Warning: Permanently added '10.128.0.69' (ECDSA) to the list of known hosts. 2019/10/15 06:54:43 fuzzer started 2019/10/15 06:54:44 dialing manager at 10.128.0.105:33683 2019/10/15 06:54:44 syscalls: 2523 2019/10/15 06:54:44 code coverage: enabled 2019/10/15 06:54:44 comparison tracing: enabled 2019/10/15 06:54:44 extra coverage: extra coverage is not supported by the kernel 2019/10/15 06:54:44 setuid sandbox: enabled 2019/10/15 06:54:44 namespace sandbox: enabled 2019/10/15 06:54:44 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/15 06:54:44 fault injection: enabled 2019/10/15 06:54:44 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/15 06:54:44 net packet injection: enabled 2019/10/15 06:54:44 net device setup: enabled 2019/10/15 06:54:44 concurrency sanitizer: enabled syzkaller login: [ 48.995611][ C0] ================================================================== [ 49.003734][ C0] BUG: KCSAN: data-race in tick_do_update_jiffies64 / tick_do_update_jiffies64 [ 49.012710][ C0] [ 49.015017][ C0] write to 0xffffffff8603f008 of 8 bytes by interrupt on cpu 1: [ 49.022633][ C0] tick_do_update_jiffies64+0x105/0x260 [ 49.028155][ C0] tick_sched_do_timer+0xd4/0xe0 [ 49.033070][ C0] tick_sched_timer+0x43/0xe0 [ 49.037726][ C0] __hrtimer_run_queues+0x288/0x600 [ 49.042905][ C0] hrtimer_interrupt+0x22a/0x480 [ 49.047821][ C0] smp_apic_timer_interrupt+0xdc/0x280 [ 49.053262][ C0] apic_timer_interrupt+0xf/0x20 [ 49.058187][ C0] __kcsan_check_watchpoint+0xbb/0x180 [ 49.063615][ C0] __tsan_read4+0x15/0x30 [ 49.067920][ C0] ipv4_dst_check+0xa8/0xf0 [ 49.072409][ C0] tcp_v4_early_demux+0x32a/0x400 [ 49.077418][ C0] ip_rcv_finish_core.isra.0+0x2f1/0xaf0 [ 49.083021][ C0] ip_rcv_finish+0xe5/0x160 [ 49.087497][ C0] ip_rcv+0x18f/0x1a0 [ 49.091459][ C0] [ 49.093767][ C0] read to 0xffffffff8603f008 of 8 bytes by interrupt on cpu 0: [ 49.101284][ C0] tick_do_update_jiffies64+0x2b/0x260 [ 49.106719][ C0] tick_sched_do_timer+0xd4/0xe0 [ 49.111632][ C0] tick_sched_timer+0x43/0xe0 [ 49.116287][ C0] __hrtimer_run_queues+0x288/0x600 [ 49.121457][ C0] hrtimer_interrupt+0x22a/0x480 [ 49.126373][ C0] smp_apic_timer_interrupt+0xdc/0x280 [ 49.131806][ C0] apic_timer_interrupt+0xf/0x20 [ 49.136716][ C0] __kcsan_setup_watchpoint+0x3c/0x510 [ 49.142144][ C0] __tsan_read4+0x2c/0x30 [ 49.146448][ C0] ktime_get+0x12f/0x200 [ 49.150681][ C0] tcp_mstamp_refresh+0x1d/0x70 [ 49.155506][ C0] tcp_rcv_space_adjust+0x4f/0x4c0 [ 49.160605][ C0] tcp_recvmsg+0xdaa/0x1a30 [ 49.165087][ C0] [ 49.167399][ C0] Reported by Kernel Concurrency Sanitizer on: [ 49.173539][ C0] CPU: 0 PID: 7278 Comm: syz-fuzzer Not tainted 5.3.0+ #0 [ 49.180650][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.190687][ C0] ================================================================== [ 49.198769][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 49.205339][ C0] CPU: 0 PID: 7278 Comm: syz-fuzzer Not tainted 5.3.0+ #0 [ 49.212417][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 49.222475][ C0] Call Trace: [ 49.225735][ C0] [ 49.228575][ C0] dump_stack+0xf5/0x159 [ 49.232802][ C0] panic+0x209/0x639 [ 