panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x6f654f]

goroutine 149363 [running]:
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Credentials(0x0, 0x0)
	pkg/sentry/kernel/task_identity.go:27 +0x2f
gvisor.googlesource.com/gvisor/pkg/sentry/kernel/fasync.(*FileAsync).Callback(0xc0014ba230, 0xc0014ba238)
	pkg/sentry/kernel/fasync/fasync.go:61 +0x6d
gvisor.googlesource.com/gvisor/pkg/waiter.(*Queue).Notify(0xc00060c7c0, 0xc004680001)
	pkg/waiter/waiter.go:190 +0xa1
gvisor.googlesource.com/gvisor/pkg/tcpip/transport/unix.(*connectedEndpoint).CloseNotify(0xc003d61100)
	pkg/tcpip/transport/unix/unix.go:653 +0x39
gvisor.googlesource.com/gvisor/pkg/tcpip/transport/unix.(*connectionedEndpoint).Close(0xc003846620)
	pkg/tcpip/transport/unix/connectioned.go:217 +0x1a5
gvisor.googlesource.com/gvisor/pkg/sentry/socket/unix.(*SocketOperations).DecRef.func1()
	pkg/sentry/socket/unix/unix.go:75 +0x33
gvisor.googlesource.com/gvisor/pkg/refs.(*AtomicRefCount).DecRefWithDestructor(0xc00060c900, 0xc0031199f8)
	pkg/refs/refcounter.go:295 +0x188
gvisor.googlesource.com/gvisor/pkg/sentry/socket/unix.(*SocketOperations).DecRef(0xc00060c900)
	pkg/sentry/socket/unix/unix.go:74 +0x50
gvisor.googlesource.com/gvisor/pkg/sentry/socket/unix.(*SocketOperations).Release(0xc00060c900)
	pkg/sentry/socket/unix/unix.go:83 +0x2b
gvisor.googlesource.com/gvisor/pkg/sentry/fs.(*File).DecRef.func1()
	pkg/sentry/fs/file.go:125 +0x76
gvisor.googlesource.com/gvisor/pkg/refs.(*AtomicRefCount).DecRefWithDestructor(0xc0017c8280, 0xc003119ab8)
	pkg/refs/refcounter.go:295 +0x188
gvisor.googlesource.com/gvisor/pkg/sentry/fs.(*File).DecRef(0xc0017c8280)
	pkg/sentry/fs/file.go:119 +0x50
gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.Read(0xc0040a9b00, 0x5, 0x20001280, 0x29a, 0x0, 0x0, 0x0, 0x0, 0x0, 0xca36e0, ...)
	pkg/sentry/syscalls/linux/sys_read.go:69 +0x2fe
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0040a9b00, 0x0, 0x5, 0x20001280, 0x29a, 0x0, 0x0, 0x0, 0xc003b93800, 0xbd1b00, ...)
	pkg/sentry/kernel/task_syscall.go:162 +0x30a
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0040a9b00, 0x0, 0x5, 0x20001280, 0x29a, 0x0, 0x0, 0x0, 0x0, 0x0)
	pkg/sentry/kernel/task_syscall.go:280 +0x69
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0040a9b00, 0x0, 0x5, 0x20001280, 0x29a, 0x0, 0x0, 0x0, 0x100020000, 0x0)
	pkg/sentry/kernel/task_syscall.go:241 +0x99
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0040a9b00, 0x2, 0xc000412d80)
	pkg/sentry/kernel/task_syscall.go:216 +0x142
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc0040a9b00, 0xca1f40, 0x0)
	pkg/sentry/kernel/task_run.go:219 +0xfda
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run(0xc0040a9b00, 0x33f)
	pkg/sentry/kernel/task_run.go:95 +0x163
created by gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:275 +0xfe