Warning: Permanently added '10.128.0.82' (ECDSA) to the list of known hosts.
2021/01/02 18:13:15 fuzzer started
2021/01/02 18:13:16 dialing manager at 10.128.0.105:34641
2021/01/02 18:13:16 syscalls: 3466
2021/01/02 18:13:16 code coverage: enabled
2021/01/02 18:13:16 comparison tracing: enabled
2021/01/02 18:13:16 extra coverage: enabled
2021/01/02 18:13:16 setuid sandbox: enabled
2021/01/02 18:13:16 namespace sandbox: enabled
2021/01/02 18:13:16 Android sandbox: /sys/fs/selinux/policy does not exist
2021/01/02 18:13:16 fault injection: enabled
2021/01/02 18:13:16 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2021/01/02 18:13:16 net packet injection: enabled
2021/01/02 18:13:16 net device setup: enabled
2021/01/02 18:13:16 concurrency sanitizer: enabled
2021/01/02 18:13:16 devlink PCI setup: PCI device 0000:00:10.0 is not available
2021/01/02 18:13:16 USB emulation: enabled
2021/01/02 18:13:16 hci packet injection: enabled
2021/01/02 18:13:16 wifi device emulation: enabled
2021/01/02 18:13:22 suppressing KCSAN reports in functions: 'complete_signal' 'blk_mq_dispatch_rq_list' '__add_to_page_cache_locked' 'wg_packet_decrypt_worker' '__io_cqring_fill_event' '__blk_mq_sched_dispatch_requests' '__writeback_single_inode' 'blk_mq_sched_dispatch_requests' 'futex_wait_queue_me' 'drop_nlink' 'yama_task_free' '__neigh_event_send' 'dput' 'audit_log_start' 'shmem_unlink' '__pagevec_lru_add' 'xas_clear_mark' 'do_nanosleep' '__ext4_new_inode' '__xa_clear_mark' 'do_select' 'shmem_mknod' 'filemap_map_pages' 'shmem_add_to_page_cache' '_prb_read_valid' 'compact_zone' 'blk_mq_request_bypass_insert' 'khugepaged' 'xas_find_marked' 'exit_mm' 'mm_update_next_owner' 'step_into' 'dd_has_work' 'bpf_lru_pop_free' 'vfs_readlink' 'netlink_getname' 'data_alloc' 'wbt_done' 'do_signal_stop' 'n_tty_receive_buf_common' '__send_signal' 'ext4_mark_iloc_dirty' '__process_echoes' 'generic_write_end' '__delete_from_page_cache' 'shmem_file_read_iter' 'ext4_setattr' 'tick_sched_timer' '__fsnotify_parent' 'kauditd_thread' 'ext4_mb_regular_allocator' 'ext4_free_inode' 'ext4_mb_good_group' 'pcpu_alloc' 'ext4_ext_try_to_merge_right' 'alloc_pid' 'tick_nohz_stop_tick' 'ext4_free_inodes_count' 'compaction_alloc' 'wbt_issue' 'file_remove_privs' 'ext4_writepages' '__filemap_fdatawrite_range' 'ext4_handle_inode_extension' 'ondemand_readahead' 'do_sys_poll' 'find_get_pages_range_tag' 'blk_mq_rq_ctx_init' '__mark_inode_dirty' 'fsnotify' '__blkdev_get' 'expire_timers' 'do_epoll_wait' '__inet_hash_connect' '__find_get_block' 'ext4_ext_insert_extent' 
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2021/01/02 18:13:34 fetching corpus: 11050, signal 388417/642294 (executing program)
syzkaller login: [   46.624317][    C1] ==================================================================
[   46.632474][    C1] BUG: KCSAN: data-race in __mod_timer / timer_clear_idle
