2017/09/11 23:54:29 parsed 1 programs
2017/09/11 23:54:29 executed programs: 0
2017/09/11 23:54:34 executed programs: 75
syzkaller login: [   32.591953] dev_remove_pack: ffff88006b6d5b40 not found
[   32.635459] ==================================================================
[   32.636501] BUG: KASAN: use-after-free in __list_add_valid+0xb1/0xd0
[   32.637360] Read of size 8 at addr ffff88006b2e3470 by task syz-executor0/3235
[   32.638297] 
[   32.638487] CPU: 3 PID: 3235 Comm: syz-executor0 Not tainted 4.13.0-next-20170911+ #1
[   32.640640] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
[   32.641545] Call Trace:
[   32.641843]  dump_stack+0x194/0x257
[   32.642258]  ? arch_local_irq_restore+0x53/0x53
[   32.642804]  ? show_regs_print_info+0x65/0x65
[   32.643459]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   32.644023]  ? __list_add_valid+0xb1/0xd0
[   32.644524]  print_address_description+0x73/0x250
[   32.645094]  ? __list_add_valid+0xb1/0xd0
[   32.645699]  kasan_report+0x24e/0x340
[   32.646238]  __asan_report_load8_noabort+0x14/0x20
[   32.646795]  __list_add_valid+0xb1/0xd0
[   32.647330]  dev_add_pack+0x113/0x2b0
[   32.647709]  ? napi_skb_free_stolen_head+0x170/0x170
[   32.648510]  ? __lockdep_init_map+0xe4/0x650
[   32.649378]  ? lockdep_init_map+0x3d/0x70
[   32.650186]  register_prot_hook.part.49+0x95/0xb0
[   32.651139]  packet_create+0x820/0xb00
[   32.651881]  ? sock_destroy_inode+0x70/0x70
[   32.652707]  ? register_prot_hook.part.49+0xb0/0xb0
[   32.653678]  ? __sock_create+0x211/0x850
[   32.654327]  ? module_unload_free+0x5b0/0x5b0
[   32.655148]  ? lock_release+0xd70/0xd70
[   32.655918]  ? __lock_is_held+0xbc/0x140
[   32.656720]  __sock_create+0x4d4/0x850
[   32.661894]  ? ___sys_recvmsg+0x630/0x630
[   32.662452]  ? __fdget+0x18/0x20
[   32.663160]  ? SyS_futex+0x260/0x390
[   32.663508]  ? SyS_futex+0x269/0x390
[   32.663987]  ? SyS_getsockopt+0x1dd/0x340
[   32.664444]  SyS_socket+0xeb/0x200
[   32.664840]  ? entry_SYSCALL_64_fastpath+0x5/0xbe
[   32.665339]  ? move_addr_to_kernel+0x60/0x60
[   32.665776]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   32.666322]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   32.666842]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   32.667354] RIP: 0033:0x447299
[   32.667650] RSP: 002b:00007f88e7f78c08 EFLAGS: 00000286 ORIG_RAX: 0000000000000029
[   32.668440] RAX: ffffffffffffffda RBX: 0000000000000011 RCX: 0000000000447299
[   32.669218] RDX: 0000000000000300 RSI: 0000000000000802 RDI: 0000000000000011
[   32.669950] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000
[   32.670980] R10: 0000000000000000 R11: 0000000000000286 R12: 00000000ffffffff
[   32.671794] R13: 00000000000014d0 R14: 00000000006e4590 R15: 0000000000000000
[   32.672663] 
[   32.672858] Allocated by task 3232:
[   32.673369]  save_stack_trace+0x16/0x20
[   32.673912]  save_stack+0x43/0xd0
[   32.674414]  kasan_kmalloc+0xad/0xe0
[   32.675075]  kmem_cache_alloc_trace+0x136/0x750
[   32.675508]  fanout_add+0xa50/0x1190
[   32.675794]  packet_setsockopt+0xfdc/0x1e80
[   32.676129]  SyS_setsockopt+0x189/0x360
[   32.676412]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   32.676763] 
[   32.676913] Freed by task 3232:
[   32.677309]  save_stack_trace+0x16/0x20
[   32.677819]  save_stack+0x43/0xd0
[   32.678292]  kasan_slab_free+0x71/0xc0
[   32.678856]  kfree+0xca/0x250
[   32.679364]  packet_release+0xa8f/0xd70
[   32.680032]  sock_release+0x8d/0x1e0
[   32.680438]  sock_close+0x16/0x20
[   32.680814]  __fput+0x333/0x7f0
[   32.682867]  ____fput+0x15/0x20
[   32.683494]  task_work_run+0x199/0x270
[   32.684210]  do_exit+0xa52/0x1b40
[   32.684816]  do_group_exit+0x149/0x400
[   32.685556]  get_signal+0x7e8/0x17e0
[   32.686009]  do_signal+0x94/0x1ee0
[   32.686405]  exit_to_usermode_loop+0x224/0x300
[   32.686822]  syscall_return_slowpath+0x42f/0x500
[   32.687421]  entry_SYSCALL_64_fastpath+0xbc/0xbe
[   32.687852] 
[   32.688015] The buggy address belongs to the object at ffff88006b2e2bc0
[   32.688015]  which belongs to the cache kmalloc-4096 of size 4096
[   32.689527] The buggy address is located 2224 bytes inside of
[   32.689527]  4096-byte region [ffff88006b2e2bc0, ffff88006b2e3bc0)
[   32.691105] The buggy address belongs to the page:
[   32.691577] page:ffffea0001acb880 count:1 mapcount:0 mapping:ffff88006b2e2bc0 index:0x0 compound_mapcount: 0
[   32.692563] flags: 0x500000000008100(slab|head)
[   32.693070] raw: 0500000000008100 ffff88006b2e2bc0 0000000000000000 0000000100000001
[   32.693823] raw: ffffea0001a29320 ffff88006d800a50 ffff88003e800dc0 0000000000000000
[   32.694608] page dumped because: kasan: bad access detected
[   32.695176] 
[   32.695343] Memory state around the buggy address:
[   32.695789]  ffff88006b2e3300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   32.696534]  ffff88006b2e3380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   32.697286] >ffff88006b2e3400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   32.697963]                                                              ^
[   32.698670]  ffff88006b2e3480: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   32.699371]  ffff88006b2e3500: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   32.700090] ==================================================================
[   32.700783] Disabling lock debugging due to kernel taint
[   32.701774] Kernel panic - not syncing: panic_on_warn set ...
