2017/09/09 21:54:32 parsed 1 programs
2017/09/09 21:54:32 executed programs: 0
2017/09/09 21:54:37 executed programs: 85
syzkaller login: [   36.809120] dev_remove_pack: ffff88006a0174c0 not found
[   36.860758] ==================================================================
[   36.861346] BUG: KASAN: use-after-free in __list_add_valid+0xb1/0xd0
[   36.861831] Read of size 8 at addr ffff8800698aec30 by task syz-executor0/3396
[   36.862932] 
[   36.863082] CPU: 2 PID: 3396 Comm: syz-executor0 Not tainted 4.13.0-next-20170908+ #18
[   36.863811] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
[   36.864398] Call Trace:
[   36.864592]  dump_stack+0x194/0x257
[   36.864882]  ? arch_local_irq_restore+0x53/0x53
[   36.865314]  ? show_regs_print_info+0x65/0x65
[   36.865741]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   36.866104]  ? __list_add_valid+0xb1/0xd0
[   36.866409]  print_address_description+0x73/0x250
[   36.866745]  ? __list_add_valid+0xb1/0xd0
[   36.867162]  kasan_report+0x24e/0x340
[   36.867557]  __asan_report_load8_noabort+0x14/0x20
[   36.868010]  __list_add_valid+0xb1/0xd0
[   36.868380]  dev_add_pack+0x113/0x2b0
[   36.868732]  ? napi_skb_free_stolen_head+0x170/0x170
[   36.869201]  ? __lockdep_init_map+0xe4/0x650
[   36.869611]  ? lockdep_init_map+0x3d/0x70
[   36.870002]  register_prot_hook.part.49+0x95/0xb0
[   36.870449]  packet_create+0x820/0xb00
[   36.870799]  ? sock_destroy_inode+0x70/0x70
[   36.871187]  ? register_prot_hook.part.49+0xb0/0xb0
[   36.871638]  ? __sock_create+0x211/0x850
[   36.872004]  ? module_unload_free+0x5b0/0x5b0
[   36.872408]  ? lock_release+0xd70/0xd70
[   36.872768]  ? __lock_is_held+0xbc/0x140
[   36.873142]  __sock_create+0x4d4/0x850
[   36.873495]  ? ___sys_recvmsg+0x630/0x630
[   36.873867]  ? __fdget+0x18/0x20
[   36.874174]  ? SyS_futex+0x260/0x390
[   36.874517]  ? SyS_futex+0x269/0x390
[   36.874886]  ? SyS_getsockopt+0x1dd/0x340
[   36.875272]  SyS_socket+0xeb/0x200
[   36.875598]  ? entry_SYSCALL_64_fastpath+0x5/0xbe
[   36.876044]  ? move_addr_to_kernel+0x60/0x60
[   36.876449]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   36.876965]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   36.877407]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   36.877843] RIP: 0033:0x447299
[   36.878138] RSP: 002b:00007f4b9facfc08 EFLAGS: 00000286 ORIG_RAX: 0000000000000029
[   36.878847] RAX: ffffffffffffffda RBX: 0000000000000011 RCX: 0000000000447299
[   36.879505] RDX: 0000000000000300 RSI: 0000000000000802 RDI: 0000000000000011
[   36.880190] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000
[   36.880850] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000
[   36.881511] R13: 0000000000000000 R14: 00007f4b9fad09c0 R15: 00007f4b9fad0700
[   36.882176] 
[   36.882335] Allocated by task 3393:
[   36.882667]  save_stack_trace+0x16/0x20
[   36.883033]  save_stack+0x43/0xd0
[   36.883350]  kasan_kmalloc+0xad/0xe0
[   36.883695]  kmem_cache_alloc_trace+0x136/0x750
[   36.884382]  fanout_add+0xa50/0x1190
[   36.884657]  packet_setsockopt+0xfdc/0x1e80
[   36.885018]  SyS_setsockopt+0x189/0x360
[   36.885304]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   36.885644] 
[   36.885774] Freed by task 3393:
[   36.886002]  save_stack_trace+0x16/0x20
[   36.886269]  save_stack+0x43/0xd0
[   36.886511]  kasan_slab_free+0x71/0xc0
[   36.886786]  kfree+0xca/0x250
[   36.886999]  packet_release+0xa8f/0xd70
[   36.887300]  sock_release+0x8d/0x1e0
[   36.887550]  sock_close+0x16/0x20
[   36.887799]  __fput+0x333/0x7f0
[   36.888024]  ____fput+0x15/0x20
[   36.888252]  task_work_run+0x199/0x270
[   36.888512]  do_exit+0xa52/0x1b40
[   36.888753]  do_group_exit+0x149/0x400
[   36.889052]  get_signal+0x7e8/0x17e0
[   36.889306]  do_signal+0x94/0x1ee0
[   36.889548]  exit_to_usermode_loop+0x224/0x300
[   36.889872]  syscall_return_slowpath+0x42f/0x500
[   36.890194]  entry_SYSCALL_64_fastpath+0xbc/0xbe
[   36.890517] 
