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

goroutine 1457699 [running]:
panic({0x1161c80, 0xc000db03c0})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc001e0b428 sp=0xc001e0b368 pc=0x43763a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0x40?, 0x12b0480, 0x11ae220)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc001e0b450 sp=0xc001e0b428 pc=0x40b17c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc00061a0a0, {0x1574f18, 0xc0040bf500}, 0xc003ff2000, {0xc00078b480?, 0xc006b09400?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x9ea fp=0xc001e0b688 sp=0xc001e0b450 pc=0x7e98ea
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc00035c100?, {0x1574f18, 0xc0040bf500}, 0xc00a642120?, 0xc0071dae00?, 0xc001e0b840)
	pkg/sentry/vfs/vfs.go:296 +0x203 fp=0xc001e0b708 sp=0xc001e0b688 pc=0x77e983
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc0040bf500, 0xb27040?, 0xc00a6422e0?, 0x9dff6f88?, 0x0?, 0x1400)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x3d5 fp=0xc001e0b900 sp=0xc001e0b708 pc=0xaf7275
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0xc0040bf500?, {{0xffffffffffffff9c}, {0x20000000}, {0x3}, {0x20000040}, {0x1400}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x6e fp=0xc001e0b940 sp=0xc001e0b900 pc=0xaf6e6e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0040bf500, 0x109, {{0xffffffffffffff9c}, {0x20000000}, {0x3}, {0x20000040}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc001e0bc80 sp=0xc001e0b940 pc=0x9ac82b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0040bf500, 0x85?, {{0xffffffffffffff9c}, {0x20000000}, {0x3}, {0x20000040}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc001e0bce0 sp=0xc001e0bc80 pc=0x9ade14
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001e0bd88?, 0x964a46?, {{0xffffffffffffff9c}, {0x20000000}, {0x3}, {0x20000040}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc001e0bd40 sp=0xc001e0bce0 pc=0x9ada05
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00469b040?)
	pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc001e0be38 sp=0xc001e0bd40 pc=0x9ad6cc
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0051cf480?, 0xc0040bf500)
	pkg/sentry/kernel/task_run.go:259 +0x12ff fp=0xc001e0bf60 sp=0xc001e0be38 pc=0x99f35f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0040bf500, 0xbf88)
	pkg/sentry/kernel/task_run.go:94 +0x21c fp=0xc001e0bfc0 sp=0xc001e0bf60 pc=0x99d9bc
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc001e0bfe0 sp=0xc001e0bfc0 pc=0x9aacaa
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc001e0bfe8 sp=0xc001e0bfe0 pc=0x46c521
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x105