blkno = 5002c, nblocks = 1
ERROR: (device loop3): dbUpdatePMap: blocks are outside the map
ERROR: (device loop3): remounting filesystem as read-only
BUG: Bad page state in process jfsCommit  pfn:282fb
page:ffffea0000a0bec0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x24 pfn:0x282fb
flags: 0xfff00000002047(locked|referenced|uptodate|workingset|private|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000002047 dead000000000100 dead000000000122 0000000000000000
raw: 0000000000000024 ffff88807cdd7d90 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 6072, tgid 6071 (syz.3.444), ts 148768922625, free_ts 148765659063
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x173/0x1a0 mm/page_alloc.c:2560
 prep_new_page mm/page_alloc.c:2567 [inline]
 get_page_from_freelist+0x206b/0x2180 mm/page_alloc.c:4358
 __alloc_pages+0x1ec/0x4f0 mm/page_alloc.c:5658
 folio_alloc+0x1c/0x60 mm/mempolicy.c:2292
 filemap_alloc_folio+0xdb/0x480 mm/filemap.c:999
 do_read_cache_folio+0x1b9/0x790 mm/filemap.c:3623
 do_read_cache_page+0x32/0x230 mm/filemap.c:3701
 read_mapping_page include/linux/pagemap.h:793 [inline]
 __get_metapage+0x319/0xfb0 fs/jfs/jfs_metapage.c:620
 diRead+0x6e6/0xbb0 fs/jfs/jfs_imap.c:367
 jfs_iget+0x89/0x3f0 fs/jfs/inode.c:35
 jfs_lookup+0x21d/0x420 fs/jfs/namei.c:1469
 __lookup_slow+0x29d/0x3f0 fs/namei.c:1698
 lookup_slow+0x53/0x70 fs/namei.c:1715
 walk_component+0x2ad/0x3e0 fs/namei.c:2006
 lookup_last fs/namei.c:2463 [inline]
 path_lookupat+0x148/0x420 fs/namei.c:2487
 filename_lookup+0x229/0x580 fs/namei.c:2516
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1487 [inline]
 free_pcp_prepare mm/page_alloc.c:1537 [inline]
 free_unref_page_prepare+0x8e5/0x9e0 mm/page_alloc.c:3414
 free_unref_page+0x2e/0x3f0 mm/page_alloc.c:3509
 __vunmap+0x874/0xa40 mm/vmalloc.c:2783
 free_work+0x56/0x80 mm/vmalloc.c:97
 process_one_work+0x8ab/0x1160 kernel/workqueue.c:2292
 worker_thread+0xaf5/0x12a0 kernel/workqueue.c:2439
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
Modules linked in:
CPU: 0 PID: 109 Comm: jfsCommit Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
Call Trace:
 <TASK>
 dump_stack_lvl+0x188/0x24e lib/dump_stack.c:106
 bad_page+0x14b/0x170 mm/page_alloc.c:726
 free_page_is_bad mm/page_alloc.c:1318 [inline]
 free_pages_prepare mm/page_alloc.c:1479 [inline]
 free_pcp_prepare mm/page_alloc.c:1537 [inline]
 free_unref_page_prepare+0x447/0x9e0 mm/page_alloc.c:3414
 free_unref_page+0x2e/0x3f0 mm/page_alloc.c:3509
 txUnlock+0x275/0xcb0 fs/jfs/jfs_txnmgr.c:933
 txLazyCommit fs/jfs/jfs_txnmgr.c:2683 [inline]
 jfs_lazycommit+0x588/0xa90 fs/jfs/jfs_txnmgr.c:2733
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
page:ffffea0000a0bec0 refcount:0 mapcount:0 mapping:0000000000000000 index:0x24 pfn:0x282fb
flags: 0xfff00000002047(locked|referenced|uptodate|workingset|private|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff00000002047 dead000000000100 dead000000000122 0000000000000000
raw: 0000000000000024 ffff88807cdd7d90 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 6072, tgid 6071 (syz.3.444), ts 148768922625, free_ts 148765659063
 set_page_owner include/linux/page_owner.h:31 [inline]
 post_alloc_hook+0x173/0x1a0 mm/page_alloc.c:2560
 prep_new_page mm/page_alloc.c:2567 [inline]
 get_page_from_freelist+0x206b/0x2180 mm/page_alloc.c:4358
 __alloc_pages+0x1ec/0x4f0 mm/page_alloc.c:5658
 folio_alloc+0x1c/0x60 mm/mempolicy.c:2292
 filemap_alloc_folio+0xdb/0x480 mm/filemap.c:999
