Re: [PATCH v3 2/2] IMA: Add audit log for failure conditions

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On Wed, Jun 24, 2020 at 1:25 PM Lakshmi Ramasubramanian
<nramas@xxxxxxxxxxxxxxxxxxx> wrote:
>
> On 6/23/20 12:58 PM, Mimi Zohar wrote:
>
> Hi Steve\Paul,
>
> >> Sample audit messages:
> >>
> >> [    6.303048] audit: type=1804 audit(1592506281.627:2): pid=1 uid=0
> >> auid=4294967295 ses=4294967295 subj=kernel op=measuring_key
> >> cause=ENOMEM comm="swapper/0" name=".builtin_trusted_keys" res=0
> >> errno=-12
> >
> > My only concern is that auditing -ENOMEM will put additional memory
> > pressure on the system.  I'm not sure if this is a concern and, if so,
> > how it should be handled.
>
> Do you have any concerns with respect to adding audit messages in low
> memory conditions?

Assuming the system is not completely toast, the allocation failure
could be a very transient issue; I wouldn't worry too much about it.

-- 
paul moore
www.paul-moore.com



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