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

goroutine 170 [running]:
panic({0x106b6c0, 0xc0004442d0})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc000b33380 sp=0xc000b332c0 pc=0x43781a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0x100000000?, 0x11b9ce0, 0x10b7be0)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc000b333a8 sp=0xc000b33380 pc=0x40b17c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc00031e140, {0x144d138, 0xc000d32000}, 0xc000d0e900, {0xc000623400?, 0xc00068e800?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x825 fp=0xc000b335d8 sp=0xc000b333a8 pc=0x7a09a5
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc000622100?, {0x144d138, 0xc000d32000}, 0xc0006a2120?, 0xc000626400?, 0xc000b33788)
	pkg/sentry/vfs/vfs.go:296 +0x18f fp=0xc000b33658 sp=0xc000b335d8 pc=0x748e8f
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc000d32000, 0xa43a9b?, 0xc000d32000?, 0x144d138?, 0xc000d32000?, 0x0)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x359 fp=0xc000b33848 sp=0xc000b33658 pc=0xa46d59
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0xc000d32000?, {{0xffffff9c}, {0x20000000}, {0x3}, {0x20000040}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x32 fp=0xc000b33888 sp=0xc000b33848 pc=0xa469d2
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000d32000, 0x109, {{0xffffff9c}, {0x20000000}, {0x3}, {0x20000040}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x755 fp=0xc000b33c78 sp=0xc000b33888 pc=0x9260d5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000d32000, 0x0?, {{0xffffff9c}, {0x20000000}, {0x3}, {0x20000040}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x4a fp=0xc000b33cd8 sp=0xc000b33c78 pc=0x92730a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc000157b00?, 0xc000b33e20?, {{0xffffff9c}, {0x20000000}, {0x3}, {0x20000040}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x65 fp=0xc000b33d38 sp=0xc000b33cd8 pc=0x926fe5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc0004fc210?)
	pkg/sentry/kernel/task_syscall.go:257 +0x2f0 fp=0xc000b33e30 sp=0xc000b33d38 pc=0x926d50
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000b10080?, 0xc000d32000)
	pkg/sentry/kernel/task_run.go:259 +0xf3e fp=0xc000b33f60 sp=0xc000b33e30 pc=0x91af9e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000d32000, 0x19)
	pkg/sentry/kernel/task_run.go:94 +0x1bc fp=0xc000b33fc0 sp=0xc000b33f60 pc=0x919a1c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc000b33fe0 sp=0xc000b33fc0 pc=0x9248ca
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc000b33fe8 sp=0xc000b33fe0 pc=0x46c701
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0xef