Warning: Permanently added '10.128.0.107' (ECDSA) to the list of known hosts. 2019/10/04 12:40:03 fuzzer started 2019/10/04 12:40:04 dialing manager at 10.128.0.105:38119 2019/10/04 12:40:04 syscalls: 2523 2019/10/04 12:40:04 code coverage: enabled 2019/10/04 12:40:04 comparison tracing: enabled 2019/10/04 12:40:04 extra coverage: extra coverage is not supported by the kernel 2019/10/04 12:40:04 setuid sandbox: enabled 2019/10/04 12:40:04 namespace sandbox: enabled 2019/10/04 12:40:04 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/04 12:40:04 fault injection: enabled 2019/10/04 12:40:04 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/04 12:40:04 net packet injection: enabled 2019/10/04 12:40:04 net device setup: enabled 2019/10/04 12:40:04 concurrency sanitizer: enabled syzkaller login: [ 53.083598][ T7291] ================================================================== [ 53.091856][ T7291] BUG: KCSAN: data-race in ep_poll+0x5a2/0x900 and ep_poll_callback+0x5e7/0x6a0 [ 53.101116][ T7291] [ 53.103430][ T7291] write to 0xffff888126efd290 of 8 bytes by interrupt on cpu 0: [ 53.111046][ T7291] ep_poll_callback+0x5e7/0x6a0 [ 53.115894][ T7291] __wake_up_common+0x7b/0x180 [ 53.120651][ T7291] __wake_up_common_lock+0x77/0xb0 [ 53.125860][ T7291] __wake_up_sync_key+0x19/0x20 [ 53.130881][ T7291] sock_def_readable+0xa9/0x140 [ 53.135717][ T7291] tcp_data_ready+0x7d/0xd0 [ 53.140654][ T7291] tcp_rcv_established+0xd0c/0xf50 [ 53.146545][ T7291] tcp_v4_do_rcv+0x381/0x4e0 [ 53.151120][ T7291] tcp_v4_rcv+0x1a03/0x1bf0 [ 53.155631][ T7291] ip_protocol_deliver_rcu+0x51/0x470 [ 53.161084][ T7291] ip_local_deliver_finish+0x110/0x140 [ 53.166548][ T7291] ip_local_deliver+0x133/0x210 [ 53.171402][ T7291] ip_rcv_finish+0x121/0x160 [ 53.176021][ T7291] ip_rcv+0x18f/0x1a0 [ 53.180008][ T7291] [ 53.182322][ T7291] read to 0xffff888126efd290 of 8 bytes by task 7291 on cpu 1: [ 53.190030][ T7291] ep_poll+0x5a2/0x900 [ 53.194081][ T7291] do_epoll_wait+0x162/0x180 [ 53.198761][ T7291] __x64_sys_epoll_pwait+0xcd/0x170 [ 53.208117][ T7291] do_syscall_64+0xcf/0x2f0 [ 53.212697][ T7291] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.218566][ T7291] [ 53.220887][ T7291] Reported by Kernel Concurrency Sanitizer on: [ 53.227044][ T7291] CPU: 1 PID: 7291 Comm: syz-fuzzer Not tainted 5.3.0+ #0 [ 53.234137][ T7291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.244258][ T7291] ================================================================== [ 53.252305][ T7291] Kernel panic - not syncing: panic_on_warn set ... [ 53.258872][ T7291] CPU: 1 PID: 7291 Comm: syz-fuzzer Not tainted 5.3.0+ #0 [ 53.265951][ T7291] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 53.275993][ T7291] Call Trace: [ 53.279281][ T7291] dump_stack+0xf5/0x159 [ 53.283504][ T7291] panic+0x209/0x639 [ 53.287411][ T7291] ? vprintk_func+0x8d/0x140 [ 53.291980][ T7291] kcsan_report.cold+0x57/0xeb [ 53.296723][ T7291] __kcsan_setup_watchpoint+0x342/0x500 [ 53.302246][ T7291] __tsan_read8+0x2c/0x30 [ 53.306566][ T7291] ep_poll+0x5a2/0x900 [ 53.311174][ T7291] ? wake_up_q+0x70/0x70 [ 53.315440][ T7291] do_epoll_wait+0x162/0x180 [ 53.320044][ T7291] __x64_sys_epoll_pwait+0xcd/0x170 [ 53.325225][ T7291] do_syscall_64+0xcf/0x2f0 [ 53.329710][ T7291] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 53.336359][ T7291] RIP: 0033:0x45b300 [ 53.340237][ T7291] 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 [ 53.359994][ T7291] RSP: 002b:000000c42004d860 EFLAGS: 00000246 ORIG_RAX: 0000000000000119 [ 53.369693][ T7291] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 000000000045b300 [ 53.377946][ T7291] RDX: 0000000000000080 RSI: 000000c42004d8a0 RDI: 0000000000000004 [ 53.386010][ T7291] RBP: 000000c42004dea0 R08: 0000000000000000 R09: 0000000000000000 [ 53.393957][ T7291] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000040 [ 53.402019][ T7291] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff [ 53.411495][ T7291] Kernel Offset: disabled [ 53.415830][ T7291] Rebooting in 86400 seconds..