[   46.639557][    C1] 
[   46.641854][    C1] write to 0xffff88813bc1bda5 of 1 bytes by task 0 on cpu 0:
[   46.649190][    C1]  timer_clear_idle+0x1e/0x30
[   46.653844][    C1]  __tick_nohz_idle_restart_tick+0x20/0x170
[   46.659737][    C1]  tick_nohz_idle_exit+0xfc/0x210
[   46.664736][    C1]  do_idle+0x1f6/0x230
[   46.668813][    C1]  cpu_startup_entry+0x15/0x20
[   46.673547][    C1]  rest_init+0xd7/0xe0
[   46.679093][    C1]  arch_call_rest_init+0xa/0xb
[   46.683854][    C1]  start_kernel+0x59b/0x620
[   46.688334][    C1]  secondary_startup_64_no_verify+0xb0/0xbb
[   46.694314][    C1] 
[   46.696619][    C1] read to 0xffff88813bc1bda5 of 1 bytes by interrupt on cpu 1:
[   46.704138][    C1]  __mod_timer+0x8a2/0xbf0
[   46.708538][    C1]  mod_timer+0x1b/0x20
[   46.712576][    C1]  sk_reset_timer+0x1f/0xa0
[   46.717051][    C1]  tcp_send_delayed_ack+0x23e/0x250
[   46.722221][    C1]  __tcp_ack_snd_check+0x2f6/0x500
[   46.727341][    C1]  tcp_rcv_established+0x11bc/0x1450
[   46.732597][    C1]  tcp_v4_do_rcv+0x278/0x4a0
[   46.737190][    C1]  tcp_v4_rcv+0x2101/0x2370
[   46.741672][    C1]  ip_protocol_deliver_rcu+0x1f9/0x3e0
[   46.747140][    C1]  ip_local_deliver+0x1c0/0x280
[   46.751965][    C1]  ip_sublist_rcv+0x4c4/0x590
[   46.756734][    C1]  ip_list_rcv+0x262/0x290
[   46.761124][    C1]  __netif_receive_skb_list_core+0x34b/0x450
[   46.767078][    C1]  __netif_receive_skb_list+0x262/0x2e0
[   46.772618][    C1]  netif_receive_skb_list_internal+0xda/0x330
[   46.778666][    C1]  napi_complete_done+0x1b2/0x420
[   46.783696][    C1]  virtqueue_napi_complete+0x28/0x80
[   46.788954][    C1]  virtnet_poll+0x607/0x730
[   46.793427][    C1]  napi_poll+0x181/0x630
[   46.797641][    C1]  net_rx_action+0x17a/0x480
[   46.802201][    C1]  __do_softirq+0x13c/0x2c3
[   46.806678][    C1]  asm_call_irq_on_stack+0xf/0x20
[   46.811781][    C1]  do_softirq_own_stack+0x32/0x40
[   46.816781][    C1]  __irq_exit_rcu+0xb4/0xc0
[   46.821286][    C1]  common_interrupt+0xb5/0x130
[   46.826021][    C1]  asm_common_interrupt+0x1e/0x40
[   46.831015][    C1]  acpi_idle_enter+0x25b/0x2e0
[   46.835751][    C1]  cpuidle_enter_state+0x2bd/0x750
[   46.840840][    C1]  cpuidle_enter+0x3c/0x60
[   46.845230][    C1]  do_idle+0x193/0x230
[   46.849273][    C1]  cpu_startup_entry+0x15/0x20
[   46.854005][    C1]  secondary_startup_64_no_verify+0xb0/0xbb
[   46.859999][    C1] 
[   46.862330][    C1] Reported by Kernel Concurrency Sanitizer on:
[   46.868481][    C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.11.0-rc1-syzkaller #0
[   46.876426][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   46.886463][    C1] ==================================================================
[   46.894490][    C1] Kernel panic - not syncing: panic_on_warn set ...
