From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id BA916E7735F for ; Sat, 30 Sep 2023 16:36:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234538AbjI3QgW (ORCPT ); Sat, 30 Sep 2023 12:36:22 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46882 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232221AbjI3QgT (ORCPT ); Sat, 30 Sep 2023 12:36:19 -0400 Received: from mail-oi1-x230.google.com (mail-oi1-x230.google.com [IPv6:2607:f8b0:4864:20::230]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4D7E5D3; Sat, 30 Sep 2023 09:36:16 -0700 (PDT) Received: by mail-oi1-x230.google.com with SMTP id 5614622812f47-3ae2f8bf865so7648484b6e.2; Sat, 30 Sep 2023 09:36:16 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1696091775; x=1696696575; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=iyt0KGC1OcelyqP8s+Yq2xN5/wo1kjcQggShUtRbwZo=; b=kHaSRXaiM/GpBnDMrUCWYfX8f/uDQOE1+MQ8qRriMs77q0EGd2EaRlE2uPiJqaHLk4 mrfc7q860nPDbnu5h8p+3avjVebkJZGoR6s/dgixxKuPcHGNawkm3BKxK87J7jTx3fN7 pcEu+nq5/hX+IxfSyKF7YQgKYqAPEUJWc+W1vJeC9Pw+eVf+oeTM2fq6tarIuzRHPPkY Hyrvul8hEdPgQGed927d4YEbrAIvLA8Sdftpzaw3rGc8WrcLq8jDIcbfdUtik2D2Qymt lJ3F/t0t9HBu12gC4tvQTT24mMrJ3d2msTiC2fOpKizSnNouohAdyGpyta51edodO9nW Nlxw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1696091775; x=1696696575; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=iyt0KGC1OcelyqP8s+Yq2xN5/wo1kjcQggShUtRbwZo=; b=nA/pYr5IEHIOhI7Q1lFIyr2F73W4inPZMSkjQOzANe+ik9Q2lw5mOgMLKGeV4jZjij 1Tt/D+fyC2pJUxxnHaQogO5wolGg/bjDilQcYvj6wjRHAsFmquQSqKM8uK2t0WlPj8OQ /z0zY+4dUHfxESln/S4LQ6zKKgJSbsIdzbrg1NIbKr82T/C0C11EAyVtTV2mTSgnUvXr +1t1mczQ7WGYjKo03hZh7LNotYhX802zrOUUL292B7go/vc9Mfaa3DrUUOcj0M8hEioV eKpfeApQ4VZs+wbccj3m61+afECLUnS9vXeummwEFJgHmjfy6aS787W4vQcYVn6qTWyp fDGg== X-Gm-Message-State: AOJu0YyJ95BmSzwVd/Lt3AoAdypSqCSWPMQw7N4on6fFc+te09kU61au jNZpHeW03bEj8GJc2N2P86o= X-Google-Smtp-Source: AGHT+IGrp36U8oVS9oihnUJtqY2rD9L79m36iKwc0SNUFVgHabnFPmI2BXNhQulf77W7U4MEhKzTUA== X-Received: by 2002:a05:6808:f01:b0:3a9:cfb5:4637 with SMTP id m1-20020a0568080f0100b003a9cfb54637mr8914851oiw.38.1696091775406; Sat, 30 Sep 2023 09:36:15 -0700 (PDT) Received: from google.com ([2620:15c:9d:2:a90f:2dad:30c1:d923]) by smtp.gmail.com with ESMTPSA id f18-20020a637552000000b005777a50c14csm16343594pgn.0.2023.09.30.09.36.14 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 30 Sep 2023 09:36:15 -0700 (PDT) Date: Sat, 30 Sep 2023 09:36:12 -0700 From: Dmitry Torokhov To: Kees Cook Cc: linux-input@vger.kernel.org, Nathan Chancellor , Nick Desaulniers , Tom Rix , linux-kernel@vger.kernel.org, llvm@lists.linux.dev, linux-hardening@vger.kernel.org Subject: Re: [PATCH] input: Annotate struct evdev_client with __counted_by Message-ID: References: <20230922175027.work.563-kees@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20230922175027.work.563-kees@kernel.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, Sep 22, 2023 at 10:50:28AM -0700, Kees Cook wrote: > Prepare for the coming implementation by GCC and Clang of the __counted_by > attribute. Flexible array members annotated with __counted_by can have > their accesses bounds-checked at run-time checking via CONFIG_UBSAN_BOUNDS > (for array indexing) and CONFIG_FORTIFY_SOURCE (for strcpy/memcpy-family > functions). > > As found with Coccinelle[1], add __counted_by for struct evdev_client. > > [1] https://github.com/kees/kernel-tools/blob/trunk/coccinelle/examples/counted_by.cocci > > Cc: Dmitry Torokhov > Cc: linux-input@vger.kernel.org > Signed-off-by: Kees Cook Applied, thank you. -- Dmitry