panic: MountNamespace.FindInode: path is empty

goroutine 123 [running]:
gvisor.googlesource.com/gvisor/pkg/sentry/fs.(*MountNamespace).FindLink(0xc420123320, 0xc75e00, 0xc4201aa000, 0xc420236820, 0xc420237540, 0x0, 0x0, 0x28, 0x0, 0x5c, ...)
	pkg/sentry/fs/mounts.go:352 +0x500
gvisor.googlesource.com/gvisor/pkg/sentry/fs.(*MountNamespace).FindInode(0xc420123320, 0xc75e00, 0xc4201aa000, 0xc420236820, 0xc420237540, 0x0, 0x0, 0x28, 0x80, 0x5c, ...)
	pkg/sentry/fs/mounts.go:437 +0x71
gvisor.googlesource.com/gvisor/pkg/sentry/loader.openPath(0xc75e00, 0xc4201aa000, 0xc420123320, 0xc420236820, 0xc420237540, 0x28, 0x0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/loader/loader.go:58 +0xc1
gvisor.googlesource.com/gvisor/pkg/sentry/loader.loadPath(0xc75e00, 0xc4201aa000, 0xc4201b0580, 0xc420123320, 0xc420236820, 0xc420237540, 0x28, 0xc4202989c0, 0x0, 0x0, ...)
	pkg/sentry/loader/loader.go:135 +0x170
gvisor.googlesource.com/gvisor/pkg/sentry/loader.Load(0xc75e00, 0xc4201aa000, 0xc4201b0580, 0xc420123320, 0xc420236820, 0xc420237540, 0x28, 0xc4202989c0, 0x0, 0x0, ...)
	pkg/sentry/loader/loader.go:195 +0x158
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Kernel).LoadTaskImage(0xc4202ae7e0, 0xc75e00, 0xc4201aa000, 0xc420123320, 0xc420236820, 0xc420237540, 0x28, 0x0, 0x0, 0xc42025a100, ...)
	pkg/sentry/kernel/task_context.go:157 +0x1b9
gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.Execve(0xc4201aa000, 0x20002580, 0x20002740, 0x20002800, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/sys_thread.go:106 +0x2c8
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc4201aa000, 0x3b, 0x20002580, 0x20002740, 0x20002800, 0x0, 0x0, 0x0, 0xc42069dca8, 0xbb6320, ...)
	pkg/sentry/kernel/task_syscall.go:162 +0x307
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc4201aa000, 0x3b, 0x20002580, 0x20002740, 0x20002800, 0x0, 0x0, 0x0, 0x0, 0x0)
	pkg/sentry/kernel/task_syscall.go:278 +0x62
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc4201aa000, 0x3b, 0x20002580, 0x20002740, 0x20002800, 0x0, 0x0, 0x0, 0xc4204de400, 0xc42069de00)
	pkg/sentry/kernel/task_syscall.go:241 +0x91
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc4201aa000, 0x2, 0xc42014e480)
	pkg/sentry/kernel/task_syscall.go:216 +0x10c
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc4201aa000, 0xc69020, 0x0)
	pkg/sentry/kernel/task_run.go:217 +0xed8
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run(0xc4201aa000, 0xa)
	pkg/sentry/kernel/task_run.go:95 +0x174
created by gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:251 +0x100