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

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Date:   Mon, 6 Mar 2023 12:04:05 -0500
From:   Stefan Berger <stefanb@...ux.ibm.com>
To:     Roberto Sassu <roberto.sassu@...weicloud.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 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.

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.