2017/09/04 19:50:05 parsed 1 programs
2017/09/04 19:50:05 executed programs: 0
syzkaller login: [   31.132407] dev_remove_pack: ffff88006c72b300 not found
[   31.189127] ==================================================================
[   31.189721] BUG: KASAN: use-after-free in __list_add_valid+0xb1/0xd0
[   31.190238] Read of size 8 at addr ffff88006c95d330 by task syz-executor0/2999
[   31.190760] 
[   31.190879] CPU: 2 PID: 2999 Comm: syz-executor0 Not tainted 4.13.0-next-20170904+ #14
[   31.191489] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
[   31.192076] Call Trace:
[   31.192276]  dump_stack+0x194/0x257
[   31.192534]  ? arch_local_irq_restore+0x53/0x53
[   31.192858]  ? show_regs_print_info+0x65/0x65
[   31.193189]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   31.193556]  ? __list_add_valid+0xb1/0xd0
[   31.193850]  print_address_description+0x73/0x250
[   31.194212]  ? __list_add_valid+0xb1/0xd0
[   31.194624]  kasan_report+0x24e/0x340
[   31.194893]  __asan_report_load8_noabort+0x14/0x20
[   31.195282]  __list_add_valid+0xb1/0xd0
[   31.195564]  dev_add_pack+0x113/0x2b0
[   31.195833]  ? napi_skb_free_stolen_head+0x170/0x170
[   31.196213]  ? __lockdep_init_map+0xe4/0x650
[   31.196544]  ? lockdep_init_map+0x3d/0x70
[   31.196839]  register_prot_hook.part.49+0x95/0xb0
[   31.197202]  packet_create+0x820/0xb00
[   31.197491]  ? sock_destroy_inode+0x70/0x70
[   31.197796]  ? register_prot_hook.part.49+0xb0/0xb0
[   31.198173]  ? __sock_create+0x211/0x850
[   31.198563]  ? module_unload_free+0x5b0/0x5b0
[   31.198985]  ? lock_release+0xd70/0xd70
[   31.199376]  ? __lock_is_held+0xbc/0x140
[   31.199749]  __sock_create+0x4d4/0x850
[   31.200034]  ? ___sys_recvmsg+0x630/0x630
[   31.200405]  ? __fdget+0x18/0x20
[   31.200679]  ? SyS_futex+0x260/0x390
[   31.201019]  ? SyS_futex+0x269/0x390
[   31.201361]  ? SyS_setsockopt+0x215/0x360
[   31.201743]  SyS_socket+0xeb/0x200
[   31.202067]  ? entry_SYSCALL_64_fastpath+0x5/0xbe
[   31.202509]  ? move_addr_to_kernel+0x60/0x60
[   31.202911]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   31.203413]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   31.203850]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   31.204276] RIP: 0033:0x447299
[   31.204570] RSP: 002b:00007f5c154cdc08 EFLAGS: 00000286 ORIG_RAX: 0000000000000029
[   31.205269] RAX: ffffffffffffffda RBX: 0000000000000011 RCX: 0000000000447299
[   31.205885] RDX: 0000000000000008 RSI: 0000000000080003 RDI: 0000000000000011
[   31.206541] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000
[   31.207183] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000
[   31.207804] R13: 0000000000000000 R14: 00007f5c154ce9c0 R15: 00007f5c154ce700
[   31.208492] 
[   31.208633] Allocated by task 2996:
[   31.208900]  save_stack_trace+0x16/0x20
[   31.209236]  save_stack+0x43/0xd0
[   31.210225]  kasan_kmalloc+0xad/0xe0
[   31.210518]  kmem_cache_alloc_trace+0x136/0x750
[   31.210868]  fanout_add+0xa50/0x1190
[   31.211135]  packet_setsockopt+0xfdc/0x1e80
[   31.211542]  SyS_setsockopt+0x189/0x360
[   31.211939]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   31.212447] 
[   31.212623] Freed by task 2996:
[   31.213008]  save_stack_trace+0x16/0x20
[   31.213783]  save_stack+0x43/0xd0
[   31.214255]  kasan_slab_free+0x71/0xc0
[   31.214603]  kfree+0xca/0x250
[   31.214897]  packet_release+0xa8f/0xd70
[   31.215303]  sock_release+0x8d/0x1e0
[   31.215615]  sock_close+0x16/0x20
[   31.215829]  __fput+0x333/0x7f0
[   31.216037]  ____fput+0x15/0x20
[   31.216232]  task_work_run+0x199/0x270
[   31.216474]  do_exit+0xa52/0x1b40
[   31.216695]  do_group_exit+0x149/0x400
[   31.216927]  get_signal+0x7e8/0x17e0
[   31.217146]  do_signal+0x94/0x1ee0
[   31.217356]  exit_to_usermode_loop+0x224/0x300
[   31.217638]  syscall_return_slowpath+0x42f/0x500
[   31.217917]  entry_SYSCALL_64_fastpath+0xbc/0xbe
[   31.218193] 
[   31.218293] The buggy address belongs to the object at ffff88006c95ca80
