2017/09/13 18:56:36 parsed 1 programs
2017/09/13 18:56:36 executed programs: 0
syzkaller login: [   31.103306] dev_remove_pack: ffff88003c199680 not found
[   31.124729] ==================================================================
[   31.126589] BUG: KASAN: use-after-free in __list_add_valid+0xb1/0xd0
[   31.128173] Read of size 8 at addr ffff88003aaa3570 by task syz-executor3/3146
[   31.129526] 
[   31.129717] CPU: 0 PID: 3146 Comm: syz-executor3 Not tainted 4.13.0-next-20170913+ #3
[   31.130567] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
[   31.131445] Call Trace:
[   31.131726]  dump_stack+0x194/0x257
[   31.132126]  ? arch_local_irq_restore+0x53/0x53
[   31.132607]  ? show_regs_print_info+0x65/0x65
[   31.133069]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   31.133588]  ? __list_add_valid+0xb1/0xd0
[   31.134023]  print_address_description+0x73/0x250
[   31.134528]  ? __list_add_valid+0xb1/0xd0
[   31.134958]  kasan_report+0x24e/0x340
[   31.135370]  __asan_report_load8_noabort+0x14/0x20
[   31.135864]  __list_add_valid+0xb1/0xd0
[   31.136267]  dev_add_pack+0x113/0x2b0
[   31.136650]  ? napi_skb_free_stolen_head+0x170/0x170
[   31.137163]  ? __lockdep_init_map+0xe4/0x650
[   31.137608]  ? lockdep_init_map+0x3d/0x70
[   31.138031]  register_prot_hook.part.49+0x95/0xb0
[   31.138520]  packet_create+0x820/0xb00
[   31.138910]  ? sock_destroy_inode+0x70/0x70
[   31.139346]  ? register_prot_hook.part.49+0xb0/0xb0
[   31.139854]  ? __sock_create+0x211/0x850
[   31.140265]  ? module_unload_free+0x5b0/0x5b0
[   31.140721]  ? lock_release+0xd70/0xd70
[   31.141110]  ? __lock_is_held+0xbc/0x140
[   31.141517]  __sock_create+0x4d4/0x850
[   31.142899]  ? ___sys_recvmsg+0x630/0x630
[   31.143358]  ? __fdget+0x18/0x20
[   31.143694]  ? SyS_futex+0x260/0x390
[   31.144062]  ? SyS_futex+0x269/0x390
[   31.144440]  ? SyS_getsockopt+0x1dd/0x340
[   31.144879]  SyS_socket+0xeb/0x200
[   31.145260]  ? entry_SYSCALL_64_fastpath+0x5/0xbe
[   31.145739]  ? move_addr_to_kernel+0x60/0x60
[   31.146200]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   31.146733]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   31.147221]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   31.147676] RIP: 0033:0x447299
[   31.147998] RSP: 002b:00007fc3397bcc08 EFLAGS: 00000286 ORIG_RAX: 0000000000000029
[   31.148754] RAX: ffffffffffffffda RBX: 0000000000000011 RCX: 0000000000447299
[   31.149489] RDX: 0000000000000300 RSI: 0000000000000802 RDI: 0000000000000011
[   31.150219] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000
[   31.150943] R10: 0000000000000000 R11: 0000000000000286 R12: 00000000ffffffff
[   31.151646] R13: 0000000000000b90 R14: 00000000006e3c50 R15: 0000000000000001
[   31.152361] 
[   31.152526] Allocated by task 3149:
[   31.152883]  save_stack_trace+0x16/0x20
[   31.153281]  save_stack+0x43/0xd0
[   31.153623]  kasan_kmalloc+0xad/0xe0
[   31.153986]  kmem_cache_alloc_trace+0x136/0x750
[   31.154452]  fanout_add+0xa50/0x1190
[   31.154815]  packet_setsockopt+0xfdc/0x1e80
[   31.155234]  SyS_setsockopt+0x189/0x360
[   31.155624]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   31.156086] 
[   31.156251] Freed by task 3136:
[   31.156591]  save_stack_trace+0x16/0x20
[   31.156996]  save_stack+0x43/0xd0
[   31.157347]  kasan_slab_free+0x71/0xc0
[   31.157740]  kfree+0xca/0x250
[   31.158051]  packet_release+0xa8f/0xd70
[   31.158458]  sock_release+0x8d/0x1e0
[   31.158832]  sock_close+0x16/0x20
[   31.159176]  __fput+0x333/0x7f0
[   31.159500]  ____fput+0x15/0x20
[   31.159828]  task_work_run+0x199/0x270
[   31.160214]  do_exit+0xa52/0x1b40
[   31.160564]  do_group_exit+0x149/0x400
[   31.160950]  get_signal+0x7e8/0x17e0
[   31.161315]  do_signal+0x94/0x1ee0
[   31.161667]  exit_to_usermode_loop+0x224/0x300
[   31.162121]  syscall_return_slowpath+0x42f/0x500
[   31.162596]  entry_SYSCALL_64_fastpath+0xbc/0xbe
[   31.163308] 
[   31.163471] The buggy address belongs to the object at ffff88003aaa2cc0