49.236688][ C0] ? __tsan_read4+0x2c/0x30 [ 49.241171][ C0] ? vprintk_func+0x8d/0x140 [ 49.245765][ C0] kcsan_report.cold+0xc/0x1b [ 49.250422][ C0] __kcsan_setup_watchpoint+0x3ee/0x510 [ 49.255946][ C0] ? __kcsan_setup_watchpoint+0x96/0x510 [ 49.261580][ C0] __tsan_read8+0x2c/0x30 [ 49.265894][ C0] tick_do_update_jiffies64+0x2b/0x260 [ 49.271345][ C0] tick_sched_do_timer+0xd4/0xe0 [ 49.276263][ C0] tick_sched_timer+0x43/0xe0 [ 49.281194][ C0] __hrtimer_run_queues+0x288/0x600 [ 49.286376][ C0] ? tick_sched_do_timer+0xe0/0xe0 [ 49.291483][ C0] hrtimer_interrupt+0x22a/0x480 [ 49.296420][ C0] smp_apic_timer_interrupt+0xdc/0x280 [ 49.301863][ C0] apic_timer_interrupt+0xf/0x20 [ 49.306860][ C0] [ 49.309783][ C0] RIP: 0010:__kcsan_setup_watchpoint+0x3c/0x510 [ 49.316014][ C0] Code: 53 89 d3 48 83 ec 18 66 0f 1f 44 00 00 65 8b 05 42 96 ae 7e a9 00 01 1f 00 75 3c 65 48 8b 04 25 40 6c 01 00 8b 88 e4 09 00 00 <85> c9 0f 8f e6 01 00 00 8b 90 e8 09 00 00 85 d2 7f 09 80 b8 ec 09 [ 49.335609][ C0] RSP: 0018:ffffc9000161f990 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 49.343997][ C0] RAX: ffff88812323c040 RBX: 0000000000000000 RCX: 00000000000003e1 [ 49.351972][ C0] RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffffffff8603db24 [ 49.359922][ C0] RBP: ffffc9000161f9d0 R08: 0000000000000000 R09: 0000ffff8603db27 [ 49.368573][ C0] R10: 00000000aaaaaaab R11: ffffffff86042e00 R12: 0000000000000004 [ 49.376525][ C0] R13: ffffffff8603db24 R14: ffff888124a08300 R15: 000a6c4ce8fabc76 [ 49.384496][ C0] ? __sanitizer_cov_trace_switch+0x49/0x80 [ 49.390631][ C0] __tsan_read4+0x2c/0x30 [ 49.394945][ C0] ktime_get+0x12f/0x200 [ 49.399314][ C0] tcp_mstamp_refresh+0x1d/0x70 [ 49.404160][ C0] tcp_rcv_space_adjust+0x4f/0x4c0 [ 49.409275][ C0] ? __kcsan_setup_watchpoint+0x96/0x510 [ 49.414897][ C0] ? skb_copy_datagram_iter+0x6e/0x170 [ 49.420336][ C0] tcp_recvmsg+0xdaa/0x1a30 [ 49.424827][ C0] inet_recvmsg+0xbb/0x250 [ 49.429237][ C0] ? __tsan_read8+0x2c/0x30 [ 49.433730][ C0] ? inet_sendpage+0x100/0x100 [ 49.438549][ C0] sock_recvmsg+0x92/0xb0 [ 49.442973][ C0] sock_read_iter+0x15f/0x1e0 [ 49.447859][ C0] new_sync_read+0x389/0x4f0 [ 49.452553][ C0] __vfs_read+0xb1/0xc0 [ 49.456893][ C0] vfs_read+0x143/0x2c0 [ 49.461060][ C0] ksys_read+0xd5/0x1b0 [ 49.465204][ C0] __x64_sys_read+0x4c/0x60 [ 49.469687][ C0] do_syscall_64+0xcf/0x2f0 [ 49.474282][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 49.480151][ C0] RIP: 0033:0x47c530 [ 49.484030][ C0] 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 [ 49.503617][ C0] RSP: 002b:000000c4203c37d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000 [ 49.512022][ C0] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530 [ 49.519979][ C0] RDX: 0000000000001000 RSI: 000000c42016c000 RDI: 0000000000000003 [ 49.527935][ C0] RBP: 000000c4203c3830 R08: 0000000000000000 R09: 0000000000000000 [ 49.535885][ C0] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000002 [ 49.543847][ C0] R13: ffffffffffffffff R14: 0000000000000004 R15: ffffffffffffffff [ 49.553104][ C0] Kernel Offset: disabled [ 49.557426][ C0] Rebooting in 86400 seconds..