From: Pavel Machek <pavel@ucw.cz>
To: Evan Green <evgreen@chromium.org>
Cc: linux-kernel@vger.kernel.org, gwendal@chromium.org,
Eric Biggers <ebiggers@kernel.org>,
Matthew Garrett <mgarrett@aurora.tech>,
jarkko@kernel.org, zohar@linux.ibm.com,
linux-integrity@vger.kernel.org, apronin@chromium.org,
dlunev@google.com, rjw@rjwysocki.net, linux-pm@vger.kernel.org,
corbet@lwn.net, jejb@linux.ibm.com,
David Howells <dhowells@redhat.com>, Hao Wu <hao.wu@rubrik.com>,
James Morris <jmorris@namei.org>, Jason Gunthorpe <jgg@ziepe.ca>,
Len Brown <len.brown@intel.com>,
Matthew Garrett <matthewgarrett@google.com>,
Paul Moore <paul@paul-moore.com>, Peter Huewe <peterhuewe@gmx.de>,
"Rafael J. Wysocki" <rafael@kernel.org>,
"Serge E. Hallyn" <serge@hallyn.com>, axelj <axelj@axis.com>,
keyrings@vger.kernel.org, linux-doc@vger.kernel.org,
linux-security-module@vger.kernel.org
Subject: Re: [PATCH v2 00/10] Encrypted Hibernation
Date: Tue, 20 Sep 2022 10:46:48 +0200 [thread overview]
Message-ID: <20220920084648.GA17087@duo.ucw.cz> (raw)
In-Reply-To: <20220823222526.1524851-1-evgreen@chromium.org>
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Hi!
> We are exploring enabling hibernation in some new scenarios. However,
> our security team has a few requirements, listed below:
> 1. The hibernate image must be encrypted with protection derived from
> both the platform (eg TPM) and user authentication data (eg
> password).
> 2. Hibernation must not be a vector by which a malicious userspace can
> escalate to the kernel.
Why is #2 reasonable requirement?
We normally allow userspace with appropriate permissions to update the
kernel, for example.
Best regards,
Pavel
--
People of Russia, stop Putin before his war on Ukraine escalates.
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next prev parent reply other threads:[~2022-09-20 8:47 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-23 22:25 [PATCH v2 00/10] Encrypted Hibernation Evan Green
2022-08-23 22:25 ` [PATCH v2 01/10] tpm: Add support for in-kernel resetting of PCRs Evan Green
2022-08-26 2:59 ` Jarkko Sakkinen
2022-09-07 17:02 ` Evan Green
2022-09-08 5:22 ` Jarkko Sakkinen
2022-08-23 22:25 ` [PATCH v2 02/10] tpm: Allow PCR 23 to be restricted to kernel-only use Evan Green
2022-08-26 3:02 ` Jarkko Sakkinen
2022-09-07 17:03 ` Evan Green
2022-09-13 12:26 ` Stefan Berger
2022-09-20 4:50 ` Jarkko Sakkinen
2022-09-21 15:35 ` Evan Green
2022-09-21 18:02 ` Jarkko Sakkinen
2022-09-21 18:05 ` Jarkko Sakkinen
2022-09-21 19:02 ` Evan Green
2022-08-23 22:25 ` [PATCH v2 03/10] security: keys: trusted: Include TPM2 creation data Evan Green
2022-09-20 23:04 ` Kees Cook
2022-09-23 22:22 ` Evan Green
2022-08-23 22:25 ` [PATCH v2 04/10] security: keys: trusted: Allow storage of PCR values in " Evan Green
2022-08-24 11:56 ` Ben Boeckel
2022-08-24 17:34 ` Evan Green
2022-08-23 22:25 ` [PATCH v2 05/10] security: keys: trusted: Verify " Evan Green
2022-09-20 23:06 ` Kees Cook
2022-09-23 22:23 ` Evan Green
2022-08-23 22:25 ` [PATCH v2 06/10] PM: hibernate: Add kernel-based encryption Evan Green
2022-09-20 23:09 ` Kees Cook
2022-08-23 22:25 ` [PATCH v2 07/10] PM: hibernate: Use TPM-backed keys to encrypt image Evan Green
2022-09-20 23:16 ` Kees Cook
2022-09-23 22:23 ` Evan Green
2022-09-24 4:31 ` Kees Cook
2022-08-23 22:25 ` [PATCH v2 08/10] PM: hibernate: Mix user key in encrypted hibernate Evan Green
2022-08-23 22:25 ` [PATCH v2 09/10] PM: hibernate: Verify the digest encryption key Evan Green
2022-08-23 22:25 ` [PATCH v2 10/10] PM: hibernate: seal the encryption key with a PCR policy Evan Green
2022-09-20 23:24 ` Kees Cook
2022-08-31 18:34 ` [PATCH v2 00/10] Encrypted Hibernation Limonciello, Mario
2022-09-07 17:03 ` Evan Green
2022-09-20 8:46 ` Pavel Machek [this message]
2022-09-20 16:39 ` Evan Green
2022-09-21 18:09 ` Jason Gunthorpe
2022-09-20 22:52 ` Kees Cook
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