Warning: Permanently added '10.128.0.186' (ECDSA) to the list of known hosts.
2019/10/12 16:11:21 fuzzer started
2019/10/12 16:11:22 dialing manager at 10.128.0.105:43913
2019/10/12 16:11:22 syscalls: 2523
2019/10/12 16:11:22 code coverage: enabled
2019/10/12 16:11:22 comparison tracing: enabled
2019/10/12 16:11:22 extra coverage: extra coverage is not supported by the kernel
2019/10/12 16:11:22 setuid sandbox: enabled
2019/10/12 16:11:22 namespace sandbox: enabled
2019/10/12 16:11:22 Android sandbox: /sys/fs/selinux/policy does not exist
2019/10/12 16:11:22 fault injection: enabled
2019/10/12 16:11:22 leak checking: CONFIG_DEBUG_KMEMLEAK is not enabled
2019/10/12 16:11:22 net packet injection: enabled
2019/10/12 16:11:22 net device setup: enabled
2019/10/12 16:11:22 concurrency sanitizer: enabled
syzkaller login: [   55.544112][ T7266] ==================================================================
[   55.552229][ T7266] BUG: KCSAN: data-race in tcp_poll / tcp_recvmsg
[   55.558615][ T7266] 
[   55.560924][ T7266] read to 0xffff888125da5774 of 4 bytes by task 7275 on cpu 1:
[   55.568467][ T7266]  tcp_poll+0x1cc/0x6b0
[   55.572602][ T7266]  sock_poll+0xed/0x250
[   55.576739][ T7266]  ep_item_poll.isra.0+0x90/0x190
[   55.581767][ T7266]  ep_send_events_proc+0x113/0x5c0
[   55.586854][ T7266]  ep_scan_ready_list.constprop.0+0x189/0x500
[   55.592898][ T7266]  ep_poll+0xe3/0x900
[   55.596858][ T7266]  do_epoll_wait+0x162/0x180
[   55.601445][ T7266]  __x64_sys_epoll_pwait+0xcd/0x170
[   55.606617][ T7266]  do_syscall_64+0xcf/0x2f0
[   55.611121][ T7266]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   55.616980][ T7266] 
[   55.619289][ T7266] write to 0xffff888125da5774 of 4 bytes by task 7266 on cpu 0:
[   55.626896][ T7266]  tcp_recvmsg+0xd86/0x1a30
[   55.631377][ T7266]  inet_recvmsg+0xbb/0x250
[   55.635770][ T7266]  sock_recvmsg+0x92/0xb0
[   55.640084][ T7266]  sock_read_iter+0x15f/0x1e0
[   55.644745][ T7266]  new_sync_read+0x389/0x4f0
[   55.649321][ T7266]  __vfs_read+0xb1/0xc0
[   55.653455][ T7266]  vfs_read+0x143/0x2c0
[   55.657593][ T7266]  ksys_read+0xd5/0x1b0
[   55.661730][ T7266]  __x64_sys_read+0x4c/0x60
[   55.666223][ T7266]  do_syscall_64+0xcf/0x2f0
[   55.670709][ T7266]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   55.676576][ T7266] 
[   55.678876][ T7266] Reported by Kernel Concurrency Sanitizer on:
[   55.685013][ T7266] CPU: 0 PID: 7266 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   55.692099][ T7266] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   55.702127][ T7266] ==================================================================
[   55.710159][ T7266] Kernel panic - not syncing: panic_on_warn set ...
[   55.716718][ T7266] CPU: 0 PID: 7266 Comm: syz-fuzzer Not tainted 5.3.0+ #0
[   55.723881][ T7266] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[   55.733925][ T7266] Call Trace:
[   55.737198][ T7266]  dump_stack+0xf5/0x159
[   55.741419][ T7266]  panic+0x209/0x639
[   55.745296][ T7266]  ? __x64_sys_read+0x4c/0x60
[   55.749953][ T7266]  ? vprintk_func+0x8d/0x140
[   55.754523][ T7266]  kcsan_report.cold+0xc/0x1b
[   55.759186][ T7266]  __kcsan_setup_watchpoint+0x3ee/0x510
[   55.764815][ T7266]  __tsan_write4+0x32/0x40
[   55.769215][ T7266]  tcp_recvmsg+0xd86/0x1a30
[   55.773707][ T7266]  ? __kcsan_setup_watchpoint+0x96/0x510
[   55.779317][ T7266]  inet_recvmsg+0xbb/0x250
[   55.783724][ T7266]  ? __tsan_read8+0x2c/0x30
[   55.788205][ T7266]  ? inet_sendpage+0x100/0x100
[   55.792947][ T7266]  sock_recvmsg+0x92/0xb0
[   55.797266][ T7266]  sock_read_iter+0x15f/0x1e0
[   55.801922][ T7266]  new_sync_read+0x389/0x4f0
[   55.806500][ T7266]  __vfs_read+0xb1/0xc0
[   55.810632][ T7266]  vfs_read+0x143/0x2c0
[   55.814764][ T7266]  ksys_read+0xd5/0x1b0
[   55.818900][ T7266]  __x64_sys_read+0x4c/0x60
[   55.823403][ T7266]  do_syscall_64+0xcf/0x2f0
[   55.827899][ T7266]  entry_SYSCALL_64_after_hwframe+0x44/0xa9
[   55.833767][ T7266] RIP: 0033:0x47c530
[   55.837651][ T7266] 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
[   55.857229][ T7266] RSP: 002b:000000c4203bf808 EFLAGS: 00000216 ORIG_RAX: 0000000000000000
[   55.865624][ T7266] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 000000000047c530
[   55.873585][ T7266] RDX: 0000000000001000 RSI: 000000c420052000 RDI: 0000000000000003
[   55.881538][ T7266] RBP: 000000c4203bf860 R08: 0000000000000000 R09: 0000000000000000
[   55.889481][ T7266] R10: 0000000000000000 R11: 0000000000000216 R12: 0000000000000010
[   55.897428][ T7266] R13: ffffffffffffffff R14: 0000000000000002 R15: ffffffffffffffff
[   55.906663][ T7266] Kernel Offset: disabled
[   55.910981][ T7266] Rebooting in 86400 seconds..