From patchwork Wed May 8 17:31:45 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kees Cook X-Patchwork-Id: 13658944 Received: from mail-pl1-f182.google.com (mail-pl1-f182.google.com [209.85.214.182]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E25E612AAD1 for ; Wed, 8 May 2024 17:31:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.182 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715189516; cv=none; b=tAqoD4YEkpI8h9vdz8BSUEoF3fvxsEc+bykmjDpxK2MI7BeNfll3/AKfGV75G5JV3NPNXtB5LenKUdsEjf43QGii8vINFfbE/uixb0197Yv6V1MR+bXdzMgX1WIjYa8lCHvIL9Sm6ej5HnOYlna2RBkIpm4JXEK5gv6oYAOB06Y= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715189516; c=relaxed/simple; bh=5xDT7DTBCjbbpPDtqZw3zek1av22h4oXew+hsl9hZOU=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=bk0HrkAsUR6Z0l867Cf33gDSYu1PJkmLSQpw5WM565KV8eQLngGLvmg1hPcUAfQKWbVR56XOfzoHkX6eJkfsXcdRMKIVBBNSBlBjT3XAfCS1WXA1gk1lxHfh75HqgErX95BCZHZSZEN72Z4zaTWmenltnTFeCCFPxtTsUnIJXr0= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org; spf=pass smtp.mailfrom=chromium.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b=nCM+WFPR; arc=none smtp.client-ip=209.85.214.182 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=chromium.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=chromium.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="nCM+WFPR" Received: by mail-pl1-f182.google.com with SMTP id d9443c01a7336-1eb0e08bfd2so28020875ad.1 for ; Wed, 08 May 2024 10:31:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; t=1715189512; x=1715794312; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=LryZi+4xwYKtyQkC5nMcWsfEgNGSH+ki5if1tY9mlg4=; b=nCM+WFPRZqK0n4KYwKTC1b8m6FM5oyeYQZTwxokQ3YCgYXM+mUFSC+4EvK5pOzaXCZ eVQkOcuUr6vvWaWxylVrvp3mYYwm7FHP/DKtbhyfocIN+AoUs3bfGis2eo3an2FMt4ND PaooO3ZMWyXWXvvP+/AIIzWj6/bTVMTZ51qoE= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1715189512; x=1715794312; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=LryZi+4xwYKtyQkC5nMcWsfEgNGSH+ki5if1tY9mlg4=; b=CD4BTGKMhi64Wby03/Nu48H6PI89YbvBbMj42AyUw6tnOEignHdxPneNeTECFkeOjp gi3KyYeOhgEQqoGOz1w+EOWWJRM8Nm56EEIeTUfwZ94kw3iHYM91Rkw/3wVfezqg0l5L kHXY4e0X1sTHJofuLuq7icjgWNnH0kLI5aZplvI+UdWuP+4as0VW7aeLPgCdCx0Hd9Gi 97yQlFgyLLzdVDm/mSh2ppmXWgn/ibGMJjgZnnLAUWqUrl473nIyM+Ne20iXC4yaFc4D XR9d1Hw+8CwuOylMUtKC6fSzvuRCWhrPwi1Fq0IdAzS1/edJNNoH3xPXYO8yBsre6FI0 qQow== X-Forwarded-Encrypted: i=1; AJvYcCWW/JxK1Njqlhq1iKAc4bXmj5zGkpLC6aPZ5wK+c+qbZcons4ikPhK1GT0vAAURNFJv6NPRJCXxCbK92QKayufT85b6fXZQ7c8Gjwby9S86 X-Gm-Message-State: AOJu0YyO+5vKUZ832nA4FZMdv79cdGa4ihxOwoQatFAaJy7ZtBb81rQC LBHj02CdO9XVSIeBqfuJ3TZrUoXCVq+itweGLkPWV+X+Xu/qzWEMvhSB8nPbYw== X-Google-Smtp-Source: AGHT+IEBz3iujEGHUiN6pMwCCHLnL29pazXkZjYSQaEFT4k7Uon0fGO9xIj8pPF7qEuotMY2ECs8Zg== X-Received: by 2002:a17:902:f681:b0:1ed:867:9ea0 with SMTP id d9443c01a7336-1eeb09959b0mr33516135ad.57.1715189512079; Wed, 08 May 2024 10:31:52 -0700 (PDT) Received: from www.outflux.net ([198.0.35.241]) by smtp.gmail.com with ESMTPSA id jv21-20020a170903059500b001e0e977f655sm12119608plb.159.2024.05.08.10.31.