Warning: Permanently added '10.128.1.33' (ECDSA) to the list of known hosts.
2020/06/19 17:38:15 fuzzer started
2020/06/19 17:38:15 connecting to host at 10.128.0.26:41377
2020/06/19 17:38:15 checking machine...
2020/06/19 17:38:15 checking revisions...
2020/06/19 17:38:15 testing simple program...
[   63.363597][ T6821] IPVS: ftp: loaded support on port[0] = 21
2020/06/19 17:38:16 building call list...
[   63.692957][ T6760] tipc: TX() has been purged, node left!
[   64.195179][ T6760] ==================================================================
[   64.203697][ T6760] BUG: KASAN: use-after-free in afs_wake_up_async_call+0x6aa/0x770
[   64.211627][ T6760] Write of size 1 at addr ffff888099cb11e4 by task kworker/u4:7/6760
[   64.219684][ T6760] 
[   64.222628][ T6760] CPU: 1 PID: 6760 Comm: kworker/u4:7 Not tainted 5.8.0-rc1-syzkaller #0
[   64.231137][ T6760] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   64.241401][ T6760] Workqueue: netns cleanup_net
[   64.246158][ T6760] Call Trace:
[   64.249483][ T6760]  dump_stack+0x18f/0x20d
[   64.253818][ T6760]  ? afs_wake_up_async_call+0x6aa/0x770
[   64.259359][ T6760]  ? afs_wake_up_async_call+0x6aa/0x770
[   64.264910][ T6760]  ? afs_put_call+0xa40/0xa40
[   64.269596][ T6760]  print_address_description.constprop.0.cold+0xd3/0x413
[   64.276622][ T6760]  ? vprintk_func+0x97/0x1a6
[   64.281515][ T6760]  ? afs_wake_up_async_call+0x6aa/0x770
[   64.287059][ T6760]  kasan_report.cold+0x1f/0x37
[   64.292087][ T6760]  ? rcu_read_lock_held_common+0x51/0xa0
[   64.298934][ T6760]  ? afs_wake_up_async_call+0x6aa/0x770
[   64.304488][ T6760]  afs_wake_up_async_call+0x6aa/0x770
[   64.309860][ T6760]  ? afs_close_socket+0x320/0x320
[   64.314979][ T6760]  ? afs_put_call+0xa40/0xa40
[   64.319653][ T6760]  rxrpc_notify_socket+0x1db/0x5d0
[   64.324797][ T6760]  ? afs_put_call+0xa40/0xa40
[   64.329491][ T6760]  __rxrpc_set_call_completion.part.0+0x172/0x410
[   64.336026][ T6760]  rxrpc_call_completed+0xca/0xf0
[   64.341158][ T6760]  rxrpc_discard_prealloc+0x781/0xab0
[   64.347783][ T6760]  ? lock_sock_nested+0x94/0x110
[   64.352747][ T6760]  rxrpc_listen+0x147/0x360
[   64.357266][ T6760]  afs_close_socket+0x95/0x320
[   64.362034][ T6760]  ? afs_purge_servers+0x16d/0x300
[   64.367149][ T6760]  ? afs_rx_discard_new_call+0x50/0x50
[   64.372735][ T6760]  ? init_wait_var_entry+0x200/0x200
[   64.378026][ T6760]  ? rcu_read_lock_held_common+0xa0/0xa0
[   64.383686][ T6760]  ? check_preemption_disabled+0x38/0x220
[   64.389409][ T6760]  afs_net_exit+0x1bc/0x310
[   64.393930][ T6760]  ? afs_net_init+0xe30/0xe30
[   64.398704][ T6760]  ops_exit_list.isra.0+0xa8/0x150
[   64.403832][ T6760]  cleanup_net+0x511/0xa50
[   64.408949][ T6760]  ? unregister_pernet_device+0x70/0x70
[   64.414519][ T6760]  ? rcu_read_lock_any_held.part.0+0x50/0x50
[   64.420518][ T6760]  process_one_work+0x965/0x1690
[   64.425474][ T6760]  ? lock_release+0x800/0x800
[   64.430164][ T6760]  ? pwq_dec_nr_in_flight+0x310/0x310
[   64.435571][ T6760]  ? rwlock_bug.part.0+0x90/0x90
[   64.440628][ T6760]  worker_thread+0x96/0xe10
[   64.445146][ T6760]  ? process_one_work+0x1690/0x1690
[   64.450347][ T6760]  kthread+0x3b5/0x4a0
[   64.454523][ T6760]  ? kthread_mod_delayed_work+0x1a0/0x1a0
[   64.460240][ T6760]  ? kthread_mod_delayed_work+0x1a0/0x1a0
[   64.466310][ T6760]  ret_from_fork+0x1f/0x30
[   64.470746][ T6760] 
