Re: [PATCH V4 2/3] IMA: Use consistent creds

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On Wed, Jan 3, 2018 at 12:08 PM, Casey Schaufler <casey@xxxxxxxxxxxxxxxx> wrote:
> On 1/3/2018 11:44 AM, Matthew Garrett wrote:
>> If we want to be able to do something conditional on the LSM context
>> that a process is going to be executed under, *before* commit_creds()
>> is called, is there an existing way to do so? I can rework this so we
>> use the task secid for all running processes and the cred secid for
>> the not-yet-running child process, but I don't know if that's
>> sufficient to avoid problems in future.
>
> It's possible that converting all the existing calls of
> security_task_getsecid() to security_cred_getsecid() is the
> safe approach. No one is using the task blob today, and this
> would disambiguate the situation.

Ok. Should we be looking at creds or real_creds?




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