Warning: Permanently added '10.128.0.49' (ECDSA) to the list of known hosts. 2020/05/29 13:48:52 fuzzer started 2020/05/29 13:48:52 dialing manager at 10.128.0.105:37521 2020/05/29 13:48:52 syscalls: 3055 2020/05/29 13:48:52 code coverage: enabled 2020/05/29 13:48:52 comparison tracing: enabled 2020/05/29 13:48:52 extra coverage: enabled 2020/05/29 13:48:52 setuid sandbox: enabled 2020/05/29 13:48:52 namespace sandbox: enabled 2020/05/29 13:48:52 Android sandbox: /sys/fs/selinux/policy does not exist 2020/05/29 13:48:52 fault injection: enabled 2020/05/29 13:48:52 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/05/29 13:48:52 net packet injection: enabled 2020/05/29 13:48:52 net device setup: enabled 2020/05/29 13:48:52 concurrency sanitizer: enabled 2020/05/29 13:48:52 devlink PCI setup: PCI device 0000:00:10.0 is not available 2020/05/29 13:48:52 USB emulation: enabled 2020/05/29 13:48:53 adding functions to KCSAN blacklist: 'futex_wait_queue_me' 'page_counter_charge' 'find_get_pages_range_tag' [ 53.617854][ T8918] ================================================================== [ 53.625959][ T8918] BUG: KCSAN: data-race in ep_poll / ep_poll_callback [ 53.632690][ T8918] [ 53.635033][ T8918] write to 0xffff888121bb8710 of 8 bytes by interrupt on cpu 1: [ 53.642641][ T8918] ep_poll_callback+0x5f2/0x6c0 [ 53.647469][ T8918] __wake_up_common+0x76/0x180 [ 53.652295][ T8918] __wake_up_common_lock+0x77/0xb0 [ 53.657393][ T8918] sock_def_readable+0x9d/0x130 [ 53.662259][ T8918] tcp_data_ready+0x76/0xc0 [ 53.666737][ T8918] tcp_rcv_established+0xcb8/0xee0 [ 53.671833][ T8918] tcp_v4_do_rcv+0x396/0x4f0 [ 53.676408][ T8918] tcp_v4_rcv+0x1c55/0x1e10 [ 53.680887][ T8918] ip_protocol_deliver_rcu+0x4b/0x410 [ 53.686234][ T8918] ip_local_deliver_finish+0xf3/0x120 [ 53.691592][ T8918] ip_local_deliver+0x135/0x220 [ 53.696417][ T8918] ip_sublist_rcv_finish+0xf0/0x140 [ 53.701591][ T8918] ip_sublist_rcv+0x3f8/0x530 [ 53.706243][ T8918] ip_list_rcv+0x2f3/0x321 [ 53.710637][ T8918] __netif_receive_skb_list_core+0x368/0x5c0 [ 53.716607][ T8918] netif_receive_skb_list_internal+0x5c7/0x810 [ 53.722835][ T8918] gro_normal_list.part.0+0x37/0xa0 [ 53.728098][ T8918] gro_normal_one+0x14c/0x160 [ 53.732755][ T8918] napi_gro_receive+0x27d/0x2f0 [ 53.737585][ T8918] receive_buf+0x24c/0x3420 [ 53.742074][ T8918] virtnet_poll+0x343/0x790 [ 53.746552][ T8918] net_rx_action+0x3ad/0xac0 [ 53.751128][ T8918] __do_softirq+0x118/0x34a [ 53.755606][ T8918] run_ksoftirqd+0x41/0x60 [ 53.759997][ T8918] smpboot_thread_fn+0x374/0x4a0 [ 53.764907][ T8918] kthread+0x203/0x230 [ 53.768952][ T8918] ret_from_fork+0x1f/0x30 [ 53.773435][ T8918] [ 53.776359][ T8918] read to 0xffff888121bb8710 of 8 bytes by task 8918 on cpu 0: [ 53.783877][ T8918] ep_poll+0x5ad/0x910 [ 53.787921][ T8918] do_epoll_wait+0x15a/0x180 [ 53.792487][ T8918] __x64_sys_epoll_pwait+0xc6/0x170 [ 53.797664][ T8918] do_syscall_64+0xc7/0x3b0 [ 53.802145][ T8918] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.808017][ T8918] [ 53.810325][ T8918] Reported by Kernel Concurrency Sanitizer on: [ 53.816463][ T8918] CPU: 0 PID: 8918 Comm: syz-fuzzer Not tainted 5.7.0-rc1-syzkaller #0 [ 53.824669][ T8918] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.834783][ T8918] ================================================================== [ 53.842815][ T8918] Kernel panic - not syncing: panic_on_warn set ... [ 53.849380][ T8918] CPU: 0 PID: 8918 Comm: syz-fuzzer Not tainted 5.7.0-rc1-syzkaller #0 [ 53.857596][ T8918] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.867786][ T8918] Call Trace: [ 53.871060][ T8918] dump_stack+0x11d/0x187 [ 53.875370][ T8918] panic+0x210/0x640 [ 53.879263][ T8918] ? vprintk_func+0x89/0x13a [ 53.883835][ T8918] kcsan_report.cold+0xc/0x1a [ 53.888506][ T8918] kcsan_setup_watchpoint+0x3fb/0x440 [ 53.893857][ T8918] ep_poll+0x5ad/0x910 [ 53.897909][ T8918] ? wake_up_q+0x90/0x90 [ 53.902129][ T8918] do_epoll_wait+0x15a/0x180 [ 53.906697][ T8918] __x64_sys_epoll_pwait+0xc6/0x170 [ 53.911878][ T8918] do_syscall_64+0xc7/0x3b0 [ 53.916362][ T8918] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.922248][ T8918] RIP: 0033:0x469240 [ 53.926135][ T8918] Code: 0f 05 89 44 24 20 c3 cc cc cc 8b 7c 24 08 48 8b 74 24 10 8b 54 24 18 44 8b 54 24 1c 49 c7 c0 00 00 00 00 b8 19 01 00 00 0f 05 <89> 44 24 20 c3 cc cc cc cc cc cc cc cc cc cc cc 8b 7c 24 08 48 c7 [ 53.945725][ T8918] RSP: 002b:000000c0003d37f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000119 [ 53.954122][ T8918] RAX: ffffffffffffffda RBX: 00000000000000c4 RCX: 0000000000469240 [ 53.962069][ T8918] RDX: 0000000000000080 RSI: 000000c0003d3840 RDI: 0000000000000003 [ 53.970025][ T8918] RBP: 000000c0003d3e40 R08: 0000000000000000 R09: 0000000000000000 [ 53.978059][ T8918] R10: 00000000000000c4 R11: 0000000000000246 R12: 0000000000000003 [ 53.986024][ T8918] R13: 000000c00028e180 R14: 0000000000000004 R15: 0000000000000004 [ 53.995227][ T8918] Kernel Offset: disabled [ 53.999545][ T8918] Rebooting in 86400 seconds..