[   64.473080][ T6760] Allocated by task 6821:
[   64.477672][ T6760]  save_stack+0x1b/0x40
[   64.481884][ T6760]  __kasan_kmalloc.constprop.0+0xbf/0xd0
[   64.487533][ T6760]  kmem_cache_alloc_trace+0x153/0x7d0
[   64.492940][ T6760]  afs_alloc_call+0x55/0x630
[   64.497535][ T6760]  afs_charge_preallocation+0xe9/0x2d0
[   64.502996][ T6760]  afs_open_socket+0x292/0x360
[   64.507753][ T6760]  afs_net_init+0xa6c/0xe30
[   64.512256][ T6760]  ops_init+0xaf/0x420
[   64.516460][ T6760]  setup_net+0x2de/0x860
[   64.520710][ T6760]  copy_net_ns+0x293/0x590
[   64.525996][ T6760]  create_new_namespaces+0x3fb/0xb30
[   64.531282][ T6760]  unshare_nsproxy_namespaces+0xbd/0x1f0
[   64.536944][ T6760]  ksys_unshare+0x43d/0x8e0
[   64.541444][ T6760]  __ia32_sys_unshare+0x2c/0x40
[   64.547165][ T6760]  do_syscall_32_irqs_on+0x3f/0x60
[   64.552368][ T6760]  do_fast_syscall_32+0x7f/0x120
[   64.557344][ T6760]  entry_SYSENTER_compat+0x6d/0x7c
[   64.562440][ T6760] 
[   64.564837][ T6760] Freed by task 6760:
[   64.568911][ T6760]  save_stack+0x1b/0x40
[   64.573077][ T6760]  __kasan_slab_free+0xf7/0x140
[   64.578018][ T6760]  kfree+0x109/0x2b0
[   64.581913][ T6760]  afs_put_call+0x585/0xa40
[   64.586414][ T6760]  rxrpc_discard_prealloc+0x764/0xab0
[   64.592000][ T6760]  rxrpc_listen+0x147/0x360
[   64.596510][ T6760]  afs_close_socket+0x95/0x320
[   64.601262][ T6760]  afs_net_exit+0x1bc/0x310
[   64.605761][ T6760]  ops_exit_list.isra.0+0xa8/0x150
[   64.610887][ T6760]  cleanup_net+0x511/0xa50
[   64.615300][ T6760]  process_one_work+0x965/0x1690
[   64.620236][ T6760]  worker_thread+0x96/0xe10
[   64.624740][ T6760]  kthread+0x3b5/0x4a0
[   64.628900][ T6760]  ret_from_fork+0x1f/0x30
[   64.633346][ T6760] 
[   64.635689][ T6760] The buggy address belongs to the object at ffff888099cb1000
[   64.635689][ T6760]  which belongs to the cache kmalloc-1k of size 1024
[   64.649903][ T6760] The buggy address is located 484 bytes inside of
[   64.649903][ T6760]  1024-byte region [ffff888099cb1000, ffff888099cb1400)
[   64.663947][ T6760] The buggy address belongs to the page:
[   64.669591][ T6760] page:ffffea0002672c40 refcount:1 mapcount:0 mapping:0000000000000000 index:0x0
[   64.679293][ T6760] flags: 0xfffe0000000200(slab)
[   64.684153][ T6760] raw: 00fffe0000000200 ffffea00027d25c8 ffffea00027a0dc8 ffff8880aa000c40
[   64.692885][ T6760] raw: 0000000000000000 ffff888099cb1000 0000000100000002 0000000000000000
[   64.701707][ T6760] page dumped because: kasan: bad access detected
[   64.708519][ T6760] 
[   64.710871][ T6760] Memory state around the buggy address:
[   64.716627][ T6760]  ffff888099cb1080: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   64.724691][ T6760]  ffff888099cb1100: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   64.732926][ T6760] >ffff888099cb1180: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   64.741009][ T6760]                                                        ^
[   64.748204][ T6760]  ffff888099cb1200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   64.756918][ T6760]  ffff888099cb1280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[   64.764992][ T6760] ==================================================================
[   64.773045][ T6760] Disabling lock debugging due to kernel taint
[   64.779338][ T6760] Kernel panic - not syncing: panic_on_warn set ...
