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

goroutine 4132019 [running]:
panic({0x106d860, 0xc00ac24de0})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc006445380 sp=0xc0064452c0 pc=0x43781a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0xc002bff800?, 0x11bc000, 0x10b9e00)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc0064453a8 sp=0xc006445380 pc=0x40b17c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc0006f28c0, {0x144f858, 0xc00a202a80}, 0xc000cd2000, {0xc0082cae00?, 0xc00185b9a0?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x825 fp=0xc0064455d8 sp=0xc0064453a8 pc=0x7a0fe5
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc00046c580?, {0x144f858, 0xc00a202a80}, 0xc000376750?, 0xc005b22f00?, 0xc006445788)
	pkg/sentry/vfs/vfs.go:296 +0x18f fp=0xc006445658 sp=0xc0064455d8 pc=0x7494cf
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc00a202a80, 0xa202a80?, 0xc005bee380?, 0x432c8f88?, 0x0?, 0x400)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x359 fp=0xc006445848 sp=0xc006445658 pc=0xa478b9
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0xc00a202a80?, {{0x3}, {0x200000c0}, {0x4}, {0x20000140}, {0x400}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x32 fp=0xc006445888 sp=0xc006445848 pc=0xa47532
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00a202a80, 0x109, {{0x3}, {0x200000c0}, {0x4}, {0x20000140}, {0x400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x755 fp=0xc006445c78 sp=0xc006445888 pc=0x926ad5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00a202a80, 0xc00831fde8?, {{0x3}, {0x200000c0}, {0x4}, {0x20000140}, {0x400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x4a fp=0xc006445cd8 sp=0xc006445c78 pc=0x927d0a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x3b9aca00?, 0x0?, {{0x3}, {0x200000c0}, {0x4}, {0x20000140}, {0x400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x65 fp=0xc006445d38 sp=0xc006445cd8 pc=0x9279e5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc005fa61a0?)
	pkg/sentry/kernel/task_syscall.go:257 +0x2f0 fp=0xc006445e30 sp=0xc006445d38 pc=0x927750
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc009c71380?, 0xc00a202a80)
	pkg/sentry/kernel/task_run.go:259 +0xf3e fp=0xc006445f60 sp=0xc006445e30 pc=0x91b99e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00a202a80, 0xc0f4)
	pkg/sentry/kernel/task_run.go:94 +0x1bc fp=0xc006445fc0 sp=0xc006445f60 pc=0x91a41c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc006445fe0 sp=0xc006445fc0 pc=0x9252ca
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc006445fe8 sp=0xc006445fe0 pc=0x46c701
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0xef