Warning: Permanently added '10.128.10.17' (ECDSA) to the list of known hosts. 2019/10/13 13:30:02 fuzzer started 2019/10/13 13:30:04 dialing manager at 10.128.0.105:40973 2019/10/13 13:30:04 syscalls: 2523 2019/10/13 13:30:04 code coverage: enabled 2019/10/13 13:30:04 comparison tracing: enabled 2019/10/13 13:30:04 extra coverage: extra coverage is not supported by the kernel 2019/10/13 13:30:04 setuid sandbox: enabled 2019/10/13 13:30:04 namespace sandbox: enabled 2019/10/13 13:30:04 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/13 13:30:04 fault injection: enabled 2019/10/13 13:30:04 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/13 13:30:04 net packet injection: enabled 2019/10/13 13:30:04 net device setup: enabled 2019/10/13 13:30:04 concurrency sanitizer: enabled syzkaller login: [ 45.814771][ C1] ================================================================== [ 45.822909][ C1] BUG: KCSAN: data-race in tick_sched_do_timer / tick_sched_do_timer [ 45.830957][ C1] [ 45.834658][ C1] write to 0xffffffff85caf310 of 4 bytes by interrupt on cpu 0: [ 45.842284][ C1] tick_sched_do_timer+0xc0/0xe0 [ 45.847198][ C1] tick_sched_timer+0x43/0xe0 [ 45.851870][ C1] __hrtimer_run_queues+0x288/0x600 [ 45.857065][ C1] hrtimer_interrupt+0x22a/0x480 [ 45.861982][ C1] smp_apic_timer_interrupt+0xdc/0x280 [ 45.869600][ C1] apic_timer_interrupt+0xf/0x20 [ 45.874520][ C1] __kcsan_check_watchpoint+0x95/0x180 [ 45.880498][ C1] __tsan_read8+0x15/0x30 [ 45.884831][ C1] tcp_v4_inbound_md5_hash+0x41/0x230 [ 45.890191][ C1] tcp_v4_rcv+0x16c0/0x1bf0 [ 45.895223][ C1] ip_protocol_deliver_rcu+0x51/0x470 [ 45.900581][ C1] ip_local_deliver_finish+0x110/0x140 [ 45.906136][ C1] ip_local_deliver+0x133/0x210 [ 45.910972][ C1] ip_rcv_finish+0x121/0x160 [ 45.915552][ C1] [ 45.917860][ C1] read to 0xffffffff85caf310 of 4 bytes by interrupt on cpu 1: [ 45.925380][ C1] tick_sched_do_timer+0x33/0xe0 [ 45.930295][ C1] tick_sched_timer+0x43/0xe0 [ 45.934979][ C1] __hrtimer_run_queues+0x288/0x600 [ 45.940263][ C1] hrtimer_interrupt+0x22a/0x480 [ 45.945190][ C1] smp_apic_timer_interrupt+0xdc/0x280 [ 45.951098][ C1] apic_timer_interrupt+0xf/0x20 [ 45.956028][ C1] __sanitizer_cov_trace_switch+0x4e/0x80 [ 45.961810][ C1] __check_object_size+0xe7/0x33f [ 45.966899][ C1] simple_copy_to_iter+0x31/0x60 [ 45.971812][ C1] __skb_datagram_iter+0x28a/0x470 [ 45.976900][ C1] skb_copy_datagram_iter+0x66/0x170 [ 45.982160][ C1] tcp_recvmsg+0x106c/0x1a30 [ 45.986747][ C1] inet_recvmsg+0xbb/0x250 [ 45.991137][ C1] [ 45.993441][ C1] Reported by Kernel Concurrency Sanitizer on: [ 45.999952][ C1] CPU: 1 PID: 7290 Comm: syz-fuzzer Not tainted 5.3.0+ #0 [ 46.007061][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.017097][ C1] ================================================================== [ 46.025148][ C1] Kernel panic - not syncing: panic_on_warn set ... [ 46.031715][ C1] CPU: 1 PID: 7290 Comm: syz-fuzzer Not tainted 5.3.0+ #0 [ 46.038795][ C1] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.049035][ C1] Call Trace: [ 46.052306][ C1] [ 46.055159][ C1] dump_stack+0xf5/0x159 [ 46.059397][ C1] panic+0x209/0x639 [ 