[   31.218293]  which belongs to the cache kmalloc-4096 of size 4096
[   31.219047] The buggy address is located 2224 bytes inside of
[   31.219047]  4096-byte region [ffff88006c95ca80, ffff88006c95da80)
[   31.219925] The buggy address belongs to the page:
[   31.220262] page:ffffea0001b25700 count:1 mapcount:0 mapping:ffff88006c95ca80 index:0x0 compound_mapcount: 0
[   31.221233] flags: 0x500000000008100(slab|head)
[   31.221666] raw: 0500000000008100 ffff88006c95ca80 0000000000000000 0000000100000001
[   31.222382] raw: ffffea0001a620a0 ffff88006d800a50 ffff88003e800dc0 0000000000000000
[   31.223167] page dumped because: kasan: bad access detected
[   31.223812] 
[   31.223973] Memory state around the buggy address:
[   31.224412]  ffff88006c95d200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   31.225172]  ffff88006c95d280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   31.225755] >ffff88006c95d300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   31.226441]                                      ^
[   31.226784]  ffff88006c95d380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   31.227347]  ffff88006c95d400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   31.227874] ==================================================================
[   31.228487] Disabling lock debugging due to kernel taint
[   31.229022] Kernel panic - not syncing: panic_on_warn set ...
[   31.229022] 
[   31.229755] CPU: 2 PID: 2999 Comm: syz-executor0 Tainted: G    B           4.13.0-next-20170904+ #14
[   31.230675] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
[   31.231887] Call Trace:
[   31.232081]  dump_stack+0x194/0x257
[   31.232409]  ? arch_local_irq_restore+0x53/0x53
[   31.232731]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   31.233060]  ? __list_add_valid+0x40/0xd0
[   31.233373]  panic+0x1e4/0x417
[   31.233597]  ? __warn+0x1d9/0x1d9
[   31.233841]  ? __list_add_valid+0xb1/0xd0
[   31.234155]  kasan_end_report+0x50/0x50
[   31.234482]  kasan_report+0x137/0x340
[   31.234745]  __asan_report_load8_noabort+0x14/0x20
[   31.235086]  __list_add_valid+0xb1/0xd0
[   31.235453]  dev_add_pack+0x113/0x2b0
[   31.235791]  ? napi_skb_free_stolen_head+0x170/0x170
[   31.236241]  ? __lockdep_init_map+0xe4/0x650
[   31.236734]  ? lockdep_init_map+0x3d/0x70
[   31.237160]  register_prot_hook.part.49+0x95/0xb0
[   31.237611]  packet_create+0x820/0xb00
[   31.237960]  ? sock_destroy_inode+0x70/0x70
[   31.238371]  ? register_prot_hook.part.49+0xb0/0xb0
[   31.238866]  ? __sock_create+0x211/0x850
[   31.239273]  ? module_unload_free+0x5b0/0x5b0
[   31.239673]  ? lock_release+0xd70/0xd70
[   31.240031]  ? __lock_is_held+0xbc/0x140
[   31.240424]  __sock_create+0x4d4/0x850
[   31.240721]  ? ___sys_recvmsg+0x630/0x630
[   31.241022]  ? __fdget+0x18/0x20
[   31.241284]  ? SyS_futex+0x260/0x390
[   31.241594]  ? SyS_futex+0x269/0x390
[   31.241864]  ? SyS_setsockopt+0x215/0x360
[   31.242167]  SyS_socket+0xeb/0x200
[   31.242453]  ? entry_SYSCALL_64_fastpath+0x5/0xbe
[   31.242854]  ? move_addr_to_kernel+0x60/0x60
[   31.243185]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   31.243528]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   31.243857]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   31.244183] RIP: 0033:0x447299
[   31.244403] RSP: 002b:00007f5c154cdc08 EFLAGS: 00000286 ORIG_RAX: 0000000000000029
[   31.244956] RAX: ffffffffffffffda RBX: 0000000000000011 RCX: 0000000000447299
[   31.245447] RDX: 0000000000000008 RSI: 0000000000080003 RDI: 0000000000000011
[   31.245982] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000
[   31.246557] R10: 0000000000000000 R11: 0000000000000286 R12: 0000000000000000
[   31.247131] R13: 0000000000000000 R14: 00007f5c154ce9c0 R15: 00007f5c154ce700
[   31.247808] Dumping ftrace buffer:
[   31.248052]    (ftrace buffer empty)
[   31.248308] Kernel Offset: disabled
[   31.248561] Rebooting in 86400 seconds..