Messages in this thread Patch in this message | | | Subject | Re: [PATCH v5 06/12] evm: Ignore INTEGRITY_NOLABEL/INTEGRITY_NOXATTRS if conditions are safe | From | Mimi Zohar <> | Date | Mon, 03 May 2021 10:34:30 -0400 |
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On Mon, 2021-05-03 at 14:15 +0000, Roberto Sassu wrote:
> > > > if (evm_status != INTEGRITY_PASS) > > > > integrity_audit_msg(AUDIT_INTEGRITY_METADATA, > > > d_backing_inode(dentry), > > > > dentry->d_name.name, > > > "appraise_metadata", > > > > @@ -515,7 +535,8 @@ int evm_inode_setattr(struct dentry *dentry, > > struct > > > iattr *attr) > > > > return 0; > > > > evm_status = evm_verify_current_integrity(dentry); > > > > if ((evm_status == INTEGRITY_PASS) || > > > > - (evm_status == INTEGRITY_NOXATTRS)) > > > > + (evm_status == INTEGRITY_NOXATTRS) || > > > > + (evm_ignore_error_safe(evm_status))) > > > > > > It would also remove the INTEGRITY_NOXATTRS test duplication here. > > > > Ok. > > Actually, it does not seem a duplication. Currently, INTEGRITY_NOXATTRS > is ignored also when the HMAC key is loaded.
The existing INTEGRITY_NOXATTRS exemption is more general and includes the new case of when EVM HMAC is disabled. The additional exemption is only needed for INTEGRITY_NOLABEL, when EVM HMAC is disabled.
Mimi
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