From mboxrd@z Thu Jan 1 00:00:00 1970 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 698C88BE7; Sun, 27 Apr 2025 01:38:39 +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=1745717919; cv=none; b=qau31aixhwTpTq/4LxB8qBu2EQyO9r7G0MXgSJZsCnU+TFeTvVUWPqTu83JOETPTf4E3tIRzI4mq1VoDYViNn13biSdxCLBBlreBI7wgnbSJy1guyooAeI3bzxTV5VCcYGbdRByBnxRcdLakHAgl2uyuqob0mJ2JNRaDhePnPYg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1745717919; c=relaxed/simple; bh=W6SN/J+RmPz+uzurgEk6TqbUvQ3pMLDP/yQDqSqqdIo=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version:Content-Type; b=N9ALYtJ8mHO5b9GsCfe2z4+k3HLXKqClspWn7WrCRW3byY6g60/+0+pi3k9XdfVoIk/Nrem73XoCl2fBEOw3hrjNSNQS25YP5E9wrZkatsFsMBkK5U/9rAshCtKhKN3prtSak/pIedsdGLMLpm1r1q+rNZFp1RKGebKNcntgT5M= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=PKNEOsP2; 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="PKNEOsP2" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DD454C4AF0C; Sun, 27 Apr 2025 01:38:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1745717918; bh=W6SN/J+RmPz+uzurgEk6TqbUvQ3pMLDP/yQDqSqqdIo=; h=From:To:Cc:Subject:Date:From; b=PKNEOsP26KcYZcTw0psvOQxNfhzsvt6h3QRZZHErbdaEBG72PcaD42zYA4Yq+8vVr DqqrWpEyXJttG8H4HAla1KAPbY0JW7EkTPs9BKxHzoeuUeWYtfep2x6d21p4F+WL2F CzYFQgBoStQhQq95omVQWDB9Bw4JEEzqLyzn/pwcHrpC+HJ2talD45ADh/Ne9PIQj7 wSryssH+UalegFIK7qCqhKFqaGWiJEM4VfelRqsY/DsOMB51O1Yd35HRx6F4JcRi3P vdh0yY8Vm/NLOxjKSfvNkS6qoDTZhyJc+CjNdSkJ/3ONAoPG6fjD3Y69iCCpersa14 wcLBpx191OdmQ== From: Kees Cook To: Arnd Bergmann Cc: Kees Cook , "Dr. David Alan Gilbert" , Mark Brown , WangYuli , =?UTF-8?q?Micka=C3=ABl=20Sala=C3=BCn?= , =?UTF-8?q?G=C3=BCnther=20Noack?= , Bill Wendling , Andrew Morton , Nathan Chancellor , Nick Desaulniers , Justin Stitt , Petr Mladek , David Gow , Rae Moar , Tamir Duberstein , Diego Vieira , Luis Chamberlain , "Gustavo A. R. Silva" , Paul Moore , James Morris , "Serge E. Hallyn" , linux-kernel@vger.kernel.org, llvm@lists.linux.dev, linux-hardening@vger.kernel.org, linux-security-module@vger.kernel.org Subject: [PATCH 0/3] randstruct: gcc-plugin: Remove bogus void member Date: Sat, 26 Apr 2025 18:38:32 -0700 Message-Id: <20250427013604.work.926-kees@kernel.org> X-Mailer: git-send-email 2.34.1 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 X-Developer-Signature: v=1; a=openpgp-sha256; l=918; i=kees@kernel.org; h=from:subject:message-id; bh=W6SN/J+RmPz+uzurgEk6TqbUvQ3pMLDP/yQDqSqqdIo=; b=owGbwMvMwCVmps19z/KJym7G02pJDBm8XTPP1rEcOrBGSNM6XOiD8hwjxi0cHwK5Ex6bPGkuk jzid9Swo5SFQYyLQVZMkSXIzj3OxeNte7j7XEWYOaxMIEMYuDgFYCI6JowMS3L1mTLWJv9NnXJR KNtr6/ezprOfT478rSTv+n2h/EnOXwx/pVw5hbjMD/4uzl2ydJHinJStwfOlrikYd+Q2zwxZGLC FFwA= X-Developer-Key: i=kees@kernel.org; a=openpgp; fpr=A5C3F68F229DD60F723E6E138972F4DFDC6DC026 Content-Transfer-Encoding: 8bit Hi, Okay, I've tracked down the problem with the randstruct GCC plugin, and written a KUnit test to validate behaviors. This lets us add it back the COMPILE_TEST builds. No need for https://lore.kernel.org/all/20250421000854.work.572-kees@kernel.org/ -Kees Kees Cook (3): randstruct: gcc-plugin: Remove bogus void member lib/tests: Add randstruct KUnit test Revert "hardening: Disable GCC randstruct for COMPILE_TEST" MAINTAINERS | 1 + lib/Kconfig.debug | 8 + lib/tests/Makefile | 1 + lib/tests/randstruct_kunit.c | 283 ++++++++++++++++++ scripts/gcc-plugins/randomize_layout_plugin.c | 18 +- security/Kconfig.hardening | 2 +- 6 files changed, 295 insertions(+), 18 deletions(-) create mode 100644 lib/tests/randstruct_kunit.c -- 2.34.1