2017/09/13 13:40:52 parsed 1 programs
2017/09/13 13:40:52 executed programs: 0
syzkaller login: [   27.497147] dev_remove_pack: ffff88006a21de80 not found
[   27.542726] ==================================================================
[   27.543854] BUG: KASAN: use-after-free in __list_add_valid+0xb1/0xd0
[   27.544424] Read of size 8 at addr ffff880069d28ff0 by task syz-executor0/3065
[   27.544977] 
[   27.545141] CPU: 0 PID: 3065 Comm: syz-executor0 Not tainted 4.13.0-next-20170913+ #3
[   27.545915] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
[   27.546719] Call Trace:
[   27.546966]  dump_stack+0x194/0x257
[   27.547331]  ? arch_local_irq_restore+0x53/0x53
[   27.547784]  ? show_regs_print_info+0x65/0x65
[   27.548223]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   27.548696]  ? __list_add_valid+0xb1/0xd0
[   27.549107]  print_address_description+0x73/0x250
[   27.549577]  ? __list_add_valid+0xb1/0xd0
[   27.549959]  kasan_report+0x24e/0x340
[   27.550341]  __asan_report_load8_noabort+0x14/0x20
[   27.550832]  __list_add_valid+0xb1/0xd0
[   27.551244]  dev_add_pack+0x113/0x2b0
[   27.551609]  ? napi_skb_free_stolen_head+0x170/0x170
[   27.552087]  ? __lockdep_init_map+0xe4/0x650
[   27.552538]  ? lockdep_init_map+0x3d/0x70
[   27.552910]  register_prot_hook.part.49+0x95/0xb0
[   27.553393]  packet_create+0x820/0xb00
[   27.553766]  ? sock_destroy_inode+0x70/0x70
[   27.554207]  ? register_prot_hook.part.49+0xb0/0xb0
[   27.554714]  ? __sock_create+0x211/0x850
[   27.555094]  ? module_unload_free+0x5b0/0x5b0
[   27.555524]  ? lock_release+0xd70/0xd70
[   27.555893]  ? __lock_is_held+0xbc/0x140
[   27.556293]  __sock_create+0x4d4/0x850
[   27.556698]  ? ___sys_recvmsg+0x630/0x630
[   27.557083]  ? __fdget+0x18/0x20
[   27.557428]  ? SyS_futex+0x260/0x390
[   27.557783]  ? SyS_futex+0x269/0x390
[   27.558181]  ? SyS_setsockopt+0x215/0x360
[   27.558596]  SyS_socket+0xeb/0x200
[   27.558958]  ? entry_SYSCALL_64_fastpath+0x5/0xbe
[   27.559417]  ? move_addr_to_kernel+0x60/0x60
[   27.559849]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   27.560326]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   27.560796]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   27.561283] RIP: 0033:0x447299
[   27.561564] RSP: 002b:00007f0adb911c08 EFLAGS: 00000286 ORIG_RAX: 0000000000000029
[   27.562310] RAX: ffffffffffffffda RBX: 0000000000000011 RCX: 0000000000447299
[   27.563015] RDX: 0000000000000008 RSI: 0000000000080003 RDI: 0000000000000011
[   27.563816] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000
[   27.564512] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000
[   27.565408] R13: 0000000000000000 R14: 00007f0adb9129c0 R15: 00007f0adb912700
[   27.566179] 
[   27.566345] Allocated by task 3062:
[   27.566823]  save_stack_trace+0x16/0x20
[   27.567236]  save_stack+0x43/0xd0
[   27.567615]  kasan_kmalloc+0xad/0xe0
[   27.568017]  kmem_cache_alloc_trace+0x136/0x750
[   27.568479]  fanout_add+0xa50/0x1190
[   27.568815]  packet_setsockopt+0xfdc/0x1e80
[   27.569208]  SyS_setsockopt+0x189/0x360
[   27.569607]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   27.570062] 
[   27.570251] Freed by task 3063:
[   27.570575]  save_stack_trace+0x16/0x20
[   27.570935]  save_stack+0x43/0xd0
[   27.571246]  kasan_slab_free+0x71/0xc0
[   27.571646]  kfree+0xca/0x250
[   27.571965]  packet_release+0xa8f/0xd70
[   27.572365]  sock_release+0x8d/0x1e0
[   27.572741]  sock_close+0x16/0x20
[   27.573107]  __fput+0x333/0x7f0
[   27.573418]  ____fput+0x15/0x20
[   27.573717]  task_work_run+0x199/0x270
[   27.574123]  do_exit+0xa52/0x1b40
[   27.574488]  do_group_exit+0x149/0x400
[   27.574869]  get_signal+0x7e8/0x17e0
[   27.575206]  do_signal+0x94/0x1ee0
[   27.575528]  exit_to_usermode_loop+0x224/0x300
[   27.575981]  syscall_return_slowpath+0x42f/0x500
[   27.576477]  entry_SYSCALL_64_fastpath+0xbc/0xbe
[   27.576905] 
[   27.577069] The buggy address belongs to the object at ffff880069d28740
