From patchwork Wed Jul 3 18:24:47 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jarkko Sakkinen X-Patchwork-Id: 13722692 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 5B8011849EB; Wed, 3 Jul 2024 18:25:03 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720031103; cv=none; b=F46Ew8qnUaKjpqdd9C6pRfd4rMxe1H7u/jamldguu186OUVPFBaz6+1S9mj+fs3cRN/ddPAW857HWGO5Byfrc9413l4kF93ogT047VCs4ugJlJOfMMGPKsGlgfKSXRLpnhJ3Vl7XuLWCn7zUmKZ78qPDH5sYZyo4Yfv3AX1n9DI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1720031103; c=relaxed/simple; bh=P2JpZ39cO/wbzKDmrY/CH7fJrTG/jmJHZd2265VeCfo=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=VS6vVqPREc2dx8OCJ1cqSHpI9qQF7RCFwAnp2MyY3NG3zj6s6MU3evub/GidQCV4nD0N2NrbgbLwgJkUSznceMmNeosOR8sYYSKJI7SsgLJihXI1+VL05KPYIhVZ/ROeiJ08P224t7rLkykrD38fELVXOxBawwZGkXuFuH1Uzjc= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=VvKDuqd8; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="VvKDuqd8" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5138BC2BD10; Wed, 3 Jul 2024 18:25:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1720031102; bh=P2JpZ39cO/wbzKDmrY/CH7fJrTG/jmJHZd2265VeCfo=; h=From:To:Cc:Subject:Date:From; b=VvKDuqd8aLd5fjX4UMNMkoHkqTzjFglHX24jmhqH6eavPxWNLvtZCtoGRc8D5TWJ+ yPUNKtcj0juyMeARoM7VwF28hFqqcbnvFSzaOlwILfMyfHs4Pvmr4V6lqxjE3cwFBQ gbrIIv76Q3SyG1Pq1ePmhu2wcBaVBmpywzAuYqRHYzCkFRl/Ho8kRaybxyMA6YkfBL 2cvLLN5eSem9sAuQQwsVcJb67PhS/Eq0KBDMFz0Fvhr2umI/cLXfZBakKKBBnAGzV6 X2aYrEybi4kz+3GPBnd9TE/Kkbyv+/WRuxQiv7G8oer1Lfa+DGs5XWQOqcSK0zF2Kn vneMiWQOSJpaQ== From: Jarkko Sakkinen To: linux-integrity@vger.kernel.org Cc: Thorsten Leemhuis , Linus Torvalds , Jarkko Sakkinen , James Bottomley , Mimi Zohar , David Howells , Paul Moore , James Morris , "Serge E. Hallyn" , keyrings@vger.kernel.org, linux-security-module@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH v2 0/3] Address !chip->auth Date: Wed, 3 Jul 2024 21:24:47 +0300 Message-ID: <20240703182453.1580888-1-jarkko@kernel.org> X-Mailer: git-send-email 2.45.2 Precedence: bulk X-Mailing-List: keyrings@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Unless tpm2_sessions_init() is called, then chip->auth ends up being a null pointer, which is ignored by authenticated sessions code. These patches aim to fully address the bug, and hopefully still make into 6.10-rc7. Tested on x86-64 with: - TCG_TPM2_HMAC disabled. - TCG_TPM2_HMAC enabled. - TCG_TPM2_HMAC enabled, and "/* rc = tpm2_sessions_init(chip); */". v2: - Rebase to commit 8a9c6c40432e ("Merge tag 'io_uring-6.10-20240703' of git://git.kernel.dk/linux"). - Couple of cosmetic fixes. Jarkko Sakkinen (3): tpm: Address !chip->auth in tpm2_*_auth_session() tpm: Address !chip->auth in tpm_buf_append_name() tpm: Address !chip->auth in tpm_buf_append_hmac_session*() drivers/char/tpm/Makefile | 2 +- drivers/char/tpm/tpm2-sessions.c | 400 +++++++++++++++++-------------- include/linux/tpm.h | 75 ++---- 3 files changed, 245 insertions(+), 232 deletions(-)