page: refcount:1 mapcount:0 mapping:0000000000000000 index:0xffff8880125aec00 pfn:0x125ae memcg:ffff888012e79300 flags: 0xfff00000000001(locked|node=0|zone=1|lastcpupid=0x7ff) raw: 00fff00000000001 0000000000000000 dead000000000122 0000000000000000 raw: ffff8880125aec00 0000000000000000 00000001ffffffff ffff888012e79300 page dumped because: VM_BUG_ON_FOLIO(folio_order(folio) < mapping_min_folio_order(mapping)) page_owner tracks the page as allocated page last allocated via order 0, migratetype Unmovable, gfp_mask 0x152c40(GFP_NOFS|__GFP_NOWARN|__GFP_NORETRY|__GFP_COMP|__GFP_HARDWALL), pid 5329, tgid 5329 (syz.0.0), ts 94576460948, free_ts 94564233678 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x1f9/0x250 mm/page_alloc.c:1859 prep_new_page mm/page_alloc.c:1867 [inline] get_page_from_freelist+0x21fa/0x2270 mm/page_alloc.c:3946 __alloc_frozen_pages_noprof+0x18d/0x380 mm/page_alloc.c:5304 alloc_pages_mpol+0x212/0x380 mm/mempolicy.c:2490 alloc_frozen_pages_noprof mm/mempolicy.c:2561 [inline] alloc_pages_noprof+0xac/0x2a0 mm/mempolicy.c:2581 folio_alloc_noprof+0x1e/0x30 mm/mempolicy.c:2591 filemap_alloc_folio_noprof+0x111/0x470 mm/filemap.c:1013 ractl_alloc_folio mm/readahead.c:200 [inline] ra_alloc_folio mm/readahead.c:463 [inline] page_cache_ra_order+0x569/0xee0 mm/readahead.c:535 do_sync_mmap_readahead+0x75e/0x990 mm/filemap.c:3428 filemap_fault+0x7d9/0x13b0 mm/filemap.c:3582 __do_fault+0x138/0x2a0 mm/memory.c:5425 do_shared_fault mm/memory.c:5924 [inline] do_fault mm/memory.c:5998 [inline] do_pte_missing+0x684/0x34b0 mm/memory.c:4566 handle_pte_fault mm/memory.c:6379 [inline] __handle_mm_fault mm/memory.c:6517 [inline] handle_mm_fault+0x1b36/0x3080 mm/memory.c:6686 do_user_addr_fault+0xa4d/0x1340 arch/x86/mm/fault.c:1343 handle_page_fault arch/x86/mm/fault.c:1483 [inline] exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595 page last free pid 5312 tgid 5312 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1406 [inline] __free_frozen_pages+0xc1e/0xd10 mm/page_alloc.c:2950 __slab_free+0x274/0x2c0 mm/slub.c:5767 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4612 [inline] slab_alloc_node mm/slub.c:4945 [inline] kmem_cache_alloc_node_noprof+0x355/0x610 mm/slub.c:5017 __alloc_skb+0x1d7/0x7a0 net/core/skbuff.c:704 alloc_skb include/linux/skbuff.h:1384 [inline] mld_newpack+0x165/0xcb0 net/ipv6/mcast.c:1789 add_grhead net/ipv6/mcast.c:1900 [inline] add_grec+0x119f/0x19d0 net/ipv6/mcast.c:2039 mld_send_initial_cr+0x288/0x550 net/ipv6/mcast.c:2284 mld_dad_work+0x3d/0x480 net/ipv6/mcast.c:2310 process_one_work kernel/workqueue.c:3322 [inline] process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405 worker_thread+0xa47/0xfb0 kernel/workqueue.c:3486 kthread+0x388/0x470 kernel/kthread.c:436 ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245 ------------[ cut here ]------------ kernel BUG at mm/filemap.c:859! