BUG: Bad page state in process jfsCommit pfn:23426 page:ffffea00008d0980 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1c pfn:0x23426 flags: 0xfff1000000820d(locked|referenced|uptodate|workingset|private|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff1000000820d dead000000000100 dead000000000122 0000000000000000 raw: 000000000000001c ffff8880782e2d90 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 9132, tgid 9131 (syz.3.679), ts 485819019860, free_ts 484734399376 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 do_read_cache_folio+0x36c/0x7e0 mm/filemap.c:3753 do_read_cache_page+0x32/0x250 mm/filemap.c:3855 read_mapping_page include/linux/pagemap.h:892 [inline] __get_metapage+0x31a/0xfa0 fs/jfs/jfs_metapage.c:620 diRead+0x6d3/0xb90 fs/jfs/jfs_imap.c:367 jfs_iget+0x8d/0x3c0 fs/jfs/inode.c:35 jfs_fill_super+0x70c/0xac0 fs/jfs/super.c:580 mount_bdev+0x22b/0x2d0 fs/super.c:1643 legacy_get_tree+0xea/0x180 fs/fs_context.c:662 vfs_get_tree+0x8c/0x280 fs/super.c:1764 do_new_mount+0x24b/0xa40 fs/namespace.c:3366 do_mount fs/namespace.c:3706 [inline] __do_sys_mount fs/namespace.c:3915 [inline] __se_sys_mount+0x2da/0x3c0 fs/namespace.c:3892 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_list+0xbe/0x860 mm/page_alloc.c:2475 release_pages+0x1fa0/0x2220 mm/swap.c:1022 __folio_batch_release+0x71/0xe0 mm/swap.c:1042 folio_batch_release include/linux/pagevec.h:83 [inline] truncate_inode_pages_range+0x358/0xf00 mm/truncate.c:371 kill_bdev block/bdev.c:76 [inline] blkdev_flush_mapping+0x132/0x290 block/bdev.c:632 blkdev_put_whole block/bdev.c:663 [inline] blkdev_put+0x498/0x760 block/bdev.c:941 blkdev_release+0x84/0x90 block/fops.c:604 __fput+0x234/0x970 fs/file_table.c:384 __do_sys_close fs/open.c:1571 [inline] __se_sys_close+0x15f/0x220 fs/open.c:1556 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 Modules linked in: CPU: 0 PID: 112 Comm: jfsCommit Not tainted 6.6.98-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 Call Trace: 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 page:ffffea00008d0980 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1c pfn:0x23426 flags: 0xfff1000000820d(locked|referenced|uptodate|workingset|private|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff1000000820d dead000000000100 dead000000000122 0000000000000000 raw: 000000000000001c ffff8880782e2d90 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 9132, tgid 9131 (syz.3.679), ts 485819019860, free_ts 484734399376 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 do_read_cache_folio+0x36c/0x7e0 mm/filemap.c:3753 do_read_cache_page+0x32/0x250 mm/filemap.c:3855 read_mapping_page include/linux/pagemap.h:892 [inline] __get_metapage+0x31a/0xfa0 fs/jfs/jfs_metapage.c:620 diRead+0x6d3/0xb90 fs/jfs/jfs_imap.c:367 jfs_iget+0x8d/0x3c0 fs/jfs/inode.c:35 jfs_fill_super+0x70c/0xac0 fs/jfs/super.c:580 mount_bdev+0x22b/0x2d0 fs/super.c:1643 legacy_get_tree+0xea/0x180 fs/fs_context.c:662 vfs_get_tree+0x8c/0x280 fs/super.c:1764 do_new_mount+0x24b/0xa40 fs/namespace.c:3366 do_mount fs/namespace.c:3706 [inline] __do_sys_mount fs/namespace.c:3915 [inline] __se_sys_mount+0x2da/0x3c0 fs/namespace.c:3892 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_list+0xbe/0x860 mm/page_alloc.c:2475 release_pages+0x1fa0/0x2220 mm/swap.c:1022 __folio_batch_release+0x71/0xe0 mm/swap.c:1042 folio_batch_release include/linux/pagevec.h:83 [inline] truncate_inode_pages_range+0x358/0xf00 mm/truncate.c:371 kill_bdev block/bdev.c:76 [inline] blkdev_flush_mapping+0x132/0x290 block/bdev.c:632 blkdev_put_whole block/bdev.c:663 [inline] blkdev_put+0x498/0x760 block/bdev.c:941 blkdev_release+0x84/0x90 block/fops.c:604 __fput+0x234/0x970 fs/file_table.c:384 __do_sys_close fs/open.c:1571 [inline] __se_sys_close+0x15f/0x220 fs/open.c:1556 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 ------------[ cut here ]------------ kernel BUG at include/linux/mm.h:1447! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 112 Comm: jfsCommit Tainted: G B 6.6.98-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:folio_get include/linux/mm.h:1447 [inline] RIP: 0010:get_page include/linux/mm.h:1453 [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 57 b3 dd fe e9 25 ff ff ff e8 8d 04 85 fe 48 8b 3c 24 48 c7 c6 40 06 e4 8a e8 7d 2e c6 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:ffffc90002d37cc0 EFLAGS: 00010246 RAX: d8e69ffe4f316500 RBX: ffff8880782e2d90 RCX: d8e69ffe4f316500 RDX: 0000000000000000 RSI: ffffffff8afc7860 RDI: ffffffff8afc7820 RBP: 000000000000007f R08: ffffffff8e4a936f R09: 1ffffffff1c9526d R10: dffffc0000000000 R11: fffffbfff1c9526e R12: ffff8880782e2db8 R13: ffffea00008d09b4 R14: 1ffff1100f05c5b7 R15: 1ffff1100f05c5c4 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f07a9d7f2d8 CR3: 000000002de81000 CR4: 00000000003506e0 Call Trace: 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 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:folio_get include/linux/mm.h:1447 [inline] RIP: 0010:get_page include/linux/mm.h:1453 [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 57 b3 dd fe e9 25 ff ff ff e8 8d 04 85 fe 48 8b 3c 24 48 c7 c6 40 06 e4 8a e8 7d 2e c6 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:ffffc90002d37cc0 EFLAGS: 00010246 RAX: d8e69ffe4f316500 RBX: ffff8880782e2d90 RCX: d8e69ffe4f316500 RDX: 0000000000000000 RSI: ffffffff8afc7860 RDI: ffffffff8afc7820 RBP: 000000000000007f R08: ffffffff8e4a936f R09: 1ffffffff1c9526d R10: dffffc0000000000 R11: fffffbfff1c9526e R12: ffff8880782e2db8 R13: ffffea00008d09b4 R14: 1ffff1100f05c5b7 R15: 1ffff1100f05c5c4 FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f07a9d7f2d8 CR3: 000000002de81000 CR4: 00000000003506e0