Warning: Permanently added '10.128.10.25' (ECDSA) to the list of known hosts.
2019/10/16 18:16:15 fuzzer started
2019/10/16 18:16:15 dialing manager at 10.128.0.105:33899
2019/10/16 18:16:15 syscalls: 2524
2019/10/16 18:16:15 code coverage: enabled
2019/10/16 18:16:15 comparison tracing: enabled
2019/10/16 18:16:15 extra coverage: extra coverage is not supported by the kernel
2019/10/16 18:16:15 setuid sandbox: enabled
2019/10/16 18:16:15 namespace sandbox: enabled
2019/10/16 18:16:15 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/16 18:16:15 fault injection: enabled
2019/10/16 18:16:15 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/16 18:16:15 net packet injection: enabled
2019/10/16 18:16:15 net device setup: enabled
2019/10/16 18:16:15 concurrency sanitizer: enabled
syzkaller login: [   49.482607][ T7207] ==================================================================
[   49.490776][ T7207] BUG: KCSAN: data-race in tcp_poll / tcp_recvmsg
[   49.497184][ T7207] 
[   49.499521][ T7207] write to 0xffff8881292d2ebc of 4 bytes by task 7216 on cpu 1:
[   49.507154][ T7207]  tcp_recvmsg+0xd86/0x1a30
[   49.511679][ T7207]  inet_recvmsg+0xbb/0x250
[   49.516082][ T7207]  sock_recvmsg+0x92/0xb0
[   49.520398][ T7207]  sock_read_iter+0x15f/0x1e0
[   49.525059][ T7207]  new_sync_read+0x389/0x4f0
[   49.529658][ T7207]  __vfs_read+0xb1/0xc0
[   49.533797][ T7207]  vfs_read+0x143/0x2c0
[   49.537936][ T7207]  ksys_read+0xd5/0x1b0
[   49.542074][ T7207]  __x64_sys_read+0x4c/0x60
[   49.546566][ T7207]  do_syscall_64+0xcc/0x370
[   49.551054][ T7207]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   49.556921][ T7207] 
[   49.559240][ T7207] read to 0xffff8881292d2ebc of 4 bytes by task 7207 on cpu 0:
[   49.566771][ T7207]  tcp_poll+0x1cc/0x6b0
[   49.570919][ T7207]  sock_poll+0xed/0x250
[   49.575062][ T7207]  ep_item_poll.isra.0+0x90/0x190
[   49.580067][ T7207]  ep_send_events_proc+0x113/0x590
[   49.585175][ T7207]  ep_scan_ready_list.constprop.0+0x189/0x500
[   49.591243][ T7207]  ep_poll+0xe3/0x900
[   49.595225][ T7207]  do_epoll_wait+0x162/0x180
[   49.599800][ T7207]  __x64_sys_epoll_pwait+0xcd/0x180
[   49.604981][ T7207]  do_syscall_64+0xcc/0x370
[   49.609469][ T7207]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   49.615334][ T7207] 
[   49.617650][ T7207] Reported by Kernel Concurrency Sanitizer on:
[   49.623790][ T7207] CPU: 0 PID: 7207 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   49.631484][ T7207] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   49.641519][ T7207] ==================================================================
[   49.649558][ T7207] Kernel panic - not syncing: panic_on_warn set ...
[   49.656131][ T7207] CPU: 0 PID: 7207 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   49.663563][ T7207] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   49.673597][ T7207] Call Trace:
[   49.676875][ T7207]  dump_stack+0xf5/0x159
[   49.681114][ T7207]  panic+0x210/0x640
[   49.685001][ T7207]  ? do_syscall_64+0xcc/0x370
[   49.689666][ T7207]  ? vprintk_func+0x8d/0x140
[   49.694245][ T7207]  kcsan_report.cold+0xc/0x1b
[   49.698910][ T7207]  __kcsan_setup_watchpoint+0x3ee/0x510
[   49.704526][ T7207]  __tsan_read4+0x2c/0x30
[   49.708845][ T7207]  tcp_poll+0x1cc/0x6b0
[   49.712988][ T7207]  ? tcp_alloc_md5sig_pool+0x320/0x320
[   49.718435][ T7207]  sock_poll+0xed/0x250
[   49.722579][ T7207]  ? sock_read_iter+0x1e0/0x1e0
[   49.727426][ T7207]  ep_item_poll.isra.0+0x90/0x190
[   49.732451][ T7207]  ep_send_events_proc+0x113/0x590
[   49.737557][ T7207]  ? __schedule+0x319/0x640
[   49.742048][ T7207]  ? __kcsan_setup_watchpoint+0x96/0x510
[   49.747675][ T7207]  ep_scan_ready_list.constprop.0+0x189/0x500
[   49.753728][ T7207]  ? ep_loop_check_proc+0x2f0/0x2f0
[   49.758915][ T7207]  ep_poll+0xe3/0x900
[   49.762887][ T7207]  ? wake_up_q+0x70/0x70
[   49.767119][ T7207]  do_epoll_wait+0x162/0x180
[   49.771698][ T7207]  __x64_sys_epoll_pwait+0xcd/0x180
[   49.776885][ T7207]  do_syscall_64+0xcc/0x370
[   49.781384][ T7207]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   49.787257][ T7207] RIP: 0033:0x45b300
[   49.791142][ T7207] 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
[   49.810843][ T7207] RSP: 002b:000000c420143860 EFLAGS: 00000246 ORIG_RAX: 0000000000000119
[   49.819257][ T7207] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 000000000045b300
[   49.827215][ T7207] RDX: 0000000000000080 RSI: 000000c4201438a0 RDI: 0000000000000004
[   49.835169][ T7207] RBP: 000000c420143ea0 R08: 0000000000000000 R09: 000000c420001800
[   49.843128][ T7207] R10: 00000000ffffffff R11: 0000000000000246 R12: 000000c420348800
[   49.851085][ T7207] R13: 0000000000000051 R14: 0000000000000000 R15: 0000000000000000
[   49.860512][ T7207] Kernel Offset: disabled
[   49.864858][ T7207] Rebooting in 86400 seconds..