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

goroutine 291 [running]:
panic({0x106b6c0, 0xc0007b0030})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc000859380 sp=0xc0008592c0 pc=0x43781a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0x10065e1e8?, 0x11b9ce0, 0x10b7be0)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc0008593a8 sp=0xc000859380 pc=0x40b17c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc0001d6be0, {0x144d138, 0xc000940000}, 0xc0003ea900, {0xc0005cd500?, 0xc00001e460?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x825 fp=0xc0008595d8 sp=0xc0008593a8 pc=0x7a09a5
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc0004bc100?, {0x144d138, 0xc000940000}, 0xc000412480?, 0xc00082a400?, 0xc000859788)
	pkg/sentry/vfs/vfs.go:296 +0x18f fp=0xc000859658 sp=0xc0008595d8 pc=0x748e8f
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc000940000, 0x940000?, 0x0?, 0x0?, 0x0?, 0x1000)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x359 fp=0xc000859848 sp=0xc000859658 pc=0xa46d59
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0xc0007009c0?, {{0x3}, {0x20000040}, {0x4}, {0x20000080}, {0x1000}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x32 fp=0xc000859888 sp=0xc000859848 pc=0xa469d2
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc000940000, 0x109, {{0x3}, {0x20000040}, {0x4}, {0x20000080}, {0x1000}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x755 fp=0xc000859c78 sp=0xc000859888 pc=0x9260d5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc000940000, 0xc0009260d8?, {{0x3}, {0x20000040}, {0x4}, {0x20000080}, {0x1000}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x4a fp=0xc000859cd8 sp=0xc000859c78 pc=0x92730a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x0?, 0x0?, {{0x3}, {0x20000040}, {0x4}, {0x20000080}, {0x1000}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x65 fp=0xc000859d38 sp=0xc000859cd8 pc=0x926fe5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc000479380?)
	pkg/sentry/kernel/task_syscall.go:257 +0x2f0 fp=0xc000859e30 sp=0xc000859d38 pc=0x926d50
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc00047a200?, 0xc000940000)
	pkg/sentry/kernel/task_run.go:259 +0xf3e fp=0xc000859f60 sp=0xc000859e30 pc=0x91af9e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc000940000, 0xd)
	pkg/sentry/kernel/task_run.go:94 +0x1bc fp=0xc000859fc0 sp=0xc000859f60 pc=0x919a1c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc000859fe0 sp=0xc000859fc0 pc=0x9248ca
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc000859fe8 sp=0xc000859fe0 pc=0x46c701
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0xef