[   36.890632] The buggy address belongs to the object at ffff8800698ae380
[   36.890632]  which belongs to the cache kmalloc-4096 of size 4096
[   36.891500] The buggy address is located 2224 bytes inside of
[   36.891500]  4096-byte region [ffff8800698ae380, ffff8800698af380)
[   36.892340] The buggy address belongs to the page:
[   36.892675] page:ffffea0001a62b80 count:1 mapcount:0 mapping:ffff8800698ae380 index:0x0 compound_mapcount: 0
[   36.893393] flags: 0x500000000008100(slab|head)
[   36.893714] raw: 0500000000008100 ffff8800698ae380 0000000000000000 0000000100000001
[   36.894261] raw: ffffea0001a99c20 ffff88006d800a50 ffff88003e800dc0 0000000000000000
[   36.894811] page dumped because: kasan: bad access detected
[   36.895190] 
[   36.895304] Memory state around the buggy address:
[   36.895635]  ffff8800698aeb00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   36.896142]  ffff8800698aeb80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   36.896635] >ffff8800698aec00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   36.897158]                                      ^
[   36.897490]  ffff8800698aec80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   36.897987]  ffff8800698aed00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   36.898495] ==================================================================
[   36.898986] Disabling lock debugging due to kernel taint
[   36.899368] Kernel panic - not syncing: panic_on_warn set ...
[   36.899368] 
[   36.899862] CPU: 2 PID: 3396 Comm: syz-executor0 Tainted: G    B           4.13.0-next-20170908+ #18
[   36.900484] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
[   36.901075] Call Trace:
[   36.901255]  dump_stack+0x194/0x257
[   36.901491]  ? arch_local_irq_restore+0x53/0x53
[   36.901819]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   36.902144]  ? assoc_array_gc+0x13a0/0x13c0
[   36.902437]  panic+0x1e4/0x417
[   36.902648]  ? __warn+0x1d9/0x1d9
[   36.902901]  ? __list_add_valid+0xb1/0xd0
[   36.903176]  kasan_end_report+0x50/0x50
[   36.903440]  kasan_report+0x137/0x340
[   36.903781]  __asan_report_load8_noabort+0x14/0x20
[   36.904120]  __list_add_valid+0xb1/0xd0
[   36.904391]  dev_add_pack+0x113/0x2b0
[   36.904651]  ? napi_skb_free_stolen_head+0x170/0x170
[   36.905341]  ? __lockdep_init_map+0xe4/0x650
[   36.905630]  ? lockdep_init_map+0x3d/0x70
[   36.905921]  register_prot_hook.part.49+0x95/0xb0
[   36.906238]  packet_create+0x820/0xb00
[   36.906508]  ? sock_destroy_inode+0x70/0x70
[   36.906809]  ? register_prot_hook.part.49+0xb0/0xb0
[   36.907135]  ? __sock_create+0x211/0x850
[   36.907507]  ? module_unload_free+0x5b0/0x5b0
[   36.907830]  ? lock_release+0xd70/0xd70
[   36.908096]  ? __lock_is_held+0xbc/0x140
[   36.908371]  __sock_create+0x4d4/0x850
[   36.908632]  ? ___sys_recvmsg+0x630/0x630
[   36.908950]  ? __fdget+0x18/0x20
[   36.909176]  ? SyS_futex+0x260/0x390
[   36.909416]  ? SyS_futex+0x269/0x390
[   36.909661]  ? SyS_getsockopt+0x1dd/0x340
[   36.909951]  SyS_socket+0xeb/0x200
[   36.910188]  ? entry_SYSCALL_64_fastpath+0x5/0xbe
[   36.910516]  ? move_addr_to_kernel+0x60/0x60
[   36.910820]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   36.911155]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   36.911472]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   36.911797] RIP: 0033:0x447299
[   36.912009] RSP: 002b:00007f4b9facfc08 EFLAGS: 00000286 ORIG_RAX: 0000000000000029
[   36.912512] RAX: ffffffffffffffda RBX: 0000000000000011 RCX: 0000000000447299
[   36.913169] RDX: 0000000000000300 RSI: 0000000000000802 RDI: 0000000000000011
[   36.913644] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000
[   36.914131] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000
[   36.914628] R13: 0000000000000000 R14: 00007f4b9fad09c0 R15: 00007f4b9fad0700
[   36.915169] Dumping ftrace buffer:
[   36.915423]    (ftrace buffer empty)
[   36.915688] Kernel Offset: disabled
[   36.915962] Rebooting in 86400 seconds..