Warning: Permanently added '10.128.0.42' (ECDSA) to the list of known hosts. 2020/02/12 05:13:34 fuzzer started 2020/02/12 05:13:36 dialing manager at 10.128.0.105:33155 2020/02/12 05:13:36 syscalls: 2904 2020/02/12 05:13:36 code coverage: enabled 2020/02/12 05:13:36 comparison tracing: enabled 2020/02/12 05:13:36 extra coverage: enabled 2020/02/12 05:13:36 setuid sandbox: enabled 2020/02/12 05:13:36 namespace sandbox: enabled 2020/02/12 05:13:36 Android sandbox: /sys/fs/selinux/policy does not exist 2020/02/12 05:13:36 fault injection: enabled 2020/02/12 05:13:36 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/02/12 05:13:36 net packet injection: enabled 2020/02/12 05:13:36 net device setup: enabled 2020/02/12 05:13:36 concurrency sanitizer: enabled 2020/02/12 05:13:36 devlink PCI setup: PCI device 0000:00:10.0 is not available 2020/02/12 05:13:36 adding functions to KCSAN blacklist: 'tick_sched_do_timer' 'tomoyo_supervisor' 'do_syslog' 'vm_area_dup' syzkaller login: [ 63.044984][ C1] ================================================================== [ 63.053538][ C1] BUG: KCSAN: data-race in tick_do_update_jiffies64 / tick_do_update_jiffies64 [ 63.062486][ C1] [ 63.064952][ C1] write to 0xffffffff8624d7c8 of 8 bytes by interrupt on cpu 0: [ 63.072823][ C1] tick_do_update_jiffies64+0x100/0x250 [ 63.078506][ C1] tick_sched_do_timer+0xd4/0xe0 [ 63.083569][ C1] tick_sched_timer+0x43/0xe0 [ 63.088341][ C1] __hrtimer_run_queues+0x274/0x5f0 [ 63.093676][ C1] hrtimer_interrupt+0x22a/0x480 [ 63.098606][ C1] smp_apic_timer_interrupt+0xdc/0x280 [ 63.104280][ C1] apic_timer_interrupt+0xf/0x20 [ 63.109207][ C1] __read_once_size+0x38/0xe0 [ 63.113876][ C1] receive_buf+0x755/0x30b0 [ 63.118371][ C1] virtnet_poll+0x436/0x7d0 [ 63.122873][ C1] net_rx_action+0x3ae/0xa90 [ 63.127464][ C1] __do_softirq+0x115/0x33f [ 63.136404][ C1] run_ksoftirqd+0x46/0x60 [ 63.141001][ C1] smpboot_thread_fn+0x37d/0x4a0 [ 63.146029][ C1] kthread+0x1d4/0x200 [ 63.150220][ C1] ret_from_fork+0x1f/0x30 [ 63.154615][ C1] [ 63.156944][ C1] read to 0xffffffff8624d7c8 of 8 bytes by interrupt on cpu 1: [ 63.164488][ C1] tick_do_update_jiffies64+0x2b/0x250 [ 63.170098][ C1] tick_sched_do_timer+0xd4/0xe0 [ 63.175028][ C1] tick_sched_timer+0x43/0xe0 [ 63.179706][ C1] __hrtimer_run_queues+0x274/0x5f0 [ 63.184933][ C1] hrtimer_interrupt+0x22a/0x480 [ 63.189862][ C1] smp_apic_timer_interrupt+0xdc/0x280 [ 63.195318][ C1] apic_timer_interrupt+0xf/0x20 [ 63.200248][ C1] __tsan_read4+0xb4/0x100 [ 63.204650][ C1] tcp_grow_window.isra.0+0x6a/0x4d0 [ 63.209940][ C1] tcp_event_data_recv+0x68f/0x990 [ 63.218391][ C1] tcp_rcv_established+0xbfe/0xf50 [ 63.223481][ C1] tcp_v4_do_rcv+0x3b5/0x520 [ 63.228148][ C1] __release_sock+0x135/0x1e0 [ 63.232809][ C1] release_sock+0x61/0x160 [ 63.237210][ C1] tcp_recvmsg+0x68f/0x1c90 [ 63.241708][ C1] inet_recvmsg+0xbb/0x250 [ 63.246706][ C1] sock_recvmsg+0x92/0xb0 [ 63.251147][ C1] sock_read_iter+0x15f/0x1e0 [ 63.255811][ C1] new_sync_read+0x4b1/0x4f0 [ 63.260399][ C1] __vfs_read+0xb1/0xc0 [ 63.264704][ C1] vfs_read+0x143/0x2c0 [ 63.269006][ C1] ksys_read+0x17b/0x1b0 [ 63.273449][ C1] __x64_sys_read+0x4c/0x60 [ 63.277957][ C1] do_syscall_64+0xcc/0x3a0 [ 63.282456][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 63.288354][ C1] [ 63.290675][ C1] Reported by Kernel Concurrency Sanitizer on: [ 63.296817][ C1] CPU: 1 PID: 7898 Comm: syz-fuzzer Not tainted 5.5.0-rc1-syzkaller #0 [ 63.305155][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.315199][ C1] ================================================================== [ 63.323252][ C1] Kernel panic - not syncing: panic_on_warn set ... [ 63.329833][ C1] CPU: 1 PID: 7898 Comm: syz-fuzzer Not tainted 5.5.0-rc1-syzkaller #0 [ 63.338046][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.348088][ C1] Call Trace: [ 63.351353][ C1] [ 63.354191][ C1] dump_stack+0x11d/0x181 [ 63.358572][ C1] panic+0x210/0x640 [ 63.362459][ C1] ? vprintk_func+0x8d/0x140 [ 63.367143][ C1] kcsan_report.cold+0xc/0x15 [ 63.371871][ C1] kcsan_setup_watchpoint+0x2e2/0x380 [ 63.377368][ C1] __tsan_read8+0xc6/0x100 [ 63.381776][ C1] tick_do_update_jiffies64+0x2b/0x250 [ 63.387232][ C1] tick_sched_do_timer+0xd4/0xe0 [ 63.392167][ C1] tick_sched_timer+0x43/0xe0 [ 63.396902][ C1] __hrtimer_run_queues+0x274/0x5f0 [ 63.402101][ C1] ? tick_sched_handle+0x100/0x100 [ 63.407210][ C1] hrtimer_interrupt+0x22a/0x480 [ 63.412198][ C1] ? sched_clock+0x13/0x20 [ 63.416614][ C1] smp_apic_timer_interrupt+0xdc/0x280 [ 63.422208][ C1] apic_timer_interrupt+0xf/0x20 [ 63.427132][ C1] [ 63.430065][ C1] RIP: 0010:__tsan_read4+0xb4/0x100 [ 63.435809][ C1] Code: 85 d2 7f 59 8b 50 08 85 d2 7f 31 80 78 0c 00 75 2b 48 81 ff 00 50 c0 85 74 22 48 c7 c0 ff ff ff ff 65 48 0f c1 05 7c dc af 7e <48> 83 e8 01 79 0c 31 d2 be 04 00 00 00 e8 6a f7 ff ff 5d c3 65 48 [ 63.455420][ C1] RSP: 0018:ffffc90001653898 EFLAGS: 00000213 ORIG_RAX: ffffffffffffff13 [ 63.463821][ C1] RAX: 0000000000000033 RBX: ffff888122d0e040 RCX: ffffffff86253570 [ 63.471785][ C1] RDX: 0000000000000000 RSI: ffffffff83fd2041 RDI: ffffc900016538c8 [ 63.479747][ C1] RBP: ffffc90001653898 R08: 0000000000000000 R09: 0000c900016538c8 [ 63.487729][ C1] R10: 0000888122d0e6c6 R11: 0000c900016538cb R12: 0000000000033780 [ 63.495697][ C1] R13: 00000000000000f0 R14: ffff888122d0e50c R15: ffff888122d0e518 [ 63.503677][ C1] ? __read_once_size+0xd1/0x110 [ 63.508675][ C1] tcp_grow_window.isra.0+0x6a/0x4d0 [ 63.513983][ C1] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 63.520220][ C1] tcp_event_data_recv+0x68f/0x990 [ 63.525333][ C1] ? tcp_queue_rcv+0xaf/0x390 [ 63.530001][ C1] tcp_rcv_established+0xbfe/0xf50 [ 63.535108][ C1] ? ipv4_dst_check+0xc6/0xf0 [ 63.539859][ C1] tcp_v4_do_rcv+0x3b5/0x520 [ 63.544579][ C1] __release_sock+0x135/0x1e0 [ 63.549257][ C1] release_sock+0x61/0x160 [ 63.553668][ C1] tcp_recvmsg+0x68f/0x1c90 [ 63.558165][ C1] inet_recvmsg+0xbb/0x250 [ 63.562629][ C1] ? apparmor_socket_recvmsg+0x3b/0x50 [ 63.568087][ C1] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 63.574370][ C1] ? security_socket_recvmsg+0x92/0xb0 [ 63.579833][ C1] ? inet_sendpage+0x100/0x100 [ 63.584596][ C1] sock_recvmsg+0x92/0xb0 [ 63.588931][ C1] sock_read_iter+0x15f/0x1e0 [ 63.593601][ C1] new_sync_read+0x4b1/0x4f0 [ 63.598381][ C1] __vfs_read+0xb1/0xc0 [ 63.602546][ C1] vfs_read+0x143/0x2c0 [ 63.606712][ C1] ksys_read+0x17b/0x1b0 [ 63.610954][ C1] __x64_sys_read+0x4c/0x60 [ 63.615457][ C1] do_syscall_64+0xcc/0x3a0 [ 63.620075][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 63.625956][ C1] RIP: 0033:0x47c530 [ 63.630003][ C1] 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 [ 63.649882][ C1] RSP: 002b:000000c4202a4810 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 63.658407][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530 [ 63.666373][ C1] RDX: 0000000000001000 RSI: 000000c420092000 RDI: 0000000000000003 [ 63.674338][ C1] RBP: 000000c4202a4868 R08: 0000000000000000 R09: 0000000000000000 [ 63.682297][ C1] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008 [ 63.690260][ C1] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff [ 63.699679][ C1] Kernel Offset: disabled [ 63.704011][ C1] Rebooting in 86400 seconds..