Re: Why Ext2/3 needs immutable attribute?

[Bernd Eckenfels]

On Sun, Apr 17, 2005 at 07:48:50PM -0400, Xin Zhao wrote:
> any kernel level protection, including
> SELinux, could be disabled after the kernel is compromised. Am I
> missing some points here?

No, Immutable bit is an application of capabilities (or securelevel), you
are right.

If the kernel is compromised, the kernel is compromised. However immutable
bit can make it hard to circumvent kernel's protetion, even for root
attackers

Gruss
Bernd
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