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

goroutine 2555864 [running]:
panic({0x31f420, 0xc002df9bf0})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc0016cce90 sp=0xc0016ccdd0 pc=0x124c67a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0xc0009bfe38?, 0x474240, 0x36c7a0)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc0016cceb8 sp=0xc0016cce90 pc=0x121fb5c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc0002d2500, {0x835a98, 0xc004292000}, 0xc0003de900, {0xc0004cf880?, 0xc000d39f90?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0xa4e fp=0xc0016cd118 sp=0xc0016cceb8 pc=0x182adce
gvisor.dev/gvisor/pkg/sentry/fsimpl/sys.(*filesystem).LinkAt(0xc0002d2500, {0x835a98, 0xc004292000}, 0x1286685?, {0xc0004cf880?, 0xc000d39f90?})
	<autogenerated>:1 +0x8a fp=0xc0016cd180 sp=0xc0016cd118 pc=0x210c4ea
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc0042928a0?, {0x835a98, 0xc004292000}, 0xc0009bfdd0?, 0xc007025900?, 0xc0016cd3f8)
	pkg/sentry/vfs/vfs.go:296 +0x31d fp=0xc0016cd230 sp=0xc0016cd180 pc=0x178fb3d
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc004292000, 0x1286685?, 0x1446b72?, 0x1286657?, 0x101aacd38?, 0x0)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x38c fp=0xc0016cd4a8 sp=0xc0016cd230 pc=0x1c9538c
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0xc004292000?, {{0xffffffffffffff9c}, {0x20000240}, {0x4}, {0x20000280}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x48 fp=0xc0016cd500 sp=0xc0016cd4a8 pc=0x1c94fa8
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc004292000, 0x109, {{0xffffffffffffff9c}, {0x20000240}, {0x4}, {0x20000280}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x9b9 fp=0xc0016cd9e0 sp=0xc0016cd500 pc=0x1aad659
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc004292000, 0x0?, {{0xffffffffffffff9c}, {0x20000240}, {0x4}, {0x20000280}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x7d fp=0xc0016cda78 sp=0xc0016cd9e0 pc=0x1aaf43d
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc007139930?, 0xc00762c1e0?, {{0xffffffffffffff9c}, {0x20000240}, {0x4}, {0x20000280}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x8f fp=0xc0016cdaf0 sp=0xc0016cda78 pc=0x1aaedef
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc004292000)
	pkg/sentry/kernel/task_syscall.go:257 +0x4c5 fp=0xc0016cdc18 sp=0xc0016cdaf0 pc=0x1aae985
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc004292000?, 0xc004292000)
	pkg/sentry/kernel/task_run.go:259 +0x1b76 fp=0xc0016cdec8 sp=0xc0016cdc18 pc=0x1a99456
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc004292000, 0x9fa7)
	pkg/sentry/kernel/task_run.go:94 +0x37b fp=0xc0016cdfb0 sp=0xc0016cdec8 pc=0x1a96f3b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x48 fp=0xc0016cdfe0 sp=0xc0016cdfb0 pc=0x1aab148
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc0016cdfe8 sp=0xc0016cdfe0 pc=0x1283701
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x1ad