 do_read_cache_folio+0x1b9/0x790 mm/filemap.c:3623
 do_read_cache_page+0x32/0x230 mm/filemap.c:3701
 read_mapping_page include/linux/pagemap.h:793 [inline]
 __get_metapage+0x319/0xfb0 fs/jfs/jfs_metapage.c:620
 diRead+0x6e6/0xbb0 fs/jfs/jfs_imap.c:367
 jfs_iget+0x89/0x3f0 fs/jfs/inode.c:35
 jfs_lookup+0x21d/0x420 fs/jfs/namei.c:1469
 __lookup_slow+0x29d/0x3f0 fs/namei.c:1698
 lookup_slow+0x53/0x70 fs/namei.c:1715
 walk_component+0x2ad/0x3e0 fs/namei.c:2006
 lookup_last fs/namei.c:2463 [inline]
 path_lookupat+0x148/0x420 fs/namei.c:2487
 filename_lookup+0x229/0x580 fs/namei.c:2516
page last free stack trace:
 reset_page_owner include/linux/page_owner.h:24 [inline]
 free_pages_prepare mm/page_alloc.c:1487 [inline]
 free_pcp_prepare mm/page_alloc.c:1537 [inline]
 free_unref_page_prepare+0x8e5/0x9e0 mm/page_alloc.c:3414
 free_unref_page+0x2e/0x3f0 mm/page_alloc.c:3509
 __vunmap+0x874/0xa40 mm/vmalloc.c:2783
 free_work+0x56/0x80 mm/vmalloc.c:97
 process_one_work+0x8ab/0x1160 kernel/workqueue.c:2292
 worker_thread+0xaf5/0x12a0 kernel/workqueue.c:2439
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
------------[ cut here ]------------
kernel BUG at include/linux/mm.h:1146!
invalid opcode: 0000 [#1] PREEMPT SMP KASAN
CPU: 0 PID: 109 Comm: jfsCommit Tainted: G    B              syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/16/2026
RIP: 0010:folio_get include/linux/mm.h:1146 [inline]
RIP: 0010:get_page include/linux/mm.h:1152 [inline]
RIP: 0010:put_metapage+0x244/0x330 fs/jfs/jfs_metapage.c:721
Code: 38 c1 0f 8c 31 ff ff ff 4c 89 ef e8 36 57 e0 fe e9 24 ff ff ff e8 4c fb 8e fe 48 8b 3c 24 48 c7 c6 c0 27 e6 8a e8 0c 48 ca fe <0f> 0b 48 89 ee 48 81 e6 ff 0f 00 00 31 ff e8 09 ff 8e fe 48 89 2c
RSP: 0018:ffffc90002d57cf0 EFLAGS: 00010246
RAX: 88d5e7ebd73dff00 RBX: ffff88807cdd7d90 RCX: 88d5e7ebd73dff00
RDX: 0000000000000000 RSI: ffffffff8aff71c0 RDI: ffffffff8aff7180
RBP: 000000000000007f R08: ffffffff8f22dfef R09: 1ffffffff1e45bfd
R10: dffffc0000000000 R11: fffffbfff1e45bfe R12: ffff88807cdd7db8
R13: ffffea0000a0bef4 R14: 1ffff1100f9bafb7 R15: 1ffff1100f9bafc4
FS:  0000000000000000(0000) GS:ffff8880b8c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556f514a78 CR3: 000000005d6d1000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 txUnlock+0x426/0xcb0 fs/jfs/jfs_txnmgr.c:948
 txLazyCommit fs/jfs/jfs_txnmgr.c:2683 [inline]
 jfs_lazycommit+0x588/0xa90 fs/jfs/jfs_txnmgr.c:2733
 kthread+0x29d/0x330 kernel/kthread.c:376
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:folio_get include/linux/mm.h:1146 [inline]
RIP: 0010:get_page include/linux/mm.h:1152 [inline]
RIP: 0010:put_metapage+0x244/0x330 fs/jfs/jfs_metapage.c:721
Code: 38 c1 0f 8c 31 ff ff ff 4c 89 ef e8 36 57 e0 fe e9 24 ff ff ff e8 4c fb 8e fe 48 8b 3c 24 48 c7 c6 c0 27 e6 8a e8 0c 48 ca fe <0f> 0b 48 89 ee 48 81 e6 ff 0f 00 00 31 ff e8 09 ff 8e fe 48 89 2c
RSP: 0018:ffffc90002d57cf0 EFLAGS: 00010246
RAX: 88d5e7ebd73dff00 RBX: ffff88807cdd7d90 RCX: 88d5e7ebd73dff00
RDX: 0000000000000000 RSI: ffffffff8aff71c0 RDI: ffffffff8aff7180
RBP: 000000000000007f R08: ffffffff8f22dfef R09: 1ffffffff1e45bfd
R10: dffffc0000000000 R11: fffffbfff1e45bfe R12: ffff88807cdd7db8
R13: ffffea0000a0bef4 R14: 1ffff1100f9bafb7 R15: 1ffff1100f9bafc4
FS:  0000000000000000(0000) GS:ffff8880b8c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055556f514a78 CR3: 000000005d6d1000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400