Warning: Permanently added '10.128.15.205' (ECDSA) to the list of known hosts.
2019/10/11 02:25:20 fuzzer started
2019/10/11 02:25:22 dialing manager at 10.128.0.105:37331
2019/10/11 02:25:22 syscalls: 2523
2019/10/11 02:25:22 code coverage: enabled
2019/10/11 02:25:22 comparison tracing: enabled
2019/10/11 02:25:22 extra coverage: extra coverage is not supported by the kernel
2019/10/11 02:25:22 setuid sandbox: enabled
2019/10/11 02:25:22 namespace sandbox: enabled
2019/10/11 02:25:22 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/11 02:25:22 fault injection: enabled
2019/10/11 02:25:22 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/11 02:25:22 net packet injection: enabled
2019/10/11 02:25:22 net device setup: enabled
2019/10/11 02:25:22 concurrency sanitizer: enabled
syzkaller login: [   46.216899][ T7176] ==================================================================
[   46.225028][ T7176] BUG: KCSAN: data-race in tcp_poll / tcp_recvmsg
[   46.231423][ T7176] 
[   46.233742][ T7176] write to 0xffff888122a825b4 of 4 bytes by task 7178 on cpu 1:
[   46.241368][ T7176]  tcp_recvmsg+0xd86/0x1a30
[   46.246973][ T7176]  inet_recvmsg+0xbb/0x250
[   46.251374][ T7176]  sock_recvmsg+0x92/0xb0
[   46.255798][ T7176]  sock_read_iter+0x15f/0x1e0
[   46.260603][ T7176]  new_sync_read+0x389/0x4f0
[   46.265172][ T7176]  __vfs_read+0xb1/0xc0
[   46.269312][ T7176]  vfs_read+0x143/0x2c0
[   46.273451][ T7176]  ksys_read+0xd5/0x1b0
[   46.277586][ T7176]  __x64_sys_read+0x4c/0x60
[   46.282077][ T7176]  do_syscall_64+0xcf/0x2f0
[   46.286569][ T7176]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   46.292428][ T7176] 
[   46.294755][ T7176] read to 0xffff888122a825b4 of 4 bytes by task 7176 on cpu 0:
[   46.302275][ T7176]  tcp_poll+0x1cc/0x6b0
[   46.306406][ T7176]  sock_poll+0xed/0x250
[   46.310540][ T7176]  ep_item_poll.isra.0+0x90/0x190
[   46.315553][ T7176]  ep_send_events_proc+0x113/0x5c0
[   46.320643][ T7176]  ep_scan_ready_list.constprop.0+0x189/0x500
[   46.326684][ T7176]  ep_poll+0xe3/0x900
[   46.330650][ T7176]  do_epoll_wait+0x162/0x180
[   46.335218][ T7176]  __x64_sys_epoll_pwait+0xcd/0x170
[   46.340393][ T7176]  do_syscall_64+0xcf/0x2f0
[   46.344874][ T7176]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   46.350736][ T7176] 
[   46.353036][ T7176] Reported by Kernel Concurrency Sanitizer on:
[   46.359164][ T7176] CPU: 0 PID: 7176 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   46.366254][ T7176] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   46.376559][ T7176] ==================================================================
[   46.384757][ T7176] Kernel panic - not syncing: panic_on_warn set ...
[   46.391329][ T7176] CPU: 0 PID: 7176 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   46.399140][ T7176] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   46.409188][ T7176] Call Trace:
[   46.412477][ T7176]  dump_stack+0xf5/0x159
[   46.416701][ T7176]  panic+0x209/0x639
[   46.420606][ T7176]  ? do_syscall_64+0xcf/0x2f0
[   46.425260][ T7176]  ? vprintk_func+0x8d/0x140
[   46.430006][ T7176]  kcsan_report.cold+0xc/0x1b
[   46.434663][ T7176]  __kcsan_setup_watchpoint+0x3ee/0x510
[   46.440208][ T7176]  __tsan_read4+0x2c/0x30
[   46.444513][ T7176]  tcp_poll+0x1cc/0x6b0
[   46.448733][ T7176]  ? tcp_alloc_md5sig_pool+0x320/0x320
[   46.454169][ T7176]  sock_poll+0xed/0x250
[   46.458301][ T7176]  ? sock_read_iter+0x1e0/0x1e0
[   46.463130][ T7176]  ep_item_poll.isra.0+0x90/0x190
[   46.468481][ T7176]  ep_send_events_proc+0x113/0x5c0
[   46.473591][ T7176]  ? __kcsan_setup_watchpoint+0x96/0x510
[   46.479208][ T7176]  ep_scan_ready_list.constprop.0+0x189/0x500
[   46.485252][ T7176]  ? ep_loop_check_proc+0x2f0/0x2f0
[   46.490429][ T7176]  ep_poll+0xe3/0x900
[   46.494387][ T7176]  ? __fget+0xb8/0x1d0
[   46.498435][ T7176]  ? __kcsan_setup_watchpoint+0x96/0x510
[   46.504050][ T7176]  ? __fget_light+0xaf/0x190
[   46.508626][ T7176]  do_epoll_wait+0x162/0x180
[   46.513294][ T7176]  __x64_sys_epoll_pwait+0xcd/0x170
[   46.518471][ T7176]  do_syscall_64+0xcf/0x2f0
[   46.522955][ T7176]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   46.528821][ T7176] RIP: 0033:0x45b300
[   46.532694][ T7176] 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
[   46.552274][ T7176] RSP: 002b:000000c42004f8d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000119
[   46.560847][ T7176] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000045b300
[   46.568803][ T7176] RDX: 0000000000000080 RSI: 000000c42004f918 RDI: 0000000000000004
[   46.576753][ T7176] RBP: 000000c42004ff18 R08: 0000000000000000 R09: 0000000000002022
[   46.584704][ T7176] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000042f0a0
[   46.592826][ T7176] R13: 00000000000000f1 R14: 0000000000000011 R15: 0000000000000000
[   46.602355][ T7176] Kernel Offset: disabled
[   46.606675][ T7176] Rebooting in 86400 seconds..