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

goroutine 1059101 [running]:
panic({0x1161fc0, 0xc00bfdef30})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc005f2f428 sp=0xc005f2f368 pc=0x43763a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0x77bf51?, 0x12b0a20, 0x11ae600)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc005f2f450 sp=0xc005f2f428 pc=0x40b17c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc0006a0000, {0x1575998, 0xc00d921500}, 0xc0006a8000, {0xc00570f080?, 0xc002aba800?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x9ea fp=0xc005f2f688 sp=0xc005f2f450 pc=0x7e994a
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc000406580?, {0x1575998, 0xc00d921500}, 0xc004ccf170?, 0xc0033d6200?, 0xc005f2f840)
	pkg/sentry/vfs/vfs.go:296 +0x203 fp=0xc005f2f708 sp=0xc005f2f688 pc=0x77e9e3
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc00d921500, 0xaef4df?, 0xc00d921500?, 0xed087f8c?, 0x0?, 0x0)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x3d5 fp=0xc005f2f900 sp=0xc005f2f708 pc=0xaf76d5
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Link(0xc00d921500?, {{0x20000000}, {0x20000080}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:988 +0x4b fp=0xc005f2f940 sp=0xc005f2f900 pc=0xaf722b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00d921500, 0x56, {{0x20000000}, {0x20000080}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc005f2fc80 sp=0xc005f2f940 pc=0x9ac88b
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00d921500, 0x85?, {{0x20000000}, {0x20000080}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc005f2fce0 sp=0xc005f2fc80 pc=0x9ade74
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc005f2fd88?, 0x964aa6?, {{0x20000000}, {0x20000080}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc005f2fd40 sp=0xc005f2fce0 pc=0x9ada65
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc00628d520?)
	pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc005f2fe38 sp=0xc005f2fd40 pc=0x9ad72c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc00566c300?, 0xc00d921500)
	pkg/sentry/kernel/task_run.go:259 +0x12ff fp=0xc005f2ff60 sp=0xc005f2fe38 pc=0x99f3bf
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00d921500, 0x8c05)
	pkg/sentry/kernel/task_run.go:94 +0x21c fp=0xc005f2ffc0 sp=0xc005f2ff60 pc=0x99da1c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc005f2ffe0 sp=0xc005f2ffc0 pc=0x9aad0a
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc005f2ffe8 sp=0xc005f2ffe0 pc=0x46c521
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x105