Warning: Permanently added '10.128.15.212' (ECDSA) to the list of known hosts.
2019/10/05 08:23:00 fuzzer started
2019/10/05 08:23:01 dialing manager at 10.128.0.105:35709
2019/10/05 08:23:01 syscalls: 2523
2019/10/05 08:23:01 code coverage: enabled
2019/10/05 08:23:01 comparison tracing: enabled
2019/10/05 08:23:01 extra coverage: extra coverage is not supported by the kernel
2019/10/05 08:23:01 setuid sandbox: enabled
2019/10/05 08:23:01 namespace sandbox: enabled
2019/10/05 08:23:01 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/05 08:23:01 fault injection: enabled
2019/10/05 08:23:01 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/05 08:23:01 net packet injection: enabled
2019/10/05 08:23:01 net device setup: enabled
2019/10/05 08:23:01 concurrency sanitizer: enabled
syzkaller login: [   53.691078][ T7193] ==================================================================
[   53.699283][ T7193] BUG: KCSAN: data-race in tcp_poll / tcp_recvmsg
[   53.705719][ T7193] 
[   53.708033][ T7193] read to 0xffff8881268505f4 of 4 bytes by task 7189 on cpu 0:
[   53.715559][ T7193]  tcp_poll+0x1cc/0x6b0
[   53.719694][ T7193]  sock_poll+0xed/0x250
[   53.723833][ T7193]  ep_item_poll.isra.0+0x90/0x190
[   53.728834][ T7193]  ep_send_events_proc+0x113/0x5c0
[   53.733922][ T7193]  ep_scan_ready_list.constprop.0+0x189/0x500
[   53.739965][ T7193]  ep_poll+0xe3/0x900
[   53.743930][ T7193]  do_epoll_wait+0x162/0x180
[   53.748495][ T7193]  __x64_sys_epoll_pwait+0xcd/0x170
[   53.753666][ T7193]  do_syscall_64+0xcf/0x2f0
[   53.758151][ T7193]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   53.764014][ T7193] 
[   53.766323][ T7193] write to 0xffff8881268505f4 of 4 bytes by task 7193 on cpu 1:
[   53.773923][ T7193]  tcp_recvmsg+0xd86/0x1a30
[   53.778404][ T7193]  inet_recvmsg+0xbb/0x250
[   53.782796][ T7193]  sock_recvmsg+0x92/0xb0
[   53.787098][ T7193]  sock_read_iter+0x15f/0x1e0
[   53.791751][ T7193]  new_sync_read+0x389/0x4f0
[   53.796326][ T7193]  __vfs_read+0xb1/0xc0
[   53.800471][ T7193]  vfs_read+0x143/0x2c0
[   53.804604][ T7193]  ksys_read+0xd5/0x1b0
[   53.808732][ T7193]  __x64_sys_read+0x4c/0x60
[   53.813226][ T7193]  do_syscall_64+0xcf/0x2f0
[   53.817708][ T7193]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   53.823568][ T7193] 
[   53.825883][ T7193] Reported by Kernel Concurrency Sanitizer on:
[   53.832014][ T7193] CPU: 1 PID: 7193 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   53.839093][ T7193] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   53.849133][ T7193] ==================================================================
[   53.857165][ T7193] Kernel panic - not syncing: panic_on_warn set ...
[   53.863739][ T7193] CPU: 1 PID: 7193 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   53.870818][ T7193] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   53.880847][ T7193] Call Trace:
[   53.884117][ T7193]  dump_stack+0xf5/0x159
[   53.888337][ T7193]  panic+0x209/0x639
[   53.892221][ T7193]  ? vprintk_func+0x8d/0x140
[   53.896803][ T7193]  kcsan_report.cold+0x57/0xeb
[   53.901547][ T7193]  __kcsan_setup_watchpoint+0x342/0x500
[   53.907072][ T7193]  __tsan_write4+0x32/0x40
[   53.911465][ T7193]  tcp_recvmsg+0xd86/0x1a30
[   53.915954][ T7193]  inet_recvmsg+0xbb/0x250
[   53.920358][ T7193]  ? __tsan_read8+0x2c/0x30
[   53.924853][ T7193]  ? inet_sendpage+0x100/0x100
[   53.929598][ T7193]  sock_recvmsg+0x92/0xb0
[   53.933916][ T7193]  sock_read_iter+0x15f/0x1e0
[   53.938575][ T7193]  new_sync_read+0x389/0x4f0
[   53.943154][ T7193]  __vfs_read+0xb1/0xc0
[   53.947287][ T7193]  vfs_read+0x143/0x2c0
[   53.951423][ T7193]  ksys_read+0xd5/0x1b0
[   53.955558][ T7193]  __x64_sys_read+0x4c/0x60
[   53.960042][ T7193]  do_syscall_64+0xcf/0x2f0
[   53.964528][ T7193]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   53.970408][ T7193] RIP: 0033:0x47c530
[   53.974296][ T7193] 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
[   53.993874][ T7193] RSP: 002b:000000c4204f37d8 EFLAGS: 00000212 ORIG_RAX: 0000000000000000
[   54.002262][ T7193] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   54.010222][ T7193] RDX: 0000000000001000 RSI: 000000c42017e000 RDI: 0000000000000003
[   54.018169][ T7193] RBP: 000000c4204f3830 R08: 0000000000000000 R09: 0000000000000000
[   54.026128][ T7193] R10: 0000000000000000 R11: 0000000000000212 R12: 0000000000000040
[   54.034077][ T7193] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   54.043533][ T7193] Kernel Offset: disabled
[   54.047854][ T7193] Rebooting in 86400 seconds..