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

goroutine 4720663 [running]:
panic({0xb6aa40, 0x4006b750b0})
	GOROOT/src/runtime/panic.go:987 +0x3d8 fp=0x400f9c9340 sp=0x400f9c9280 pc=0x46bb8
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0x400013e280?, 0xcb7ec0, 0xbb6a00)
	GOROOT/src/runtime/iface.go:272 +0x74 fp=0x400f9c9370 sp=0x400f9c9340 pc=0x1a174
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0x400020c000, {0xf65ef8, 0x400e496a80}, 0x4006c7ed80, {0x40004b9980?, 0x400e641000?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x604 fp=0x400f9c95a0 sp=0x400f9c9370 pc=0x37fd04
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0x400e496a80?, {0xf65ef8, 0x400e496a80}, 0x3af5bc?, 0x400f9c96f8?, 0x400f9c9708)
	pkg/sentry/vfs/vfs.go:296 +0x168 fp=0x400f9c9620 sp=0x400f9c95a0 pc=0x32b638
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0x400e496a80, 0x4de208?, 0x400e496a80?, 0x386662d8?, 0x400f9c9848?, 0x1000)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x278 fp=0x400f9c9810 sp=0x400f9c9620 pc=0x5dfd38
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0x400e496a80?, {{0xffffffffffffff9c}, {0x20000580}, {0x3}, {0x200005c0}, {0x1000}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x30 fp=0x400f9c9850 sp=0x400f9c9810 pc=0x5dfa90
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0x400e496a80, 0x25, {{0xffffffffffffff9c}, {0x20000580}, {0x3}, {0x200005c0}, {0x1000}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x578 fp=0x400f9c9c40 sp=0x400f9c9850 pc=0x4de208
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0x400e496a80, 0x0?, {{0xffffffffffffff9c}, {0x20000580}, {0x3}, {0x200005c0}, {0x1000}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x40 fp=0x400f9c9ca0 sp=0x400f9c9c40 pc=0x4df120
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x17d7842?, 0x5ee59a0?, {{0xffffffffffffff9c}, {0x20000580}, {0x3}, {0x200005c0}, {0x1000}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x5c fp=0x400f9c9d00 sp=0x400f9c9ca0 pc=0x4dee2c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0x400bb46ea0?)
	pkg/sentry/kernel/task_syscall.go:257 +0x298 fp=0x400f9c9e00 sp=0x400f9c9d00 pc=0x4debd8
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0x40019c4680?, 0x400e496a80)
	pkg/sentry/kernel/task_run.go:259 +0xd10 fp=0x400f9c9f40 sp=0x400f9c9e00 pc=0x4d41c0
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0x400e496a80, 0x1b3b)
	pkg/sentry/kernel/task_run.go:94 +0x1a8 fp=0x400f9c9fb0 sp=0x400f9c9f40 pc=0x4d2ed8
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2c fp=0x400f9c9fd0 sp=0x400f9c9fb0 pc=0x4dccbc
runtime.goexit()
	src/runtime/asm_arm64.s:1172 +0x4 fp=0x400f9c9fd0 sp=0x400f9c9fd0 pc=0x7b5a4
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0xe8