Warning: Permanently added '10.128.10.51' (ECDSA) to the list of known hosts.
2019/10/16 19:32:41 fuzzer started
2019/10/16 19:32:43 dialing manager at 10.128.0.105:33899
2019/10/16 19:32:43 syscalls: 2524
2019/10/16 19:32:43 code coverage: enabled
2019/10/16 19:32:43 comparison tracing: enabled
2019/10/16 19:32:43 extra coverage: extra coverage is not supported by the kernel
2019/10/16 19:32:43 setuid sandbox: enabled
2019/10/16 19:32:43 namespace sandbox: enabled
2019/10/16 19:32:43 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/16 19:32:43 fault injection: enabled
2019/10/16 19:32:43 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/16 19:32:43 net packet injection: enabled
2019/10/16 19:32:43 net device setup: enabled
2019/10/16 19:32:43 concurrency sanitizer: enabled
syzkaller login: [   53.635145][ T7274] ==================================================================
[   53.643291][ T7274] BUG: KCSAN: data-race in enqueue_timer / mod_timer
[   53.649962][ T7274] 
[   53.652331][ T7274] write to 0xffff8881264aa470 of 8 bytes by task 7291 on cpu 0:
[   53.659958][ T7274]  enqueue_timer+0x6c/0x240
[   53.664470][ T7274]  mod_timer+0x4b3/0x7a0
[   53.668713][ T7274]  sk_reset_timer+0x2d/0x70
[   53.673211][ T7274]  tcp_rearm_rto.part.0+0x190/0x240
[   53.678407][ T7274]  tcp_rearm_rto+0x4f/0x60
[   53.682819][ T7274]  tcp_event_new_data_sent+0x1bb/0x1c0
[   53.688289][ T7274]  tcp_write_xmit+0xa16/0x3080
[   53.693053][ T7274]  __tcp_push_pending_frames+0x7b/0x1d0
[   53.698597][ T7274]  tcp_push+0x1e9/0x3d0
[   53.702749][ T7274]  tcp_sendmsg_locked+0x1d1e/0x1f30
[   53.707947][ T7274]  tcp_sendmsg+0x39/0x60
[   53.712184][ T7274]  inet_sendmsg+0x6d/0x90
[   53.716511][ T7274]  sock_sendmsg+0x9f/0xc0
[   53.720834][ T7274]  sock_write_iter+0x16b/0x210
[   53.725585][ T7274] 
[   53.727910][ T7274] read to 0xffff8881264aa470 of 8 bytes by task 7274 on cpu 1:
[   53.735454][ T7274]  mod_timer+0x59/0x7a0
[   53.739605][ T7274]  sk_reset_timer+0x2d/0x70
[   53.744102][ T7274]  tcp_rearm_rto.part.0+0x190/0x240
[   53.749293][ T7274]  tcp_rearm_rto+0x4f/0x60
[   53.753703][ T7274]  tcp_event_new_data_sent+0x1bb/0x1c0
[   53.759156][ T7274]  tcp_write_xmit+0xa16/0x3080
[   53.763921][ T7274]  __tcp_push_pending_frames+0x7b/0x1d0
[   53.769468][ T7274]  tcp_push+0x1e9/0x3d0
[   53.773621][ T7274]  tcp_sendmsg_locked+0x1d1e/0x1f30
[   53.778814][ T7274]  tcp_sendmsg+0x39/0x60
[   53.783052][ T7274]  inet_sendmsg+0x6d/0x90
[   53.787379][ T7274]  sock_sendmsg+0x9f/0xc0
[   53.791720][ T7274]  sock_write_iter+0x16b/0x210
[   53.796474][ T7274] 
[   53.798794][ T7274] Reported by Kernel Concurrency Sanitizer on:
[   53.804943][ T7274] CPU: 1 PID: 7274 Comm: sshd Not tainted 5.4.0-rc3+ #0
[   53.811869][ T7274] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   53.821935][ T7274] ==================================================================
[   53.830428][ T7274] Kernel panic - not syncing: panic_on_warn set ...