[   46.901046][    C1] CPU: 1 PID: 0 Comm: swapper/1 Not tainted 5.11.0-rc1-syzkaller #0
[   46.909001][    C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   46.919028][    C1] Call Trace:
[   46.922282][    C1]  <IRQ>
[   46.925099][    C1]  dump_stack+0x116/0x15d
[   46.929407][    C1]  panic+0x1e7/0x5fa
[   46.933272][    C1]  ? vprintk_emit+0x2e2/0x360
[   46.937922][    C1]  kcsan_report+0x67b/0x680
[   46.942401][    C1]  ? kcsan_setup_watchpoint+0x47b/0x4e0
[   46.947920][    C1]  ? __mod_timer+0x8a2/0xbf0
[   46.952479][    C1]  ? mod_timer+0x1b/0x20
[   46.956689][    C1]  ? sk_reset_timer+0x1f/0xa0
[   46.961336][    C1]  ? tcp_send_delayed_ack+0x23e/0x250
[   46.966679][    C1]  ? __tcp_ack_snd_check+0x2f6/0x500
[   46.971936][    C1]  ? tcp_rcv_established+0x11bc/0x1450
[   46.977367][    C1]  ? tcp_v4_do_rcv+0x278/0x4a0
[   46.982099][    C1]  ? tcp_v4_rcv+0x2101/0x2370
[   46.986745][    C1]  ? ip_protocol_deliver_rcu+0x1f9/0x3e0
[   46.992350][    C1]  ? ip_local_deliver+0x1c0/0x280
[   46.997359][    C1]  ? ip_sublist_rcv+0x4c4/0x590
[   47.002182][    C1]  ? ip_list_rcv+0x262/0x290
[   47.006743][    C1]  ? __netif_receive_skb_list_core+0x34b/0x450
[   47.012878][    C1]  ? __netif_receive_skb_list+0x262/0x2e0
[   47.018567][    C1]  ? netif_receive_skb_list_internal+0xda/0x330
[   47.024797][    C1]  ? napi_complete_done+0x1b2/0x420
[   47.029969][    C1]  ? virtqueue_napi_complete+0x28/0x80
[   47.035399][    C1]  ? virtnet_poll+0x607/0x730
[   47.040049][    C1]  ? napi_poll+0x181/0x630
[   47.044435][    C1]  ? net_rx_action+0x17a/0x480
[   47.049174][    C1]  ? __do_softirq+0x13c/0x2c3
[   47.053823][    C1]  ? asm_call_irq_on_stack+0xf/0x20
[   47.058997][    C1]  ? do_softirq_own_stack+0x32/0x40
[   47.064260][    C1]  ? __irq_exit_rcu+0xb4/0xc0
[   47.068918][    C1]  ? common_interrupt+0xb5/0x130
[   47.073887][    C1]  ? asm_common_interrupt+0x1e/0x40
[   47.079115][    C1]  ? acpi_idle_enter+0x25b/0x2e0
[   47.084033][    C1]  ? cpuidle_enter_state+0x2bd/0x750
[   47.089298][    C1]  ? cpuidle_enter+0x3c/0x60
[   47.093946][    C1]  ? do_idle+0x193/0x230
[   47.098158][    C1]  ? cpu_startup_entry+0x15/0x20
[   47.103067][    C1]  ? secondary_startup_64_no_verify+0xb0/0xbb
[   47.109110][    C1]  ? map_vdso_once+0x43/0x120
[   47.113800][    C1]  ? __list_del_entry_valid+0x54/0xc0
[   47.119187][    C1]  kcsan_setup_watchpoint+0x47b/0x4e0
[   47.124546][    C1]  __mod_timer+0x8a2/0xbf0
[   47.128949][    C1]  mod_timer+0x1b/0x20
[   47.133028][    C1]  sk_reset_timer+0x1f/0xa0
[   47.137507][    C1]  tcp_send_delayed_ack+0x23e/0x250
[   47.142695][    C1]  __tcp_ack_snd_check+0x2f6/0x500
