Warning: Permanently added '10.128.0.223' (ECDSA) to the list of known hosts.
2019/10/21 11:40:34 fuzzer started
2019/10/21 11:40:35 dialing manager at 10.128.0.105:43535
2019/10/21 11:40:35 syscalls: 2524
2019/10/21 11:40:35 code coverage: enabled
2019/10/21 11:40:35 comparison tracing: enabled
2019/10/21 11:40:35 extra coverage: extra coverage is not supported by the kernel
2019/10/21 11:40:35 setuid sandbox: enabled
2019/10/21 11:40:35 namespace sandbox: enabled
2019/10/21 11:40:35 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/21 11:40:35 fault injection: enabled
2019/10/21 11:40:35 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/21 11:40:35 net packet injection: enabled
2019/10/21 11:40:35 net device setup: enabled
2019/10/21 11:40:35 concurrency sanitizer: enabled
syzkaller login: [   45.156101][ T7219] ==================================================================
[   45.164223][ T7219] BUG: KCSAN: data-race in tcp_poll / tcp_recvmsg
[   45.170638][ T7219] 
[   45.172971][ T7219] write to 0xffff8881293705bc of 4 bytes by task 7234 on cpu 1:
[   45.180687][ T7219]  tcp_recvmsg+0xd86/0x1a30
[   45.185181][ T7219]  inet_recvmsg+0xbb/0x250
[   45.189591][ T7219]  sock_recvmsg+0x92/0xb0
[   45.193897][ T7219]  sock_read_iter+0x15f/0x1e0
[   45.198565][ T7219]  new_sync_read+0x389/0x4f0
[   45.203147][ T7219]  __vfs_read+0xb1/0xc0
[   45.207279][ T7219]  vfs_read+0x143/0x2c0
[   45.211426][ T7219]  ksys_read+0xd5/0x1b0
[   45.215557][ T7219]  __x64_sys_read+0x4c/0x60
[   45.220054][ T7219]  do_syscall_64+0xcc/0x370
[   45.224549][ T7219]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   45.230409][ T7219] 
[   45.232718][ T7219] read to 0xffff8881293705bc of 4 bytes by task 7219 on cpu 0:
[   45.240250][ T7219]  tcp_poll+0x1cc/0x6b0
[   45.244383][ T7219]  sock_poll+0xed/0x250
[   45.248520][ T7219]  ep_item_poll.isra.0+0x90/0x190
[   45.253526][ T7219]  ep_send_events_proc+0x113/0x590
[   45.258707][ T7219]  ep_scan_ready_list.constprop.0+0x189/0x500
[   45.264851][ T7219]  ep_poll+0xe3/0x900
[   45.268833][ T7219]  do_epoll_wait+0x162/0x180
[   45.273419][ T7219]  __x64_sys_epoll_pwait+0xcd/0x180
[   45.278618][ T7219]  do_syscall_64+0xcc/0x370
[   45.283101][ T7219]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   45.288965][ T7219] 
[   45.291268][ T7219] Reported by Kernel Concurrency Sanitizer on:
[   45.297396][ T7219] CPU: 0 PID: 7219 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   45.304839][ T7219] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   45.315140][ T7219] ==================================================================
[   45.323189][ T7219] Kernel panic - not syncing: panic_on_warn set ...
[   45.329758][ T7219] CPU: 0 PID: 7219 Comm: syz-fuzzer Not tainted 5.4.0-rc3+ #0
[   45.337185][ T7219] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   45.347219][ T7219] Call Trace:
[   45.350496][ T7219]  dump_stack+0xf5/0x159
[   45.354733][ T7219]  panic+0x210/0x640
[   45.358611][ T7219]  ? do_syscall_64+0xcc/0x370
[   45.363266][ T7219]  ? vprintk_func+0x8d/0x140
[   45.367850][ T7219]  kcsan_report.cold+0xc/0x10
[   45.372507][ T7219]  __kcsan_setup_watchpoint+0x32e/0x4a0
[   45.378032][ T7219]  __tsan_read4+0x2c/0x30
[   45.382447][ T7219]  tcp_poll+0x1cc/0x6b0
[   45.386672][ T7219]  ? tcp_alloc_md5sig_pool+0x320/0x320
[   45.392111][ T7219]  sock_poll+0xed/0x250
[   45.396246][ T7219]  ? sock_read_iter+0x1e0/0x1e0
[   45.401075][ T7219]  ep_item_poll.isra.0+0x90/0x190
[   45.406078][ T7219]  ep_send_events_proc+0x113/0x590
[   45.411166][ T7219]  ? __schedule+0x319/0x640
[   45.415647][ T7219]  ? __kcsan_setup_watchpoint+0x6b/0x4a0
[   45.421324][ T7219]  ep_scan_ready_list.constprop.0+0x189/0x500
[   45.427465][ T7219]  ? ep_loop_check_proc+0x2f0/0x2f0
[   45.432682][ T7219]  ep_poll+0xe3/0x900
[   45.436652][ T7219]  ? wake_up_q+0x70/0x70
[   45.440904][ T7219]  do_epoll_wait+0x162/0x180
[   45.445475][ T7219]  __x64_sys_epoll_pwait+0xcd/0x180
[   45.450670][ T7219]  do_syscall_64+0xcc/0x370
[   45.455167][ T7219]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   45.461034][ T7219] RIP: 0033:0x45b300
[   45.464912][ T7219] 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
[   45.484508][ T7219] RSP: 002b:000000c42004b860 EFLAGS: 00000246 ORIG_RAX: 0000000000000119
[   45.492896][ T7219] RAX: ffffffffffffffda RBX: 00000000ffffffff RCX: 000000000045b300
[   45.500846][ T7219] RDX: 0000000000000080 RSI: 000000c42004b8a0 RDI: 0000000000000004
[   45.508794][ T7219] RBP: 000000c42004bea0 R08: 0000000000000000 R09: 000000c420000900
[   45.516757][ T7219] R10: 00000000ffffffff R11: 0000000000000246 R12: 000000000042f0a0
[   45.525233][ T7219] R13: 00000000000000f1 R14: 0000000000000011 R15: 0000000000000000
[   45.534628][ T7219] Kernel Offset: disabled
[   45.538947][ T7219] Rebooting in 86400 seconds..