[PATCH V3 2/2] IMA: Support using new creds in appraisal policy

[James Morris]

On Thu, 26 Oct 2017, Matthew Garrett wrote:

> The existing BPRM_CHECK functionality in IMA validates against the
> credentials of the existing process, not any new credentials that the
> child process may transition to. Add an additional CREDS_CHECK target
> and refactor IMA to pass the appropriate creds structure. In
> ima_bprm_check(), check with both the existing process credentials and
> the credentials that will be committed when the new process is started.
> This will not change behaviour unless the system policy is extended to
> include CREDS_CHECK targets - BPRM_CHECK will continue to check the same
> credentials that it did previously.
> 
> Signed-off-by: Matthew Garrett <mjg59 at google.com>


Reviewed-by: James Morris <james.l.morris at oracle.com>


-- 
James Morris
<james.l.morris at oracle.com>

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