[   32.701774] 
[   32.703599] CPU: 3 PID: 3235 Comm: syz-executor0 Tainted: G    B           4.13.0-next-20170911+ #1
[   32.704438] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Bochs 01/01/2011
[   32.705212] Call Trace:
[   32.705468]  dump_stack+0x194/0x257
[   32.705798]  ? arch_local_irq_restore+0x53/0x53
[   32.706240]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   32.706672]  ? assoc_array_gc+0x13a0/0x13c0
[   32.707084]  panic+0x1e4/0x417
[   32.707376]  ? __warn+0x1d9/0x1d9
[   32.707694]  ? __list_add_valid+0xb1/0xd0
[   32.708090]  kasan_end_report+0x50/0x50
[   32.708454]  kasan_report+0x137/0x340
[   32.708802]  __asan_report_load8_noabort+0x14/0x20
[   32.709163]  __list_add_valid+0xb1/0xd0
[   32.709451]  dev_add_pack+0x113/0x2b0
[   32.709713]  ? napi_skb_free_stolen_head+0x170/0x170
[   32.710091]  ? __lockdep_init_map+0xe4/0x650
[   32.710410]  ? lockdep_init_map+0x3d/0x70
[   32.710699]  register_prot_hook.part.49+0x95/0xb0
[   32.711061]  packet_create+0x820/0xb00
[   32.711347]  ? sock_destroy_inode+0x70/0x70
[   32.711693]  ? register_prot_hook.part.49+0xb0/0xb0
[   32.712202]  ? __sock_create+0x211/0x850
[   32.712572]  ? module_unload_free+0x5b0/0x5b0
[   32.713011]  ? lock_release+0xd70/0xd70
[   32.713376]  ? __lock_is_held+0xbc/0x140
[   32.713747]  __sock_create+0x4d4/0x850
[   32.714117]  ? ___sys_recvmsg+0x630/0x630
[   32.714492]  ? __fdget+0x18/0x20
[   32.714797]  ? SyS_futex+0x260/0x390
[   32.715150]  ? SyS_futex+0x269/0x390
[   32.715485]  ? SyS_getsockopt+0x1dd/0x340
[   32.715859]  SyS_socket+0xeb/0x200
[   32.716210]  ? entry_SYSCALL_64_fastpath+0x5/0xbe
[   32.716649]  ? move_addr_to_kernel+0x60/0x60
[   32.717053]  ? trace_hardirqs_on_caller+0x421/0x5c0
[   32.717504]  ? trace_hardirqs_on_thunk+0x1a/0x1c
[   32.717934]  entry_SYSCALL_64_fastpath+0x1f/0xbe
[   32.718360] RIP: 0033:0x447299
[   32.718647] RSP: 002b:00007f88e7f78c08 EFLAGS: 00000286 ORIG_RAX: 0000000000000029
[   32.719334] RAX: ffffffffffffffda RBX: 0000000000000011 RCX: 0000000000447299
[   32.719979] RDX: 0000000000000300 RSI: 0000000000000802 RDI: 0000000000000011
[   32.720633] RBP: 0000000000000082 R08: 0000000000000000 R09: 0000000000000000
[   32.721361] R10: 0000000000000000 R11: 0000000000000286 R12: 00000000ffffffff
[   32.722087] R13: 00000000000014d0 R14: 00000000006e4590 R15: 0000000000000000
[   32.722897] Dumping ftrace buffer:
[   32.723264]    (ftrace buffer empty)
[   32.723651] Kernel Offset: disabled
[   32.724491] Rebooting in 86400 seconds..