Thread (44 messages) 44 messages, 13 authors, 2011-03-26

Re: [PATCH] don't allow CAP_NET_ADMIN to load non-netdev kernel modules

From: David Miller <davem@davemloft.net>
Date: 2011-02-25 18:46:46
Also in: lkml

From: Vasiliy Kulikov <redacted>
Date: Fri, 25 Feb 2011 18:14:14 +0300
Since a8f80e8ff94ecba629542d9b4b5f5a8ee3eb565c any process with
CAP_NET_ADMIN may load any module from /lib/modules/.  This doesn't mean
that CAP_NET_ADMIN is a superset of CAP_SYS_MODULE as modules are limited
to /lib/modules/**.  However, CAP_NET_ADMIN capability shouldn't allow
anybody load any module not related to networking.
Why go through this naming change, which does break things, instead of
simply adding a capability mask tag or similar to modules somehow.  You
could stick it into a special elf section or similar.

Doesn't that make tons more sense than this?
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