[   31.163471]  which belongs to the cache kmalloc-4096 of size 4096
[   31.164676] The buggy address is located 2224 bytes inside of
[   31.164676]  4096-byte region [ffff88003aaa2cc0, ffff88003aaa3cc0)
[   31.165814] The buggy address belongs to the page:
[   31.166312] page:ffffea0000eaa880 count:1 mapcount:0 mapping:ffff88003aaa2cc0 index:0x0 compound_mapcount: 0
[   31.167283] flags: 0x100000000008100(slab|head)
[   31.167738] raw: 0100000000008100 ffff88003aaa2cc0 0000000000000000 0000000100000001
[   31.168490] raw: ffffea0000eb3320 ffffea0000fa1ca0 ffff88003e800dc0 0000000000000000
[   31.169239] page dumped because: kasan: bad access detected
[   31.169807] 
[   31.169969] Memory state around the buggy address:
[   31.170441]  ffff88003aaa3400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   31.171175]  ffff88003aaa3480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   31.171899] >ffff88003aaa3500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   31.172632]                                                              ^
[   31.173328]  ffff88003aaa3580: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   31.174063]  ffff88003aaa3600: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   31.174877] ==================================================================
[   31.175630] Disabling lock debugging due to kernel taint
[   31.176256] Kernel panic - not syncing: panic_on_warn set ...
[   31.176256] 
[   31.176983] CPU: 0 PID: 3146 Comm: syz-executor3 Tainted: G    B           4.13.0-next-20170913+ #3
[   31.177886] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
[   31.178694] Call Trace:
[   31.178955]  dump_stack+0x194/0x257
[   31.179319]  ? arch_local_irq_restore+0x53/0x53
[   31.179784]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   31.180257]  ? assoc_array_gc+0x13b0/0x13c0
[   31.180685]  panic+0x1e4/0x417
[   31.181003]  ? __warn+0x1d9/0x1d9
[   31.181351]  ? __list_add_valid+0xb1/0xd0
[   31.181763]  kasan_end_report+0x50/0x50
[   31.182163]  kasan_report+0x137/0x340
[   31.182548]  __asan_report_load8_noabort+0x14/0x20
[   31.183042]  __list_add_valid+0xb1/0xd0
[   31.183444]  dev_add_pack+0x113/0x2b0
[   31.183822]  ? napi_skb_free_stolen_head+0x170/0x170
[   31.185328]  ? __lockdep_init_map+0xe4/0x650
[   31.185773]  ? lockdep_init_map+0x3d/0x70
[   31.186213]  register_prot_hook.part.49+0x95/0xb0
[   31.186698]  packet_create+0x820/0xb00
[   31.187094]  ? sock_destroy_inode+0x70/0x70
[   31.187551]  ? register_prot_hook.part.49+0xb0/0xb0
[   31.188068]  ? __sock_create+0x211/0x850
[   31.188476]  ? module_unload_free+0x5b0/0x5b0
[   31.188929]  ? lock_release+0xd70/0xd70
[   31.189333]  ? __lock_is_held+0xbc/0x140
[   31.189742]  __sock_create+0x4d4/0x850
[   31.190128]  ? ___sys_recvmsg+0x630/0x630
[   31.190593]  ? __fdget+0x18/0x20
[   31.190927]  ? SyS_futex+0x260/0x390
[   31.191300]  ? SyS_futex+0x269/0x390
[   31.191672]  ? SyS_getsockopt+0x1dd/0x340
[   31.192086]  SyS_socket+0xeb/0x200
[   31.192439]  ? entry_SYSCALL_64_fastpath+0x5/0xbe
[   31.192918]  ? move_addr_to_kernel+0x60/0x60
[   31.193352]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   31.193846]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   31.194329]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   31.194794] RIP: 0033:0x447299
[   31.195107] RSP: 002b:00007fc3397bcc08 EFLAGS: 00000286 ORIG_RAX: 0000000000000029
[   31.195858] RAX: ffffffffffffffda RBX: 0000000000000011 RCX: 0000000000447299
[   31.196582] RDX: 0000000000000300 RSI: 0000000000000802 RDI: 0000000000000011
[   31.197286] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000
[   31.198000] R10: 0000000000000000 R11: 0000000000000286 R12: 00000000ffffffff
[   31.198716] R13: 0000000000000b90 R14: 00000000006e3c50 R15: 0000000000000001
[   31.199524] Dumping ftrace buffer:
[   31.199875]    (ftrace buffer empty)
[   31.200185] Kernel Offset: disabled
[   31.200422] Rebooting in 86400 seconds..