WARNING: DATA RACE
Read at 0x00c0013fad58 by goroutine 732:
  gvisor.googlesource.com/gvisor/pkg/sentry/fs/fsutil.(*InodeSimpleAttributes).UnstableAttr()
      pkg/sentry/fs/fsutil/inode.go:114 +0x91
  gvisor.googlesource.com/gvisor/pkg/sentry/fs/tmpfs.(*Dir).UnstableAttr()
      pkg/sentry/fs/tmpfs/tmpfs.go:189 +0xc1
  gvisor.googlesource.com/gvisor/pkg/sentry/fs.(*Inode).UnstableAttr()
      pkg/sentry/fs/inode.go:247 +0x25f
  gvisor.googlesource.com/gvisor/pkg/sentry/fs.(*Inode).CheckOwnership()
      pkg/sentry/fs/inode.go:397 +0x6d
  gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.utimes.func1()
      pkg/sentry/syscalls/linux/sys_file.go:1679 +0xa8
  gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.utimes()
      pkg/sentry/syscalls/linux/sys_file.go:1712 +0x1e8
  gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.Futimesat()
      pkg/sentry/syscalls/linux/sys_file.go:1827 +0x101
  gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).executeSyscall()
      pkg/sentry/kernel/task_syscall.go:165 +0x17a
  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 +0x10c
DIAGNOSIS:
I0123 06:13:57.361112   48521 x:0] ***************************
I0123 06:13:57.361291   48521 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-3]
I0123 06:13:57.361410   48521 x:0] Git Revision: c1be25b78d89a3a55a32a7aa10724134eda9813d
I0123 06:13:57.361436   48521 x:0] PID: 48521
I0123 06:13:57.361490   48521 x:0] UID: 0, GID: 0
I0123 06:13:57.361542   48521 x:0] Configuration:
I0123 06:13:57.361576   48521 x:0] 		RootDir: /syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root
I0123 06:13:57.361627   48521 x:0] 		Platform: ptrace
I0123 06:13:57.361656   48521 x:0] 		FileAccess: shared, overlay: false
I0123 06:13:57.361698   48521 x:0] 		Network: sandbox, logging: false
I0123 06:13:57.361728   48521 x:0] 		Strace: false, max size: 1024, syscalls: []
I0123 06:13:57.361774   48521 x:0] ***************************
D0123 06:13:57.361835   48521 x:0] Load container "/syzkaller/managers/ptrace-proxy-sandbox-race/workdir/gvisor_root" "ci-gvisor-ptrace-proxy-sandbox-race-3"
D0123 06:13:57.365296   48521 x:0] Signal container "ci-gvisor-ptrace-proxy-sandbox-race-3": signal 0
D0123 06:13:57.365386   48521 x:0] Signal sandbox "ci-gvisor-ptrace-proxy-sandbox-race-3"
D0123 06:13:57.365424   48521 x:0] Connecting to sandbox "ci-gvisor-ptrace-proxy-sandbox-race-3"
D0123 06:13:57.366092   48521 x:0] urpc: successfully marshalled 117 bytes.
D0123 06:13:57.367083   48521 x:0] urpc: unmarshal success.
I0123 06:13:57.367188   48521 x:0] Found sandbox "ci-gvisor-ptrace-proxy-sandbox-race-3", PID: 15735
I0123 06:13:57.367267   48521 x:0] Retrieving sandbox stacks
D0123 06:13:57.367296   48521 x:0] Stacks sandbox "ci-gvisor-ptrace-proxy-sandbox-race-3"
D0123 06:13:57.367390   48521 x:0] Connecting to sandbox "ci-gvisor-ptrace-proxy-sandbox-race-3"
D0123 06:13:57.367538   48521 x:0] urpc: successfully marshalled 36 bytes.
D0123 06:13:57.713371   48521 x:0] urpc: unmarshal success.
I0123 06:13:57.713580   48521 x:0]      *** Stack dump ***
goroutine 4338133 [running]:
gvisor.googlesource.com/gvisor/pkg/log.Stacks(0x459e01, 0x28, 0x45d3f2, 0x4e466d)
	pkg/log/log.go:259 +0xd1
gvisor.googlesource.com/gvisor/runsc/boot.(*debug).Stacks(0x22e11f8, 0x22e11f8, 0xc001e30330, 0x0, 0x0)
	runsc/boot/debug.go:26 +0x38
reflect.Value.call(0xc000308960, 0xc0003201c0, 0x13, 0x10d4963, 0x4, 0xc000863e68, 0x3, 0x3, 0x4f058e, 0xf906a0, ...)
	GOROOT/src/reflect/value.go:447 +0x635
reflect.Value.Call(0xc000308960, 0xc0003201c0, 0x13, 0xc000863e68, 0x3, 0x3, 0x0, 0x22e11f8, 0x16)
	GOROOT/src/reflect/value.go:308 +0xc1
gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).handleOne(0xc00031e090, 0xc00137ed50, 0x0, 0x0)
	pkg/urpc/urpc.go:298 +0x613
gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).handleRegistered(0xc00031e090, 0xc00137ed50, 0xc00031e090, 0xc00137ed50)
	pkg/urpc/urpc.go:393 +0x43
gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).StartHandling.func1(0xc00031e090, 0xc00137ed50)
	pkg/urpc/urpc.go:413 +0x77
created by gvisor.googlesource.com/gvisor/pkg/urpc.(*Server).StartHandling
	pkg/urpc/urpc.go:411 +0x6f

goroutine 1 [semacquire, 33 minutes]:
sync.runtime_Semacquire(0xc00027e214)
	GOROOT/src/runtime/sema.go:56 +0x39
sync.(*WaitGroup).Wait(0xc00027e214)
	GOROOT/src/sync/waitgroup.go:130 +0xb5
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Kernel).WaitExited(0xc000288000)
	pkg/sentry/kernel/kernel.go:801 +0x57
gvisor.googlesource.com/gvisor/runsc/boot.(*Loader).WaitExit(0xc000288280, 0x0, 0x0)
	runsc/boot/loader.go:747 +0x50
gvisor.googlesource.com/gvisor/runsc/cmd.(*Boot).Execute(0xc00023e090, 0x1219b40, 0xc0000ce030, 0xc000106ae0, 0xc0001c3060, 0x2, 0x2, 0x0)
	runsc/cmd/boot.go:237 +0x121d
github.com/google/subcommands.(*Commander).Execute(0xc000124000, 0x1219b40, 0xc0000ce030, 0xc0001c3060, 0x2, 0x2, 0x1)
	external/com_github_google_subcommands/subcommands.go:141 +0x525
github.com/google/subcommands.Execute(0x1219b40, 0xc0000ce030, 0xc0001c3060, 0x2, 0x2, 0xc0000f0d40)
	external/com_github_google_subcommands/subcommands.go:371 +0x81
main.main()
	runsc/main.go:221 +0x1ef8