syz.0.0 uses obsolete (PF_INET,SOCK_PACKET) page: refcount:2 mapcount:0 mapping:ffff888051970220 index:0x0 pfn:0x4c9a3 memcg:ffff88801c2a8d00 aops:v9fs_addr_operations ino:2 dentry name(?):"/" flags: 0x4fff20000000020(lru|node=1|zone=1|lastcpupid=0x7ff) raw: 04fff20000000020 ffff888030ad09e0 ffff888030ad09e0 ffff888051970220 raw: 0000000000000000 0000000000000000 00000002ffffffff ffff88801c2a8d00 page dumped because: VM_BUG_ON_FOLIO(!folio_test_locked(folio)) page_owner tracks the page as allocated page last allocated via order 0, migratetype Movable, gfp_mask 0x141cca(GFP_HIGHUSER_MOVABLE|__GFP_WRITE|__GFP_COMP), pid 5360, tgid 5359 (syz.0.0), ts 88128808455, free_ts 88112212566 set_page_owner include/linux/page_owner.h:32 [inline] post_alloc_hook+0x240/0x2a0 mm/page_alloc.c:1851 prep_new_page mm/page_alloc.c:1859 [inline] get_page_from_freelist+0x21e4/0x22c0 mm/page_alloc.c:3858 __alloc_frozen_pages_noprof+0x181/0x370 mm/page_alloc.c:5148 alloc_pages_mpol+0x232/0x4a0 mm/mempolicy.c:2416 alloc_frozen_pages_noprof mm/mempolicy.c:2487 [inline] alloc_pages_noprof+0xa9/0x190 mm/mempolicy.c:2507 folio_alloc_noprof+0x1e/0x30 mm/mempolicy.c:2517 filemap_alloc_folio_noprof+0xdf/0x470 mm/filemap.c:1007 __filemap_get_folio+0x3f2/0xaf0 mm/filemap.c:1981 netfs_grab_folio_for_write fs/netfs/buffered_write.c:47 [inline] netfs_perform_write+0x43d/0x1ae0 fs/netfs/buffered_write.c:179 netfs_file_write_iter+0x17d/0x4a0 fs/netfs/buffered_write.c:491 new_sync_write fs/read_write.c:593 [inline] vfs_write+0x5c6/0xb30 fs/read_write.c:686 ksys_write+0x145/0x250 fs/read_write.c:738 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f page last free pid 5365 tgid 5365 stack trace: reset_page_owner include/linux/page_owner.h:25 [inline] free_pages_prepare mm/page_alloc.c:1395 [inline] free_unref_folios+0xdbd/0x1520 mm/page_alloc.c:2952 folios_put_refs+0x559/0x640 mm/swap.c:997 free_pages_and_swap_cache+0x4be/0x520 mm/swap_state.c:267 __tlb_batch_free_encoded_pages mm/mmu_gather.c:136 [inline] tlb_batch_pages_flush mm/mmu_gather.c:149 [inline] tlb_flush_mmu_free mm/mmu_gather.c:397 [inline] tlb_flush_mmu+0x3a0/0x680 mm/mmu_gather.c:404 tlb_finish_mmu+0xc3/0x1d0 mm/mmu_gather.c:497 exit_mmap+0x44c/0xb50 mm/mmap.c:1293 __mmput+0x118/0x430 kernel/fork.c:1129 exit_mm+0x1da/0x2c0 kernel/exit.c:582 do_exit+0x648/0x2300 kernel/exit.c:949 do_group_exit+0x21c/0x2d0 kernel/exit.c:1102 __do_sys_exit_group kernel/exit.c:1113 [inline] __se_sys_exit_group kernel/exit.c:1111 [inline] __x64_sys_exit_group+0x3f/0x40 kernel/exit.c:1111 x64_sys_call+0x21f7/0x2200 arch/x86/include/generated/asm/syscalls_64.h:232 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f ------------[ cut here ]------------ kernel BUG at mm/filemap.c:1498! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 5360 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~bpo12+1 04/01/2014 RIP: 0010:folio_unlock+0x13d/0x160 mm/filemap.c:1498 Code: aa c7 ff 48 89 df 48 c7 c6 80 4d 94 8b e8 6b e8 2f ff 90 0f 0b e8 73 aa c7 ff 48 89 df 48 c7 c6 a0 43 94 8b e8 54 e8 2f ff 90 <0f> 0b e8 5c aa c7 ff 48 89 df 48 c7 c6 80 4d 94 8b e8 3d e8 2f ff RSP: 0018:ffffc9000d30f6e8 EFLAGS: 00010246 RAX: f0859d6ecb13dd00 RBX: ffffea00013268c0 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8d9bc3c7 RDI: 00000000ffffffff RBP: ffffc9000d30faa8 R08: ffffffff8fa3c037 R09: 1ffffffff1f47806 R10: dffffc0000000000 R11: fffffbfff1f47807 R12: 1ffffd4000264d19 R13: 04fff20000000020 R14: ffffea00013268c8 R15: dffffc0000000000 FS: 00007f8f451d76c0(0000) GS:ffff88808d20c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8f44598558 CR3: 0000000043e5f000 CR4: 0000000000352ef0 Call Trace: netfs_perform_write+0x14fc/0x1ae0 fs/netfs/buffered_write.c:407 netfs_file_write_iter+0x17d/0x4a0 fs/netfs/buffered_write.c:491 do_iter_readv_writev+0x61c/0x8b0 fs/read_write.c:-1 vfs_writev+0x31a/0x960 fs/read_write.c:1057 do_pwritev fs/read_write.c:1153 [inline] __do_sys_pwritev2 fs/read_write.c:1211 [inline] __se_sys_pwritev2+0x179/0x290 fs/read_write.c:1202 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f8f4438ebe9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f8f451d7038 EFLAGS: 00000246 ORIG_RAX: 0000000000000148 RAX: ffffffffffffffda RBX: 00007f8f445c5fa0 RCX: 00007f8f4438ebe9 RDX: 0000000000000001 RSI: 0000200000000200 RDI: 0000000000000009 RBP: 00007f8f44411e19 R08: 0000000000000006 R09: 0000000000000000 R10: 0000000000000008 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f8f445c6038 R14: 00007f8f445c5fa0 R15: 00007ffdc9552ef8 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:folio_unlock+0x13d/0x160 mm/filemap.c:1498 Code: aa c7 ff 48 89 df 48 c7 c6 80 4d 94 8b e8 6b e8 2f ff 90 0f 0b e8 73 aa c7 ff 48 89 df 48 c7 c6 a0 43 94 8b e8 54 e8 2f ff 90 <0f> 0b e8 5c aa c7 ff 48 89 df 48 c7 c6 80 4d 94 8b e8 3d e8 2f ff RSP: 0018:ffffc9000d30f6e8 EFLAGS: 00010246 RAX: f0859d6ecb13dd00 RBX: ffffea00013268c0 RCX: 0000000000000000 RDX: 0000000000000007 RSI: ffffffff8d9bc3c7 RDI: 00000000ffffffff RBP: ffffc9000d30faa8 R08: ffffffff8fa3c037 R09: 1ffffffff1f47806 R10: dffffc0000000000 R11: fffffbfff1f47807 R12: 1ffffd4000264d19 R13: 04fff20000000020 R14: ffffea00013268c8 R15: dffffc0000000000 FS: 00007f8f451d76c0(0000) GS:ffff88808d20c000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8f44598558 CR3: 0000000043e5f000 CR4: 0000000000352ef0