[   64.785933][ T6760] CPU: 1 PID: 6760 Comm: kworker/u4:7 Tainted: G    B             5.8.0-rc1-syzkaller #0
[   64.795822][ T6760] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   64.805973][ T6760] Workqueue: netns cleanup_net
[   64.810734][ T6760] Call Trace:
[   64.814033][ T6760]  dump_stack+0x18f/0x20d
[   64.818388][ T6760]  ? afs_wake_up_async_call+0x670/0x770
[   64.823930][ T6760]  ? afs_put_call+0xa40/0xa40
[   64.828597][ T6760]  panic+0x2e3/0x75c
[   64.832492][ T6760]  ? __warn_printk+0xf3/0xf3
[   64.840543][ T6760]  ? asm_sysvec_apic_timer_interrupt+0x12/0x20
[   64.846825][ T6760]  ? trace_hardirqs_on+0x55/0x220
[   64.852210][ T6760]  ? afs_wake_up_async_call+0x6aa/0x770
[   64.857757][ T6760]  ? afs_wake_up_async_call+0x6aa/0x770
[   64.863309][ T6760]  ? afs_put_call+0xa40/0xa40
[   64.868009][ T6760]  end_report+0x4d/0x53
[   64.872173][ T6760]  kasan_report.cold+0xd/0x37
[   64.876848][ T6760]  ? rcu_read_lock_held_common+0x51/0xa0
[   64.882480][ T6760]  ? afs_wake_up_async_call+0x6aa/0x770
[   64.888137][ T6760]  afs_wake_up_async_call+0x6aa/0x770
[   64.893760][ T6760]  ? afs_close_socket+0x320/0x320
[   64.898775][ T6760]  ? afs_put_call+0xa40/0xa40
[   64.903492][ T6760]  rxrpc_notify_socket+0x1db/0x5d0
[   64.908649][ T6760]  ? afs_put_call+0xa40/0xa40
[   64.913321][ T6760]  __rxrpc_set_call_completion.part.0+0x172/0x410
[   64.919720][ T6760]  rxrpc_call_completed+0xca/0xf0
[   64.924770][ T6760]  rxrpc_discard_prealloc+0x781/0xab0
[   64.932424][ T6760]  ? lock_sock_nested+0x94/0x110
[   64.937608][ T6760]  rxrpc_listen+0x147/0x360
[   64.942165][ T6760]  afs_close_socket+0x95/0x320
[   64.946963][ T6760]  ? afs_purge_servers+0x16d/0x300
[   64.952183][ T6760]  ? afs_rx_discard_new_call+0x50/0x50
[   64.957657][ T6760]  ? init_wait_var_entry+0x200/0x200
[   64.962936][ T6760]  ? rcu_read_lock_held_common+0xa0/0xa0
[   64.968687][ T6760]  ? check_preemption_disabled+0x38/0x220
[   64.974761][ T6760]  afs_net_exit+0x1bc/0x310
[   64.979386][ T6760]  ? afs_net_init+0xe30/0xe30
[   64.984148][ T6760]  ops_exit_list.isra.0+0xa8/0x150
[   64.989525][ T6760]  cleanup_net+0x511/0xa50
[   64.994107][ T6760]  ? unregister_pernet_device+0x70/0x70
[   64.999867][ T6760]  ? rcu_read_lock_any_held.part.0+0x50/0x50
[   65.005876][ T6760]  process_one_work+0x965/0x1690
[   65.011341][ T6760]  ? lock_release+0x800/0x800
[   65.016012][ T6760]  ? pwq_dec_nr_in_flight+0x310/0x310
[   65.021654][ T6760]  ? rwlock_bug.part.0+0x90/0x90
[   65.026608][ T6760]  worker_thread+0x96/0xe10
[   65.031249][ T6760]  ? process_one_work+0x1690/0x1690
[   65.036568][ T6760]  kthread+0x3b5/0x4a0
[   65.040631][ T6760]  ? kthread_mod_delayed_work+0x1a0/0x1a0
[   65.046553][ T6760]  ? kthread_mod_delayed_work+0x1a0/0x1a0
[   65.052625][ T6760]  ret_from_fork+0x1f/0x30
[   65.058644][ T6760] Kernel Offset: disabled
[   65.062975][ T6760] Rebooting in 86400 seconds..