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

goroutine 726177 [running]:
panic({0x115f780, 0xc00caab1a0})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc0008f3428 sp=0xc0008f3368 pc=0x43763a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0x77b831?, 0x12adec0, 0x11abd20)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc0008f3450 sp=0xc0008f3428 pc=0x40b17c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc0004f7c20, {0x15729f8, 0xc00cd26a80}, 0xc00043c480, {0xc00167f100?, 0xc007672400?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x9ea fp=0xc0008f3688 sp=0xc0008f3450 pc=0x7e922a
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc000174100?, {0x15729f8, 0xc00cd26a80}, 0xc00a98d7a0?, 0xc006220800?, 0xc0008f3840)
	pkg/sentry/vfs/vfs.go:296 +0x203 fp=0xc0008f3708 sp=0xc0008f3688 pc=0x77e2c3
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc00cd26a80, 0xcd26a80?, 0xc00a98db10?, 0xdfe06f8c?, 0xffffffffffffffff?, 0x0)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x3d5 fp=0xc0008f3900 sp=0xc0008f3708 pc=0xaf5575
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Link(0xc00cd26a80?, {{0x20000000}, {0x20000080}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:988 +0x4b fp=0xc0008f3940 sp=0xc0008f3900 pc=0xaf50cb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc00cd26a80, 0x56, {{0x20000000}, {0x20000080}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x80b fp=0xc0008f3c80 sp=0xc0008f3940 pc=0x9ab7ab
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc00cd26a80, 0x85?, {{0x20000000}, {0x20000080}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x54 fp=0xc0008f3ce0 sp=0xc0008f3c80 pc=0x9acd94
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0008f3d88?, 0x9639c6?, {{0x20000000}, {0x20000080}, {0x0}, {0x0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x85 fp=0xc0008f3d40 sp=0xc0008f3ce0 pc=0x9ac985
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc004207c70?)
	pkg/sentry/kernel/task_syscall.go:257 +0x3ac fp=0xc0008f3e38 sp=0xc0008f3d40 pc=0x9ac64c
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc00e420280?, 0xc00cd26a80)
	pkg/sentry/kernel/task_run.go:259 +0x12ff fp=0xc0008f3f60 sp=0xc0008f3e38 pc=0x99e2df
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc00cd26a80, 0x5f33)
	pkg/sentry/kernel/task_run.go:94 +0x21c fp=0xc0008f3fc0 sp=0xc0008f3f60 pc=0x99c93c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc0008f3fe0 sp=0xc0008f3fc0 pc=0x9a9c2a
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc0008f3fe8 sp=0xc0008f3fe0 pc=0x46c521
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x105