panic: interface conversion: vfs.DentryImpl is *vfs.anonDentry, not *kernfs.Dentry

goroutine 563650 [running]:
panic({0x1161a00, 0xc006d50a20})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc000aed428 sp=0xc000aed368 pc=0x43763a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0x40?, 0x12b01e0, 0x11adfa0)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc000aed450 sp=0xc000aed428 pc=0x40b17c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc000746140, {0x1574a18, 0xc00813b500}, 0xc000542900, {0xc00022e800?, 0xc002004960?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x9ea fp=0xc000aed688 sp=0xc000aed450 pc=0x7e986a
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc00071e100?, {0x1574a18, 0xc00813b500}, 0xc0020ac7e0?, 0xc0092fb200?, 0xc000aed840)
	pkg/sentry/vfs/vfs.go:296 +0x203 fp=0xc000aed708 sp=0xc000aed688 pc=0x77e903
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc00813b500, 0xaed930?, 0xaf2c08?, 0x2e1a305c?, 0x4?, 0x1400)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x3d5 fp=0xc000aed900 sp=0xc000aed708 pc=0xaf6815
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0xc00813b500?, {{0x4}, {0x20000100}, {0x3}, {0x200000c0}, {0x1400}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x6e fp=0xc000aed940 sp=0xc000aed900 pc=0xaf640e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00813b500, 0x109, {{0x4}, {0x20000100}, {0x3}, {0x200000c0}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc000aedc80 sp=0xc000aed940 pc=0x9ac36b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00813b500, 0x85?, {{0x4}, {0x20000100}, {0x3}, {0x200000c0}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc000aedce0 sp=0xc000aedc80 pc=0x9ad954
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000aedd88?, 0x964586?, {{0x4}, {0x20000100}, {0x3}, {0x200000c0}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc000aedd40 sp=0xc000aedce0 pc=0x9ad545
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0053888f0?)
	pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc000aede38 sp=0xc000aedd40 pc=0x9ad20c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0114d9e00?, 0xc00813b500)
	pkg/sentry/kernel/task_run.go:259 +0x12ff fp=0xc000aedf60 sp=0xc000aede38 pc=0x99ee9f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00813b500, 0x4566)
	pkg/sentry/kernel/task_run.go:94 +0x21c fp=0xc000aedfc0 sp=0xc000aedf60 pc=0x99d4fc
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc000aedfe0 sp=0xc000aedfc0 pc=0x9aa7ea
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc000aedfe8 sp=0xc000aedfe0 pc=0x46c521
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x105