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

goroutine 2013501 [running]:
panic({0x106ef60, 0xc0084642a0})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc009ee1380 sp=0xc009ee12c0 pc=0x43781a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0xc00a27e000?, 0x11bd9c0, 0x10bb5a0)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc009ee13a8 sp=0xc009ee1380 pc=0x40b17c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc0003fc280, {0x1451b58, 0xc00a235500}, 0xc000b3d200, {0xc000669480?, 0xc00418f220?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x825 fp=0xc009ee15d8 sp=0xc009ee13a8 pc=0x7a1065
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc00030c100?, {0x1451b58, 0xc00a235500}, 0xc00096b200?, 0xc00a262f00?, 0xc009ee1788)
	pkg/sentry/vfs/vfs.go:296 +0x18f fp=0xc009ee1658 sp=0xc009ee15d8 pc=0x74954f
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc00a235500, 0xa235500?, 0xc007b17878?, 0xa779bf88?, 0x0?, 0x0)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x359 fp=0xc009ee1848 sp=0xc009ee1658 pc=0xa48e79
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0xc00a235500?, {{0xffffffffffffff9c}, {0x20000240}, {0x4}, {0x20000280}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x32 fp=0xc009ee1888 sp=0xc009ee1848 pc=0xa48af2
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00a235500, 0x109, {{0xffffffffffffff9c}, {0x20000240}, {0x4}, {0x20000280}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x755 fp=0xc009ee1c78 sp=0xc009ee1888 pc=0x9271f5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00a235500, 0xc009e8b488?, {{0xffffffffffffff9c}, {0x20000240}, {0x4}, {0x20000280}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x4a fp=0xc009ee1cd8 sp=0xc009ee1c78 pc=0x92842a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x2?, 0x0?, {{0xffffffffffffff9c}, {0x20000240}, {0x4}, {0x20000280}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x65 fp=0xc009ee1d38 sp=0xc009ee1cd8 pc=0x928105
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0038aef70?)
	pkg/sentry/kernel/task_syscall.go:257 +0x2f0 fp=0xc009ee1e30 sp=0xc009ee1d38 pc=0x927e70
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0074e0d80?, 0xc00a235500)
	pkg/sentry/kernel/task_run.go:259 +0xf3e fp=0xc009ee1f60 sp=0xc009ee1e30 pc=0x91c0be
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00a235500, 0x189a)
	pkg/sentry/kernel/task_run.go:94 +0x1bc fp=0xc009ee1fc0 sp=0xc009ee1f60 pc=0x91ab3c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc009ee1fe0 sp=0xc009ee1fc0 pc=0x9259ea
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc009ee1fe8 sp=0xc009ee1fe0 pc=0x46c701
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0xef