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Mon, 27 Jul 2026 15:21:57 -0700 (PDT) From: Frederick Lawler Subject: [PATCH v2 0/3] integrity: Return error codes in audit messages Date: Mon, 27 Jul 2026 17:21:46 -0500 Message-Id: <20260727-report-hash-error-v2-0-30e394f524fc@cloudflare.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAPrZZ2oC/32NTQrCMBBGr1Jm7Ugn1viz8h7SRUimJlCbMqlBK bm7sQdw+R5871shsQROcG1WEM4hhThVULsGrDfTgzG4yqBapdsTaRSeoyzoTfLIIlHwqNqD0wN r7hjqbhYewntr3vvKPqQlyme7yPSz/2qZkNBYuqgzESnubnaMLzeMRnhv4xP6UsoXcWmTE7cAA AA= X-Change-ID: 20260716-report-hash-error-5203d6fe6e4e To: Mimi Zohar , Roberto Sassu , Dmitry Kasatkin , Eric Snowberg , Paul Moore , James Morris , "Serge E. Hallyn" Cc: linux-integrity@vger.kernel.org, linux-security-module@vger.kernel.org, linux-kernel@vger.kernel.org, kernel-team@cloudflare.com, Frederick Lawler X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=2510; i=fred@cloudflare.com; h=from:subject:message-id; bh=vUmD8Dr1QA/q8Q5d8zJXZvPMSpBgJu62nHTvdE3NCM0=; b=owEBbQKS/ZANAwAKAasltHYDktNtAcsmYgBqZ9oEz8vmACgchaAlUZ8X0byfE2zbrZJR3FcBV cmw25ubkDKJAjMEAAEKAB0WIQTLNBqMVmu1PHvjOe2rJbR2A5LTbQUCamfaBAAKCRCrJbR2A5LT bc80D/4vyPjPTHlGSnetDvPZMblFGs4VQ98hXY1QHPQN70lnFNFoHiz9LG5EUU58Hk/edL3HOBP YOUt5kLwVRtAJookHprCyPuoxwHbKSBZGistCNmjMAWnQnHWA7HAyS6qlqvVfVOofX4USrRqveV FoLc9CAEndg79m3j5ki6EEk35j4vWCP6OEMbKs9agB690P1gmsTv3NqGzOuVQ2ugS1rfWZ7iyoW XcB0Fe9UHdPCuv3pHPJkgc+uL0KXDfEVHwVSBHL6WS/tDoJ/+Rt2mvMWaFHuZviqBD1rES8ecjS n4R9EaIzdM06r58FPnJfeXkmLrxsvmqxBkN2GdM3qcFO2kG4R11ZJxdnRyrTwlUAnbOSwQ60unI gjr0Ktk5wlghEwdkpehjHaS+qpOcW/tzEg7ClHcSR+8R+uNyryglI9AEYtQiZ4Obl+pHLgzfYon FPPYXekeAAKc2EUPEge8fNukz0vxxRnMLjXTGAR+enybw90xIkHO0ZuAf/2GAYulcVgMipPxPNZ 9DCL/Nc+f/QhGNqlY4eBOgNgXzR9vYHkxCMeOQg3F49M0b2mMCZOP6El4KCdvZDM4TeUjFxNnIj y0CGsZ5wJOfPM11PgpgyDmxNoSGrhmmHprTVZKeEjgFujaBlceXO07KDmsjMdfhL5hGNDINz347 2o9qxnPaJ1DMnyA== X-Developer-Key: i=fred@cloudflare.com; a=openpgp; fpr=CB341A8C566BB53C7BE339EDAB25B4760392D36D Commit 2f845882ecd2 ("integrity: Add errno field in audit message") introduced an audit log function that can take an error code. It is wrapped by integrity_audit_msg() that implicitly sets the error code argument to zero. The problem is that there are uses of integrity_audit_msg() such as ima_collect_measurement() that hide the failure cause for the message. This series aims to convert integrity_audit_msg() call sites to integrity_audit_message(), and then expose error codes based on the following criteria: 1. The log depends on a result from earlier callee, and/or 2. The caller function itself returns with that result ima_release_policy() is the only caller I thought made sense to keep as is. The message doesn't correlate with a return code, nor does it depend on a result from an earlier callee in the function. Signed-off-by: Frederick Lawler --- This is probably a bit more than what was asked from v1, but as I was making changes and looking at other call sites, I didn't think it made sense to keep integrity_audit_msg() around anymore. Changes in v2: - Changes from v1 are now reflected in patch 3. - Replace all instances of integrity_audit_msg(). - Convert to patch series. - Link to v1: https://lore.kernel.org/r/20260716-report-hash-error-v1-1-ac19281112e4@cloudflare.com --- Frederick Lawler (3): integrity: Replace all uses of integrity_audit_msg() with integrity_audit_message() integrity: Remove integrity_audit_msg() integrity: Report error code in integrity_audit_message() call sites security/integrity/evm/evm_main.c | 38 ++++++++++++++++++------------- security/integrity/ima/ima_api.c | 20 ++++++++-------- security/integrity/ima/ima_appraise.c | 12 +++++----- security/integrity/ima/ima_fs.c | 11 +++++---- security/integrity/ima/ima_init.c | 4 ++-- security/integrity/ima/ima_main.c | 16 +++++++------ security/integrity/ima/ima_policy.c | 25 ++++++++++---------- security/integrity/ima/ima_queue.c | 4 ++-- security/integrity/ima/ima_template_lib.c | 6 ++--- security/integrity/integrity.h | 11 --------- security/integrity/integrity_audit.c | 8 ------- 11 files changed, 73 insertions(+), 82 deletions(-) --- base-commit: 1da739feb31b4fecae465ebf87ba44a97e44101b change-id: 20260716-report-hash-error-5203d6fe6e4e Best regards, -- Frederick Lawler