Warning: Permanently added '10.128.10.48' (ECDSA) to the list of known hosts.
2020/04/19 23:31:09 fuzzer started
2020/04/19 23:31:11 dialing manager at 10.128.0.105:46167
syzkaller login: [   46.368363][ T6693] ld (6693) used greatest stack depth: 10440 bytes left
2020/04/19 23:31:11 syscalls: 2960
2020/04/19 23:31:11 code coverage: enabled
2020/04/19 23:31:11 comparison tracing: enabled
2020/04/19 23:31:11 extra coverage: enabled
2020/04/19 23:31:11 setuid sandbox: enabled
2020/04/19 23:31:11 namespace sandbox: enabled
2020/04/19 23:31:11 Android sandbox: /sys/fs/selinux/policy does not exist
2020/04/19 23:31:11 fault injection: enabled
2020/04/19 23:31:11 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2020/04/19 23:31:11 net packet injection: enabled
2020/04/19 23:31:11 net device setup: enabled
2020/04/19 23:31:11 concurrency sanitizer: enabled
2020/04/19 23:31:11 devlink PCI setup: PCI device 0000:00:10.0 is not available
2020/04/19 23:31:11 USB emulation: /dev/raw-gadget does not exist
[   47.800626][ T6698] KCSAN: could not find function: '_find_next_bit'
2020/04/19 23:31:15 adding functions to KCSAN blacklist: 'xas_find_marked' 'dd_has_work' 'add_timer' '__mark_inode_dirty' 'generic_write_end' 'echo_char' 'kauditd_thread' 'copy_process' '_find_next_bit' 'xas_clear_mark' 'do_nanosleep' 'tick_nohz_idle_stop_tick' 'blk_mq_sched_dispatch_requests' 'run_timer_softirq' 'blk_mq_dispatch_rq_list' 'pcpu_alloc' 'find_get_pages_range_tag' 'mod_timer' 'ext4_free_inodes_count' 'blk_mq_get_request' 'page_counter_charge' 'generic_fillattr' 'io_sq_thread' '__snd_rawmidi_transmit_ack' 'ep_poll' 'alloc_pid' 'audit_log_start' 'n_tty_receive_buf_common' '__ext4_new_inode' 
[  150.293214][    T0] ==================================================================
[  150.301367][    T0] BUG: KCSAN: data-race in tick_nohz_next_event / tick_sched_do_timer
[  150.309685][    T0] 
[  150.312023][    T0] write to 0xffffffff85f0ef50 of 4 bytes by interrupt on cpu 1:
[  150.319666][    T0]  tick_sched_do_timer+0xb4/0xd0
[  150.324613][    T0]  tick_sched_timer+0x3f/0xd0
[  150.329293][    T0]  __hrtimer_run_queues+0x271/0x600
[  150.334497][    T0]  hrtimer_interrupt+0x226/0x490
[  150.339443][    T0]  smp_apic_timer_interrupt+0xd8/0x270
[  150.345129][    T0]  apic_timer_interrupt+0xf/0x20
[  150.351723][    T0]  __tsan_read8+0x9a/0x110
[  150.356166][    T0]  __check_object_size+0x1d2/0x337
[  150.361335][    T0]  simple_copy_to_iter+0x48/0x80
[  150.366310][    T0]  __skb_datagram_iter+0x23f/0x470
[  150.371455][    T0]  skb_copy_datagram_iter+0x65/0x160
[  150.377104][    T0]  tcp_recvmsg+0x109e/0x1ba0
[  150.381844][    T0]  inet_recvmsg+0xc1/0x250
[  150.386255][    T0]  sock_recvmsg+0x8e/0xb0
[  150.390734][    T0]  sock_read_iter+0x185/0x230
[  150.395423][    T0]  new_sync_read+0x416/0x450
[  150.400088][    T0]  __vfs_read+0x9e/0xb0
[  150.404258][    T0]  vfs_read+0x13e/0x2b0
[  150.408406][    T0]  ksys_read+0x16a/0x1a0
[  150.412655][    T0]  __x64_sys_read+0x49/0x60
[  150.417172][    T0]  do_syscall_64+0xc7/0x3b0
[  150.421677][    T0]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[  150.427555][    T0] 
[  150.429994][    T0] read to 0xffffffff85f0ef50 of 4 bytes by task 0 on cpu 0:
[  150.437271][    T0]  tick_nohz_next_event+0x181/0x340
[  150.442473][    T0]  tick_nohz_idle_stop_tick+0x3b9/0x680
[  150.448037][    T0]  do_idle+0x1ad/0x290
[  150.452103][    T0]  cpu_startup_entry+0x14/0x20
[  150.456861][    T0]  rest_init+0xe4/0xeb
[  150.461006][    T0]  arch_call_rest_init+0x13/0x2b
[  150.465942][    T0]  start_kernel+0x82d/0x852
[  150.470545][    T0]  secondary_startup_64+0xa4/0xb0
[  150.475556][    T0] 
[  150.477931][    T0] Reported by Kernel Concurrency Sanitizer on:
[  150.484079][    T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.7.0-rc1-syzkaller #0
[  150.491958][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  150.501991][    T0] ==================================================================
[  150.510032][    T0] Kernel panic - not syncing: panic_on_warn set ...
[  150.516967][    T0] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.7.0-rc1-syzkaller #0
[  150.524845][    T0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[  150.535424][    T0] Call Trace:
[  150.538722][    T0]  dump_stack+0x11d/0x187
[  150.543052][    T0]  panic+0x210/0x640
[  150.546942][    T0]  ? vprintk_func+0x89/0x13a
[  150.551518][    T0]  kcsan_report.cold+0xc/0x1a
[  150.556179][    T0]  kcsan_setup_watchpoint+0x3fb/0x440
[  150.561537][    T0]  tick_nohz_next_event+0x181/0x340
[  150.566720][    T0]  tick_nohz_idle_stop_tick+0x3b9/0x680
[  150.572275][    T0]  ? ktime_get+0x1c9/0x210
[  150.576695][    T0]  ? debug_smp_processor_id+0x3f/0x129
[  150.582295][    T0]  do_idle+0x1ad/0x290
[  150.586448][    T0]  ? debug_smp_processor_id+0x3a/0x129
[  150.592068][    T0]  cpu_startup_entry+0x14/0x20
[  150.596860][    T0]  rest_init+0xe4/0xeb
[  150.600929][    T0]  arch_call_rest_init+0x13/0x2b
[  150.605875][    T0]  start_kernel+0x82d/0x852
[  150.610372][    T0]  secondary_startup_64+0xa4/0xb0
[  150.616901][    T0] Kernel Offset: disabled
[  150.621330][    T0] Rebooting in 86400 seconds..