addrconf_dad_work+0x83c/0x1360 net/ipv6/addrconf.c:4280 process_one_work+0xa0e/0x1980 kernel/workqueue.c:3314 process_scheduled_works kernel/workqueue.c:3397 [inline] worker_thread+0x5ef/0xe50 kernel/workqueue.c:3478 kthread+0x370/0x450 kernel/kthread.c:436 ------------[ cut here ]------------ kernel BUG at mm/filemap.c:859! Oops: invalid opcode: 0000 [#1] SMP KASAN NOPTI CPU: 0 UID: 0 PID: 18097 Comm: syz.0.4219 Tainted: G L syzkaller #0 PREEMPT(full) Tainted: [L]=SOFTLOCKUP 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+0xf81/0x1350 mm/filemap.c:859 Code: d5 9c c3 ff 48 8d 3d ee 15 97 0e 67 48 0f b9 3a e9 07 fd ff ff e8 bf 9c c3 ff 48 c7 c6 60 56 bd 8b 4c 89 ef e8 c0 bb 12 00 90 <0f> 0b 4c 8b 6c 24 60 e8 a3 9c c3 ff 48 c7 84 24 a0 00 00 00 03 00 RSP: 0018:ffffc90005b6f428 EFLAGS: 00010246 RAX: 0000000000080000 RBX: 0000000000000000 RCX: ffffc900321a6000 RDX: 0000000000080000 RSI: ffffffff8257d178 RDI: ffff88802b4bcec4 RBP: 0000000000112cc0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000003 R12: 0000000000000002 R13: ffffea0000d0aac0 R14: 0000000000000000 R15: 1ffff92000b6deb0 FS: 00007f88f5c626c0(0000) GS:ffff8880d636a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f7199cdeff8 CR3: 000000004ca56000 CR4: 0000000000352ef0 Call Trace: filemap_add_folio+0x1d8/0x690 mm/filemap.c:967 ra_alloc_folio mm/readahead.c:456 [inline] page_cache_ra_order+0x614/0xf10 mm/readahead.c:515 do_sync_mmap_readahead mm/filemap.c:3406 [inline] filemap_fault+0x1900/0x2e90 mm/filemap.c:3555 __do_fault+0x10b/0x440 mm/memory.c:5474 do_read_fault mm/memory.c:5909 [inline] do_fault+0xa99/0x1750 mm/memory.c:6043 do_pte_missing mm/memory.c:4566 [inline] handle_pte_fault mm/memory.c:6427 [inline] __handle_mm_fault+0x187d/0x2a00 mm/memory.c:6565 handle_mm_fault+0x36d/0xa20 mm/memory.c:6734 faultin_page mm/gup.c:1126 [inline] __get_user_pages+0x1178/0x32a0 mm/gup.c:1428 __get_user_pages_locked mm/gup.c:1692 [inline] faultin_page_range+0x1f1/0x9e0 mm/gup.c:1912 madvise_populate mm/madvise.c:969 [inline] madvise_do_behavior+0x354/0x510 mm/madvise.c:1927 do_madvise+0x195/0x240 mm/madvise.c:2022 __do_sys_madvise mm/madvise.c:2031 [inline] __se_sys_madvise mm/madvise.c:2029 [inline] __x64_sys_madvise+0xa9/0x110 mm/madvise.c:2029 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x10b/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f88f4d9ce59 Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 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 e8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f88f5c62028 EFLAGS: 00000246 ORIG_RAX: 000000000000001c RAX: ffffffffffffffda RBX: 00007f88f5015fa0 RCX: 00007f88f4d9ce59 RDX: 0000000000000016 RSI: 0000000000800000 RDI: 0000200000800000 RBP: 00007f88f4e32d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f88f5016038 R14: 00007f88f5015fa0 R15: 00007ffd7849c038 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__filemap_add_folio+0xf81/0x1350 mm/filemap.c:859 Code: d5 9c c3 ff 48 8d 3d ee 15 97 0e 67 48 0f b9 3a e9 07 fd ff ff e8 bf 9c c3 ff 48 c7 c6 60 56 bd 8b 4c 89 ef e8 c0 bb 12 00 90 <0f> 0b 4c 8b 6c 24 60 e8 a3 9c c3 ff 48 c7 84 24 a0 00 00 00 03 00 RSP: 0018:ffffc90005b6f428 EFLAGS: 00010246 RAX: 0000000000080000 RBX: 0000000000000000 RCX: ffffc900321a6000 RDX: 0000000000080000 RSI: ffffffff8257d178 RDI: ffff88802b4bcec4 RBP: 0000000000112cc0 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000003 R12: 0000000000000002 R13: ffffea0000d0aac0 R14: 0000000000000000 R15: 1ffff92000b6deb0 FS: 00007f88f5c626c0(0000) GS:ffff8880d636a000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f9ea119ae9c CR3: 000000004ca56000 CR4: 0000000000352ef0