BUG: Bad page state in process jfsCommit  pfn:588f1
page:ffffea0001623c40 refcount:0 mapcount:0 mapping:0000000000000000 index:0x2c pfn:0x588f1
flags: 0xfff0800000820d(locked|referenced|uptodate|workingset|private|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff0800000820d dead000000000100 dead000000000122 0000000000000000
raw: 000000000000002c ffff8880589b6c98 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 14685, tgid 14684 (syz.1.1864), ts 1059131745110, free_ts 1058112046494
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x1cd/0x210 mm/page_alloc.c:1554
 prep_new_page mm/page_alloc.c:1561 [inline]
 get_page_from_freelist+0x195c/0x19f0 mm/page_alloc.c:3191
 __alloc_pages+0x1e3/0x460 mm/page_alloc.c:4457
 folio_alloc+0x1e/0x30 mm/mempolicy.c:2291
 filemap_alloc_folio+0xdf/0x470 mm/filemap.c:1004
 __filemap_get_folio+0x3ee/0xbc0 mm/filemap.c:1962
 pagecache_get_page+0x2a/0x250 mm/folio-compat.c:99
 find_or_create_page include/linux/pagemap.h:755 [inline]
 grab_cache_page include/linux/pagemap.h:877 [inline]
 __get_metapage+0x2a8/0xfa0 fs/jfs/jfs_metapage.c:613
 dtSplitRoot+0x203/0x16b0 fs/jfs/jfs_dtree.c:1910
 dtSplitUp fs/jfs/jfs_dtree.c:993 [inline]
 dtInsert+0xeec/0x5f40 fs/jfs/jfs_dtree.c:871
 jfs_create+0x6a1/0xa40 fs/jfs/namei.c:137
 lookup_open fs/namei.c:3496 [inline]
 open_last_lookups fs/namei.c:3564 [inline]
 path_openat+0x1277/0x3190 fs/namei.c:3794
 do_filp_open+0x1c5/0x3d0 fs/namei.c:3824
 do_sys_openat2+0x12c/0x1c0 fs/open.c:1419
 do_sys_open fs/open.c:1434 [inline]
 __do_sys_creat fs/open.c:1512 [inline]
 __se_sys_creat fs/open.c:1506 [inline]
 __x64_sys_creat+0x90/0xb0 fs/open.c:1506
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1154 [inline]
 free_unref_page_prepare+0x7ce/0x8e0 mm/page_alloc.c:2336
 free_unref_page+0x32/0x2e0 mm/page_alloc.c:2429
 vfree+0x1a6/0x320 mm/vmalloc.c:2868
 delayed_vfree_work+0x55/0x80 mm/vmalloc.c:2788
 process_one_work kernel/workqueue.c:2634 [inline]
 process_scheduled_works+0xa45/0x15b0 kernel/workqueue.c:2711
 worker_thread+0xa55/0xfc0 kernel/workqueue.c:2792
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
Modules linked in:
CPU: 0 PID: 112 Comm: jfsCommit Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
Call Trace:
 <TASK>
 dump_stack_lvl+0x16c/0x230 lib/dump_stack.c:106
 bad_page+0x14b/0x170 mm/page_alloc.c:512
 free_page_is_bad mm/page_alloc.c:961 [inline]
 free_pages_prepare mm/page_alloc.c:1146 [inline]
 free_unref_page_prepare+0x887/0x8e0 mm/page_alloc.c:2336
 free_unref_page+0x32/0x2e0 mm/page_alloc.c:2429
 txUnlock+0x27e/0xcb0 fs/jfs/jfs_txnmgr.c:932
 txLazyCommit fs/jfs/jfs_txnmgr.c:2682 [inline]
 jfs_lazycommit+0x570/0xa60 fs/jfs/jfs_txnmgr.c:2732
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
 </TASK>
page:ffffea0001623c40 refcount:0 mapcount:0 mapping:0000000000000000 index:0x2c pfn:0x588f1
flags: 0xfff0800000820d(locked|referenced|uptodate|workingset|private|node=0|zone=1|lastcpupid=0x7ff)
page_type: 0xffffffff()
raw: 00fff0800000820d dead000000000100 dead000000000122 0000000000000000
raw: 000000000000002c ffff8880589b6c98 00000000ffffffff 0000000000000000
page dumped because: VM_BUG_ON_FOLIO(((unsigned int) folio_ref_count(folio) + 127u <= 127u))
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 14685, tgid 14684 (syz.1.1864), ts 1059131745110, free_ts 1058112046494
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x1cd/0x210 mm/page_alloc.c:1554
 prep_new_page mm/page_alloc.c:1561 [inline]
 get_page_from_freelist+0x195c/0x19f0 mm/page_alloc.c:3191
 __alloc_pages+0x1e3/0x460 mm/page_alloc.c:4457
 folio_alloc+0x1e/0x30 mm/mempolicy.c:2291
 filemap_alloc_folio+0xdf/0x470 mm/filemap.c:1004
