linux-kernel - Re: [PATCH 10/12] ima: Move validation of the keyrings conditional into ima_validate

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Date:   Thu, 25 Jun 2020 16:46:00 -0400
From:   Mimi Zohar <zohar@...ux.ibm.com>
To:     Tyler Hicks <tyhicks@...ux.microsoft.com>,
        Dmitry Kasatkin <dmitry.kasatkin@...il.com>
Cc:     James Morris <jmorris@...ei.org>,
        "Serge E . Hallyn" <serge@...lyn.com>,
        Lakshmi Ramasubramanian <nramas@...ux.microsoft.com>,
        Prakhar Srivastava <prsriva02@...il.com>,
        linux-kernel@...r.kernel.org, linux-integrity@...r.kernel.org,
        linux-security-module@...r.kernel.org
Subject: Re: [PATCH 10/12] ima: Move validation of the keyrings conditional
 into ima_validate_rule()


> > diff --git a/security/integrity/ima/ima_policy.c b/security/integrity/ima/ima_policy.c
> > index 514baf24d6a5..ae2ec2a9cdb9 100644
> > --- a/security/integrity/ima/ima_policy.c
> > +++ b/security/integrity/ima/ima_policy.c
> > @@ -999,6 +999,12 @@ static bool ima_validate_rule(struct ima_rule_entry *entry)
> >  		case KEXEC_KERNEL_CHECK:
> >  		case KEXEC_INITRAMFS_CHECK:
> >  		case POLICY_CHECK:
> > +			if (entry->flags & ~(IMA_FUNC | IMA_MASK | IMA_FSMAGIC |
> > +					     IMA_UID | IMA_FOWNER | IMA_FSUUID |
> > +					     IMA_INMASK | IMA_EUID | IMA_PCR |
> > +					     IMA_FSNAME))
> 
> I accidentally left these out:
> 
>  (IMA_DIGSIG_REQUIRED | IMA_PERMIT_DIRECTIO | IMA_MODSIG_ALLOWED | IMA_CHECK_BLACKLIST)
> 
> I'll add them in v2.

Thanks, I noticed when skimming the patches the first time around.

Mimi