Warning: Permanently added '10.128.0.218' (ECDSA) to the list of known hosts.
2020/04/14 06:59:27 fuzzer started
2020/04/14 06:59:28 dialing manager at 10.128.0.105:39077
2020/04/14 06:59:29 syscalls: 2957
2020/04/14 06:59:29 code coverage: enabled
2020/04/14 06:59:29 comparison tracing: enabled
2020/04/14 06:59:29 extra coverage: enabled
2020/04/14 06:59:29 setuid sandbox: enabled
2020/04/14 06:59:29 namespace sandbox: enabled
2020/04/14 06:59:29 Android sandbox: /sys/fs/selinux/policy does not exist
2020/04/14 06:59:29 fault injection: enabled
2020/04/14 06:59:29 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/04/14 06:59:29 net packet injection: enabled
2020/04/14 06:59:29 net device setup: enabled
2020/04/14 06:59:29 concurrency sanitizer: enabled
2020/04/14 06:59:29 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/04/14 06:59:29 USB emulation: /dev/raw-gadget does not exist
syzkaller login: [   59.468320][ T7772] KCSAN: could not find function: 'poll_schedule_timeout'
[   59.983810][ T7772] KCSAN: could not find function: '_find_next_bit'
2020/04/14 06:59:35 adding functions to KCSAN blacklist: '__ext4_new_inode' 'wbt_done' 'ext4_mark_iloc_dirty' 'shmem_add_to_page_cache' 'iptunnel_xmit' 'ext4_mb_good_group' 'copy_process' 'ext4_free_inodes_count' 'blk_mq_sched_dispatch_requests' 'kauditd_thread' 'ktime_get_real_seconds' 'generic_update_time' 'n_tty_receive_buf_common' 'lruvec_lru_size' 'blk_mq_get_request' 'generic_fillattr' 'ext4_has_free_clusters' 'wbt_issue' 'dd_has_work' 'ext4_writepages' 'run_timer_softirq' 'blk_mq_dispatch_rq_list' 'do_readlinkat' 'atime_needs_update' '__add_to_page_cache_locked' 'xas_clear_mark' 'shmem_file_read_iter' 'tick_nohz_idle_stop_tick' '__mark_inode_dirty' 'ext4_nonda_switch' 'echo_char' 'generic_write_end' 'page_counter_try_charge' '__filemap_fdatawrite_range' 'futex_wait_queue_me' 'find_get_pages_range_tag' 'ep_poll' 'mod_timer' 'poll_schedule_timeout' 'do_syslog' '_find_next_bit' 'tick_sched_do_timer' 'ext4_setattr' 'snd_seq_prioq_cell_out' 'do_msgrcv' 'do_nanosleep' 'ext4_sync_file' 'list_lru_count_one' 'add_timer' 'audit_log_start' 'do_signal_stop' 
[  276.040898][ T7760] ==================================================================
[  276.049078][ T7760] BUG: KCSAN: data-race in ktime_get_seconds / timekeeping_advance
[  276.056970][ T7760] 
[  276.059319][ T7760] write to 0xffffffff86d972c8 of 280 bytes by interrupt on cpu 1:
[  276.067129][ T7760]  timekeeping_advance+0x88e/0xd80
[  276.072242][ T7760]  update_wall_time+0x15/0x20
[  276.076929][ T7760]  tick_do_update_jiffies64+0x1e5/0x2a0
[  276.082477][ T7760]  tick_sched_do_timer+0xc7/0xd0
[  276.087409][ T7760]  tick_sched_timer+0x3f/0xd0
[  276.092106][ T7760]  __hrtimer_run_queues+0x271/0x600
[  276.097280][ T7760]  hrtimer_interrupt+0x226/0x490
[  276.102196][ T7760]  smp_apic_timer_interrupt+0xd8/0x270
[  276.107632][ T7760]  apic_timer_interrupt+0xf/0x20
[  276.112549][ T7760]  __rcu_read_unlock+0x55/0x2f0
[  276.117377][ T7760]  dev_gro_receive+0x9e1/0x10f0
[  276.122204][ T7760]  napi_gro_receive+0x76/0x2f0
[  276.126945][ T7760]  receive_buf+0x24e/0x2e20
[  276.131471][ T7760]  virtnet_poll+0x343/0x790
[  276.135995][ T7760]  net_rx_action+0x3ad/0xac0
[  276.140573][ T7760]  __do_softirq+0x118/0x34a
[  276.145069][ T7760]  run_ksoftirqd+0x41/0x60
[  276.149468][ T7760]  smpboot_thread_fn+0x374/0x4a0
[  276.154385][ T7760]  kthread+0x1cb/0x1f0
[  276.158443][ T7760]  ret_from_fork+0x1f/0x30
[  276.162878][ T7760] 
