.c:2539 [inline]
get_page_from_freelist+0x1a1e/0x1ab0 mm/page_alloc.c:4328
__alloc_pages+0x1ec/0x4f0 mm/page_alloc.c:5614
folio_alloc+0x1c/0x60 mm/mempolicy.c:2292
filemap_alloc_folio+0xdb/0x480 mm/filemap.c:999
do_read_cache_folio+0x1bb/0x760 mm/filemap.c:3623
do_read_cache_page+0x32/0x220 mm/filemap.c:3701
read_mapping_page include/linux/pagemap.h:793 [inline]
__get_metapage+0x316/0xfa0 fs/jfs/jfs_metapage.c:620
dbAllocCtl+0xd4/0x9b0 fs/jfs/jfs_dmap.c:1813
dbAllocAG+0x1e7/0xfe0 fs/jfs/jfs_dmap.c:1353
dbDiscardAG+0x2c5/0x8e0 fs/jfs/jfs_dmap.c:1608
jfs_ioc_trim+0x42b/0x660 fs/jfs/jfs_discard.c:105
jfs_ioctl+0x28f/0x3b0 fs/jfs/ioctl.c:131
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1459 [inline]
free_pcp_prepare mm/page_alloc.c:1509 [inline]
free_unref_page_prepare+0x8b4/0x9a0 mm/page_alloc.c:3384
free_unref_page_list+0xbb/0x8e0 mm/page_alloc.c:3525
release_pages+0x1fa6/0x2220 mm/swap.c:1035
tlb_batch_pages_flush mm/mmu_gather.c:59 [inline]
tlb_flush_mmu_free mm/mmu_gather.c:254 [inline]
tlb_flush_mmu+0x105/0x220 mm/mmu_gather.c:261
tlb_finish_mmu+0xbd/0x1c0 mm/mmu_gather.c:361
unmap_region+0x29c/0x300 mm/mmap.c:2343
do_mas_align_munmap+0xcc2/0x12b0 mm/mmap.c:2592
do_mas_munmap+0x240/0x2b0 mm/mmap.c:2650
__vm_munmap+0x1ac/0x2d0 mm/mmap.c:2936
__do_sys_munmap mm/mmap.c:2961 [inline]
__se_sys_munmap mm/mmap.c:2958 [inline]
__x64_sys_munmap+0x5c/0x70 mm/mmap.c:2958
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
Modules linked in:
CPU: 0 PID: 14799 Comm: syz-executor Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
dump_stack_lvl+0x188/0x24e lib/dump_stack.c:106
bad_page+0x14b/0x170 mm/page_alloc.c:699
free_page_is_bad mm/page_alloc.c:1291 [inline]
free_pages_prepare mm/page_alloc.c:1452 [inline]
free_pcp_prepare mm/page_alloc.c:1509 [inline]
free_unref_page_prepare+0x42a/0x9a0 mm/page_alloc.c:3384
free_unref_page_list+0xbb/0x8e0 mm/page_alloc.c:3525
release_pages+0x1fa6/0x2220 mm/swap.c:1035
__pagevec_release+0x6d/0xe0 mm/swap.c:1055
pagevec_release include/linux/pagevec.h:71 [inline]
folio_batch_release include/linux/pagevec.h:135 [inline]
truncate_inode_pages_range+0x352/0x1090 mm/truncate.c:397
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+0x130/0x340 fs/super.c:501
kill_block_super+0x7c/0xe0 fs/super.c:1470
deactivate_locked_super+0x93/0xf0 fs/super.c:332
cleanup_mnt+0x42c/0x4b0 fs/namespace.c:1191
task_work_run+0x1d0/0x260 kernel/task_work.c:203
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f7435b9c117
Code: a2 c7 05 7c 94 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 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 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fffc2666308 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f7435c0471f RCX: 00007f7435b9c117
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffc26663c0
RBP: 00007fffc26663c0 R08: 00007fffc26673c0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffc2667450
R13: 00007f7435c0471f R14: 0000000000209334 R15: 00007fffc2667490
BUG: Bad page state in process syz-executor pfn:24845
page:ffffea0000921140 refcount:0 mapcount:0 mapping:0000000000000000 index:0x3 pfn:0x24845
flags: 0xfff18000002046(referenced|uptodate|workingset|private|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff18000002046 ffffea0001e22608 ffffc900030c7960 0000000000000000
raw: 0000000000000003 ffff88807d3bf5d0 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 0x140c40(GFP_NOFS|__GFP_COMP|__GFP_HARDWALL), pid 19065, tgid 19064 (syz.4.2926), ts 2216064488719, free_ts 2215823151970
