Warning: Permanently added '10.128.0.116' (ECDSA) to the list of known hosts. 2019/10/22 04:01:20 fuzzer started 2019/10/22 04:01:22 dialing manager at 10.128.0.105:37053 2019/10/22 04:01:22 syscalls: 2524 2019/10/22 04:01:22 code coverage: enabled 2019/10/22 04:01:22 comparison tracing: enabled 2019/10/22 04:01:22 extra coverage: extra coverage is not supported by the kernel 2019/10/22 04:01:22 setuid sandbox: enabled 2019/10/22 04:01:22 namespace sandbox: enabled 2019/10/22 04:01:22 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/22 04:01:22 fault injection: enabled 2019/10/22 04:01:22 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/22 04:01:22 net packet injection: enabled 2019/10/22 04:01:22 net device setup: enabled 2019/10/22 04:01:22 concurrency sanitizer: enabled syzkaller login: [ 58.427138][ C0] ================================================================== [ 58.435374][ C0] BUG: KCSAN: data-race in tick_sched_do_timer / tick_sched_do_timer [ 58.443566][ C0] [ 58.445890][ C0] read to 0xffffffff85cb2790 of 4 bytes by interrupt on cpu 1: [ 58.453427][ C0] tick_sched_do_timer+0x33/0xe0 [ 58.458367][ C0] tick_sched_timer+0x43/0xe0 [ 58.463023][ C0] __hrtimer_run_queues+0x288/0x600 [ 58.468198][ C0] hrtimer_interrupt+0x22a/0x480 [ 58.474071][ C0] smp_apic_timer_interrupt+0xdc/0x280 [ 58.479506][ C0] apic_timer_interrupt+0xf/0x20 [ 58.484422][ C0] __kcsan_setup_watchpoint+0x4/0x4a0 [ 58.489775][ C0] __tsan_read8+0x2c/0x30 [ 58.494097][ C0] tcp_v4_rcv+0x1792/0x1bb0 [ 58.498592][ C0] ip_protocol_deliver_rcu+0x4d/0x420 [ 58.503959][ C0] ip_local_deliver_finish+0x110/0x140 [ 58.509421][ C0] ip_local_deliver+0x133/0x210 [ 58.514258][ C0] ip_rcv_finish+0x121/0x160 [ 58.518824][ C0] ip_rcv+0x18f/0x1a0 [ 58.522776][ C0] [ 58.525083][ C0] write to 0xffffffff85cb2790 of 4 bytes by interrupt on cpu 0: [ 58.532688][ C0] tick_sched_do_timer+0xc0/0xe0 [ 58.537601][ C0] tick_sched_timer+0x43/0xe0 [ 58.542254][ C0] __hrtimer_run_queues+0x288/0x600 [ 58.547424][ C0] hrtimer_interrupt+0x22a/0x480 [ 58.552341][ C0] smp_apic_timer_interrupt+0xdc/0x280 [ 58.557775][ C0] apic_timer_interrupt+0xf/0x20 [ 58.562698][ C0] __kcsan_check_watchpoint+0xa2/0x180 [ 58.568131][ C0] __tsan_read8+0x15/0x30 [ 58.572437][ C0] __nf_conntrack_find_get+0x4bf/0x880 [ 58.577883][ C0] nf_conntrack_in+0x2ef/0xa80 [ 58.582625][ C0] ipv4_conntrack_local+0xbe/0x130 [ 58.587712][ C0] nf_hook_slow+0x83/0x160 [ 58.592105][ C0] __ip_local_out+0x1f7/0x2b0 [ 58.596751][ C0] [ 58.599067][ C0] Reported by Kernel Concurrency Sanitizer on: [ 58.605222][ C0] CPU: 0 PID: 7218 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0 [ 58.612707][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.622753][ C0] ================================================================== [ 58.630790][ C0] Kernel panic - not syncing: panic_on_warn set ... [ 58.637451][ C0] CPU: 0 PID: 7218 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0 [ 58.644883][ C0] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 58.654935][ C0] Call Trace: [ 58.658207][ C0] [ 58.661058][ C0] dump_stack+0xf5/0x159 [ 58.665277][ C0] panic+0x210/0x640 [ 58.669167][ C0] ? __nf_conntrack_find_get+0x4bf/0x880 [ 58.674796][ C0] ? vprintk_func+0x8d/0x140 [ 58.679369][ C0] kcsan_report.cold+0xc/0x10 [ 58.684038][ C0] __kcsan_setup_watchpoint+0x32e/0x4a0 [ 58.689562][ C0] __tsan_write4+0x32/0x40 [ 58.693972][ C0] tick_sched_do_timer+0xc0/0xe0 [ 58.698986][ C0] tick_sched_timer+0x43/0xe0 [ 58.703651][ C0] __hrtimer_run_queues+0x288/0x600 [ 58.708845][ C0] ? tick_sched_do_timer+0xe0/0xe0 [ 58.713944][ C0] hrtimer_interrupt+0x22a/0x480 [ 58.718876][ C0] smp_apic_timer_interrupt+0xdc/0x280 [ 58.724321][ C0] ? smp_reschedule_interrupt+0x71/0x1d0 [ 58.730063][ C0] apic_timer_interrupt+0xf/0x20 [ 58.735008][ C0] [ 58.737937][ C0] RIP: 0010:__kcsan_check_watchpoint+0xa2/0x180 [ 58.744188][ C0] Code: 4c 37 ff 8d 41 01 48 89 c1 49 0f af c2 89 cb 48 c1 e8 21 8d 04 40 29 c3 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 [ 58.764129][ C0] RSP: 0018:ffffc900016d35c8 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 [ 58.772685][ C0] RAX: 000000000000001c RBX: 0000000000000002 RCX: 0000000000000002 [ 58.780655][ C0] RDX: 0000ffffffffffff RSI: 000000000000001b RDI: 00008881264db790 [ 58.788615][ C0] RBP: ffffc900016d35f0 R08: 0000000000000000 R09: 00008881264db797 [ 58.796575][ C0] R10: 00000000aaaaaaab R11: 0000000000000000 R12: 0000000000000000 [ 58.804534][ C0] R13: ffff8881264db790 R14: 0000000000000008 R15: 0000000000000000 [ 58.812525][ C0] __tsan_read8+0x15/0x30 [ 58.816846][ C0] __nf_conntrack_find_get+0x4bf/0x880 [ 58.822289][ C0] nf_conntrack_in+0x2ef/0xa80 [ 58.827050][ C0] ipv4_conntrack_local+0xbe/0x130 [ 58.832414][ C0] nf_hook_slow+0x83/0x160 [ 58.836807][ C0] ? nf_ct_tcp_fixup+0xe0/0xe0 [ 58.841551][ C0] __ip_local_out+0x1f7/0x2b0 [ 58.846208][ C0] ? constant_test_bit+0x30/0x30 [ 58.851130][ C0] ip_local_out+0x31/0x90 [ 58.855439][ C0] __ip_queue_xmit+0x3a8/0xa40 [ 58.860183][ C0] ip_queue_xmit+0x45/0x60 [ 58.864589][ C0] __tcp_transmit_skb+0xe81/0x1d60 [ 58.869692][ C0] __tcp_send_ack+0x246/0x300 [ 58.874345][ C0] tcp_send_ack+0x34/0x40 [ 58.878653][ C0] tcp_cleanup_rbuf+0x130/0x360 [ 58.883481][ C0] tcp_recvmsg+0x633/0x1a30 [ 58.887967][ C0] ? preempt_schedule_common+0x37/0x90 [ 58.893405][ C0] inet_recvmsg+0xbb/0x250 [ 58.897796][ C0] ? __tsan_read8+0x2c/0x30 [ 58.902275][ C0] ? inet_sendpage+0x100/0x100 [ 58.907015][ C0] sock_recvmsg+0x92/0xb0 [ 58.911339][ C0] sock_read_iter+0x15f/0x1e0 [ 58.916013][ C0] new_sync_read+0x389/0x4f0 [ 58.920586][ C0] __vfs_read+0xb1/0xc0 [ 58.924732][ C0] vfs_read+0x143/0x2c0 [ 58.928864][ C0] ksys_read+0xd5/0x1b0 [ 58.933000][ C0] __x64_sys_read+0x4c/0x60 [ 58.937572][ C0] do_syscall_64+0xcc/0x370 [ 58.942060][ C0] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 58.947926][ C0] RIP: 0033:0x47c530 [ 58.951814][ 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 [ 58.971571][ C0] RSP: 002b:000000c4203df810 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 58.979966][ C0] RAX: ffffffffffffffda RBX: 000000c4202ec000 RCX: 000000000047c530 [ 58.987917][ C0] RDX: 0000000000001000 RSI: 000000c4202b0000 RDI: 0000000000000003 [ 58.995881][ C0] RBP: 000000c4203df868 R08: 0000000000000000 R09: 0000000000000000 [ 59.003857][ C0] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000003 [ 59.011867][ C0] R13: 000000c4200216e0 R14: 0000000000000002 R15: ffffffffffffffff [ 59.021317][ C0] Kernel Offset: disabled [ 59.025652][ C0] Rebooting in 86400 seconds..