BUG: Bad page state in process jfsCommit  pfn:7d188
page:ffffea0001f46200 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1c pfn:0x7d188
flags: 0xfff10000002047(locked|referenced|uptodate|workingset|private|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff10000002047 dead000000000100 dead000000000122 0000000000000000
raw: 000000000000001c ffff888056c4fc98 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 4580, tgid 4579 (syz.1.18), ts 111011991580, free_ts 110977673882
 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:2294
 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:821 [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_fill_super+0x707/0xaf0 fs/jfs/super.c:581
 mount_bdev+0x28a/0x3c0 fs/super.c:1454
 legacy_get_tree+0xe6/0x180 fs/fs_context.c:632
 vfs_get_tree+0x88/0x270 fs/super.c:1584
 do_new_mount+0x247/0xa50 fs/namespace.c:3104
 do_mount fs/namespace.c:3475 [inline]
 __do_sys_mount fs/namespace.c:3683 [inline]
 __se_sys_mount+0x2e3/0x3d0 fs/namespace.c:3660
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_list+0xbb/0x8e0 mm/page_alloc.c:3555
 release_pages+0x20d1/0x2340 mm/swap.c:1035
 tlb_batch_pages_flush mm/mmu_gather.c:60 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:255 [inline]
 tlb_flush_mmu+0x105/0x220 mm/mmu_gather.c:262
 tlb_finish_mmu+0xf0/0x220 mm/mmu_gather.c:394
 unmap_region+0x29c/0x300 mm/mmap.c:2351
 do_mas_align_munmap+0xcda/0x12d0 mm/mmap.c:2600
 do_mas_munmap+0x240/0x2b0 mm/mmap.c:2658
 __vm_munmap+0x1aa/0x2d0 mm/mmap.c:2944
 __do_sys_munmap mm/mmap.c:2969 [inline]
 __se_sys_munmap mm/mmap.c:2966 [inline]
 __x64_sys_munmap+0x5c/0x70 mm/mmap.c:2966
 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: 109 Comm: jfsCommit Not tainted syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/07/2026
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:ffffea0001f46200 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1c pfn:0x7d188
flags: 0xfff10000002047(locked|referenced|uptodate|workingset|private|node=0|zone=1|lastcpupid=0x7ff)
raw: 00fff10000002047 dead000000000100 dead000000000122 0000000000000000
raw: 000000000000001c ffff888056c4fc98 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 4580, tgid 4579 (syz.1.18), ts 111011991580, free_ts 110977673882
 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:2294
 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:821 [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_fill_super+0x707/0xaf0 fs/jfs/super.c:581
 mount_bdev+0x28a/0x3c0 fs/super.c:1454
 legacy_get_tree+0xe6/0x180 fs/fs_context.c:632
 vfs_get_tree+0x88/0x270 fs/super.c:1584
 do_new_mount+0x247/0xa50 fs/namespace.c:3104
 do_mount fs/namespace.c:3475 [inline]
 __do_sys_mount fs/namespace.c:3683 [inline]
 __se_sys_mount+0x2e3/0x3d0 fs/namespace.c:3660
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_list+0xbb/0x8e0 mm/page_alloc.c:3555
 release_pages+0x20d1/0x2340 mm/swap.c:1035
 tlb_batch_pages_flush mm/mmu_gather.c:60 [inline]
 tlb_flush_mmu_free mm/mmu_gather.c:255 [inline]
 tlb_flush_mmu+0x105/0x220 mm/mmu_gather.c:262
 tlb_finish_mmu+0xf0/0x220 mm/mmu_gather.c:394
 unmap_region+0x29c/0x300 mm/mmap.c:2351
 do_mas_align_munmap+0xcda/0x12d0 mm/mmap.c:2600
 do_mas_munmap+0x240/0x2b0 mm/mmap.c:2658
 __vm_munmap+0x1aa/0x2d0 mm/mmap.c:2944
 __do_sys_munmap mm/mmap.c:2969 [inline]
 __se_sys_munmap mm/mmap.c:2966 [inline]
 __x64_sys_munmap+0x5c/0x70 mm/mmap.c:2966
 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
------------[ 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 10/07/2026
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 a6 0b e7 fe e9 24 ff ff ff e8 dc a7 95 fe 48 8b 3c 24 48 c7 c6 c0 17 e5 8a e8 3c f3 d0 fe <0f> 0b 48 89 ee 48 81 e6 ff 0f 00 00 31 ff e8 99 ab 95 fe 48 89 2c
RSP: 0018:ffffc90002d57cf0 EFLAGS: 00010246
RAX: 9e1ef892bfa7a000 RBX: ffff888056c4fc98 RCX: 9e1ef892bfa7a000
RDX: 0000000000000000 RSI: ffffffff8afe7280 RDI: ffffffff8afe7240
RBP: 000000000000007f R08: ffffffff8f22416f R09: 1ffffffff1e4482d
R10: dffffc0000000000 R11: fffffbfff1e4482e R12: ffff888056c4fcc0
R13: ffffea0001f46234 R14: 1ffff1100ad89f98 R15: 1ffff1100ad89fa5
FS:  0000000000000000(0000) GS:ffff8880b8c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffe593bbd10 CR3: 000000007c289000 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 a6 0b e7 fe e9 24 ff ff ff e8 dc a7 95 fe 48 8b 3c 24 48 c7 c6 c0 17 e5 8a e8 3c f3 d0 fe <0f> 0b 48 89 ee 48 81 e6 ff 0f 00 00 31 ff e8 99 ab 95 fe 48 89 2c
RSP: 0018:ffffc90002d57cf0 EFLAGS: 00010246
RAX: 9e1ef892bfa7a000 RBX: ffff888056c4fc98 RCX: 9e1ef892bfa7a000
RDX: 0000000000000000 RSI: ffffffff8afe7280 RDI: ffffffff8afe7240
RBP: 000000000000007f R08: ffffffff8f22416f R09: 1ffffffff1e4482d
R10: dffffc0000000000 R11: fffffbfff1e4482e R12: ffff888056c4fcc0
R13: ffffea0001f46234 R14: 1ffff1100ad89f98 R15: 1ffff1100ad89fa5
FS:  0000000000000000(0000) GS:ffff8880b8d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f0f9b3d2000 CR3: 000000005b19c000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400