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

goroutine 2850707 [running]:
panic({0x106d860, 0xc00421cf00})
	GOROOT/src/runtime/panic.go:987 +0x3ba fp=0xc00482b380 sp=0xc00482b2c0 pc=0x43781a
runtime.panicdottypeE(...)
	GOROOT/src/runtime/iface.go:262
runtime.panicdottypeI(0xc00193f200?, 0x11bc000, 0x10b9e00)
	GOROOT/src/runtime/iface.go:272 +0x7c fp=0xc00482b3a8 sp=0xc00482b380 pc=0x40b17c
gvisor.dev/gvisor/pkg/sentry/fsimpl/kernfs.(*Filesystem).LinkAt(0xc0001d6be0, {0x144f858, 0xc006aa8a80}, 0xc002b8e480, {0xc0004cba80?, 0xc0047cf720?})
	pkg/sentry/fsimpl/kernfs/filesystem.go:367 +0x825 fp=0xc00482b5d8 sp=0xc00482b3a8 pc=0x7a0fe5
gvisor.dev/gvisor/pkg/sentry/vfs.(*VirtualFilesystem).LinkAt(0xc0002da100?, {0x144f858, 0xc006aa8a80}, 0xc00085acf0?, 0xc007a5ef00?, 0xc00482b788)
	pkg/sentry/vfs/vfs.go:296 +0x18f fp=0xc00482b658 sp=0xc00482b5d8 pc=0x7494cf
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.linkat(0xc006aa8a80, 0x1?, 0x20000700?, 0xf9c3cf8c?, 0xffffffffffffffff?, 0x1400)
	pkg/sentry/syscalls/linux/sys_file.go:1029 +0x359 fp=0xc00482b848 sp=0xc00482b658 pc=0xa478b9
gvisor.dev/gvisor/pkg/sentry/syscalls/linux.Linkat(0xc006aa8a80?, {{0xffffffffffffff9c}, {0x20000740}, {0x7}, {0x20000780}, {0x1400}, {0x0}})
	pkg/sentry/syscalls/linux/sys_file.go:998 +0x32 fp=0xc00482b888 sp=0xc00482b848 pc=0xa47532
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).executeSyscall(0xc006aa8a80, 0x109, {{0xffffffffffffff9c}, {0x20000740}, {0x7}, {0x20000780}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:142 +0x755 fp=0xc00482bc78 sp=0xc00482b888 pc=0x926ad5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallInvoke(0xc006aa8a80, 0xc008684df8?, {{0xffffffffffffff9c}, {0x20000740}, {0x7}, {0x20000780}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:322 +0x4a fp=0xc00482bcd8 sp=0xc00482bc78 pc=0x927d0a
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscallEnter(0x2?, 0x0?, {{0xffffffffffffff9c}, {0x20000740}, {0x7}, {0x20000780}, {0x1400}, {0x0}})
	pkg/sentry/kernel/task_syscall.go:282 +0x65 fp=0xc00482bd38 sp=0xc00482bcd8 pc=0x9279e5
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).doSyscall(0xc008d855f0?)
	pkg/sentry/kernel/task_syscall.go:257 +0x2f0 fp=0xc00482be30 sp=0xc00482bd38 pc=0x927750
gvisor.dev/gvisor/pkg/sentry/kernel.(*runApp).execute(0xc001d46700?, 0xc006aa8a80)
	pkg/sentry/kernel/task_run.go:259 +0xf3e fp=0xc00482bf60 sp=0xc00482be30 pc=0x91b99e
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).run(0xc006aa8a80, 0xfd)
	pkg/sentry/kernel/task_run.go:94 +0x1bc fp=0xc00482bfc0 sp=0xc00482bf60 pc=0x91a41c
gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start.func1()
	pkg/sentry/kernel/task_start.go:377 +0x2a fp=0xc00482bfe0 sp=0xc00482bfc0 pc=0x9252ca
runtime.goexit()
	src/runtime/asm_amd64.s:1594 +0x1 fp=0xc00482bfe8 sp=0xc00482bfe0 pc=0x46c701
created by gvisor.dev/gvisor/pkg/sentry/kernel.(*Task).Start
	pkg/sentry/kernel/task_start.go:377 +0xef