Warning: Permanently added '10.128.0.136' (ECDSA) to the list of known hosts.
2019/10/10 11:24:12 fuzzer started
2019/10/10 11:24:14 dialing manager at 10.128.0.105:34287
2019/10/10 11:24:14 syscalls: 2523
2019/10/10 11:24:14 code coverage: enabled
2019/10/10 11:24:14 comparison tracing: enabled
2019/10/10 11:24:14 extra coverage: extra coverage is not supported by the kernel
2019/10/10 11:24:14 setuid sandbox: enabled
2019/10/10 11:24:14 namespace sandbox: enabled
2019/10/10 11:24:14 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/10 11:24:14 fault injection: enabled
2019/10/10 11:24:14 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/10 11:24:14 net packet injection: enabled
2019/10/10 11:24:14 net device setup: enabled
2019/10/10 11:24:14 concurrency sanitizer: enabled
syzkaller login: [   49.044795][ T7222] ==================================================================
[   49.052923][ T7222] BUG: KCSAN: data-race in tcp_poll / tcp_recvmsg
[   49.059310][ T7222] 
[   49.061617][ T7222] read to 0xffff8881232ab774 of 4 bytes by task 7218 on cpu 1:
[   49.069139][ T7222]  tcp_poll+0x1cc/0x6b0
[   49.073270][ T7222]  sock_poll+0xed/0x250
[   49.077406][ T7222]  ep_item_poll.isra.0+0x90/0x190
[   49.082416][ T7222]  ep_send_events_proc+0x113/0x5c0
[   49.087506][ T7222]  ep_scan_ready_list.constprop.0+0x189/0x500
[   49.093547][ T7222]  ep_poll+0xe3/0x900
[   49.097508][ T7222]  do_epoll_wait+0x162/0x180
[   49.102075][ T7222]  __x64_sys_epoll_pwait+0xcd/0x170
[   49.107281][ T7222]  do_syscall_64+0xcf/0x2f0
[   49.111765][ T7222]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   49.117625][ T7222] 
[   49.119939][ T7222] write to 0xffff8881232ab774 of 4 bytes by task 7222 on cpu 0:
[   49.127544][ T7222]  tcp_recvmsg+0xd86/0x1a30
[   49.132024][ T7222]  inet_recvmsg+0xbb/0x250
[   49.136415][ T7222]  sock_recvmsg+0x92/0xb0
[   49.140719][ T7222]  sock_read_iter+0x15f/0x1e0
[   49.145414][ T7222]  new_sync_read+0x389/0x4f0
[   49.149979][ T7222]  __vfs_read+0xb1/0xc0
[   49.154109][ T7222]  vfs_read+0x143/0x2c0
[   49.158240][ T7222]  ksys_read+0xd5/0x1b0
[   49.162400][ T7222]  __x64_sys_read+0x4c/0x60
[   49.166882][ T7222]  do_syscall_64+0xcf/0x2f0
[   49.171380][ T7222]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   49.177240][ T7222] 
[   49.179542][ T7222] Reported by Kernel Concurrency Sanitizer on:
[   49.185670][ T7222] CPU: 0 PID: 7222 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   49.192750][ T7222] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   49.202781][ T7222] ==================================================================
[   49.210816][ T7222] Kernel panic - not syncing: panic_on_warn set ...
[   49.217397][ T7222] CPU: 0 PID: 7222 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   49.224495][ T7222] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   49.234535][ T7222] Call Trace:
[   49.237806][ T7222]  dump_stack+0xf5/0x159
[   49.242028][ T7222]  panic+0x209/0x639
[   49.245903][ T7222]  ? __x64_sys_read+0x4c/0x60
[   49.250555][ T7222]  ? vprintk_func+0x8d/0x140
[   49.255135][ T7222]  kcsan_report.cold+0xc/0x1b
[   49.259793][ T7222]  __kcsan_setup_watchpoint+0x3ee/0x510
[   49.265316][ T7222]  __tsan_write4+0x32/0x40
[   49.269712][ T7222]  tcp_recvmsg+0xd86/0x1a30
[   49.274196][ T7222]  ? __kcsan_setup_watchpoint+0x96/0x510
[   49.279809][ T7222]  inet_recvmsg+0xbb/0x250
[   49.284205][ T7222]  ? __tsan_read8+0x2c/0x30
[   49.288699][ T7222]  ? inet_sendpage+0x100/0x100
[   49.293451][ T7222]  sock_recvmsg+0x92/0xb0
[   49.297759][ T7222]  sock_read_iter+0x15f/0x1e0
[   49.302419][ T7222]  new_sync_read+0x389/0x4f0
[   49.306991][ T7222]  __vfs_read+0xb1/0xc0
[   49.311126][ T7222]  vfs_read+0x143/0x2c0
[   49.315275][ T7222]  ksys_read+0xd5/0x1b0
[   49.319409][ T7222]  __x64_sys_read+0x4c/0x60
[   49.323895][ T7222]  do_syscall_64+0xcf/0x2f0
[   49.328393][ T7222]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   49.334272][ T7222] RIP: 0033:0x47c530
[   49.338158][ T7222] Code: 8b 7c 24 10 48 8b 74 24 18 48 8b 54 24 20 49 c7 c2 00 00 00 00 49 c7 c0 00 00 00 00 49 c7 c1 00 00 00 00 48 8b 44 24 08 0f 05 <48> 3d 01 f0 ff ff 76 20 48 c7 44 24 28 ff ff ff ff 48 c7 44 24 30
[   49.357751][ T7222] RSP: 002b:000000c4204ed810 EFLAGS: 00000202 ORIG_RAX: 0000000000000000
[   49.366137][ T7222] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   49.374085][ T7222] RDX: 0000000000001000 RSI: 000000c4200aa000 RDI: 0000000000000003
[   49.382056][ T7222] RBP: 000000c4204ed868 R08: 0000000000000000 R09: 0000000000000000
[   49.390006][ T7222] R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008
[   49.397953][ T7222] R13: ffffffffffffffff R14: 0000000000000004 R15: ffffffffffffffff
[   49.407350][ T7222] Kernel Offset: disabled
[   49.411689][ T7222] Rebooting in 86400 seconds..