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

goroutine 57974 [running]:
panic({0x31f0a0, 0xc003b03c20})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc0001f6e90 sp=0xc0001f6dd0 pc=0x124a55a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0xc00071dd18?, 0x473c40, 0x36c380)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc0001f6eb8 sp=0xc0001f6e90 pc=0x121da3c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc00034c500, {0x834c78, 0xc00537aa80}, 0xc004818480, {0xc0002eee00?, 0xc003792690?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0xa4e fp=0xc0001f7118 sp=0xc0001f6eb8 pc=0x1828c0e
gvisor.dev/gvisor/pkg/sentry/fsimpl/sys.(*filesystem).LinkAt(0xc00034c500, {0x834c78, 0xc00537aa80}, 0x1284565?, {0xc0002eee00?, 0xc003792690?})
	<autogenerated>:1 +0x8a fp=0xc0001f7180 sp=0xc0001f7118 pc=0x210b2ea
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc00537b320?, {0x834c78, 0xc00537aa80}, 0xc00071dcb0?, 0xc003e40400?, 0xc0001f73f8)
	pkg/sentry/vfs/vfs.go:296 +0x31d fp=0xc0001f7230 sp=0xc0001f7180 pc=0x178d97d
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc00537aa80, 0x1284565?, 0x1444a52?, 0x1284537?, 0x101aaab78?, 0x0)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x38c fp=0xc0001f74a8 sp=0xc0001f7230 pc=0x1c92b8c
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0xc00537aa80?, {{0xffffffffffffff9c}, {0x20000000}, {0x4}, {0x20000040}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x48 fp=0xc0001f7500 sp=0xc0001f74a8 pc=0x1c927a8
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00537aa80, 0x109, {{0xffffffffffffff9c}, {0x20000000}, {0x4}, {0x20000040}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x9b9 fp=0xc0001f79e0 sp=0xc0001f7500 pc=0x1aab499
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00537aa80, 0x0?, {{0xffffffffffffff9c}, {0x20000000}, {0x4}, {0x20000040}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x7d fp=0xc0001f7a78 sp=0xc0001f79e0 pc=0x1aad27d
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc00326b040?, 0xc0029d4e10?, {{0xffffffffffffff9c}, {0x20000000}, {0x4}, {0x20000040}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x8f fp=0xc0001f7af0 sp=0xc0001f7a78 pc=0x1aacc2f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00537aa80)
	pkg/sentry/kernel/task_syscall.go:257 +0x4c5 fp=0xc0001f7c18 sp=0xc0001f7af0 pc=0x1aac7c5
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc00537aa80?, 0xc00537aa80)
	pkg/sentry/kernel/task_run.go:259 +0x1b76 fp=0xc0001f7ec8 sp=0xc0001f7c18 pc=0x1a97296
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00537aa80, 0x867)
	pkg/sentry/kernel/task_run.go:94 +0x37b fp=0xc0001f7fb0 sp=0xc0001f7ec8 pc=0x1a94d7b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x48 fp=0xc0001f7fe0 sp=0xc0001f7fb0 pc=0x1aa8f88
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc0001f7fe8 sp=0xc0001f7fe0 pc=0x12815e1
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x1ad