[   53.836999][ T7274] CPU: 1 PID: 7274 Comm: sshd Not tainted 5.4.0-rc3+ #0
[   53.843913][ T7274] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   53.853962][ T7274] Call Trace:
[   53.857267][ T7274]  dump_stack+0xf5/0x159
[   53.861512][ T7274]  panic+0x210/0x640
[   53.865415][ T7274]  ? tcp_sendmsg_locked+0x1d1e/0x1f30
[   53.870783][ T7274]  ? vprintk_func+0x8d/0x140
[   53.875377][ T7274]  kcsan_report.cold+0xc/0x1b
[   53.880055][ T7274]  __kcsan_setup_watchpoint+0x3ee/0x510
[   53.886124][ T7274]  __tsan_read8+0x2c/0x30
[   53.890456][ T7274]  mod_timer+0x59/0x7a0
[   53.894611][ T7274]  ? __kcsan_setup_watchpoint+0x96/0x510
[   53.900267][ T7274]  ? __kcsan_setup_watchpoint+0x96/0x510
[   53.905911][ T7274]  sk_reset_timer+0x2d/0x70
[   53.910423][ T7274]  tcp_rearm_rto.part.0+0x190/0x240
[   53.915629][ T7274]  tcp_rearm_rto+0x4f/0x60
[   53.920049][ T7274]  tcp_event_new_data_sent+0x1bb/0x1c0
[   53.925540][ T7274]  tcp_write_xmit+0xa16/0x3080
[   53.930312][ T7274]  ? kmem_cache_alloc_node_trace+0x273/0x670
[   53.936315][ T7274]  __tcp_push_pending_frames+0x7b/0x1d0
[   53.941868][ T7274]  tcp_push+0x1e9/0x3d0
[   53.946043][ T7274]  tcp_sendmsg_locked+0x1d1e/0x1f30
[   53.951274][ T7274]  tcp_sendmsg+0x39/0x60
[   53.955526][ T7274]  inet_sendmsg+0x6d/0x90
[   53.959870][ T7274]  ? inet_send_prepare+0x200/0x200
[   53.964983][ T7274]  sock_sendmsg+0x9f/0xc0
[   53.969313][ T7274]  sock_write_iter+0x16b/0x210
[   53.974080][ T7274]  new_sync_write+0x388/0x4a0
[   53.978760][ T7274]  __vfs_write+0xb1/0xc0
[   53.983007][ T7274]  vfs_write+0x18a/0x390
[   53.987258][ T7274]  ksys_write+0xd5/0x1b0
[   53.991502][ T7274]  __x64_sys_write+0x4c/0x60
[   53.996880][ T7274]  do_syscall_64+0xcc/0x370
[   54.001394][ T7274]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   54.007277][ T7274] RIP: 0033:0x7fea1b64b370
[   54.011704][ T7274] Code: 73 01 c3 48 8b 0d c8 4a 2b 00 31 d2 48 29 c2 64 89 11 48 83 c8 ff eb ea 90 90 83 3d 85 a2 2b 00 00 75 10 b8 01 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 0e 8a 01 00 48 89 04 24
[   54.031311][ T7274] RSP: 002b:00007ffe8e81d058 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[   54.039720][ T7274] RAX: ffffffffffffffda RBX: 0000000000000058 RCX: 00007fea1b64b370
[   54.047688][ T7274] RDX: 0000000000000058 RSI: 0000561af57ac460 RDI: 0000000000000003
[   54.055660][ T7274] RBP: 0000561af57ac460 R08: 0000000000000001 R09: 0101010101010101
[   54.063638][ T7274] R10: 0000000000000008 R11: 0000000000000246 R12: 00007ffe8e81d0bc
[   54.071605][ T7274] R13: 0000561af555cfb4 R14: 0000000000000028 R15: 0000561af555eca0
[   54.080271][ T7274] Kernel Offset: disabled
[   54.084597][ T7274] Rebooting in 86400 seconds..