set_page_owner include/linux/page_owner.h:31 [inline]
post_alloc_hook+0x173/0x1a0 mm/page_alloc.c:2532
prep_new_page mm/page_alloc.c:2539 [inline]
get_page_from_freelist+0x1a1e/0x1ab0 mm/page_alloc.c:4328
__alloc_pages+0x1ec/0x4f0 mm/page_alloc.c:5614
folio_alloc+0x1c/0x60 mm/mempolicy.c:2292
filemap_alloc_folio+0xdb/0x480 mm/filemap.c:999
do_read_cache_folio+0x1bb/0x760 mm/filemap.c:3623
do_read_cache_page+0x32/0x220 mm/filemap.c:3701
read_mapping_page include/linux/pagemap.h:793 [inline]
__get_metapage+0x316/0xfa0 fs/jfs/jfs_metapage.c:620
dbAdjCtl+0x144/0xa20 fs/jfs/jfs_dmap.c:2483
dbAllocDmap fs/jfs/jfs_dmap.c:2044 [inline]
dbAllocDmapLev+0x209/0x3c0 fs/jfs/jfs_dmap.c:1988
dbAllocCtl+0x148/0x9b0 fs/jfs/jfs_dmap.c:1825
dbAllocAG+0x1e7/0xfe0 fs/jfs/jfs_dmap.c:1353
dbDiscardAG+0x2c5/0x8e0 fs/jfs/jfs_dmap.c:1608
jfs_ioc_trim+0x42b/0x660 fs/jfs/jfs_discard.c:105
jfs_ioctl+0x28f/0x3b0 fs/jfs/ioctl.c:131
vfs_ioctl fs/ioctl.c:51 [inline]
__do_sys_ioctl fs/ioctl.c:870 [inline]
__se_sys_ioctl+0xfa/0x170 fs/ioctl.c:856
page last free stack trace:
reset_page_owner include/linux/page_owner.h:24 [inline]
free_pages_prepare mm/page_alloc.c:1459 [inline]
free_pcp_prepare mm/page_alloc.c:1509 [inline]
free_unref_page_prepare+0x8b4/0x9a0 mm/page_alloc.c:3384
free_unref_page+0x2e/0x3f0 mm/page_alloc.c:3479
qlink_free mm/kasan/quarantine.c:168 [inline]
qlist_free_all+0x76/0xe0 mm/kasan/quarantine.c:187
kasan_quarantine_reduce+0x144/0x160 mm/kasan/quarantine.c:294
__kasan_slab_alloc+0x1e/0x80 mm/kasan/common.c:306
kasan_slab_alloc include/linux/kasan.h:201 [inline]
slab_post_alloc_hook+0x4b/0x480 mm/slab.h:737
slab_alloc_node mm/slub.c:3359 [inline]
slab_alloc mm/slub.c:3367 [inline]
__kmem_cache_alloc_lru mm/slub.c:3374 [inline]
kmem_cache_alloc+0x123/0x2f0 mm/slub.c:3383
vm_area_dup+0x23/0x1a0 kernel/fork.c:467
__split_vma+0xb9/0x500 mm/mmap.c:2363
do_mas_align_munmap+0x397/0x12b0 mm/mmap.c:2480
do_mas_munmap+0x240/0x2b0 mm/mmap.c:2650
__vm_munmap+0x1ac/0x2d0 mm/mmap.c:2936
__do_sys_munmap mm/mmap.c:2961 [inline]
__se_sys_munmap mm/mmap.c:2958 [inline]
__x64_sys_munmap+0x5c/0x70 mm/mmap.c:2958
do_syscall_x64 arch/x86/entry/common.c:46 [inline]
do_syscall_64+0x4c/0xa0 arch/x86/entry/common.c:76
entry_SYSCALL_64_after_hwframe+0x68/0xd2
Modules linked in:
CPU: 1 PID: 14799 Comm: syz-executor Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Call Trace:
dump_stack_lvl+0x188/0x24e lib/dump_stack.c:106
bad_page+0x14b/0x170 mm/page_alloc.c:699
free_page_is_bad mm/page_alloc.c:1291 [inline]
free_pages_prepare mm/page_alloc.c:1452 [inline]
free_pcp_prepare mm/page_alloc.c:1509 [inline]
free_unref_page_prepare+0x42a/0x9a0 mm/page_alloc.c:3384
free_unref_page_list+0xbb/0x8e0 mm/page_alloc.c:3525
release_pages+0x1fa6/0x2220 mm/swap.c:1035
__pagevec_release+0x6d/0xe0 mm/swap.c:1055
pagevec_release include/linux/pagevec.h:71 [inline]
folio_batch_release include/linux/pagevec.h:135 [inline]
truncate_inode_pages_range+0x352/0x1090 mm/truncate.c:397
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+0x130/0x340 fs/super.c:501
kill_block_super+0x7c/0xe0 fs/super.c:1470
deactivate_locked_super+0x93/0xf0 fs/super.c:332
cleanup_mnt+0x42c/0x4b0 fs/namespace.c:1191
task_work_run+0x1d0/0x260 kernel/task_work.c:203
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f7435b9c117
Code: a2 c7 05 7c 94 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 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 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fffc2666308 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f7435c0471f RCX: 00007f7435b9c117
