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

goroutine 46 [running]:
panic({0x106b6c0, 0xc0006c4420})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc0007af380 sp=0xc0007af2c0 pc=0x43781a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0x10090e2c5?, 0x11b9ce0, 0x10b7be0)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc0007af3a8 sp=0xc0007af380 pc=0x40b17c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc0003000a0, {0x144d138, 0xc00084ca80}, 0xc00052a480, {0xc000399400?, 0xc000380c00?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x825 fp=0xc0007af5d8 sp=0xc0007af3a8 pc=0x7a09a5
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc000398100?, {0x144d138, 0xc00084ca80}, 0xc0001ee5a0?, 0xc00067a500?, 0xc0007af788)
	pkg/sentry/vfs/vfs.go:296 +0x18f fp=0xc0007af658 sp=0xc0007af5d8 pc=0x748e8f
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc00084ca80, 0x84ca80?, 0xc00084ca80?, 0x50259548?, 0x0?, 0x0)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x359 fp=0xc0007af848 sp=0xc0007af658 pc=0xa46d59
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0x1dfe2d8?, {{0xffffff9c}, {0x200000c0}, {0x3}, {0x20000080}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x32 fp=0xc0007af888 sp=0xc0007af848 pc=0xa469d2
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00084ca80, 0x109, {{0xffffff9c}, {0x200000c0}, {0x3}, {0x20000080}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x755 fp=0xc0007afc78 sp=0xc0007af888 pc=0x9260d5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00084ca80, 0x0?, {{0xffffff9c}, {0x200000c0}, {0x3}, {0x20000080}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x4a fp=0xc0007afcd8 sp=0xc0007afc78 pc=0x92730a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0002066c0?, 0xc0007afe20?, {{0xffffff9c}, {0x200000c0}, {0x3}, {0x20000080}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x65 fp=0xc0007afd38 sp=0xc0007afcd8 pc=0x926fe5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0006c6160?)
	pkg/sentry/kernel/task_syscall.go:257 +0x2f0 fp=0xc0007afe30 sp=0xc0007afd38 pc=0x926d50
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc0000e6080?, 0xc00084ca80)
	pkg/sentry/kernel/task_run.go:259 +0xf3e fp=0xc0007aff60 sp=0xc0007afe30 pc=0x91af9e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00084ca80, 0x1b)
	pkg/sentry/kernel/task_run.go:94 +0x1bc fp=0xc0007affc0 sp=0xc0007aff60 pc=0x919a1c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc0007affe0 sp=0xc0007affc0 pc=0x9248ca
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc0007affe8 sp=0xc0007affe0 pc=0x46c701
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0xef