 __filemap_get_folio+0x3ee/0xbc0 mm/filemap.c:1962
 pagecache_get_page+0x2a/0x250 mm/folio-compat.c:99
 find_or_create_page include/linux/pagemap.h:755 [inline]
 grab_cache_page include/linux/pagemap.h:877 [inline]
 __get_metapage+0x2a8/0xfa0 fs/jfs/jfs_metapage.c:613
 dtSplitRoot+0x203/0x16b0 fs/jfs/jfs_dtree.c:1910
 dtSplitUp fs/jfs/jfs_dtree.c:993 [inline]
 dtInsert+0xeec/0x5f40 fs/jfs/jfs_dtree.c:871
 jfs_create+0x6a1/0xa40 fs/jfs/namei.c:137
 lookup_open fs/namei.c:3496 [inline]
 open_last_lookups fs/namei.c:3564 [inline]
 path_openat+0x1277/0x3190 fs/namei.c:3794
 do_filp_open+0x1c5/0x3d0 fs/namei.c:3824
 do_sys_openat2+0x12c/0x1c0 fs/open.c:1419
 do_sys_open fs/open.c:1434 [inline]
 __do_sys_creat fs/open.c:1512 [inline]
 __se_sys_creat fs/open.c:1506 [inline]
 __x64_sys_creat+0x90/0xb0 fs/open.c:1506
 do_syscall_x64 arch/x86/entry/common.c:51 [inline]
 do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1154 [inline]
 free_unref_page_prepare+0x7ce/0x8e0 mm/page_alloc.c:2336
 free_unref_page+0x32/0x2e0 mm/page_alloc.c:2429
 vfree+0x1a6/0x320 mm/vmalloc.c:2868
 delayed_vfree_work+0x55/0x80 mm/vmalloc.c:2788
 process_one_work kernel/workqueue.c:2634 [inline]
 process_scheduled_works+0xa45/0x15b0 kernel/workqueue.c:2711
 worker_thread+0xa55/0xfc0 kernel/workqueue.c:2792
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
------------[ cut here ]------------
kernel BUG at include/linux/mm.h:1458!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 112 Comm: jfsCommit Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/02/2025
RIP: 0010:folio_get include/linux/mm.h:1458 [inline]
RIP: 0010:get_page include/linux/mm.h:1464 [inline]
RIP: 0010:put_metapage+0x253/0x340 fs/jfs/jfs_metapage.c:750
Code: 38 c1 0f 8c 32 ff ff ff 4c 89 ef e8 f7 29 dd fe e9 25 ff ff ff e8 bd ce 85 fe 48 8b 3c 24 48 c7 c6 80 f4 e3 8a e8 5d 94 c5 fe <0f> 0b f3 0f 1e fa 4c 8b 2c 24 4c 89 ee 48 81 e6 ff 0f 00 00 31 ff
RSP: 0018:ffffc90002ce7cc0 EFLAGS: 00010246
RAX: 79eabaabf9dd7d00 RBX: ffff8880589b6c98 RCX: 79eabaabf9dd7d00
RDX: 0000000000000000 RSI: ffffffff8afc6ae0 RDI: ffffffff8afc6aa0
RBP: 000000000000007f R08: ffffffff8e4a8d6f R09: 1ffffffff1c951ad
R10: dffffc0000000000 R11: fffffbfff1c951ae R12: ffff8880589b6cc0
R13: ffffea0001623c74 R14: 1ffff1100b136d98 R15: 1ffff1100b136da5
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055d06bd1c138 CR3: 000000002feaa000 CR4: 00000000003506e0
Call Trace:
 <TASK>
 txUnlock+0x427/0xcb0 fs/jfs/jfs_txnmgr.c:947
 txLazyCommit fs/jfs/jfs_txnmgr.c:2682 [inline]
 jfs_lazycommit+0x570/0xa60 fs/jfs/jfs_txnmgr.c:2732
 kthread+0x2fa/0x390 kernel/kthread.c:388
 ret_from_fork+0x48/0x80 arch/x86/kernel/process.c:152
 ret_from_fork_asm+0x11/0x20 arch/x86/entry/entry_64.S:293
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:folio_get include/linux/mm.h:1458 [inline]
RIP: 0010:get_page include/linux/mm.h:1464 [inline]
RIP: 0010:put_metapage+0x253/0x340 fs/jfs/jfs_metapage.c:750
Code: 38 c1 0f 8c 32 ff ff ff 4c 89 ef e8 f7 29 dd fe e9 25 ff ff ff e8 bd ce 85 fe 48 8b 3c 24 48 c7 c6 80 f4 e3 8a e8 5d 94 c5 fe <0f> 0b f3 0f 1e fa 4c 8b 2c 24 4c 89 ee 48 81 e6 ff 0f 00 00 31 ff
RSP: 0018:ffffc90002ce7cc0 EFLAGS: 00010246
RAX: 79eabaabf9dd7d00 RBX: ffff8880589b6c98 RCX: 79eabaabf9dd7d00
RDX: 0000000000000000 RSI: ffffffff8afc6ae0 RDI: ffffffff8afc6aa0
RBP: 000000000000007f R08: ffffffff8e4a8d6f R09: 1ffffffff1c951ad
R10: dffffc0000000000 R11: fffffbfff1c951ae R12: ffff8880589b6cc0
R13: ffffea0001623c74 R14: 1ffff1100b136d98 R15: 1ffff1100b136da5
FS:  0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055d06bd1c138 CR3: 000000005a28a000 CR4: 00000000003506e0