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffc26663c0
RBP: 00007fffc26663c0 R08: 00007fffc26673c0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffc2667450
R13: 00007f7435c0471f R14: 0000000000209334 R15: 00007fffc2667490
------------[ cut here ]------------
kernel BUG at fs/reiserfs/journal.c:1916!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 14799 Comm: syz-executor Tainted: G B syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
RIP: 0010:do_journal_release+0x4e2/0x4f0 fs/reiserfs/journal.c:1916
Code: b8 ff e9 a8 fc ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 06 fd ff ff 4c 89 ff e8 28 3a b8 ff e9 f9 fc ff ff e8 3e 4f 67 ff <0f> 0b e8 37 4f 67 ff 0f 0b 0f 1f 44 00 00 41 57 41 56 53 48 89 f3
RSP: 0018:ffffc900030c7b00 EFLAGS: 00010293
RAX: ffffffff821b2332 RBX: 1ffff92000618f64 RCX: ffff8880784e1dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900030c7bf8 R08: ffffc900030c7b77 R09: ffffc900030c7b40
R10: dffffc0000000000 R11: fffff52000618f6f R12: ffffc90004cd1000
R13: dffffc0000000000 R14: ffff888057ec8678 R15: 0000000000000000
FS: 000055557cf95500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffc2665cb0 CR3: 0000000054d27000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
journal_release+0x1b/0x30 fs/reiserfs/journal.c:1971
reiserfs_put_super+0x267/0x510 fs/reiserfs/super.c:616
generic_shutdown_super+0x130/0x340 fs/super.c:501
kill_block_super+0x7c/0xe0 fs/super.c:1470
deactivate_locked_super+0x93/0xf0 fs/super.c:332
cleanup_mnt+0x42c/0x4b0 fs/namespace.c:1191
task_work_run+0x1d0/0x260 kernel/task_work.c:203
resume_user_mode_work include/linux/resume_user_mode.h:49 [inline]
exit_to_user_mode_loop+0xe6/0x110 kernel/entry/common.c:177
exit_to_user_mode_prepare+0xee/0x180 kernel/entry/common.c:210
__syscall_exit_to_user_mode_work kernel/entry/common.c:292 [inline]
syscall_exit_to_user_mode+0x16/0x40 kernel/entry/common.c:303
do_syscall_64+0x58/0xa0 arch/x86/entry/common.c:82
entry_SYSCALL_64_after_hwframe+0x68/0xd2
RIP: 0033:0x7f7435b9c117
Code: a2 c7 05 7c 94 24 00 00 00 00 00 eb 96 e8 e1 12 00 00 90 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 e8 ff ff ff f7 d8 64 89 02 b8
RSP: 002b:00007fffc2666308 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007f7435c0471f RCX: 00007f7435b9c117
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007fffc26663c0
RBP: 00007fffc26663c0 R08: 00007fffc26673c0 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000246 R12: 00007fffc2667450
R13: 00007f7435c0471f R14: 000000000020a0ab R15: 00007fffc2667490
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:do_journal_release+0x4e2/0x4f0 fs/reiserfs/journal.c:1916
Code: b8 ff e9 a8 fc ff ff 44 89 f9 80 e1 07 80 c1 03 38 c1 0f 8c 06 fd ff ff 4c 89 ff e8 28 3a b8 ff e9 f9 fc ff ff e8 3e 4f 67 ff <0f> 0b e8 37 4f 67 ff 0f 0b 0f 1f 44 00 00 41 57 41 56 53 48 89 f3
RSP: 0018:ffffc900030c7b00 EFLAGS: 00010293
RAX: ffffffff821b2332 RBX: 1ffff92000618f64 RCX: ffff8880784e1dc0
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc900030c7bf8 R08: ffffc900030c7b77 R09: ffffc900030c7b40
R10: dffffc0000000000 R11: fffff52000618f6f R12: ffffc90004cd1000
R13: dffffc0000000000 R14: ffff888057ec8678 R15: 0000000000000000
FS: 000055557cf95500(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fffc2665cb0 CR3: 0000000054d27000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400