From: Mimi Zohar <zohar@linux.ibm.com>
To: Roberto Sassu <roberto.sassu@huawei.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 07:48:43 -0400 [thread overview]
Message-ID: <1558439323.4039.141.camel@linux.ibm.com> (raw)
In-Reply-To: <e81b761c-9133-a432-4d06-3cfe57e29e4b@huawei.com>
On Tue, 2019-05-21 at 09:26 +0200, Roberto Sassu wrote:
> 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?
Yes, that should be fine. It's making "ima_appraise" stricter.
Mimi
next prev parent reply other threads:[~2019-05-21 11:49 UTC|newest]
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
2019-05-21 11:48 ` Mimi Zohar [this message]
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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