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 08 May 2024 10:31:50 -0700 (PDT) From: Kees Cook To: "H . J . Lu" Cc: Kees Cook , Chris Kennelly , Eric Biederman , Shuah Khan , Muhammad Usama Anjum , John Hubbard , Fangrui Song , Andrew Morton , Yang Yingliang , Mike Rapoport , Rui Salvaterra , Victor Stinner , Jan Palus , Al Viro , Christian Brauner , Jan Kara , linux-kernel@vger.kernel.org, linux-mm@kvack.org, linux-kselftest@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-hardening@vger.kernel.org Subject: [PATCH 0/3] binfmt_elf: Honor PT_LOAD alignment for static PIE Date: Wed, 8 May 2024 10:31:45 -0700 Message-Id: <20240508172848.work.131-kees@kernel.org> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Developer-Signature: v=1; a=openpgp-sha256; l=790; i=keescook@chromium.org; h=from:subject:message-id; bh=5xDT7DTBCjbbpPDtqZw3zek1av22h4oXew+hsl9hZOU=; b=owEBbQKS/ZANAwAKAYly9N/cbcAmAcsmYgBmO7cEADvYffN1IC7/pVMiNzZAqfw7Siu+Vh+L3 X1eDIp1zK6JAjMEAAEKAB0WIQSlw/aPIp3WD3I+bhOJcvTf3G3AJgUCZju3BAAKCRCJcvTf3G3A JmkbEACfFPYAlzDSyubCWagkKZa2qIhZ6/mp1d3/SgVGYzBvGQnXlJun4QXlTonBEGtFOXgxdpl ZwxYMmMKIVUgMU9c1MH/KPPOBmIaWpU9jjz/QrbWsNuu4VmFN1Gj7nl22S/nVG7HWsVv0jpC4lz 7Sqs1+HpviNBmb8g6pqStPU/D/Yi/UrYqEonlqv1ZwHATGOK38l338xxyK9Z1ojBFHo1X+Qcb7c TabR6GmdvbsmsUrMuBJ+grnobY0qs11GQoQuOcHeLRQ0l8rLh3QC5Byrc4BU/2CiJQ5uschDVvy ZLOgpYnBNtypoT2jgmSYL7W0U3m9Tud5jZMJo3nWeM0SWGFnQxCFIA9/G5yUPoXUDs/ChAO1ZFU WmAvz4xGhA2LFIJew4hyv9djB4hMTzOjgCmEWb5ruq86U/vV5xXGTw6p2XIXfGNmTJQ8A88U+aO DT+IWPlcpvcH2bIaabMPuVsazNTByLLuKaC4hWlxUsbcT2V2sFysugeQmnBu1AkmNPic8F6E0N7 m8PIo0vEubdPVFgKmSjqbnq+ggAollnp/GowN9s+7GGpWt8CYdw2JCLUkpz8ZjuqmT4TeBjspib +V6QOz0laYM4paS0xqONSlvrmCyanG2EFHXRFITXzG7F2xE/cH266l5bxOaoZi35b3UzS9Reeop xZN+QDCi hUsCcdA== X-Developer-Key: i=keescook@chromium.org; a=openpgp; fpr=A5C3F68F229DD60F723E6E138972F4DFDC6DC026 Hi, This attempts to implement PT_LOAD p_align support for static PIE builds. I intend this to go into -next after the coming merge window so we can maximize bake time. In the past we've had regressions with both the selftests and the ELF loader. Hopefully we can shake everything out over a few months. :) Thanks! -Kees Kees Cook (3): selftests/exec: Build both static and non-static load_address tests binfmt_elf: Calculate total_size earlier binfmt_elf: Honor PT_LOAD alignment for static PIE fs/binfmt_elf.c | 94 ++++++++++++++------- tools/testing/selftests/exec/Makefile | 19 +++-- tools/testing/selftests/exec/load_address.c | 67 ++++++++++++--- 3 files changed, 130 insertions(+), 50 deletions(-)