From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from simark.ca by simark.ca with LMTP id SY2rKOrb92MOADwAWB0awg (envelope-from ) for ; Thu, 23 Feb 2023 16:34:34 -0500 Received: by simark.ca (Postfix, from userid 112) id 9874B1E128; Thu, 23 Feb 2023 16:34:34 -0500 (EST) Authentication-Results: simark.ca; dkim=pass (1024-bit key; secure) header.d=sourceware.org header.i=@sourceware.org header.a=rsa-sha256 header.s=default header.b=ktQmlwoc; dkim-atps=neutral X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on simark.ca X-Spam-Level: X-Spam-Status: No, score=-9.0 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,MAILING_LIST_MULTI,NICE_REPLY_A, RCVD_IN_DNSWL_HI,URIBL_BLOCKED autolearn=ham autolearn_force=no version=3.4.6 Received: from sourceware.org (server2.sourceware.org [8.43.85.97]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by simark.ca (Postfix) with ESMTPS id 426241E128 for ; Thu, 23 Feb 2023 16:34:34 -0500 (EST) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id DF5BE3857BA4 for ; Thu, 23 Feb 2023 21:34:30 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org DF5BE3857BA4 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1677188070; bh=2eV66SgBfmOSRH7xfbxkWMbMYlWCglqKwMoRavwWomM=; h=Date:Subject:To:Cc:References:In-Reply-To:List-Id: List-Unsubscribe:List-Archive:List-Post:List-Help:List-Subscribe: From:Reply-To:From; b=ktQmlwocy4GosohqfEOlA/VjmW/7wh75mmAyAQI68x5+JqbyVlMg44aaJeiP9PA2N buWLkC7MOPxZmWPgaCcLPJA8c1q3QQ1NHU/I6RHOPwgGDkQGPZrQ7LVAQ0+PSkHaCJ cLdsNMwLRhDAGTKpKMB5cXyaUbCKTMjdXkKVeHK8= Received: from simark.ca (simark.ca [158.69.221.121]) by sourceware.org (Postfix) with ESMTPS id 69AF73858C00 for ; Thu, 23 Feb 2023 21:34:11 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 69AF73858C00 Received: from [172.16.0.192] (192-222-180-24.qc.cable.ebox.net [192.222.180.24]) (using TLSv1.3 with cipher TLS_AES_128_GCM_SHA256 (128/128 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by simark.ca (Postfix) with ESMTPSA id 80D3C1E128; Thu, 23 Feb 2023 16:34:10 -0500 (EST) Message-ID: <62b3feea-91ba-7fbb-1f6d-115902dc9bf6@simark.ca> Date: Thu, 23 Feb 2023 16:34:10 -0500 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.8.0 Subject: Re: [PATCH] GDB: Fix out of bounds accesses with limited-length values Content-Language: fr To: "Maciej W. Rozycki" , gdb-patches@sourceware.org Cc: Andrew Burgess , Tom Tromey , Richard Bunt References: In-Reply-To: Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-BeenThere: gdb-patches@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Gdb-patches mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , From: Simon Marchi via Gdb-patches Reply-To: Simon Marchi Errors-To: gdb-patches-bounces+public-inbox=simark.ca@sourceware.org Sender: "Gdb-patches" On 2/23/23 16:14, Maciej W. Rozycki wrote: > Fix accesses to limited-length values in `contents_copy_raw' and > `contents_copy_raw_bitwise' so that they observe the limit of the > original allocation. > > Reported by Simon Marchi as a heap-buffer-overflow AddressSanitizer > issue triggered with gdb.ada/limited-length.exp. > --- > Hi, > > Verified to remove the original issue and not to cause any regressions > with and w/o AddressSanitizer and native `x86_64-linux-gnu'. OK to apply? > > Maciej Thanks, that LGTM: Approved-By: Simon Marchi Simon