Warning: Permanently added '10.128.0.219' (ECDSA) to the list of known hosts.
2019/10/21 05:43:08 fuzzer started
2019/10/21 05:43:10 dialing manager at 10.128.0.105:43535
2019/10/21 05:43:10 syscalls: 2524
2019/10/21 05:43:10 code coverage: enabled
2019/10/21 05:43:10 comparison tracing: enabled
2019/10/21 05:43:10 extra coverage: extra coverage is not supported by the kernel
2019/10/21 05:43:10 setuid sandbox: enabled
2019/10/21 05:43:10 namespace sandbox: enabled
2019/10/21 05:43:10 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/21 05:43:10 fault injection: enabled
2019/10/21 05:43:10 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/21 05:43:10 net packet injection: enabled
2019/10/21 05:43:10 net device setup: enabled
2019/10/21 05:43:10 concurrency sanitizer: enabled
syzkaller login: [   46.049947][ T7282] ==================================================================
[   46.060000][ T7282] BUG: KCSAN: data-race in tcp_poll / tcp_recvmsg
[   46.068495][ T7282] 
[   46.072975][ T7282] read to 0xffff888128d76ebc of 4 bytes by task 7283 on cpu 1:
[   46.085007][ T7282]  tcp_poll+0x1cc/0x6b0
[   46.090509][ T7282]  sock_poll+0xed/0x250
[   46.095355][ T7282]  ep_item_poll.isra.0+0x90/0x190
[   46.101341][ T7282]  ep_send_events_proc+0x113/0x590
[   46.106789][ T7282]  ep_scan_ready_list.constprop.0+0x189/0x500
[   46.115439][ T7282]  ep_poll+0xe3/0x900
[   46.120860][ T7282]  do_epoll_wait+0x162/0x180
[   46.125657][ T7282]  __x64_sys_epoll_pwait+0xcd/0x180
[   46.131268][ T7282]  do_syscall_64+0xcc/0x370
[   46.136218][ T7282]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   46.142374][ T7282] 
[   46.144982][ T7282] write to 0xffff888128d76ebc of 4 bytes by task 7282 on cpu 0:
[   46.155353][ T7282]  tcp_recvmsg+0xd86/0x1a30
[   46.160250][ T7282]  inet_recvmsg+0xbb/0x250
[   46.164842][ T7282]  sock_recvmsg+0x92/0xb0
[   46.169865][ T7282]  sock_read_iter+0x15f/0x1e0
[   46.174795][ T7282]  new_sync_read+0x389/0x4f0
[   46.180135][ T7282]  __vfs_read+0xb1/0xc0
[   46.185584][ T7282]  vfs_read+0x143/0x2c0
[   46.190928][ T7282]  ksys_read+0xd5/0x1b0
[   46.195204][ T7282]  __x64_sys_read+0x4c/0x60
[   46.201039][ T7282]  do_syscall_64+0xcc/0x370
[   46.206067][ T7282]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   46.212169][ T7282] 
[   46.214529][ T7282] Reported by Kernel Concurrency Sanitizer on:
[   46.224033][ T7282] CPU: 0 PID: 7282 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   46.232004][ T7282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   46.242581][ T7282] ==================================================================
[   46.251131][ T7282] Kernel panic - not syncing: panic_on_warn set ...
[   46.260490][ T7282] CPU: 0 PID: 7282 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   46.268727][ T7282] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   46.279904][ T7282] Call Trace:
[   46.283508][ T7282]  dump_stack+0xf5/0x159
[   46.288412][ T7282]  panic+0x210/0x640
[   46.295218][ T7282]  ? __x64_sys_read+0x4c/0x60
[   46.301499][ T7282]  ? vprintk_func+0x8d/0x140
[   46.306448][ T7282]  kcsan_report.cold+0xc/0x10
[   46.311239][ T7282]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   46.317052][ T7282]  __tsan_write4+0x32/0x40
[   46.321699][ T7282]  tcp_recvmsg+0xd86/0x1a30
[   46.328546][ T7282]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   46.334407][ T7282]  inet_recvmsg+0xbb/0x250
[   46.339527][ T7282]  ? __tsan_read8+0x2c/0x30
[   46.344169][ T7282]  ? inet_sendpage+0x100/0x100
[   46.349291][ T7282]  sock_recvmsg+0x92/0xb0
[   46.353614][ T7282]  sock_read_iter+0x15f/0x1e0
[   46.358554][ T7282]  new_sync_read+0x389/0x4f0
[   46.364160][ T7282]  __vfs_read+0xb1/0xc0
[   46.368479][ T7282]  vfs_read+0x143/0x2c0
[   46.372849][ T7282]  ksys_read+0xd5/0x1b0
[   46.377374][ T7282]  __x64_sys_read+0x4c/0x60
[   46.382187][ T7282]  do_syscall_64+0xcc/0x370
[   46.387836][ T7282]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   46.394891][ T7282] RIP: 0033:0x47c530
[   46.399689][ T7282] 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
[   46.419816][ T7282] RSP: 002b:000000c42033d7d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000
[   46.429280][ T7282] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   46.437513][ T7282] RDX: 0000000000001000 RSI: 000000c42036e000 RDI: 0000000000000003
[   46.445525][ T7282] RBP: 000000c42033d830 R08: 0000000000000000 R09: 0000000000000000
[   46.454959][ T7282] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000010
[   46.463080][ T7282] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   46.473072][ T7282] Kernel Offset: disabled
[   46.478736][ T7282] Rebooting in 86400 seconds..