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From: Aditya Garg <gargaditya08@live.com>
To: Matthew Garrett <mjg59@srcf.ucam.org>
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: Thu, 10 Feb 2022 05:54:34 +0000	[thread overview]
Message-ID: <A069AC2B-7F37-414E-A411-291DCF407AF8@live.com> (raw)
In-Reply-To: <20220209183545.GA14552@srcf.ucam.org>


> 
> The LOAD_UEFI_KEYS code isn't doing anything special here - it's just 
> trying to read some variables. If we simply disable that then the 
> expectation would be that reading the same variables from userland would 
> trigger the same failure. So the question is which of the variables that 
> LOAD_UEFI_KEYS accesses is triggering the failure, and what's special 
> about that? If it's a specific variable GUID or name that's failing, we 
> should block that on Apple hardware in order to avoid issues caused by 
> userland performing equivalent accesses.

The size log seems to be extra when crash occurs

integrity: Couldn't get size: 0x8000000000000015
integrity: MODSIGN: Couldn't get UEFI db list
efi: EFI Runtime Services are disabled!
integrity: Couldn't get size: 0x8000000000000015
integrity: Couldn't get UEFI dbx list
integrity: Couldn't get size: 0x8000000000000015
integrity: Couldn't get mokx list
integrity: Couldn't get size: 0x80000000


      parent reply	other threads:[~2022-02-10  5:54 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
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 [this message]

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