From: Ken Goldman <kgold@linux.ibm.com>
To: Evan Green <evgreen@chromium.org>, linux-kernel@vger.kernel.org
Cc: Matthew Garrett <mgarrett@aurora.tech>,
dlunev@google.com, zohar@linux.ibm.com, jejb@linux.ibm.com,
linux-integrity@vger.kernel.org, corbet@lwn.net,
rjw@rjwysocki.net, gwendal@chromium.org, jarkko@kernel.org,
linux-pm@vger.kernel.org, Len Brown <len.brown@intel.com>,
Pavel Machek <pavel@ucw.cz>,
"Rafael J. Wysocki" <rafael@kernel.org>
Subject: TPM: hibernate with IMA PCR 10
Date: Mon, 29 Aug 2022 17:45:18 -0400 [thread overview]
Message-ID: <deafaf6f-8e79-b193-68bf-3ab01bddd5c2@linux.ibm.com> (raw)
In-Reply-To: <20220504161439.6.Ifff11e11797a1bde0297577ecb2f7ebb3f9e2b04@changeid>
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On 5/4/2022 7:20 PM, Evan Green wrote:
> Enabling the kernel to be able to do encryption and integrity checks on
> the hibernate image prevents a malicious userspace from escalating to
> kernel execution via hibernation resume. [snip]
I have a related question.
When a TPM powers up from hibernation, PCR 10 is reset. When a
hibernate image is restored:
1. Is there a design for how PCR 10 is restored?
2. How are /sys/kernel/security/ima/[pseudofiles] saved and
restored?
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next prev parent reply other threads:[~2022-08-29 21:45 UTC|newest]
Thread overview: 42+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-05-04 23:20 [PATCH 00/10] Encrypted Hibernation Evan Green
2022-05-04 23:20 ` [PATCH 01/10] tpm: Add support for in-kernel resetting of PCRs Evan Green
2022-05-04 23:20 ` [PATCH 02/10] tpm: Allow PCR 23 to be restricted to kernel-only use Evan Green
2022-05-04 23:20 ` [PATCH 03/10] security: keys: trusted: Parse out individual components of the key blob Evan Green
2022-05-04 23:20 ` [PATCH 04/10] security: keys: trusted: Allow storage of PCR values in creation data Evan Green
2022-08-02 23:00 ` Eric Biggers
2022-08-03 20:48 ` Evan Green
2022-05-04 23:20 ` [PATCH 05/10] security: keys: trusted: Verify " Evan Green
2022-05-04 23:20 ` [PATCH 06/10] PM: hibernate: Add kernel-based encryption Evan Green
2022-08-29 21:45 ` Ken Goldman [this message]
2022-08-29 21:51 ` TPM: hibernate with IMA PCR 10 Matthew Garrett
2022-08-31 2:48 ` Jarkko Sakkinen
2022-09-07 20:47 ` Evan Green
2022-09-07 23:57 ` Mimi Zohar
2022-09-08 5:25 ` Jarkko Sakkinen
2022-09-11 2:40 ` Mimi Zohar
2022-09-20 4:36 ` Jarkko Sakkinen
2022-09-21 20:15 ` Mimi Zohar
2022-09-23 13:30 ` Jarkko Sakkinen
2022-09-27 16:03 ` Evan Green
2022-09-28 9:42 ` Jonathan McDowell
2022-05-04 23:20 ` [PATCH 07/10] PM: hibernate: Use TPM-backed keys to encrypt image Evan Green
2022-05-04 23:21 ` [PATCH 08/10] PM: hibernate: Mix user key in encrypted hibernate Evan Green
2022-05-06 16:08 ` Pavel Machek
2022-05-09 16:44 ` Evan Green
2022-05-10 12:29 ` Pavel Machek
2022-05-10 16:02 ` Evan Green
2022-08-02 22:48 ` Eric Biggers
2022-08-03 20:48 ` Evan Green
2022-05-04 23:21 ` [PATCH 09/10] PM: hibernate: Verify the digest encryption key Evan Green
2022-08-02 22:51 ` Eric Biggers
2022-05-04 23:21 ` [PATCH 10/10] PM: hibernate: seal the encryption key with a PCR policy Evan Green
2022-05-06 16:08 ` [PATCH 00/10] Encrypted Hibernation Pavel Machek
2022-05-09 16:43 ` Evan Green
2022-05-17 16:06 ` Rafael J. Wysocki
2022-05-17 17:34 ` Evan Green
2022-06-16 15:42 ` Evan Green
2022-08-01 22:32 ` Evan Green
2022-08-02 18:36 ` Matthew Garrett
2022-08-04 0:59 ` Jarkko Sakkinen
2022-08-04 21:55 ` Evan Green
2022-08-06 18:21 ` Jarkko Sakkinen
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