# Re: New skb extension for use by LSMs (skb "security blob")?

- From: David Miller \<davem@davemloft.net\>
- Date: 2019-08-22 21:18:47 
- List: netdev
- Page: https://ratatoskr.run/netdev/2019/08/11145682
- Thread: https://ratatoskr.run/netdev/2019/08/11145560/t.md

```text
From: Casey Schaufler <casey@schaufler-ca.com>
Date: Thu, 22 Aug 2019 13:35:01 -0700

> If the secmark where replaced by a security blob, the u32 secmark field
> in an sk_buff would be replaced by a void * security field.

You can already use the secmark to hash to some kind of pointer or other
object.
```