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

goroutine 2038711 [running]:
panic({0x106d860, 0xc0073b11d0})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc0023f1380 sp=0xc0023f12c0 pc=0x43781a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0xc000f51200?, 0x11bc000, 0x10b9e00)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc0023f13a8 sp=0xc0023f1380 pc=0x40b17c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc00049c320, {0x144f838, 0xc008525500}, 0xc0009de480, {0xc000225800?, 0xc002b0bae0?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x825 fp=0xc0023f15d8 sp=0xc0023f13a8 pc=0x7a0fe5
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc000308100?, {0x144f838, 0xc008525500}, 0xc003100360?, 0xc00529a800?, 0xc0023f1788)
	pkg/sentry/vfs/vfs.go:296 +0x18f fp=0xc0023f1658 sp=0xc0023f15d8 pc=0x7494cf
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc008525500, 0x0?, 0x0?, 0x96f14f88?, 0x0?, 0x1400)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x359 fp=0xc0023f1848 sp=0xc0023f1658 pc=0xa478b9
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0xc008525500?, {{0x4}, {0x20000040}, {0x6}, {0x200000c0}, {0x1400}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x32 fp=0xc0023f1888 sp=0xc0023f1848 pc=0xa47532
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc008525500, 0x109, {{0x4}, {0x20000040}, {0x6}, {0x200000c0}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x755 fp=0xc0023f1c78 sp=0xc0023f1888 pc=0x926ad5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc008525500, 0xc009e95668?, {{0x4}, {0x20000040}, {0x6}, {0x200000c0}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x4a fp=0xc0023f1cd8 sp=0xc0023f1c78 pc=0x927d0a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x0?, 0xc0003b95e0?, {{0x4}, {0x20000040}, {0x6}, {0x200000c0}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x65 fp=0xc0023f1d38 sp=0xc0023f1cd8 pc=0x9279e5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc004d18340?)
	pkg/sentry/kernel/task_syscall.go:257 +0x2f0 fp=0xc0023f1e30 sp=0xc0023f1d38 pc=0x927750
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc000709280?, 0xc008525500)
	pkg/sentry/kernel/task_run.go:259 +0xf3e fp=0xc0023f1f60 sp=0xc0023f1e30 pc=0x91b99e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc008525500, 0x23bf)
	pkg/sentry/kernel/task_run.go:94 +0x1bc fp=0xc0023f1fc0 sp=0xc0023f1f60 pc=0x91a41c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc0023f1fe0 sp=0xc0023f1fc0 pc=0x9252ca
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc0023f1fe8 sp=0xc0023f1fe0 pc=0x46c701
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0xef