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From: Roberto Sassu <roberto.sassu@huawei.com>
To: Mimi Zohar <zohar@linux.ibm.com>, <dmitry.kasatkin@huawei.com>,
	<mjg59@google.com>
Cc: <linux-integrity@vger.kernel.org>, <linux-doc@vger.kernel.org>,
	<linux-security-module@vger.kernel.org>,
	<linux-kernel@vger.kernel.org>, <silviu.vlasceanu@huawei.com>,
	<stable@vger.kernel.org>
Subject: Re: [PATCH 3/4] ima: don't ignore INTEGRITY_UNKNOWN EVM status
Date: Tue, 21 May 2019 09:26:53 +0200
Message-ID: <e81b761c-9133-a432-4d06-3cfe57e29e4b@huawei.com> (raw)
In-Reply-To: <1558387212.4039.77.camel@linux.ibm.com>

On 5/20/2019 11:20 PM, Mimi Zohar wrote:
> On Thu, 2019-05-16 at 18:12 +0200, Roberto Sassu wrote:
>> diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
>> index 52e6fbb042cc..80e1c233656b 100644
>> --- a/Documentation/admin-guide/kernel-parameters.txt
>> +++ b/Documentation/admin-guide/kernel-parameters.txt
>> @@ -1588,6 +1588,9 @@
>>   			Format: { "off" | "enforce" | "fix" | "log" }
>>   			default: "enforce"
>>   
>> +	ima_appraise_req_evm
>> +			[IMA] require EVM for appraisal with file digests.
> 
> As much as possible we want to limit the number of new boot command
> line options as possible.  Is there a reason for not extending
> "ima_appraise=" with "require-evm" or "enforce-evm"?

ima-appraise= can be disabled with CONFIG_IMA_APPRAISE_BOOTPARAM, which
probably is done when the system is in production.

Should I allow to use ima-appraise=require-evm even if
CONFIG_IMA_APPRAISE_BOOTPARAM=n?

Thanks

Roberto

-- 
HUAWEI TECHNOLOGIES Duesseldorf GmbH, HRB 56063
Managing Director: Bo PENG, Jian LI, Yanli SHI

  reply index

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-16 16:12 [PATCH 1/4] evm: check hash algorithm passed to init_desc() Roberto Sassu
2019-05-16 16:12 ` [PATCH 2/4] evm: reset status in evm_inode_post_setattr() Roberto Sassu
2019-05-20 21:19   ` Mimi Zohar
2019-05-16 16:12 ` [PATCH 3/4] ima: don't ignore INTEGRITY_UNKNOWN EVM status Roberto Sassu
     [not found]   ` <20190517001001.9BEF620848@mail.kernel.org>
2019-05-17  0:30     ` Mimi Zohar
2019-05-17  1:07       ` Sasha Levin
2019-05-20 21:20   ` Mimi Zohar
2019-05-21  7:26     ` Roberto Sassu [this message]
2019-05-21 11:48       ` Mimi Zohar
2019-05-16 16:12 ` [PATCH 4/4] ima: only audit failed appraisal verifications Roberto Sassu
2019-05-20 21:20   ` Mimi Zohar
2019-05-21  7:32     ` Roberto Sassu
2019-05-20 21:19 ` [PATCH 1/4] evm: check hash algorithm passed to init_desc() Mimi Zohar

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