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5329 Comm: syz.0.0 Not tainted syzkaller #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2 04/01/2014 RIP: 0010:__filemap_add_folio+0x11ee/0x1360 mm/filemap.c:858 Code: ff 4c 89 f7 48 c7 c6 60 0c f8 8b e8 5c 47 21 ff 90 0f 0b e8 64 aa bf ff 48 8b 7c 24 08 48 c7 c6 20 01 f8 8b e8 43 47 21 ff 90 <0f> 0b e8 4b aa bf ff 4c 89 f7 48 c7 c6 60 0c f8 8b e8 2c 47 21 ff RSP: 0018:ffffc9000e5075c0 EFLAGS: 00010246 RAX: 915b726a07e61700 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8e22ed08 RDI: 00000000ffffffff RBP: ffffc9000e507740 R08: ffffffff9057b0f7 R09: 1ffffffff20af61e R10: dffffc0000000000 R11: fffffbfff20af61f R12: dffffc0000000000 R13: ffff8880325908c0 R14: 0000000000000002 R15: ffff8880325909d8 FS: 000055556db4f540(0000) GS:ffff88808c546000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2bac025fa0 CR3: 00000000122a4000 CR4: 0000000000352ef0 Call Trace: filemap_add_folio+0x25e/0x530 mm/filemap.c:966 ra_alloc_folio mm/readahead.c:470 [inline] page_cache_ra_order+0x6d1/0xee0 mm/readahead.c:535 do_sync_mmap_readahead+0x75e/0x990 mm/filemap.c:3428 filemap_fault+0x7d9/0x13b0 mm/filemap.c:3582 __do_fault+0x138/0x2a0 mm/memory.c:5425 do_shared_fault mm/memory.c:5924 [inline] do_fault mm/memory.c:5998 [inline] do_pte_missing+0x684/0x34b0 mm/memory.c:4566 handle_pte_fault mm/memory.c:6379 [inline] __handle_mm_fault mm/memory.c:6517 [inline] handle_mm_fault+0x1b36/0x3080 mm/memory.c:6686 do_user_addr_fault+0xa4d/0x1340 arch/x86/mm/fault.c:1343 handle_page_fault arch/x86/mm/fault.c:1483 [inline] exc_page_fault+0x6a/0xc0 arch/x86/mm/fault.c:1536 asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:595 RIP: 0033:0x7f2babd6e4b0 Code: fa 08 73 36 48 83 ea 04 73 e0 83 fa fd 7c 10 8a 0e 74 0a 0f b7 74 16 02 66 89 74 17 02 88 0f c3 c5 fa 6f 06 c5 fa 6f 4c 16 f0 fa 7f 07 c5 fa 7f 4c 17 f0 c3 0f 1f 44 00 00 48 8b 4c 16 f8 48 RSP: 002b:00007ffe166b7258 EFLAGS: 00010206 RAX: 0000200000000000 RBX: 0000000000000004 RCX: 000000000000003f RDX: 000000000000001c RSI: 00007f2bab7ff586 RDI: 0000200000000000 RBP: fffffffffffffffe R08: 00007f2babbff02c R09: 0000000000000001 R10: 7fffffffffffffe3 R11: 0000000000000009 R12: 00007ffe166b7380 R13: 00007f2bac02609c R14: 0000000000016e84 R15: 00007ffe166b7360 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__filemap_add_folio+0x11ee/0x1360 mm/filemap.c:858 Code: ff 4c 89 f7 48 c7 c6 60 0c f8 8b e8 5c 47 21 ff 90 0f 0b e8 64 aa bf ff 48 8b 7c 24 08 48 c7 c6 20 01 f8 8b e8 43 47 21 ff 90 <0f> 0b e8 4b aa bf ff 4c 89 f7 48 c7 c6 60 0c f8 8b e8 2c 47 21 ff RSP: 0018:ffffc9000e5075c0 EFLAGS: 00010246 RAX: 915b726a07e61700 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8e22ed08 RDI: 00000000ffffffff RBP: ffffc9000e507740 R08: ffffffff9057b0f7 R09: 1ffffffff20af61e R10: dffffc0000000000 R11: fffffbfff20af61f R12: dffffc0000000000 R13: ffff8880325908c0 R14: 0000000000000002 R15: ffff8880325909d8 FS: 000055556db4f540(0000) GS:ffff88808c546000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f2bac025fa0 CR3: 00000000122a4000 CR4: 0000000000352ef0