46.063284][ C1] ? simple_copy_to_iter+0x31/0x60 [ 46.068384][ C1] ? vprintk_func+0x8d/0x140 [ 46.072962][ C1] kcsan_report.cold+0xc/0x1b [ 46.077644][ C1] __kcsan_setup_watchpoint+0x3ee/0x510 [ 46.083269][ C1] __tsan_read4+0x2c/0x30 [ 46.087579][ C1] tick_sched_do_timer+0x33/0xe0 [ 46.092493][ C1] tick_sched_timer+0x43/0xe0 [ 46.097152][ C1] __hrtimer_run_queues+0x288/0x600 [ 46.102332][ C1] ? tick_sched_do_timer+0xe0/0xe0 [ 46.107686][ C1] hrtimer_interrupt+0x22a/0x480 [ 46.112902][ C1] smp_apic_timer_interrupt+0xdc/0x280 [ 46.118517][ C1] ? smp_reschedule_interrupt+0x71/0x1d0 [ 46.124136][ C1] apic_timer_interrupt+0xf/0x20 [ 46.129070][ C1] [ 46.131994][ C1] RIP: 0010:__sanitizer_cov_trace_switch+0x4e/0x80 [ 46.139181][ C1] Code: 10 75 27 bf 03 00 00 00 4d 8b 2c 24 31 db 4d 85 ed 74 17 49 8b 74 dc 10 48 83 c3 01 48 8b 4d 08 e8 47 fe ff ff 49 39 dd 75 e9 <5b> 41 5c 41 5d 5d c3 48 83 f8 40 bf 07 00 00 00 74 cc 5b 41 5c 41 [ 46.158858][ C1] RSP: 0018:ffffc900017ff980 EFLAGS: 00000246 ORIG_RAX: ffffffffffffff13 [ 46.167381][ C1] RAX: 0000000000000000 RBX: 0000000000000003 RCX: ffffffff816c7757 [ 46.175334][ C1] RDX: 0000000000000000 RSI: 0000000000000002 RDI: 0000000000000005 [ 46.183285][ C1] RBP: ffffc900017ff998 R08: ffff888126f3e000 R09: 0000888126f3e01f [ 46.191273][ C1] R10: 00000000aaaaaaab R11: ffffffff86042e08 R12: ffffffff84e59be0 [ 46.199224][ C1] R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000000009 [ 46.207185][ C1] ? __check_object_size+0xe7/0x33f [ 46.212361][ C1] __check_object_size+0xe7/0x33f [ 46.217364][ C1] ? __kcsan_setup_watchpoint+0x96/0x510 [ 46.223014][ C1] ? __skb_free_datagram_locked+0x2e0/0x2e0 [ 46.228975][ C1] simple_copy_to_iter+0x31/0x60 [ 46.233893][ C1] __skb_datagram_iter+0x28a/0x470 [ 46.238995][ C1] ? __skb_free_datagram_locked+0x2e0/0x2e0 [ 46.244870][ C1] skb_copy_datagram_iter+0x66/0x170 [ 46.250578][ C1] tcp_recvmsg+0x106c/0x1a30 [ 46.255163][ C1] inet_recvmsg+0xbb/0x250 [ 46.259567][ C1] ? __tsan_read8+0x2c/0x30 [ 46.264059][ C1] ? inet_sendpage+0x100/0x100 [ 46.268804][ C1] sock_recvmsg+0x92/0xb0 [ 46.273110][ C1] sock_read_iter+0x15f/0x1e0 [ 46.277769][ C1] new_sync_read+0x389/0x4f0 [ 46.282342][ C1] __vfs_read+0xb1/0xc0 [ 46.286524][ C1] vfs_read+0x143/0x2c0 [ 46.290671][ C1] ksys_read+0xd5/0x1b0 [ 46.294808][ C1] __x64_sys_read+0x4c/0x60 [ 46.299305][ C1] do_syscall_64+0xcf/0x2f0 [ 46.303792][ C1] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.309669][ C1] RIP: 0033:0x47c530 [ 46.313805][ 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 [ 46.333854][ C1] RSP: 002b:000000c4208c6810 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 [ 46.342244][ C1] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530 [ 46.350205][ C1] RDX: 0000000000001000 RSI: 000000c4201d6000 RDI: 0000000000000003 [ 46.358771][ C1] RBP: 000000c4208c6868 R08: 0000000000000000 R09: 0000000000000000 [ 46.366723][ C1] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000004 [ 46.374770][ C1] R13: 000000c420082a50 R14: 0000000000000002 R15: ffffffffffffffff [ 46.384093][ C1] Kernel Offset: disabled [ 46.388503][ C1] Rebooting in 86400 seconds..