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

goroutine 152 [running]:
panic({0x1161a00, 0xc000d00600})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc000d1b428 sp=0xc000d1b368 pc=0x43763a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0x40?, 0x12b01e0, 0x11adfa0)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc000d1b450 sp=0xc000d1b428 pc=0x40b17c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc0000fe140, {0x1574a58, 0xc000a76000}, 0xc0001f9680, {0xc000462600?, 0xc000d081e0?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x9ea fp=0xc000d1b688 sp=0xc000d1b450 pc=0x7e986a
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc00047c100?, {0x1574a58, 0xc000a76000}, 0xc0006c21b0?, 0xc00093c800?, 0xc000d1b840)
	pkg/sentry/vfs/vfs.go:296 +0x203 fp=0xc000d1b708 sp=0xc000d1b688 pc=0x77e903
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc000a76000, 0xd1b930?, 0xaf2c08?, 0xa76000?, 0x400000002?, 0x1400)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x3d5 fp=0xc000d1b900 sp=0xc000d1b708 pc=0xaf6815
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0x40d7df?, {{0x4}, {0x20000100}, {0x3}, {0x200000c0}, {0x1400}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x6e fp=0xc000d1b940 sp=0xc000d1b900 pc=0xaf640e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000a76000, 0x109, {{0x4}, {0x20000100}, {0x3}, {0x200000c0}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc000d1bc80 sp=0xc000d1b940 pc=0x9ac36b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000a76000, 0x0?, {{0x4}, {0x20000100}, {0x3}, {0x200000c0}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc000d1bce0 sp=0xc000d1bc80 pc=0x9ad954
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00024c310?, 0xc000d1be28?, {{0x4}, {0x20000100}, {0x3}, {0x200000c0}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc000d1bd40 sp=0xc000d1bce0 pc=0x9ad545
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000a78000?)
	pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc000d1be38 sp=0xc000d1bd40 pc=0x9ad20c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000d0a000?, 0xc000a76000)
	pkg/sentry/kernel/task_run.go:259 +0x12ff fp=0xc000d1bf60 sp=0xc000d1be38 pc=0x99ee9f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000a76000, 0x1b)
	pkg/sentry/kernel/task_run.go:94 +0x21c fp=0xc000d1bfc0 sp=0xc000d1bf60 pc=0x99d4fc
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc000d1bfe0 sp=0xc000d1bfc0 pc=0x9aa7ea
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc000d1bfe8 sp=0xc000d1bfe0 pc=0x46c521
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x105