linux-kernel - Re: [PATCH 04/11] evm: Check size of security.evm before using it

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Message-ID: <1a30cf978efa004efb5583c2c1aef0121eaa6caa.camel@linux.ibm.com>
Date:   Mon, 24 Aug 2020 08:14:46 -0400
From:   Mimi Zohar <zohar@...ux.ibm.com>
To:     Roberto Sassu <roberto.sassu@...wei.com>, mjg59@...gle.com
Cc:     linux-integrity@...r.kernel.org,
        linux-security-module@...r.kernel.org,
        linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH 04/11] evm: Check size of security.evm before using it

On Thu, 2020-06-18 at 18:01 +0200, Roberto Sassu wrote:
> This patch checks the size for the EVM_IMA_XATTR_DIGSIG and
> EVM_XATTR_PORTABLE_DIGSIG types to ensure that the algorithm is read from
> the buffer returned by vfs_getxattr_alloc().
> 
> Cc: stable@...r.kernel.org # 4.19.x
> Fixes: 5feeb61183dde ("evm: Allow non-SHA1 digital signatures")
> Signed-off-by: Roberto Sassu <roberto.sassu@...wei.com>

Reviewed-by: Mimi Zohar <zohar@...ux.ibm.com>