Warning: Permanently added '10.128.0.73' (ECDSA) to the list of known hosts. 2019/10/04 15:10:21 fuzzer started 2019/10/04 15:10:23 dialing manager at 10.128.0.105:44881 2019/10/04 15:10:23 syscalls: 2523 2019/10/04 15:10:23 code coverage: enabled 2019/10/04 15:10:23 comparison tracing: enabled 2019/10/04 15:10:23 extra coverage: extra coverage is not supported by the kernel 2019/10/04 15:10:23 setuid sandbox: enabled 2019/10/04 15:10:23 namespace sandbox: enabled 2019/10/04 15:10:23 Android sandbox: /sys/fs/selinux/policy does not exist 2019/10/04 15:10:23 fault injection: enabled 2019/10/04 15:10:23 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled 2019/10/04 15:10:23 net packet injection: enabled 2019/10/04 15:10:23 net device setup: enabled 2019/10/04 15:10:23 concurrency sanitizer: enabled syzkaller login: [ 46.182452][ T7284] ================================================================== [ 46.190661][ T7284] BUG: KCSAN: data-race in ep_poll / ep_poll_callback [ 46.197413][ T7284] [ 46.199743][ T7284] write to 0xffff8881232b8650 of 8 bytes by interrupt on cpu 0: [ 46.207494][ T7284] ep_poll_callback+0x5e7/0x6a0 [ 46.212349][ T7284] __wake_up_common+0x7b/0x180 [ 46.217110][ T7284] __wake_up_common_lock+0x77/0xb0 [ 46.222212][ T7284] __wake_up_sync_key+0x19/0x20 [ 46.227085][ T7284] sock_def_readable+0xa9/0x140 [ 46.231915][ T7284] tcp_data_ready+0x7d/0xd0 [ 46.236393][ T7284] tcp_rcv_established+0xd0c/0xf50 [ 46.241516][ T7284] tcp_v4_do_rcv+0x381/0x4e0 [ 46.246212][ T7284] tcp_v4_rcv+0x1a03/0x1bf0 [ 46.250703][ T7284] ip_protocol_deliver_rcu+0x51/0x470 [ 46.256090][ T7284] ip_local_deliver_finish+0x110/0x140 [ 46.261526][ T7284] ip_local_deliver+0x133/0x210 [ 46.266357][ T7284] ip_rcv_finish+0x121/0x160 [ 46.270922][ T7284] ip_rcv+0x18f/0x1a0 [ 46.274873][ T7284] [ 46.277190][ T7284] read to 0xffff8881232b8650 of 8 bytes by task 7284 on cpu 1: [ 46.284722][ T7284] ep_poll+0x98/0x900 [ 46.288689][ T7284] do_epoll_wait+0x162/0x180 [ 46.293266][ T7284] __x64_sys_epoll_pwait+0xcd/0x170 [ 46.298440][ T7284] do_syscall_64+0xcf/0x2f0 [ 46.302929][ T7284] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.308788][ T7284] [ 46.311086][ T7284] Reported by Kernel Concurrency Sanitizer on: [ 46.317213][ T7284] CPU: 1 PID: 7284 Comm: syz-fuzzer Not tainted 5.3.0+ #0 [ 46.324299][ T7284] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.334328][ T7284] ================================================================== [ 46.342377][ T7284] Kernel panic - not syncing: panic_on_warn set ... [ 46.348939][ T7284] CPU: 1 PID: 7284 Comm: syz-fuzzer Not tainted 5.3.0+ #0 [ 46.356025][ T7284] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.366053][ T7284] Call Trace: [ 46.369324][ T7284] dump_stack+0xf5/0x159 [ 46.373555][ T7284] panic+0x209/0x639 [ 46.377431][ T7284] ? vprintk_func+0x8d/0x140 [ 46.382084][ T7284] kcsan_report.cold+0x57/0xeb [ 46.386837][ T7284] __kcsan_setup_watchpoint+0x342/0x500 [ 46.392368][ T7284] __tsan_read8+0x2c/0x30 [ 46.396674][ T7284] ep_poll+0x98/0x900 [ 46.400634][ T7284] ? __fget+0xb8/0x1d0 [ 46.404683][ T7284] ? __fget_light+0xaf/0x190 [ 46.409255][ T7284] do_epoll_wait+0x162/0x180 [ 46.413826][ T7284] __x64_sys_epoll_pwait+0xcd/0x170 [ 46.419013][ T7284] do_syscall_64+0xcf/0x2f0 [ 46.423500][ T7284] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 46.429375][ T7284] RIP: 0033:0x45b300 [ 46.433248][ T7284] 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 [ 46.452826][ T7284] RSP: 002b:000000c4203bb860 EFLAGS: 00000246 ORIG_RAX: 0000000000000119 [ 46.461211][ T7284] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 000000000045b300 [ 46.469164][ T7284] RDX: 0000000000000080 RSI: 000000c4203bb8a0 RDI: 0000000000000004 [ 46.477121][ T7284] RBP: 000000c4203bbea0 R08: 0000000000000000 R09: 0000000000000000 [ 46.485065][ T7284] R10: 00000000ffffffff R11: 0000000000000246 R12: 0000000000000008 [ 46.493016][ T7284] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff [ 46.502269][ T7284] Kernel Offset: disabled [ 46.506589][ T7284] Rebooting in 86400 seconds..