linux-kernel - [PATCH v11 0/3] tpm: robust stack allocations

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Message-Id: <20250923170744.1749132-1-jarkko@kernel.org>
Date: Tue, 23 Sep 2025 20:07:41 +0300
From: Jarkko Sakkinen <jarkko@...nel.org>
To: linux-integrity@...r.kernel.org
Cc: Stefano Garzarella <sgarzare@...hat.com>,
	Jarkko Sakkinen <jarkko@...nel.org>,
	David Howells <dhowells@...hat.com>,
	Paul Moore <paul@...l-moore.com>,
	James Morris <jmorris@...ei.org>,
	"Serge E. Hallyn" <serge@...lyn.com>,
	keyrings@...r.kernel.org (open list:KEYS/KEYRINGS),
	linux-security-module@...r.kernel.org (open list:SECURITY SUBSYSTEM),
	linux-kernel@...r.kernel.org (open list)
Subject: [PATCH v11 0/3] tpm: robust stack allocations

1. These are previous changes to tpm_buf, which make stack allocations
   much more feasible than previously.
2. Migrate low-hanging fruit to use stack allocations.
3. Re-orchestrate tpm_get_random().

Jarkko Sakkinen (3):
  tpm: Make TPM buffer allocations more robust
  tpm: Use TPM_MIN_BUF_SIZE in driver commands
  tpm orchestrate tpm_get_random() in the function

 drivers/char/tpm/tpm-buf.c                | 139 +++++----
 drivers/char/tpm/tpm-dev-common.c         |   4 +-
 drivers/char/tpm/tpm-dev.h                |   2 +-
 drivers/char/tpm/tpm-interface.c          |  36 ++-
 drivers/char/tpm/tpm-sysfs.c              |  20 +-
 drivers/char/tpm/tpm.h                    |  16 +-
 drivers/char/tpm/tpm1-cmd.c               | 177 +++++------
 drivers/char/tpm/tpm2-cmd.c               | 349 +++++++++-------------
 drivers/char/tpm/tpm2-sessions.c          | 127 ++++----
 drivers/char/tpm/tpm2-space.c             |  44 ++-
 drivers/char/tpm/tpm_tis_i2c.c            |   4 +-
 drivers/char/tpm/tpm_vtpm_proxy.c         |  34 +--
 include/linux/tpm.h                       |  28 +-
 security/keys/trusted-keys/trusted_tpm1.c |  34 +--
 security/keys/trusted-keys/trusted_tpm2.c | 156 +++++-----
 15 files changed, 556 insertions(+), 614 deletions(-)

-- 
2.39.5