[   47.147782][    C1]  tcp_rcv_established+0x11bc/0x1450
[   47.153141][    C1]  tcp_v4_do_rcv+0x278/0x4a0
[   47.157703][    C1]  tcp_v4_rcv+0x2101/0x2370
[   47.162180][    C1]  ? nf_confirm+0x22b/0x250
[   47.166656][    C1]  ip_protocol_deliver_rcu+0x1f9/0x3e0
[   47.172100][    C1]  ip_local_deliver+0x1c0/0x280
[   47.176948][    C1]  ? ip_local_deliver+0x280/0x280
[   47.181963][    C1]  ip_sublist_rcv+0x4c4/0x590
[   47.186613][    C1]  ? ip_rcv_core+0x590/0x590
[   47.191176][    C1]  ip_list_rcv+0x262/0x290
[   47.195568][    C1]  ? ip_rcv_finish+0x160/0x160
[   47.200322][    C1]  __netif_receive_skb_list_core+0x34b/0x450
[   47.206275][    C1]  __netif_receive_skb_list+0x262/0x2e0
[   47.211791][    C1]  netif_receive_skb_list_internal+0xda/0x330
[   47.217832][    C1]  napi_complete_done+0x1b2/0x420
[   47.222826][    C1]  ? receive_buf+0x77a/0xce0
[   47.227393][    C1]  virtqueue_napi_complete+0x28/0x80
[   47.232661][    C1]  virtnet_poll+0x607/0x730
[   47.237138][    C1]  napi_poll+0x181/0x630
[   47.241374][    C1]  net_rx_action+0x17a/0x480
[   47.245945][    C1]  __do_softirq+0x13c/0x2c3
[   47.250424][    C1]  asm_call_irq_on_stack+0xf/0x20
[   47.255422][    C1]  </IRQ>
[   47.258344][    C1]  do_softirq_own_stack+0x32/0x40
[   47.263363][    C1]  __irq_exit_rcu+0xb4/0xc0
[   47.267837][    C1]  common_interrupt+0xb5/0x130
[   47.272576][    C1]  asm_common_interrupt+0x1e/0x40
[   47.277577][    C1] RIP: 0010:acpi_idle_enter+0x25b/0x2e0
[   47.283099][    C1] Code: 48 8b 1b 48 89 de 48 83 e6 08 31 ff e8 6e 20 8f fe 48 83 e3 08 75 63 e9 0c 00 00 00 e8 ae 1b 8f fe 0f 00 2d 41 d0 28 03 fb f4 <fa> eb 59 49 8d 7c 24 04 e8 28 96 9f fe 41 8b 54 24 04 ec 48 c7 c7
[   47.302676][    C1] RSP: 0018:ffffc90000cd3e10 EFLAGS: 00000246
[   47.308715][    C1] RAX: 0000000000000000 RBX: 0000000000000000 RCX: 000000000000008b
[   47.316782][    C1] RDX: ffff888100c20000 RSI: 0000000000000000 RDI: 0000000000000000
[   47.324726][    C1] RBP: 0000000000000001 R08: ffffffff82b699a2 R09: ffffffff82b69963
[   47.332673][    C1] R10: 0000000000000002 R11: ffff888100c20000 R12: ffff888140c9e464
[   47.340616][    C1] R13: 0000000000000001 R14: 0000000000000001 R15: ffff88813bd00000
[   47.348563][    C1]  ? acpi_idle_enter+0x203/0x2e0
[   47.353476][    C1]  ? acpi_idle_enter+0x242/0x2e0
[   47.358389][    C1]  cpuidle_enter_state+0x2bd/0x750
[   47.363475][    C1]  cpuidle_enter+0x3c/0x60
[   47.367902][    C1]  do_idle+0x193/0x230
[   47.371942][    C1]  cpu_startup_entry+0x15/0x20
[   47.377284][    C1]  secondary_startup_64_no_verify+0xb0/0xbb
[   47.383802][    C1] Kernel Offset: disabled
[   47.388104][    C1] Rebooting in 86400 seconds..