# Re: \[PATCH 18/27\] bpf: Restrict kernel image access functions when the kernel is locked down

- From: David Howells \<dhowells@redhat.com\>
- Date: 2017-10-20 08:08:57 
- List: netdev
- Page: https://ratatoskr.run/netdev/2017/10/5114659
- Thread: https://ratatoskr.run/linux-security-module/2017/10/5113946/t.md

```text
Hi Joey,

Should I just lock down sys_bpf() entirely for now?  We can always free it up
somewhat later.

David
```