BUG: Bad page state in process jfsCommit pfn:792d0 page:ffffea0001e4b400 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1c pfn:0x792d0 flags: 0xfff1000000820d(locked|referenced|uptodate|workingset|private|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff1000000820d dead000000000100 dead000000000122 0000000000000000 raw: 000000000000001c ffff88801cb21ba0 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 6036, tgid 6034 (syz.0.31), ts 83251779334, free_ts 82222582262 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:3371 do_mount fs/namespace.c:3711 [inline] __do_sys_mount fs/namespace.c:3920 [inline] __se_sys_mount+0x2da/0x3c0 fs/namespace.c:3897 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 __slab_free+0x35e/0x410 mm/slub.c:3722 qlink_free mm/kasan/quarantine.c:166 [inline] qlist_free_all+0x75/0xe0 mm/kasan/quarantine.c:185 kasan_quarantine_reduce+0x143/0x160 mm/kasan/quarantine.c:292 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:305 kasan_slab_alloc include/linux/kasan.h:188 [inline] slab_post_alloc_hook+0x6e/0x4d0 mm/slab.h:767 slab_alloc_node mm/slub.c:3485 [inline] kmem_cache_alloc_node+0x150/0x330 mm/slub.c:3530 __alloc_skb+0x108/0x2c0 net/core/skbuff.c:640 alloc_skb include/linux/skbuff.h:1284 [inline] nlmsg_new include/net/netlink.h:999 [inline] inet6_netconf_notify_devconf+0x10f/0x1d0 net/ipv6/addrconf.c:582 __addrconf_sysctl_unregister net/ipv6/addrconf.c:7215 [inline] addrconf_sysctl_unregister net/ipv6/addrconf.c:7239 [inline] addrconf_ifdown+0x1544/0x1880 net/ipv6/addrconf.c:3979 addrconf_notify+0x6c6/0x1010 net/ipv6/addrconf.c:-1 notifier_call_chain+0x197/0x390 kernel/notifier.c:93 call_netdevice_notifiers_extack net/core/dev.c:2064 [inline] call_netdevice_notifiers net/core/dev.c:2078 [inline] unregister_netdevice_many_notify+0xf36/0x1810 net/core/dev.c:11074 unregister_netdevice_many net/core/dev.c:11130 [inline] default_device_exit_batch+0x9cb/0xa60 net/core/dev.c:11608 ops_exit_list net/core/net_namespace.c:178 [inline] cleanup_net+0x77f/0xb90 net/core/net_namespace.c:652 Modules linked in: CPU: 1 PID: 111 Comm: jfsCommit Not tainted 6.6.100-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:ffffea0001e4b400 refcount:0 mapcount:0 mapping:0000000000000000 index:0x1c pfn:0x792d0 flags: 0xfff1000000820d(locked|referenced|uptodate|workingset|private|node=0|zone=1|lastcpupid=0x7ff) page_type: 0xffffffff() raw: 00fff1000000820d dead000000000100 dead000000000122 0000000000000000 raw: 000000000000001c ffff88801cb21ba0 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 6036, tgid 6034 (syz.0.31), ts 83251779334, free_ts 82222582262 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:3371 do_mount fs/namespace.c:3711 [inline] __do_sys_mount fs/namespace.c:3920 [inline] __se_sys_mount+0x2da/0x3c0 fs/namespace.c:3897 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 __slab_free+0x35e/0x410 mm/slub.c:3722 qlink_free mm/kasan/quarantine.c:166 [inline] qlist_free_all+0x75/0xe0 mm/kasan/quarantine.c:185 kasan_quarantine_reduce+0x143/0x160 mm/kasan/quarantine.c:292 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:305 kasan_slab_alloc include/linux/kasan.h:188 [inline] slab_post_alloc_hook+0x6e/0x4d0 mm/slab.h:767 slab_alloc_node mm/slub.c:3485 [inline] kmem_cache_alloc_node+0x150/0x330 mm/slub.c:3530 __alloc_skb+0x108/0x2c0 net/core/skbuff.c:640 alloc_skb include/linux/skbuff.h:1284 [inline] nlmsg_new include/net/netlink.h:999 [inline] inet6_netconf_notify_devconf+0x10f/0x1d0 net/ipv6/addrconf.c:582 __addrconf_sysctl_unregister net/ipv6/addrconf.c:7215 [inline] addrconf_sysctl_unregister net/ipv6/addrconf.c:7239 [inline] addrconf_ifdown+0x1544/0x1880 net/ipv6/addrconf.c:3979 addrconf_notify+0x6c6/0x1010 net/ipv6/addrconf.c:-1 notifier_call_chain+0x197/0x390 kernel/notifier.c:93 call_netdevice_notifiers_extack net/core/dev.c:2064 [inline] call_netdevice_notifiers net/core/dev.c:2078 [inline] unregister_netdevice_many_notify+0xf36/0x1810 net/core/dev.c:11074 unregister_netdevice_many net/core/dev.c:11130 [inline] default_device_exit_batch+0x9cb/0xa60 net/core/dev.c:11608 ops_exit_list net/core/net_namespace.c:178 [inline] cleanup_net+0x77f/0xb90 net/core/net_namespace.c:652 ------------[ cut here ]------------ kernel BUG at include/linux/mm.h:1447! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 111 Comm: jfsCommit Tainted: G B 6.6.100-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 37 ad dd fe e9 25 ff ff ff e8 4d 67 86 fe 48 8b 3c 24 48 c7 c6 80 f4 e3 8a e8 5d 28 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:ffffc90002d17cc0 EFLAGS: 00010246 RAX: 049a2f63391b7a00 RBX: ffff88801cb21ba0 RCX: 049a2f63391b7a00 RDX: 0000000000000000 RSI: ffffffff8afc66e0 RDI: ffffffff8afc66a0 RBP: 000000000000007f R08: ffffffff8e4a7daf R09: 1ffffffff1c94fb5 R10: dffffc0000000000 R11: fffffbfff1c94fb6 R12: ffff88801cb21bc8 R13: ffffea0001e4b434 R14: 1ffff11003964379 R15: 1ffff11003964386 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055fd64b08000 CR3: 000000002ecf8000 CR4: 00000000003506f0 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 37 ad dd fe e9 25 ff ff ff e8 4d 67 86 fe 48 8b 3c 24 48 c7 c6 80 f4 e3 8a e8 5d 28 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:ffffc90002d17cc0 EFLAGS: 00010246 RAX: 049a2f63391b7a00 RBX: ffff88801cb21ba0 RCX: 049a2f63391b7a00 RDX: 0000000000000000 RSI: ffffffff8afc66e0 RDI: ffffffff8afc66a0 RBP: 000000000000007f R08: ffffffff8e4a7daf R09: 1ffffffff1c94fb5 R10: dffffc0000000000 R11: fffffbfff1c94fb6 R12: ffff88801cb21bc8 R13: ffffea0001e4b434 R14: 1ffff11003964379 R15: 1ffff11003964386 FS: 0000000000000000(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055fd64b08000 CR3: 0000000062779000 CR4: 00000000003506f0