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

goroutine 4213833 [running]:
panic({0x106c720, 0xc010870a20})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc002209380 sp=0xc0022092c0 pc=0x43781a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0xc0022093e0?, 0x11bae60, 0x10b8cc0)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc0022093a8 sp=0xc002209380 pc=0x40b17c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc0003f4280, {0x144e898, 0xc00a930000}, 0xc0113f6000, {0xc01013b080?, 0xc00b183400?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x825 fp=0xc0022095d8 sp=0xc0022093a8 pc=0x7a09a5
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc00012c100?, {0x144e898, 0xc00a930000}, 0xc000786cf0?, 0xc00a1e8200?, 0xc002209788)
	pkg/sentry/vfs/vfs.go:296 +0x18f fp=0xc002209658 sp=0xc0022095d8 pc=0x748e8f
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc00a930000, 0x7?, 0x1?, 0x8ce5df88?, 0x0?, 0x400)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x359 fp=0xc002209848 sp=0xc002209658 pc=0xa46d59
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0xc00a930000?, {{0xffffffffffffff9c}, {0x20000100}, {0x3}, {0x20000140}, {0x400}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x32 fp=0xc002209888 sp=0xc002209848 pc=0xa469d2
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00a930000, 0x109, {{0xffffffffffffff9c}, {0x20000100}, {0x3}, {0x20000140}, {0x400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x755 fp=0xc002209c78 sp=0xc002209888 pc=0x9260d5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00a930000, 0x0?, {{0xffffffffffffff9c}, {0x20000100}, {0x3}, {0x20000140}, {0x400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x4a fp=0xc002209cd8 sp=0xc002209c78 pc=0x92730a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0001fbb00?, 0xc002209e20?, {{0xffffffffffffff9c}, {0x20000100}, {0x3}, {0x20000140}, {0x400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x65 fp=0xc002209d38 sp=0xc002209cd8 pc=0x926fe5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc01063ce70?)
	pkg/sentry/kernel/task_syscall.go:257 +0x2f0 fp=0xc002209e30 sp=0xc002209d38 pc=0x926d50
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc01013b000?, 0xc00a930000)
	pkg/sentry/kernel/task_run.go:259 +0xf3e fp=0xc002209f60 sp=0xc002209e30 pc=0x91af9e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00a930000, 0x4866)
	pkg/sentry/kernel/task_run.go:94 +0x1bc fp=0xc002209fc0 sp=0xc002209f60 pc=0x919a1c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc002209fe0 sp=0xc002209fc0 pc=0x9248ca
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc002209fe8 sp=0xc002209fe0 pc=0x46c701
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0xef