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

goroutine 1556899 [running]:
panic({0x115e700, 0xc008bf5d10})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc0029dd428 sp=0xc0029dd368 pc=0x43763a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0x0?, 0x12acd20, 0x11aac20)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc0029dd450 sp=0xc0029dd428 pc=0x40b17c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc0006620a0, {0x15712d8, 0xc00be6b500}, 0xc000553200, {0xc0004c3e00?, 0xc0059afae0?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x9ea fp=0xc0029dd688 sp=0xc0029dd450 pc=0x7e922a
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc0001bc280?, {0x15712d8, 0xc00be6b500}, 0xc00345c7e0?, 0xc0086c8a00?, 0xc0029dd840)
	pkg/sentry/vfs/vfs.go:296 +0x203 fp=0xc0029dd708 sp=0xc0029dd688 pc=0x77e2c3
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc00be6b500, 0xbe6b500?, 0xc0029dd948?, 0xc8ab6f8c?, 0x4?, 0x0)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x3d5 fp=0xc0029dd900 sp=0xc0029dd708 pc=0xaf5575
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0xc00be6b500?, {{0xffffffffffffff9c}, {0x200000c0}, {0x4}, {0x20000100}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x6e fp=0xc0029dd940 sp=0xc0029dd900 pc=0xaf516e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00be6b500, 0x109, {{0xffffffffffffff9c}, {0x200000c0}, {0x4}, {0x20000100}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc0029ddc80 sp=0xc0029dd940 pc=0x9ab7ab
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00be6b500, 0x85?, {{0xffffffffffffff9c}, {0x200000c0}, {0x4}, {0x20000100}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc0029ddce0 sp=0xc0029ddc80 pc=0x9acd94
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0029ddd88?, 0x9639c6?, {{0xffffffffffffff9c}, {0x200000c0}, {0x4}, {0x20000100}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc0029ddd40 sp=0xc0029ddce0 pc=0x9ac985
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc006a2f6c0?)
	pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc0029dde38 sp=0xc0029ddd40 pc=0x9ac64c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc007c6da00?, 0xc00be6b500)
	pkg/sentry/kernel/task_run.go:259 +0x12ff fp=0xc0029ddf60 sp=0xc0029dde38 pc=0x99e2df
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00be6b500, 0xbf32)
	pkg/sentry/kernel/task_run.go:94 +0x21c fp=0xc0029ddfc0 sp=0xc0029ddf60 pc=0x99c93c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc0029ddfe0 sp=0xc0029ddfc0 pc=0x9a9c2a
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc0029ddfe8 sp=0xc0029ddfe0 pc=0x46c521
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x105