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

goroutine 3174437 [running]:
panic({0x3221e0, 0xc00883f500})
	GOROOT/src/runtime/panic.go:987 +0x3bb fp=0xc000f12ea0 sp=0xc000f12de0 pc=0x123685b
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0xc000953388?, 0x47ac20, 0x36ff00)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc000f12ec8 sp=0xc000f12ea0 pc=0x120ac1c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc0003f8140, {0x80aa98, 0xc006799500}, 0xc00089b680, {0xc00057b600?, 0xc000bd6eb0?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0xa67 fp=0xc000f13128 sp=0xc000f12ec8 pc=0x1820cc7
gvisor.dev/gvisor/pkg/sentry/fsimpl/proc.(*filesystem).LinkAt(0xc0003f8140, {0x80aa98, 0xc006799500}, 0x1272a65?, {0xc00057b600?, 0xc000bd6eb0?})
	<autogenerated>:1 +0x8a fp=0xc000f13190 sp=0xc000f13128 pc=0x1dc68ea
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc006799da0?, {0x80aa98, 0xc006799500}, 0xc000953320?, 0xc00564d300?, 0xc000f13408)
	pkg/sentry/vfs/vfs.go:296 +0x31d fp=0xc000f13240 sp=0xc000f13190 pc=0x178585d
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc006799500, 0x1272a65?, 0x1449172?, 0x1272a37?, 0x101aa6fb8?, 0x0)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x38c fp=0xc000f134b8 sp=0xc000f13240 pc=0x1c9314c
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0xc00849b500?, {{0x6}, {0x20000380}, {0x3}, {0x200003c0}, {0x0}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x48 fp=0xc000f13510 sp=0xc000f134b8 pc=0x1c92d68
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc006799500, 0x109, {{0x6}, {0x20000380}, {0x3}, {0x200003c0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x9b9 fp=0xc000f139f0 sp=0xc000f13510 pc=0x1aa78d9
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc006799500, 0x0?, {{0x6}, {0x20000380}, {0x3}, {0x200003c0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x7d fp=0xc000f13a88 sp=0xc000f139f0 pc=0x1aa96bd
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0xc0070fe5b0?, 0xc003e023c0?, {{0x6}, {0x20000380}, {0x3}, {0x200003c0}, {0x0}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x8f fp=0xc000f13b00 sp=0xc000f13a88 pc=0x1aa906f
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc006799500)
	pkg/sentry/kernel/task_syscall.go:257 +0x4c5 fp=0xc000f13c28 sp=0xc000f13b00 pc=0x1aa8c05
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc006799500?, 0xc006799500)
	pkg/sentry/kernel/task_run.go:259 +0x1b4b fp=0xc000f13ec8 sp=0xc000f13c28 pc=0x1a936ab
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc006799500, 0xb190)
	pkg/sentry/kernel/task_run.go:94 +0x36b fp=0xc000f13fb0 sp=0xc000f13ec8 pc=0x1a911cb
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x48 fp=0xc000f13fe0 sp=0xc000f13fb0 pc=0x1aa53e8
runtime.goexit()
	src/runtime/asm_amd64.s:1598 +0x1 fp=0xc000f13fe8 sp=0xc000f13fe0 pc=0x126f701
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0x1ad