WARNING: DATA RACE
Write at 0x00c000420bf8 by goroutine 420:
  gvisor.googlesource.com/gvisor/pkg/sentry/socket/netlink.(*Socket).SetSockOpt()
      pkg/sentry/socket/netlink/socket.go:338 +0x117
  gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.SetSockOpt()
      pkg/sentry/syscalls/linux/sys_socket.go:521 +0x339
  gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).executeSyscall()
      pkg/sentry/kernel/task_syscall.go:165 +0x178
  gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke()
      pkg/sentry/kernel/task_syscall.go:283 +0xb4
  gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter()
      pkg/sentry/kernel/task_syscall.go:244 +0x109
  gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscall()
      pkg/sentry/kernel/task_syscall.go:219 +0x1b6
  gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute()
      pkg/sentry/kernel/task_run.go:215 +0x1826
DIAGNOSIS:
I0316 02:37:50.962677    2277 x:0] ***************************
I0316 02:37:50.962835    2277 x:0] Args: [/syzkaller/managers/ptrace-proxy-sandbox-race/current/image -root /syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root -watchdog-action=panic -network=none -debug -platform=ptrace -file-access=shared -network=sandbox debug -stacks ci-gvisor-ptrace-proxy-sandbox-race-2]
I0316 02:37:50.962903    2277 x:0] Git Revision: 5496be7c5ddedd6ec03004143501acb225eda357
I0316 02:37:50.962999    2277 x:0] PID: 2277
I0316 02:37:50.963025    2277 x:0] UID: 0, GID: 0
I0316 02:37:50.963049    2277 x:0] Configuration:
I0316 02:37:50.963077    2277 x:0] 		RootDir: /syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root
I0316 02:37:50.963112    2277 x:0] 		Platform: ptrace
I0316 02:37:50.963147    2277 x:0] 		FileAccess: shared, overlay: false
I0316 02:37:50.963174    2277 x:0] 		Network: sandbox, logging: false
I0316 02:37:50.963224    2277 x:0] 		Strace: false, max size: 1024, syscalls: []
I0316 02:37:50.963251    2277 x:0] ***************************
D0316 02:37:50.963305    2277 x:0] Load container "/syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root" "ci-gvisor-ptrace-proxy-sandbox-race-2"
D0316 02:37:50.971467    2277 x:0] Signal container "ci-gvisor-ptrace-proxy-sandbox-race-2": signal 0
D0316 02:37:50.971631    2277 x:0] Signal sandbox "ci-gvisor-ptrace-proxy-sandbox-race-2"
D0316 02:37:50.971685    2277 x:0] Connecting to sandbox "ci-gvisor-ptrace-proxy-sandbox-race-2"
D0316 02:37:50.973743    2277 x:0] urpc: successfully marshalled 117 bytes.
D0316 02:37:50.976855    2277 x:0] urpc: unmarshal success.
I0316 02:37:50.976979    2277 x:0] Found sandbox "ci-gvisor-ptrace-proxy-sandbox-race-2", PID: 899
I0316 02:37:50.977037    2277 x:0] Retrieving sandbox stacks
D0316 02:37:50.977067    2277 x:0] Stacks sandbox "ci-gvisor-ptrace-proxy-sandbox-race-2"
D0316 02:37:50.977105    2277 x:0] Connecting to sandbox "ci-gvisor-ptrace-proxy-sandbox-race-2"
D0316 02:37:50.977226    2277 x:0] urpc: successfully marshalled 36 bytes.
D0316 02:37:51.164898    2277 x:0] urpc: unmarshal success.
I0316 02:37:51.165137    2277 x:0]      *** Stack dump ***
goroutine 1576 [running]:
gvisor.googlesource.com/gvisor/pkg/log.Stacks(0x45c001, 0xc000307080, 0xc0009e0330, 0xc000940380)
	pkg/log/log.go:259 +0xb6
gvisor.googlesource.com/gvisor/runsc/boot.(*debug).Stacks(0x2381a78, 0x2381a78, 0xc00068a070, 0x0, 0x0)
	runsc/boot/debug.go:26 +0x38
reflect.Value.call(0xc000307080, 0xc00032c1c0, 0x13, 0x10f5ac8, 0x4, 0xc00066deb8, 0x3, 0x3, 0x4a765e, 0xfab940, ...)
	GOROOT/src/reflect/value.go:447 +0x63f
reflect.Value.Call(0xc000307080, 0xc00032c1c0, 0x13, 0xc00066deb8, 0x3, 0x3, 0x0, 0x2381a78, 0x16)
	GOROOT/src/reflect/value.go:308 +0xc1
gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).handleOne(0xc00032a090, 0xc0002931d0, 0x0, 0x0)
	pkg/urpc/urpc.go:325 +0x63f
gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).handleRegistered(0xc00032a090, 0xc0002931d0, 0xc00032a090, 0xc0002931d0)
	pkg/urpc/urpc.go:420 +0x43
gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).StartHandling.func1(0xc00032a090, 0xc0002931d0)
	pkg/urpc/urpc.go:440 +0x77
created by gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).StartHandling
	pkg/urpc/urpc.go:438 +0x6f

goroutine 1 [semacquire]:
sync.runtime_Semacquire(0xc00014d164)
	GOROOT/src/runtime/sema.go:56 +0x39
sync.(*WaitGroup).Wait(0xc00014d164)
	GOROOT/src/sync/waitgroup.go:130 +0xb2
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Kernel).WaitExited(...)
	pkg/sentry/kernel/kernel.go:809
gvisor.googlesource.com/gvisor/runsc/boot.(*Loader).WaitExit(0xc00026a8c0, 0x0, 0x0)
	runsc/boot/loader.go:781 +0x74
gvisor.googlesource.com/gvisor/runsc/cmd.(*Boot).Execute(0xc000272120, 0x127d460, 0xc00013c010, 0xc000142a80, 0xc0001c30a0, 0x2, 0x2, 0x0)
	runsc/cmd/boot.go:236 +0x1191
github.com/google/subcommands.(*Commander).Execute(0xc000148000, 0x127d460, 0xc00013c010, 0xc0001c30a0, 0x2, 0x2, 0x203000)
	external/com_github_google_subcommands/subcommands.go:141 +0x522
github.com/google/subcommands.Execute(...)
	external/com_github_google_subcommands/subcommands.go:371
main.main()
	runsc/main.go:229 +0x246f