From: Matthew Garrett <mjg59@srcf.ucam.org>
To: Aditya Garg <gargaditya08@live.com>
Cc: Ard Biesheuvel <ardb@kernel.org>, Jeremy Kerr <jk@ozlabs.org>,
"joeyli.kernel@gmail.com" <joeyli.kernel@gmail.com>,
"zohar@linux.ibm.com" <zohar@linux.ibm.com>,
"jmorris@namei.org" <jmorris@namei.org>,
"eric.snowberg@oracle.com" <eric.snowberg@oracle.com>,
"dhowells@redhat.com" <dhowells@redhat.com>,
"jlee@suse.com" <jlee@suse.com>,
"James.Bottomley@hansenpartnership.com"
<James.Bottomley@HansenPartnership.com>,
"jarkko@kernel.org" <jarkko@kernel.org>,
"mic@digikod.net" <mic@digikod.net>,
"dmitry.kasatkin@gmail.com" <dmitry.kasatkin@gmail.com>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
"linux-efi@vger.kernel.org" <linux-efi@vger.kernel.org>,
"linux-security-module@vger.kernel.org"
<linux-security-module@vger.kernel.org>,
"stable@vger.kernel.org" <stable@vger.kernel.org>,
"keyrings@vger.kernel.org" <keyrings@vger.kernel.org>,
"linux-integrity@vger.kernel.org"
<linux-integrity@vger.kernel.org>,
Orlando Chamberlain <redecorating@protonmail.com>,
Aun-Ali Zaidi <admin@kodeit.net>
Subject: Re: [PATCH] efi: Do not import certificates from UEFI Secure Boot for T2 Macs
Date: Sat, 12 Feb 2022 19:42:40 +0000 [thread overview]
Message-ID: <20220212194240.GA4131@srcf.ucam.org> (raw)
In-Reply-To: <F078BEBE-3DED-4EE3-A2B8-2C5744B5454C@live.com>
On Sat, Feb 12, 2022 at 05:53:47AM +0000, Aditya Garg wrote:
> Feb 12 11:01:52 MacBook kernel: Reading EFI variable db-d719b2cb-3d3a-4596-a3bc-dad00e67656f
Ok. With CONFIG_LOAD_UEFI_KEYS=n, can you run:
cat /sys/firmware/efi/efivars/db-d719b2cb-3d3a-4596-a3bc-dad00e67656f
and see whether it generates the same failure? If so then my (handwavy)
guess is that something's going wrong with a firmware codepath for the
d719b2cb-3d3a-4596-a3bc-dad00e67656f GUID. Someone could potentially
then figure out whether the same happens under Windows, but the easiest
thing is probably to just return a failure on Apple hardware when
someone tries to access anything with that GUID.
next prev parent reply other threads:[~2022-02-12 19:42 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-09 14:27 [PATCH] efi: Do not import certificates from UEFI Secure Boot for T2 Macs Aditya Garg
2022-02-09 15:39 ` David Laight
2022-02-10 10:43 ` Aditya Garg
2022-02-10 10:44 ` [PATCH v2] " Aditya Garg
2022-02-10 10:47 ` [PATCH v3] " Aditya Garg
2022-02-13 7:39 ` Lukas Wunner
2022-02-13 8:36 ` Aditya Garg
2022-02-23 13:49 ` Aditya Garg
2022-02-10 10:47 ` [PATCH v2] " Ard Biesheuvel
2022-02-10 10:53 ` Aditya Garg
2022-02-09 16:49 ` [PATCH] " Matthew Garrett
2022-02-09 18:02 ` Aditya Garg
2022-02-09 18:35 ` Matthew Garrett
2022-02-09 19:37 ` Matthew Garrett
2022-02-10 4:43 ` Aditya Garg
2022-02-10 5:49 ` Aditya Garg
2022-02-10 18:09 ` Matthew Garrett
2022-02-11 4:51 ` Aditya Garg
2022-02-11 16:28 ` Matthew Garrett
2022-02-12 5:53 ` Aditya Garg
2022-02-12 19:42 ` Matthew Garrett [this message]
2022-02-13 8:22 ` Aditya Garg
2022-02-13 21:33 ` Matthew Garrett
2022-02-14 0:33 ` Aditya Garg
2022-02-10 5:54 ` Aditya Garg
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