Warning: Permanently added '10.128.15.218' (ECDSA) to the list of known hosts. 2019/10/17 05:51:49 fuzzer started 2019/10/17 05:51:51 dialing manager at 10.128.0.105:33899 2019/10/17 05:51:51 syscalls: 2524 2019/10/17 05:51:51 code coverage: enabled 2019/10/17 05:51:51 comparison tracing: enabled 2019/10/17 05:51:51 extra coverage: extra coverage is not supported by the kernel 2019/10/17 05:51:51 setuid sandbox: enabled 2019/10/17 05:51:51 namespace sandbox: enabled 2019/10/17 05:51:51 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/17 05:51:51 fault injection: enabled 2019/10/17 05:51:51 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/17 05:51:51 net packet injection: enabled 2019/10/17 05:51:51 net device setup: enabled 2019/10/17 05:51:51 concurrency sanitizer: enabled syzkaller login: [ 47.566156][ C1] ================================================================== [ 47.574308][ C1] BUG: KCSAN: data-race in tick_do_update_jiffies64 / tick_do_update_jiffies64 [ 47.583221][ C1] [ 47.585544][ C1] write to 0xffffffff86042008 of 8 bytes by interrupt on cpu 0: [ 47.593168][ C1] tick_do_update_jiffies64+0x105/0x260 [ 47.598692][ C1] tick_sched_do_timer+0xd4/0xe0 [ 47.603605][ C1] tick_sched_timer+0x43/0xe0 [ 47.608266][ C1] __hrtimer_run_queues+0x288/0x600 [ 47.613437][ C1] hrtimer_interrupt+0x22a/0x480 [ 47.618351][ C1] smp_apic_timer_interrupt+0xdc/0x280 [ 47.623783][ C1] apic_timer_interrupt+0xf/0x20 [ 47.628697][ C1] __kcsan_setup_watchpoint+0xc3/0x510 [ 47.634142][ C1] __tsan_write4+0x32/0x40 [ 47.638550][ C1] __napi_alloc_skb+0xed/0x210 [ 47.643291][ C1] page_to_skb+0x8d/0x480 [ 47.647598][ C1] receive_buf+0x17c7/0x30b0 [ 47.652179][ C1] virtnet_poll+0x436/0x7d0 [ 47.656663][ C1] net_rx_action+0x3ae/0xa90 [ 47.661235][ C1] [ 47.663540][ C1] read to 0xffffffff86042008 of 8 bytes by interrupt on cpu 1: [ 47.671072][ C1] tick_do_update_jiffies64+0x2b/0x260 [ 47.676507][ C1] tick_sched_do_timer+0xd4/0xe0 [ 47.681421][ C1] tick_sched_timer+0x43/0xe0 [ 47.686079][ C1] __hrtimer_run_queues+0x288/0x600 [ 47.691258][ C1] hrtimer_interrupt+0x22a/0x480 [ 47.696172][ C1] smp_apic_timer_interrupt+0xdc/0x280 [ 47.701603][ C1] apic_timer_interrupt+0xf/0x20 [ 47.706523][ C1] __kcsan_check_watchpoint+0xbb/0x180 [ 47.711969][ C1] __tsan_read4+0x15/0x30 [ 47.716288][ C1] tcp_event_data_recv+0x195/0x990 [ 47.721373][ C1] tcp_rcv_established+0xbfe/0xf50 [ 47.726462][ C1] tcp_v4_do_rcv+0x381/0x4e0 [ 47.731042][ C1] __release_sock+0x135/0x1e0 [ 47.735687][ C1] [ 47.737989][ C1] Reported by Kernel Concurrency Sanitizer on: [ 47.744128][ C1] CPU: 1 PID: 7155 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0 [ 47.751581][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.761626][ C1] ================================================================== [ 47.769661][ C1] Kernel panic - not syncing: panic_on_warn set ... [ 47.776226][ C1] CPU: 1 PID: 7155 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0 [ 47.783652][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 47.793681][ C1] Call Trace: [ 47.796958][ C1] [ 47.799792][ C1] dump_stack+0xf5/0x159 [ 47.804010][ C1] panic+0x210/0x640 [ 47.807883][ C1] ? __tsan_read4+0x15/0x30 [ 47.812364][ C1] ? vprintk_func+0x8d/0x140 [ 47.816931][ C1] kcsan_report.cold+0xc/0x1b [ 47.821601][ C1] __kcsan_setup_watchpoint+0x3ee/0x510 [ 47.827126][ C1] ? __kcsan_setup_watchpoint+0x96/0x510 [ 47.832751][ C1] __tsan_read8+0x2c/0x30 [ 47.837071][ C1] tick_do_update_jiffies64+0x2b/0x260 [ 47.842530][ C1] tick_sched_do_timer+0xd4/0xe0 [ 47.847464][ C1] tick_sched_timer+0x43/0xe0 [ 47.852133][ C1] __hrtimer_run_queues+0x288/0x600 [ 47.857310][ C1] ? tick_sched_do_timer+0xe0/0xe0 [ 47.862399][ C1] hrtimer_interrupt+0x22a/0x480 [ 47.867322][ C1] smp_apic_timer_interrupt+0xdc/0x280 [ 47.872773][ C1] ? smp_reschedule_interrupt+0x71/0x1d0 [ 47.878397][ C1] apic_timer_interrupt+0xf/0x20 [ 47.883332][ C1] [ 47.886253][ C1] RIP: 0010:__kcsan_check_watchpoint+0xbb/0x180 [ 47.892472][ C1] Code: 8d 44 1e ff 41 89 c3 41 c1 fb 1f 41 c1 eb 1a 44 01 d8 83 e0 3f 44 29 d8 48 98 4c 8d 1c c5 20 5c 04 86 48 8b 04 c5 20 5c 04 86 <48> 83 f8 01 76 2c 48 89 c3 49 89 c7 48 c1 eb 31 49 21 cf 81 e3 ff [ 47.912073][ C1] RSP: 0018:ffffc900017cb8d0 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 47.920460][ C1] RAX: 0000000000000000 RBX: 0000000000000002 RCX: 0000ffffffffffff [ 47.928407][ C1] RDX: 0000000000000002 RSI: 0000000000000024 RDI: 00008881264a45b8 [ 47.936368][ C1] RBP: ffffc900017cb8f8 R08: 0000000000000000 R09: 00008881264a45bb [ 47.944344][ C1] R10: 00000000aaaaaaab R11: ffffffff86045d48 R12: 0000000000000000 [ 47.952310][ C1] R13: ffff8881264a45b8 R14: 0000000000000004 R15: 000000000000000f [ 47.960275][ C1] __tsan_read4+0x15/0x30 [ 47.964600][ C1] tcp_event_data_recv+0x195/0x990 [ 47.969693][ C1] tcp_rcv_established+0xbfe/0xf50 [ 47.974799][ C1] ? ipv4_dst_check+0xc6/0xf0 [ 47.979454][ C1] tcp_v4_do_rcv+0x381/0x4e0 [ 47.984023][ C1] __release_sock+0x135/0x1e0 [ 47.988681][ C1] release_sock+0x61/0x160 [ 47.993088][ C1] tcp_recvmsg+0x63b/0x1a30 [ 47.997587][ C1] inet_recvmsg+0xbb/0x250 [ 48.001979][ C1] ? __tsan_read8+0x2c/0x30 [ 48.006572][ C1] ? inet_sendpage+0x100/0x100 [ 48.011316][ C1] sock_recvmsg+0x92/0xb0 [ 48.015623][ C1] sock_read_iter+0x15f/0x1e0 [ 48.020281][ C1] new_sync_read+0x389/0x4f0 [ 48.024864][ C1] __vfs_read+0xb1/0xc0 [ 48.028998][ C1] vfs_read+0x143/0x2c0 [ 48.033135][ C1] ksys_read+0xd5/0x1b0 [ 48.037271][ C1] __x64_sys_read+0x4c/0x60 [ 48.041767][ C1] do_syscall_64+0xcc/0x370 [ 48.046250][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 48.052136][ C1] RIP: 0033:0x47c530 [ 48.056010][ 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 [ 48.075601][ C1] RSP: 002b:000000c42032b7d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 48.083990][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530 [ 48.091938][ C1] RDX: 0000000000001000 RSI: 000000c4200cc000 RDI: 0000000000000003 [ 48.099902][ C1] RBP: 000000c42032b830 R08: 0000000000000000 R09: 0000000000000000 [ 48.107849][ C1] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000002 [ 48.115797][ C1] R13: ffffffffffffffff R14: 0000000000000004 R15: ffffffffffffffff [ 48.125101][ C1] Kernel Offset: disabled [ 48.129425][ C1] Rebooting in 86400 seconds..