Re: [PATCH 2/2] keys, trusted: seal with a policy

[James Morris]

On Wed, 18 Nov 2015, Jarkko Sakkinen wrote:

> On Wed, Nov 18, 2015 at 11:21:01AM +1100, James Morris wrote:
> > On Tue, 17 Nov 2015, Jarkko Sakkinen wrote:
> > 
> > >  			}
> > >  			break;
> > > +		case Opt_policydigest:
> > > +			if (!tpm2 ||
> > > +			    strlen(args[0].from) != (2 * opt->digest_len))
> > > +				return -EINVAL;
> > > +			kfree(opt->policydigest);
> > > +			opt->policydigest = kzalloc(opt->digest_len,
> > > +						    GFP_KERNEL);
> > 
> > Is it correct to kfree opt->policydigest here before allocating it?
> 
> I think so. The same option might be encountered multiple times.

This would surely signify an error?


-- 
James Morris
<jmorris@xxxxxxxxx>

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