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

goroutine 310519 [running]:
panic({0x115e700, 0xc00a01b170})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc001f87428 sp=0xc001f87368 pc=0x43763a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0x44bcea0?, 0x12acd20, 0x11aac20)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc001f87450 sp=0xc001f87428 pc=0x40b17c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc001397560, {0x15712d8, 0xc007239500}, 0xc005bc0000, {0xc0001b1c80?, 0xc001315450?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x9ea fp=0xc001f87688 sp=0xc001f87450 pc=0x7e922a
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc0001b0800?, {0x15712d8, 0xc007239500}, 0xc0045b0400?, 0xc0009c9c00?, 0xc001f87840)
	pkg/sentry/vfs/vfs.go:296 +0x203 fp=0xc001f87708 sp=0xc001f87688 pc=0x77e2c3
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc007239500, 0xaf4346?, 0xc007239500?, 0xb2a3b128?, 0x0?, 0x0)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x3d5 fp=0xc001f87900 sp=0xc001f87708 pc=0xaf5575
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Link(0xc007239500?, {{0x20000140}, {0x20000240}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:988 +0x4b fp=0xc001f87940 sp=0xc001f87900 pc=0xaf50cb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc007239500, 0x56, {{0x20000140}, {0x20000240}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc001f87c80 sp=0xc001f87940 pc=0x9ab7ab
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc007239500, 0x0?, {{0x20000140}, {0x20000240}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc001f87ce0 sp=0xc001f87c80 pc=0x9acd94
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000432310?, 0xc001f87e28?, {{0x20000140}, {0x20000240}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc001f87d40 sp=0xc001f87ce0 pc=0x9ac985
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc007c63760?)
	pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc001f87e38 sp=0xc001f87d40 pc=0x9ac64c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc004273900?, 0xc007239500)
	pkg/sentry/kernel/task_run.go:259 +0x12ff fp=0xc001f87f60 sp=0xc001f87e38 pc=0x99e2df
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc007239500, 0x1346)
	pkg/sentry/kernel/task_run.go:94 +0x21c fp=0xc001f87fc0 sp=0xc001f87f60 pc=0x99c93c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc001f87fe0 sp=0xc001f87fc0 pc=0x9a9c2a
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc001f87fe8 sp=0xc001f87fe0 pc=0x46c521
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x105