Warning: Permanently added '10.128.0.194' (ECDSA) to the list of known hosts.
2019/10/08 03:36:14 fuzzer started
2019/10/08 03:36:15 dialing manager at 10.128.0.105:39369
2019/10/08 03:36:15 syscalls: 2523
2019/10/08 03:36:15 code coverage: enabled
2019/10/08 03:36:15 comparison tracing: enabled
2019/10/08 03:36:15 extra coverage: extra coverage is not supported by the kernel
2019/10/08 03:36:15 setuid sandbox: enabled
2019/10/08 03:36:15 namespace sandbox: enabled
2019/10/08 03:36:15 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/08 03:36:15 fault injection: enabled
2019/10/08 03:36:15 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/08 03:36:15 net packet injection: enabled
2019/10/08 03:36:15 net device setup: enabled
2019/10/08 03:36:15 concurrency sanitizer: enabled
syzkaller login: [   58.899697][ T7228] ==================================================================
[   58.907872][ T7228] BUG: KCSAN: data-race in tcp_poll / tcp_recvmsg
[   58.914264][ T7228] 
[   58.916583][ T7228] write to 0xffff8881256e65b4 of 4 bytes by task 7232 on cpu 1:
[   58.924229][ T7228]  tcp_recvmsg+0xd86/0x1a30
[   58.928725][ T7228]  inet_recvmsg+0xbb/0x250
[   58.933128][ T7228]  sock_recvmsg+0x92/0xb0
[   58.937473][ T7228]  sock_read_iter+0x15f/0x1e0
[   58.942144][ T7228]  new_sync_read+0x389/0x4f0
[   58.946720][ T7228]  __vfs_read+0xb1/0xc0
[   58.950864][ T7228]  vfs_read+0x143/0x2c0
[   58.955028][ T7228]  ksys_read+0xd5/0x1b0
[   58.959170][ T7228]  __x64_sys_read+0x4c/0x60
[   58.963663][ T7228]  do_syscall_64+0xcf/0x2f0
[   58.968175][ T7228]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   58.974071][ T7228] 
[   58.976410][ T7228] read to 0xffff8881256e65b4 of 4 bytes by task 7228 on cpu 0:
[   58.983957][ T7228]  tcp_poll+0x1cc/0x6b0
[   58.988231][ T7228]  sock_poll+0xed/0x250
[   58.992620][ T7228]  ep_item_poll.isra.0+0x90/0x190
[   58.997670][ T7228]  ep_send_events_proc+0x113/0x5c0
[   59.002782][ T7228]  ep_scan_ready_list.constprop.0+0x189/0x500
[   59.008852][ T7228]  ep_poll+0xe3/0x900
[   59.012936][ T7228]  do_epoll_wait+0x162/0x180
[   59.017560][ T7228]  __x64_sys_epoll_pwait+0xcd/0x170
[   59.022752][ T7228]  do_syscall_64+0xcf/0x2f0
[   59.027268][ T7228]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   59.033248][ T7228] 
[   59.035583][ T7228] Reported by Kernel Concurrency Sanitizer on:
[   59.042065][ T7228] CPU: 0 PID: 7228 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   59.049362][ T7228] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   59.059779][ T7228] ==================================================================
[   59.068378][ T7228] Kernel panic - not syncing: panic_on_warn set ...
[   59.074980][ T7228] CPU: 0 PID: 7228 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   59.082095][ T7228] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   59.092182][ T7228] Call Trace:
[   59.095839][ T7228]  dump_stack+0xf5/0x159
[   59.100111][ T7228]  panic+0x209/0x639
[   59.104120][ T7228]  ? vprintk_func+0x8d/0x140
[   59.108730][ T7228]  kcsan_report.cold+0x57/0xeb
[   59.113513][ T7228]  __kcsan_setup_watchpoint+0x342/0x500
[   59.119196][ T7228]  __tsan_read4+0x2c/0x30
[   59.123526][ T7228]  tcp_poll+0x1cc/0x6b0
[   59.127678][ T7228]  ? tcp_alloc_md5sig_pool+0x320/0x320
[   59.133518][ T7228]  sock_poll+0xed/0x250
[   59.137857][ T7228]  ? sock_read_iter+0x1e0/0x1e0
[   59.142712][ T7228]  ep_item_poll.isra.0+0x90/0x190
[   59.147776][ T7228]  ep_send_events_proc+0x113/0x5c0
[   59.153286][ T7228]  ep_scan_ready_list.constprop.0+0x189/0x500
[   59.159518][ T7228]  ? ep_loop_check_proc+0x2f0/0x2f0
[   59.164718][ T7228]  ep_poll+0xe3/0x900
[   59.168693][ T7228]  ? __fget+0xb8/0x1d0
[   59.172762][ T7228]  ? __fget_light+0xaf/0x190
[   59.177349][ T7228]  do_epoll_wait+0x162/0x180
[   59.181976][ T7228]  __x64_sys_epoll_pwait+0xcd/0x170
[   59.187191][ T7228]  do_syscall_64+0xcf/0x2f0
[   59.191862][ T7228]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   59.197772][ T7228] RIP: 0033:0x45b300
[   59.201669][ T7228] 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
[   59.222158][ T7228] RSP: 002b:000000c42004f8d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000119
[   59.230791][ T7228] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000045b300
[   59.238779][ T7228] RDX: 0000000000000080 RSI: 000000c42004f918 RDI: 0000000000000004
[   59.246748][ T7228] RBP: 000000c42004ff18 R08: 0000000000000000 R09: 00000000000029b0
[   59.255801][ T7228] R10: 0000000000000000 R11: 0000000000000246 R12: 000000000042f0a0
[   59.263788][ T7228] R13: 00000000000000f1 R14: 0000000000000011 R15: 0000000000000000
[   59.273107][ T7228] Kernel Offset: disabled
[   59.277441][ T7228] Rebooting in 86400 seconds..