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

goroutine 870463 [running]:
panic({0x11608a0, 0xc009501f50})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc007a9f428 sp=0xc007a9f368 pc=0x43763a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0x40?, 0x12af040, 0x11ace40)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc007a9f450 sp=0xc007a9f428 pc=0x40b17c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc00049c1e0, {0x15737b8, 0xc0087f8a80}, 0xc001f5e480, {0xc0005ca180?, 0xc000e24000?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x9ea fp=0xc007a9f688 sp=0xc007a9f450 pc=0x7e986a
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc0005ca180?, {0x15737b8, 0xc0087f8a80}, 0xc0062d4a20?, 0xc005fb1f00?, 0xc007a9f840)
	pkg/sentry/vfs/vfs.go:296 +0x203 fp=0xc007a9f708 sp=0xc007a9f688 pc=0x77e903
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc0087f8a80, 0x1?, 0x0?, 0x8895ef88?, 0x0?, 0x1400)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x3d5 fp=0xc007a9f900 sp=0xc007a9f708 pc=0xaf5f35
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0xc0087f8a80?, {{0x7}, {0x20000100}, {0x3}, {0x200000c0}, {0x1400}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x6e fp=0xc007a9f940 sp=0xc007a9f900 pc=0xaf5b2e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc0087f8a80, 0x109, {{0x7}, {0x20000100}, {0x3}, {0x200000c0}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc007a9fc80 sp=0xc007a9f940 pc=0x9ac00b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc0087f8a80, 0x0?, {{0x7}, {0x20000100}, {0x3}, {0x200000c0}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc007a9fce0 sp=0xc007a9fc80 pc=0x9ad5f4
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0003c6310?, 0xc007a9fe28?, {{0x7}, {0x20000100}, {0x3}, {0x200000c0}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc007a9fd40 sp=0xc007a9fce0 pc=0x9ad1e5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00547f290?)
	pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc007a9fe38 sp=0xc007a9fd40 pc=0x9aceac
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc008f18580?, 0xc0087f8a80)
	pkg/sentry/kernel/task_run.go:259 +0x12ff fp=0xc007a9ff60 sp=0xc007a9fe38 pc=0x99eb3f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc0087f8a80, 0x5c81)
	pkg/sentry/kernel/task_run.go:94 +0x21c fp=0xc007a9ffc0 sp=0xc007a9ff60 pc=0x99d19c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc007a9ffe0 sp=0xc007a9ffc0 pc=0x9aa48a
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc007a9ffe8 sp=0xc007a9ffe0 pc=0x46c521
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x105