panic: MountNamespace.FindInode: path is empty

goroutine 1697809 [running]:
gvisor.googlesource.com/gvisor/pkg/sentry/fs.(*MountNamespace).FindLink(0xc42020b620, 0xc74780, 0xc422dce900, 0xc4202403c0, 0xc42229b5e0, 0x0, 0x0, 0x28, 0x0, 0x0, ...)
	pkg/sentry/fs/mounts.go:352 +0x500
gvisor.googlesource.com/gvisor/pkg/sentry/fs.(*MountNamespace).FindInode(0xc42020b620, 0xc74780, 0xc422dce900, 0xc4202403c0, 0xc42229b5e0, 0x0, 0x0, 0x28, 0x0, 0x0, ...)
	pkg/sentry/fs/mounts.go:437 +0x71
gvisor.googlesource.com/gvisor/pkg/sentry/loader.openPath(0xc74780, 0xc422dce900, 0xc42020b620, 0xc4202403c0, 0xc42229b5e0, 0x28, 0x0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/loader/loader.go:58 +0xc1
gvisor.googlesource.com/gvisor/pkg/sentry/loader.loadPath(0xc74780, 0xc422dce900, 0xc420b11900, 0xc42020b620, 0xc4202403c0, 0xc42229b5e0, 0x28, 0xc4202204e0, 0x0, 0x0, ...)
	pkg/sentry/loader/loader.go:135 +0x170
gvisor.googlesource.com/gvisor/pkg/sentry/loader.Load(0xc74780, 0xc422dce900, 0xc420b11900, 0xc42020b620, 0xc4202403c0, 0xc42229b5e0, 0x28, 0xc4202204e0, 0x0, 0x0, ...)
	pkg/sentry/loader/loader.go:195 +0x158
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Kernel).LoadTaskImage(0xc420202a20, 0xc74780, 0xc422dce900, 0xc42020b620, 0xc4202403c0, 0xc42229b5e0, 0x28, 0x0, 0x0, 0x0, ...)
	pkg/sentry/kernel/task_context.go:157 +0x1b9
gvisor.googlesource.com/gvisor/pkg/sentry/syscalls/linux.Execve(0xc422dce900, 0x200008c0, 0x20000900, 0x20000980, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	pkg/sentry/syscalls/linux/sys_thread.go:106 +0x2c8
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc422dce900, 0x3b, 0x200008c0, 0x20000900, 0x20000980, 0x0, 0x0, 0x0, 0xc422510ca8, 0xbb4e80, ...)
	pkg/sentry/kernel/task_syscall.go:162 +0x307
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc422dce900, 0x3b, 0x200008c0, 0x20000900, 0x20000980, 0x0, 0x0, 0x0, 0x0, 0x0)
	pkg/sentry/kernel/task_syscall.go:278 +0x62
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc422dce900, 0x3b, 0x200008c0, 0x20000900, 0x20000980, 0x0, 0x0, 0x0, 0xc42055a400, 0xc422510e00)
	pkg/sentry/kernel/task_syscall.go:241 +0x91
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc422dce900, 0x2, 0xc422b64900)
	pkg/sentry/kernel/task_syscall.go:216 +0x10c
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*runApp).execute(0x0, 0xc422dce900, 0xc679a0, 0x0)
	pkg/sentry/kernel/task_run.go:217 +0xed8
gvisor.googlesource.com/gvisor/pkg/sentry/kernel.(*Task).run(0xc422dce900, 0x97a4)
	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