Warning: Permanently added '10.128.0.177' (ECDSA) to the list of known hosts. 2019/11/09 23:32:40 fuzzer started 2019/11/09 23:32:42 dialing manager at 10.128.0.105:33901 2019/11/09 23:32:44 syscalls: 2553 2019/11/09 23:32:44 code coverage: enabled 2019/11/09 23:32:44 comparison tracing: enabled 2019/11/09 23:32:44 extra coverage: extra coverage is not supported by the kernel 2019/11/09 23:32:44 setuid sandbox: enabled 2019/11/09 23:32:44 namespace sandbox: enabled 2019/11/09 23:32:44 Android sandbox: /sys/fs/selinux/policy does not exist 2019/11/09 23:32:44 fault injection: enabled 2019/11/09 23:32:44 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/11/09 23:32:44 net packet injection: enabled 2019/11/09 23:32:44 net device setup: enabled 2019/11/09 23:32:44 concurrency sanitizer: enabled 2019/11/09 23:32:44 devlink PCI setup: PCI device 0000:00:10.0 is not available syzkaller login: [ 66.447090][ T8040] KCSAN: could not find function: 'poll_schedule_timeout' 2019/11/09 23:32:50 adding functions to KCSAN blacklist: 'tomoyo_supervisor' 'rcu_gp_fqs_check_wake' 'mod_timer' 'snd_seq_prioq_cell_out' 'taskstats_exit' '__hrtimer_run_queues' 'poll_schedule_timeout' 'blk_mq_sched_dispatch_requests' 'pipe_poll' 'tcp_add_backlog' 'find_next_bit' 'generic_write_end' 'do_wait' 'blk_mq_get_request' 'ktime_get_real_seconds' 'tick_nohz_idle_stop_tick' 'inactive_list_is_low' 'add_timer' 'tick_do_update_jiffies64' 'run_timer_softirq' 'ext4_nonda_switch' 'dnotify_flush' 'pcpu_alloc' 'osq_lock' 'xas_clear_mark' 'generic_permission' 'tick_sched_do_timer' 'ext4_mark_iloc_dirty' 'lruvec_lru_size' 'pid_update_inode' 'icmp_global_allow' 'blk_mq_dispatch_rq_list' '__ext4_new_inode' 'ep_poll' 'n_tty_receive_buf_common' 'wbt_issue' 'vm_area_dup' 'task_dump_owner' 'ext4_has_free_clusters' 'ext4_free_inodes_count' [ 86.521245][ T8028] ================================================================== [ 86.529383][ T8028] BUG: KCSAN: data-race in ktime_get_seconds / timekeeping_advance [ 86.537259][ T8028] [ 86.539658][ T8028] write to 0xffffffff86041b08 of 280 bytes by interrupt on cpu 1: [ 86.547451][ T8028] timekeeping_advance+0x88e/0xd80 [ 86.552557][ T8028] update_wall_time+0x19/0x20 [ 86.557225][ T8028] tick_do_update_jiffies64+0x1a4/0x250 [ 86.562761][ T8028] tick_sched_do_timer+0xd4/0xe0 [ 86.567687][ T8028] tick_sched_timer+0x43/0xe0 [ 86.572583][ T8028] __hrtimer_run_queues+0x274/0x5f0 [ 86.577771][ T8028] hrtimer_interrupt+0x22a/0x480 [ 86.582702][ T8028] smp_apic_timer_interrupt+0xdc/0x280 [ 86.588335][ T8028] apic_timer_interrupt+0xf/0x20 [ 86.593292][ T8028] __tsan_unaligned_write2+0xbf/0x1f0 [ 86.598667][ T8028] dev_gro_receive+0x882/0x1120 [ 86.603510][ T8028] napi_gro_receive+0x7c/0x330 [ 86.608271][ T8028] receive_buf+0x284/0x30b0 [ 86.612775][ T8028] virtnet_poll+0x436/0x7d0 [ 86.617266][ T8028] net_rx_action+0x3ae/0xa90 [ 86.621842][ T8028] __do_softirq+0x115/0x33f [ 86.626343][ T8028] run_ksoftirqd+0x46/0x60 [ 86.630807][ T8028] smpboot_thread_fn+0x37d/0x4a0 [ 86.635732][ T8028] kthread+0x1d4/0x200 [ 86.639796][ T8028] ret_from_fork+0x1f/0x30 [ 86.644201][ T8028] [ 86.646520][ T8028] read to 0xffffffff86041b80 of 8 bytes by task 8028 on cpu 0: [ 86.654057][ T8028] ktime_get_seconds+0x45/0x70 [ 86.658804][ T8028] tcp_rcv_established+0xeeb/0xf50 [ 86.663907][ T8028] tcp_v4_do_rcv+0x3b5/0x520 [ 86.668488][ T8028] __release_sock+0x135/0x1e0 [ 86.673161][ T8028] release_sock+0x61/0x160 [ 86.677558][ T8028] tcp_recvmsg+0x653/0x1b40 [ 86.682043][ T8028] inet_recvmsg+0xbb/0x250 [ 86.686459][ T8028] sock_recvmsg+0x92/0xb0 [ 86.690772][ T8028] sock_read_iter+0x15f/0x1e0 [ 86.695440][ T8028] new_sync_read+0x389/0x4f0 [ 86.700017][ T8028] __vfs_read+0xb1/0xc0 [ 86.704173][ T8028] vfs_read+0x143/0x2c0 [ 86.708323][ T8028] ksys_read+0xd5/0x1b0 [ 86.712665][ T8028] __x64_sys_read+0x4c/0x60 [ 86.717221][ T8028] do_syscall_64+0xcc/0x370 [ 86.721748][ T8028] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 86.727629][ T8028] [ 86.729944][ T8028] Reported by Kernel Concurrency Sanitizer on: [ 86.736087][ T8028] CPU: 0 PID: 8028 Comm: syz-fuzzer Not tainted 5.4.0-rc6+ #0 [ 86.743521][ T8028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 86.753577][ T8028] ================================================================== [ 86.761643][ T8028] Kernel panic - not syncing: panic_on_warn set ... [ 86.768233][ T8028] CPU: 0 PID: 8028 Comm: syz-fuzzer Not tainted 5.4.0-rc6+ #0 [ 86.775664][ T8028] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 86.785698][ T8028] Call Trace: [ 86.788979][ T8028] dump_stack+0xf5/0x159 [ 86.793208][ T8028] panic+0x210/0x640 [ 86.797090][ T8028] ? vprintk_func+0x8d/0x140 [ 86.801666][ T8028] kcsan_report.cold+0xc/0xe [ 86.806327][ T8028] kcsan_setup_watchpoint+0x3fe/0x410 [ 86.811706][ T8028] ? __sanitizer_cov_trace_cmp4+0x16/0x20 [ 86.817464][ T8028] __tsan_read8+0x145/0x1f0 [ 86.821954][ T8028] ktime_get_seconds+0x45/0x70 [ 86.826707][ T8028] tcp_rcv_established+0xeeb/0xf50 [ 86.832349][ T8028] ? ipv4_dst_check+0xc6/0xf0 [ 86.837142][ T8028] tcp_v4_do_rcv+0x3b5/0x520 [ 86.841749][ T8028] __release_sock+0x135/0x1e0 [ 86.846429][ T8028] release_sock+0x61/0x160 [ 86.850850][ T8028] tcp_recvmsg+0x653/0x1b40 [ 86.855367][ T8028] inet_recvmsg+0xbb/0x250 [ 86.859770][ T8028] ? apparmor_socket_recvmsg+0x3b/0x50 [ 86.865296][ T8028] ? security_socket_recvmsg+0x92/0xb0 [ 86.870763][ T8028] ? inet_sendpage+0x100/0x100 [ 86.875581][ T8028] sock_recvmsg+0x92/0xb0 [ 86.879903][ T8028] sock_read_iter+0x15f/0x1e0 [ 86.884578][ T8028] new_sync_read+0x389/0x4f0 [ 86.889294][ T8028] __vfs_read+0xb1/0xc0 [ 86.893539][ T8028] vfs_read+0x143/0x2c0 [ 86.897690][ T8028] ksys_read+0xd5/0x1b0 [ 86.901856][ T8028] __x64_sys_read+0x4c/0x60 [ 86.906356][ T8028] do_syscall_64+0xcc/0x370 [ 86.910867][ T8028] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 86.916741][ T8028] RIP: 0033:0x47c530 [ 86.920637][ T8028] 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 [ 86.940254][ T8028] RSP: 002b:000000c4203337d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 86.948660][ T8028] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530 [ 86.956652][ T8028] RDX: 0000000000001000 RSI: 000000c4202ea000 RDI: 0000000000000003 [ 86.964626][ T8028] RBP: 000000c420333830 R08: 0000000000000000 R09: 0000000000000000 [ 86.972587][ T8028] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000020 [ 86.980543][ T8028] R13: ffffffffffffffff R14: 0000000000000010 R15: ffffffffffffffff [ 86.990344][ T8028] Kernel Offset: disabled [ 86.994697][ T8028] Rebooting in 86400 seconds..