[  276.166147][ T7760] read to 0xffffffff86d97340 of 8 bytes by task 7760 on cpu 0:
[  276.173672][ T7760]  ktime_get_seconds+0x42/0x60
[  276.178424][ T7760]  tcp_rcv_established+0xe79/0xee0
[  276.183528][ T7760]  tcp_v4_do_rcv+0x396/0x4f0
[  276.188097][ T7760]  __release_sock+0x130/0x1e0
[  276.192759][ T7760]  release_sock+0x5e/0x160
[  276.197163][ T7760]  tcp_recvmsg+0x68f/0x1cc0
[  276.201644][ T7760]  inet_recvmsg+0xc1/0x250
[  276.206039][ T7760]  sock_recvmsg+0x8e/0xb0
[  276.210359][ T7760]  sock_read_iter+0x185/0x230
[  276.215028][ T7760]  new_sync_read+0x416/0x450
[  276.219598][ T7760]  __vfs_read+0x9e/0xb0
[  276.223734][ T7760]  vfs_read+0x13e/0x2b0
[  276.227878][ T7760]  ksys_read+0x16a/0x1a0
[  276.232102][ T7760]  __x64_sys_read+0x49/0x60
[  276.236586][ T7760]  do_syscall_64+0xc7/0x390
[  276.241080][ T7760]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  276.246942][ T7760] 
[  276.249246][ T7760] Reported by Kernel Concurrency Sanitizer on:
[  276.255506][ T7760] CPU: 0 PID: 7760 Comm: syz-fuzzer Not tainted 5.6.0-rc1-syzkaller #0
[  276.263821][ T7760] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  276.273868][ T7760] ==================================================================
[  276.281907][ T7760] Kernel panic - not syncing: panic_on_warn set ...
[  276.288475][ T7760] CPU: 0 PID: 7760 Comm: syz-fuzzer Not tainted 5.6.0-rc1-syzkaller #0
[  276.296695][ T7760] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  276.307161][ T7760] Call Trace:
[  276.310529][ T7760]  dump_stack+0x11d/0x187
[  276.314852][ T7760]  panic+0x210/0x640
[  276.318730][ T7760]  ? vprintk_func+0x89/0x13a
[  276.323304][ T7760]  kcsan_report.cold+0xc/0xf
[  276.327894][ T7760]  kcsan_setup_watchpoint+0x3fb/0x440
[  276.333266][ T7760]  ktime_get_seconds+0x42/0x60
[  276.338052][ T7760]  tcp_rcv_established+0xe79/0xee0
[  276.343160][ T7760]  tcp_v4_do_rcv+0x396/0x4f0
[  276.347740][ T7760]  __release_sock+0x130/0x1e0
[  276.352578][ T7760]  release_sock+0x5e/0x160
[  276.356988][ T7760]  tcp_recvmsg+0x68f/0x1cc0
[  276.361500][ T7760]  inet_recvmsg+0xc1/0x250
[  276.365909][ T7760]  ? apparmor_socket_recvmsg+0x38/0x40
[  276.371369][ T7760]  ? inet_sendpage+0xf0/0xf0
[  276.375946][ T7760]  sock_recvmsg+0x8e/0xb0
[  276.380263][ T7760]  sock_read_iter+0x185/0x230
[  276.384931][ T7760]  new_sync_read+0x416/0x450
[  276.389509][ T7760]  __vfs_read+0x9e/0xb0
[  276.393647][ T7760]  vfs_read+0x13e/0x2b0
[  276.397793][ T7760]  ksys_read+0x16a/0x1a0
[  276.402021][ T7760]  __x64_sys_read+0x49/0x60
[  276.406509][ T7760]  do_syscall_64+0xc7/0x390
[  276.410996][ T7760]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  276.416874][ T7760] RIP: 0033:0x47c530
[  276.420759][ T7760] Code: 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 49 c7 c2 00 00 00 00 49 c7 c0 00 00 00 00 49 c7 c1 00 00 00 00 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30
[  276.440339][ T7760] RSP: 002b:000000c420355810 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[  276.448739][ T7760] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[  276.456775][ T7760] RDX: 0000000000001000 RSI: 000000c42021a000 RDI: 0000000000000003
[  276.464727][ T7760] RBP: 000000c420355868 R08: 0000000000000000 R09: 0000000000000000
[  276.472676][ T7760] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003
[  276.480625][ T7760] R13: 000000c42f8d6eb8 R14: 0000000000000002 R15: ffffffffffffffff
[  276.490030][ T7760] Kernel Offset: disabled
[  276.494352][ T7760] Rebooting in 86400 seconds..