Warning: Permanently added '10.128.0.46' (ECDSA) to the list of known hosts.
2019/10/31 09:05:14 fuzzer started
2019/10/31 09:05:16 dialing manager at 10.128.0.105:37477
2019/10/31 09:05:16 syscalls: 2540
syzkaller login: [   49.215619][ T7301] ==================================================================
[   49.223876][ T7301] BUG: KCSAN: data-race in pipe_poll / pipe_write
[   49.230371][ T7301] 
[   49.234577][ T7301] write to 0xffff88812133f878 of 4 bytes by task 7306 on cpu 1:
[   49.243101][ T7301]  pipe_write+0x268/0x970
[   49.247430][ T7301]  new_sync_write+0x388/0x4a0
[   49.252195][ T7301]  __vfs_write+0xb1/0xc0
[   49.256426][ T7301]  vfs_write+0x18a/0x390
[   49.260834][ T7301]  ksys_write+0xd5/0x1b0
[   49.265115][ T7301]  __x64_sys_write+0x4c/0x60
[   49.269871][ T7301]  do_syscall_64+0xcc/0x370
[   49.274636][ T7301]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   49.281310][ T7301] 
[   49.283635][ T7301] read to 0xffff88812133f878 of 4 bytes by task 7301 on cpu 0:
[   49.291354][ T7301]  pipe_poll+0x84/0x1d0
[   49.295595][ T7301]  do_select+0x7d0/0x1020
[   49.299922][ T7301]  core_sys_select+0x381/0x550
[   49.304774][ T7301]  kern_select+0x106/0x170
[   49.309367][ T7301]  __x64_sys_select+0x70/0x90
[   49.314154][ T7301]  do_syscall_64+0xcc/0x370
[   49.318650][ T7301]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   49.324802][ T7301] 
[   49.327203][ T7301] Reported by Kernel Concurrency Sanitizer on:
[   49.333692][ T7301] CPU: 0 PID: 7301 Comm: sshd Not tainted 5.4.0-rc3+ #0
[   49.340695][ T7301] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   49.350911][ T7301] ==================================================================
[   49.359243][ T7301] Kernel panic - not syncing: panic_on_warn set ...
[   49.365904][ T7301] CPU: 0 PID: 7301 Comm: sshd Not tainted 5.4.0-rc3+ #0
[   49.372907][ T7301] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   49.383812][ T7301] Call Trace:
[   49.387200][ T7301]  dump_stack+0xf5/0x159
[   49.391621][ T7301]  panic+0x210/0x640
[   49.395507][ T7301]  ? vprintk_func+0x8d/0x140
[   49.400190][ T7301]  kcsan_report.cold+0xc/0x10
[   49.404948][ T7301]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   49.410534][ T7301]  ? generic_pipe_buf_confirm+0x20/0x20
[   49.416246][ T7301]  __tsan_read4+0x2c/0x30
[   49.420604][ T7301]  pipe_poll+0x84/0x1d0
[   49.424947][ T7301]  ? generic_pipe_buf_confirm+0x20/0x20
[   49.430482][ T7301]  do_select+0x7d0/0x1020
[   49.434943][ T7301]  ? poll_select_finish+0x440/0x440
[   49.440224][ T7301]  ? poll_select_finish+0x440/0x440
[   49.445427][ T7301]  ? poll_select_finish+0x440/0x440
[   49.450620][ T7301]  ? poll_select_finish+0x440/0x440
[   49.455989][ T7301]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   49.461717][ T7301]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   49.467340][ T7301]  ? __sanitizer_cov_trace_switch+0x49/0x80
[   49.473332][ T7301]  ? __tsan_read8+0x2c/0x30
[   49.477840][ T7301]  ? __sanitizer_cov_trace_const_cmp4+0x16/0x20
[   49.484121][ T7301]  ? timestamp_truncate+0x11b/0x160
[   49.489489][ T7301]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   49.495371][ T7301]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   49.500993][ T7301]  ? __tsan_read8+0x2c/0x30
[   49.505482][ T7301]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   49.511105][ T7301]  ? check_stack_object+0xda/0x110
[   49.516214][ T7301]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   49.521943][ T7301]  ? __tsan_read8+0x2c/0x30
[   49.526440][ T7301]  ? __sanitizer_cov_trace_const_cmp8+0x18/0x20
[   49.532670][ T7301]  core_sys_select+0x381/0x550
[   49.537441][ T7301]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   49.543231][ T7301]  ? __tsan_read8+0x2c/0x30
[   49.547810][ T7301]  ? __sanitizer_cov_trace_switch+0x49/0x80
[   49.553711][ T7301]  ? __tsan_write8+0x32/0x40
[   49.558291][ T7301]  ? ktime_get_ts64+0x286/0x2c0
[   49.563173][ T7301]  ? __sanitizer_cov_trace_cmp8+0x18/0x20
[   49.568895][ T7301]  ? timespec64_add_safe+0xae/0xd0
[   49.573996][ T7301]  kern_select+0x106/0x170
[   49.578416][ T7301]  __x64_sys_select+0x70/0x90
[   49.583180][ T7301]  do_syscall_64+0xcc/0x370
[   49.587676][ T7301]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   49.593598][ T7301] RIP: 0033:0x7f51f3c3add3
[   49.598648][ T7301] Code: 48 29 c2 64 89 11 48 83 c8 ff eb ea 90 90 90 90 90 90 90 90 90 90 90 83 3d 25 48 2b 00 00 75 13 49 89 ca b8 17 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 34 c3 48 83 ec 08 e8 ab 2f 01 00 48 89 04 24
[   49.618239][ T7301] RSP: 002b:00007ffdd675d938 EFLAGS: 00000246 ORIG_RAX: 0000000000000017
[   49.626636][ T7301] RAX: ffffffffffffffda RBX: 00007ffdd675d9c0 RCX: 00007f51f3c3add3
[   49.634682][ T7301] RDX: 0000561b6529cb20 RSI: 0000561b6529cb40 RDI: 000000000000000c
[   49.643007][ T7301] RBP: 0000561b642038dc R08: 00007ffdd675d960 R09: 0101010101010101
[   49.650972][ T7301] R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffdd675d9c8
[   49.659023][ T7301] R13: 0000000000000000 R14: 00007ffdd675d9b8 R15: 00007ffdd675d9bc
[   49.668462][ T7301] Kernel Offset: disabled
[   49.673026][ T7301] Rebooting in 86400 seconds..