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

Matthew Garrett mjg59 at google.com
Fri Dec 15 22:35:56 UTC 2017


On Fri, Dec 15, 2017 at 2:24 PM, Matthew Garrett <mjg59 at google.com> wrote:
> Hm, sorry, missed this mail.
>
> On Tue, Nov 28, 2017 at 2:33 PM, Mimi Zohar <zohar at linux.vnet.ibm.com> wrote:
>> On Tue, 2017-11-28 at 13:37 -0800, Matthew Garrett wrote:
>>> security_task_getsecid(current) will give the same results as
>>> security_cred_getsecid(current_creds())
>>
>> Unwinding security_task_getsecid(current) looks like it is using
>> real_cred, while current_cred() is using cred.
>
> Good question, and there's a current_real_cred() macro, so I should
> just use that instead.

Hm. Actually, I'm not sure. For most checks we were using cred, and
only using real_cred for the secid lookup. This feels somewhat
inconsistent.
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