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

goroutine 1151997 [running]:
panic({0x1161c40, 0xc001714450})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc001f29428 sp=0xc001f29368 pc=0x43763a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0x40?, 0x12b0420, 0x11ae1e0)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc001f29450 sp=0xc001f29428 pc=0x40b17c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc00058e1e0, {0x1574c38, 0xc009ff8a80}, 0xc002bce000, {0xc0006b5380?, 0xc003740800?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x9ea fp=0xc001f29688 sp=0xc001f29450 pc=0x7e986a
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc0004ce000?, {0x1574c38, 0xc009ff8a80}, 0xc006d72a20?, 0xc0011d8500?, 0xc001f29840)
	pkg/sentry/vfs/vfs.go:296 +0x203 fp=0xc001f29708 sp=0xc001f29688 pc=0x77e903
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc009ff8a80, 0xaf68b0?, 0xc009ff8a80?, 0xba1a5f8c?, 0x0?, 0x1400)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x3d5 fp=0xc001f29900 sp=0xc001f29708 pc=0xaf71f5
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0xc009ff8a80?, {{0x5}, {0x20000100}, {0x3}, {0x200000c0}, {0x1400}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x6e fp=0xc001f29940 sp=0xc001f29900 pc=0xaf6dee
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc009ff8a80, 0x109, {{0x5}, {0x20000100}, {0x3}, {0x200000c0}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc001f29c80 sp=0xc001f29940 pc=0x9ac7ab
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc009ff8a80, 0x85?, {{0x5}, {0x20000100}, {0x3}, {0x200000c0}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc001f29ce0 sp=0xc001f29c80 pc=0x9add94
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc001f29d88?, 0x9649c6?, {{0x5}, {0x20000100}, {0x3}, {0x200000c0}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc001f29d40 sp=0xc001f29ce0 pc=0x9ad985
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc003502dd0?)
	pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc001f29e38 sp=0xc001f29d40 pc=0x9ad64c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc002571c80?, 0xc009ff8a80)
	pkg/sentry/kernel/task_run.go:259 +0x12ff fp=0xc001f29f60 sp=0xc001f29e38 pc=0x99f2df
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc009ff8a80, 0x91f2)
	pkg/sentry/kernel/task_run.go:94 +0x21c fp=0xc001f29fc0 sp=0xc001f29f60 pc=0x99d93c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc001f29fe0 sp=0xc001f29fc0 pc=0x9aac2a
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc001f29fe8 sp=0xc001f29fe0 pc=0x46c521
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x105