linux-kernel - Re: [PATCH 11/28] evm: Complete description of evm_inode

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Date:   Tue, 07 Mar 2023 09:58:14 +0100
From:   Roberto Sassu <roberto.sassu@...weicloud.com>
To:     Stefan Berger <stefanb@...ux.ibm.com>, viro@...iv.linux.org.uk,
        chuck.lever@...cle.com, jlayton@...nel.org, zohar@...ux.ibm.com,
        dmitry.kasatkin@...il.com, paul@...l-moore.com, jmorris@...ei.org,
        serge@...lyn.com, dhowells@...hat.com, jarkko@...nel.org,
        stephen.smalley.work@...il.com, eparis@...isplace.org,
        casey@...aufler-ca.com, brauner@...nel.org
Cc:     linux-fsdevel@...r.kernel.org, linux-nfs@...r.kernel.org,
        linux-integrity@...r.kernel.org,
        linux-security-module@...r.kernel.org, keyrings@...r.kernel.org,
        selinux@...r.kernel.org, linux-kernel@...r.kernel.org,
        Roberto Sassu <roberto.sassu@...wei.com>
Subject: Re: [PATCH 11/28] evm: Complete description of evm_inode_setattr()

On Mon, 2023-03-06 at 12:04 -0500, Stefan Berger wrote:
> 
> On 3/3/23 13:18, Roberto Sassu wrote:
> > From: Roberto Sassu <roberto.sassu@...wei.com>
> > 
> > Add the description for missing parameters of evm_inode_setattr() to
> > avoid the warning arising with W=n compile option.
> > 
> > Fixes: 817b54aa45db ("evm: add evm_inode_setattr to prevent updating an invalid security.evm")
> > Fixes: c1632a0f1120 ("fs: port ->setattr() to pass mnt_idmap")
> > Signed-off-by: Roberto Sassu <roberto.sassu@...wei.com>
> 
> Among the previous patches I think there were 2 fixes like this one you could possibly also split off.

Didn't find it.

Thanks

Roberto

> Reviewed-by: Stefan Berger <stefanb@...ux.ibm.com>
> > ---
> >   security/integrity/evm/evm_main.c | 2 ++
> >   1 file changed, 2 insertions(+)
> > 
> > diff --git a/security/integrity/evm/evm_main.c b/security/integrity/evm/evm_main.c
> > index 1155a58ae87..8b5c472f78b 100644
> > --- a/security/integrity/evm/evm_main.c
> > +++ b/security/integrity/evm/evm_main.c
> > @@ -798,7 +798,9 @@ static int evm_attr_change(struct mnt_idmap *idmap,
> >   
> >   /**
> >    * evm_inode_setattr - prevent updating an invalid EVM extended attribute
> > + * @idmap: idmap of the mount
> >    * @dentry: pointer to the affected dentry
> > + * @attr: iattr structure containing the new file attributes
> >    *
> >    * Permit update of file attributes when files have a valid EVM signature,
> >    * except in the case of them having an immutable portable signature.