Warning: Permanently added '10.128.10.40' (ECDSA) to the list of known hosts. 2020/06/16 10:54:53 fuzzer started 2020/06/16 10:54:53 dialing manager at 10.128.0.105:37643 2020/06/16 10:54:53 syscalls: 3085 2020/06/16 10:54:53 code coverage: enabled 2020/06/16 10:54:53 comparison tracing: enabled 2020/06/16 10:54:53 extra coverage: enabled 2020/06/16 10:54:53 setuid sandbox: enabled 2020/06/16 10:54:53 namespace sandbox: enabled 2020/06/16 10:54:53 Android sandbox: /sys/fs/selinux/policy does not exist 2020/06/16 10:54:53 fault injection: enabled 2020/06/16 10:54:53 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2020/06/16 10:54:53 net packet injection: enabled 2020/06/16 10:54:53 net device setup: enabled 2020/06/16 10:54:53 concurrency sanitizer: enabled 2020/06/16 10:54:53 devlink PCI setup: PCI device 0000:00:10.0 is not available 2020/06/16 10:54:53 USB emulation: enabled 2020/06/16 10:54:53 suppressing KCSAN reports in functions: 'copy_process' 'blk_mq_get_request' 'generic_file_read_iter' 'alloc_pid' [ 52.409913][ T8902] ================================================================== [ 52.418045][ T8902] BUG: KCSAN: data-race in ep_poll / ep_poll_callback [ 52.424775][ T8902] [ 52.427103][ T8902] write to 0xffff8881269b0050 of 8 bytes by interrupt on cpu 0: [ 52.434713][ T8902] ep_poll_callback+0x5f2/0x6c0 [ 52.439540][ T8902] __wake_up_common+0x76/0x180 [ 52.444281][ T8902] __wake_up_common_lock+0x77/0xb0 [ 52.449558][ T8902] sock_def_readable+0x9d/0x130 [ 52.454419][ T8902] tcp_data_ready+0x76/0xc0 [ 52.459013][ T8902] tcp_rcv_established+0xcb8/0xee0 [ 52.464118][ T8902] tcp_v4_do_rcv+0x396/0x4f0 [ 52.468694][ T8902] tcp_v4_rcv+0x1c55/0x1e10 [ 52.473202][ T8902] ip_protocol_deliver_rcu+0x4b/0x410 [ 52.478559][ T8902] ip_local_deliver_finish+0xf3/0x120 [ 52.483917][ T8902] ip_local_deliver+0x135/0x220 [ 52.488845][ T8902] ip_sublist_rcv_finish+0xf0/0x140 [ 52.494173][ T8902] ip_sublist_rcv+0x3f8/0x530 [ 52.498920][ T8902] ip_list_rcv+0x2f3/0x321 [ 52.503468][ T8902] __netif_receive_skb_list_core+0x368/0x5c0 [ 52.509795][ T8902] netif_receive_skb_list_internal+0x5c7/0x810 [ 52.516027][ T8902] gro_normal_list.part.0+0x37/0xa0 [ 52.521724][ T8902] gro_normal_one+0x14c/0x160 [ 52.528067][ T8902] napi_gro_receive+0x27d/0x2f0 [ 52.532991][ T8902] receive_buf+0x24c/0x3420 [ 52.537479][ T8902] virtnet_poll+0x343/0x790 [ 52.541966][ T8902] net_rx_action+0x3ad/0xac0 [ 52.547077][ T8902] __do_softirq+0x118/0x34a [ 52.551565][ T8902] run_ksoftirqd+0x41/0x60 [ 52.556033][ T8902] smpboot_thread_fn+0x374/0x4a0 [ 52.560954][ T8902] kthread+0x203/0x230 [ 52.565360][ T8902] ret_from_fork+0x1f/0x30 [ 52.570707][ T8902] [ 52.574853][ T8902] read to 0xffff8881269b0050 of 8 bytes by task 8902 on cpu 1: [ 52.582908][ T8902] ep_poll+0x5ad/0x910 [ 52.586990][ T8902] do_epoll_wait+0x15a/0x180 [ 52.591567][ T8902] __x64_sys_epoll_pwait+0xc6/0x170 [ 52.596757][ T8902] do_syscall_64+0xc7/0x3b0 [ 52.602029][ T8902] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 52.608022][ T8902] [ 52.610332][ T8902] Reported by Kernel Concurrency Sanitizer on: [ 52.616471][ T8902] CPU: 1 PID: 8902 Comm: syz-fuzzer Not tainted 5.7.0-rc1-syzkaller #0 [ 52.624773][ T8902] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.634811][ T8902] ================================================================== [ 52.642874][ T8902] Kernel panic - not syncing: panic_on_warn set ... [ 52.649452][ T8902] CPU: 1 PID: 8902 Comm: syz-fuzzer Not tainted 5.7.0-rc1-syzkaller #0 [ 52.657675][ T8902] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 52.667717][ T8902] Call Trace: [ 52.671007][ T8902] dump_stack+0x11d/0x187 [ 52.675334][ T8902] panic+0x210/0x640 [ 52.679222][ T8902] ? vprintk_func+0x89/0x13a [ 52.683824][ T8902] kcsan_report.cold+0xc/0x1a [ 52.688499][ T8902] kcsan_setup_watchpoint+0x3fb/0x440 [ 52.693882][ T8902] ep_poll+0x5ad/0x910 [ 52.697948][ T8902] ? wake_up_q+0x90/0x90 [ 52.702181][ T8902] do_epoll_wait+0x15a/0x180 [ 52.706777][ T8902] __x64_sys_epoll_pwait+0xc6/0x170 [ 52.711970][ T8902] do_syscall_64+0xc7/0x3b0 [ 52.716463][ T8902] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 52.722338][ T8902] RIP: 0033:0x469240 [ 52.726229][ T8902] 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 [ 52.745819][ T8902] RSP: 002b:000000c0000497f0 EFLAGS: 00000246 ORIG_RAX: 0000000000000119 [ 52.754307][ T8902] RAX: ffffffffffffffda RBX: 0000000000000236 RCX: 0000000000469240 [ 52.762272][ T8902] RDX: 0000000000000080 RSI: 000000c000049840 RDI: 0000000000000003 [ 52.770253][ T8902] RBP: 000000c000049e40 R08: 0000000000000000 R09: 0000000000000000 [ 52.778210][ T8902] R10: 0000000000000236 R11: 0000000000000246 R12: 0000000000000003 [ 52.786168][ T8902] R13: 000000c000000f00 R14: 00000052055f3157 R15: 0000000000000002 [ 52.795664][ T8902] Kernel Offset: disabled [ 52.800341][ T8902] Rebooting in 86400 seconds..