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

goroutine 165 [running]:
panic({0x31f420, 0xc00088b830})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc00082ce90 sp=0xc00082cdd0 pc=0x124c67a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0xc0005287b8?, 0x474240, 0x36c7a0)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc00082ceb8 sp=0xc00082ce90 pc=0x121fb5c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc00048a3c0, {0x835a98, 0xc000a18a80}, 0xc00028d680, {0xc000266180?, 0xc000694280?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0xa4e fp=0xc00082d118 sp=0xc00082ceb8 pc=0x182adce
gvisor.dev/gvisor/pkg/sentry/fsimpl/proc.(*filesystem).LinkAt(0xc00048a3c0, {0x835a98, 0xc000a18a80}, 0x1286685?, {0xc000266180?, 0xc000694280?})
	<autogenerated>:1 +0x8a fp=0xc00082d180 sp=0xc00082d118 pc=0x1dc986a
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc000a19320?, {0x835a98, 0xc000a18a80}, 0xc000528750?, 0xc00018ca00?, 0xc00082d3f8)
	pkg/sentry/vfs/vfs.go:296 +0x31d fp=0xc00082d230 sp=0xc00082d180 pc=0x178fb3d
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc000a18a80, 0x1286685?, 0x1446b72?, 0x1286657?, 0x101aacd38?, 0x1400)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x38c fp=0xc00082d4a8 sp=0xc00082d230 pc=0x1c9538c
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0x1284eb9?, {{0x4}, {0x20000100}, {0x3}, {0x200000c0}, {0x1400}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x48 fp=0xc00082d500 sp=0xc00082d4a8 pc=0x1c94fa8
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000a18a80, 0x109, {{0x4}, {0x20000100}, {0x3}, {0x200000c0}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x9b9 fp=0xc00082d9e0 sp=0xc00082d500 pc=0x1aad659
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000a18a80, 0x0?, {{0x4}, {0x20000100}, {0x3}, {0x200000c0}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x7d fp=0xc00082da78 sp=0xc00082d9e0 pc=0x1aaf43d
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0008121a0?, 0xc000a120f0?, {{0x4}, {0x20000100}, {0x3}, {0x200000c0}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x8f fp=0xc00082daf0 sp=0xc00082da78 pc=0x1aaedef
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000a18a80)
	pkg/sentry/kernel/task_syscall.go:257 +0x4c5 fp=0xc00082dc18 sp=0xc00082daf0 pc=0x1aae985
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000a18a80?, 0xc000a18a80)
	pkg/sentry/kernel/task_run.go:259 +0x1b76 fp=0xc00082dec8 sp=0xc00082dc18 pc=0x1a99456
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000a18a80, 0xd)
	pkg/sentry/kernel/task_run.go:94 +0x37b fp=0xc00082dfb0 sp=0xc00082dec8 pc=0x1a96f3b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x48 fp=0xc00082dfe0 sp=0xc00082dfb0 pc=0x1aab148
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc00082dfe8 sp=0xc00082dfe0 pc=0x1283701
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x1ad