[   27.577069]  which belongs to the cache kmalloc-4096 of size 4096
[   27.578385] The buggy address is located 2224 bytes inside of
[   27.578385]  4096-byte region [ffff880069d28740, ffff880069d29740)
[   27.579271] The buggy address belongs to the page:
[   27.579608] page:ffffea0001a74a00 count:1 mapcount:0 mapping:ffff880069d28740 index:0x0 compound_mapcount: 0
[   27.580259] flags: 0x500000000008100(slab|head)
[   27.580583] raw: 0500000000008100 ffff880069d28740 0000000000000000 0000000100000001
[   27.581214] raw: ffffea0001ac00a0 ffff88006d800a50 ffff88003e800dc0 0000000000000000
[   27.582036] page dumped because: kasan: bad access detected
[   27.582612] 
[   27.582790] Memory state around the buggy address:
[   27.583262]  ffff880069d28e80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   27.583990]  ffff880069d28f00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   27.584677] >ffff880069d28f80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   27.585391]                                                              ^
[   27.586018]  ffff880069d29000: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   27.586905]  ffff880069d29080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   27.587564] ==================================================================
[   27.588163] Disabling lock debugging due to kernel taint
[   27.588560] Kernel panic - not syncing: panic_on_warn set ...
[   27.588560] 
[   27.589082] CPU: 0 PID: 3065 Comm: syz-executor0 Tainted: G    B           4.13.0-next-20170913+ #3
[   27.589907] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
[   27.590666] Call Trace:
[   27.590915]  dump_stack+0x194/0x257
[   27.591244]  ? arch_local_irq_restore+0x53/0x53
[   27.591666]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   27.592094]  ? assoc_array_gc+0x13b0/0x13c0
[   27.592482]  panic+0x1e4/0x417
[   27.592769]  ? __warn+0x1d9/0x1d9
[   27.593086]  ? __list_add_valid+0xb1/0xd0
[   27.593458]  kasan_end_report+0x50/0x50
[   27.593815]  kasan_report+0x137/0x340
[   27.594157]  __asan_report_load8_noabort+0x14/0x20
[   27.594600]  __list_add_valid+0xb1/0xd0
[   27.594876]  dev_add_pack+0x113/0x2b0
[   27.595142]  ? napi_skb_free_stolen_head+0x170/0x170
[   27.595494]  ? __lockdep_init_map+0xe4/0x650
[   27.595800]  ? lockdep_init_map+0x3d/0x70
[   27.596090]  register_prot_hook.part.49+0x95/0xb0
[   27.596424]  packet_create+0x820/0xb00
[   27.596692]  ? sock_destroy_inode+0x70/0x70
[   27.596991]  ? register_prot_hook.part.49+0xb0/0xb0
[   27.597337]  ? __sock_create+0x211/0x850
[   27.597618]  ? module_unload_free+0x5b0/0x5b0
[   27.597928]  ? lock_release+0xd70/0xd70
[   27.598205]  ? __lock_is_held+0xbc/0x140
[   27.598488]  __sock_create+0x4d4/0x850
[   27.598761]  ? ___sys_recvmsg+0x630/0x630
[   27.599048]  ? __fdget+0x18/0x20
[   27.599283]  ? SyS_futex+0x260/0x390
[   27.599537]  ? SyS_futex+0x269/0x390
[   27.599792]  ? SyS_setsockopt+0x215/0x360
[   27.600079]  SyS_socket+0xeb/0x200
[   27.600325]  ? entry_SYSCALL_64_fastpath+0x5/0xbe
[   27.600660]  ? move_addr_to_kernel+0x60/0x60
[   27.600963]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   27.601310]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   27.601638]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   27.601971] RIP: 0033:0x447299
[   27.602192] RSP: 002b:00007f0adb911c08 EFLAGS: 00000286 ORIG_RAX: 0000000000000029
[   27.602719] RAX: ffffffffffffffda RBX: 0000000000000011 RCX: 0000000000447299
[   27.603218] RDX: 0000000000000008 RSI: 0000000000080003 RDI: 0000000000000011
[   27.603712] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000
[   27.604206] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000
[   27.604700] R13: 0000000000000000 R14: 00007f0adb9129c0 R15: 00007f0adb912700
[   27.605441] Dumping ftrace buffer:
[   27.605725]    (ftrace buffer empty)
[   27.606009] Kernel Offset: disabled
[   27.606276] Rebooting in 86400 seconds..