From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-io1-xd2b.google.com (mail-io1-xd2b.google.com [IPv6:2607:f8b0:4864:20::d2b]) by sourceware.org (Postfix) with ESMTPS id 57DBF395447F for ; Wed, 14 Sep 2022 00:52:27 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 57DBF395447F Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=gmail.com Received: by mail-io1-xd2b.google.com with SMTP id i7so2063023ioa.5 for ; Tue, 13 Sep 2022 17:52:27 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=content-transfer-encoding:in-reply-to:from:references:to :content-language:subject:user-agent:mime-version:date:message-id :from:to:cc:subject:date; bh=H+HFZis2p2eUBXVenNrG7wTnhrEXpelspi0ReMHYtmg=; b=N6VIAOPljE2YlaqVJ0bM2CtYH2Q7PSnViGEavFMuo7FIIL05agXsuuQCTNDBwAnJkK lQ0eyMaNUfeqIWcHscAr9b6IKP4qFP9aM3gtdIHCGBaw1opER42hbaiwk9zf8TU+XGtH V+NvFHEYlHRi4BD3gMXIRaeFpmlv4hhxy5wipM5CcsYDyFz69tbxxqRc4H2hkodv8Po/ u0Ls5yZKGDAEntB9a/i1RYlIZtloBlUiGndLN8ETeJnoX0XAs44z9hCUcobu8YGH4h7f 9Nms6D9FnCtGpeQ74Fhix5ild+toYWDMr8gBbiI59ua+n+IuDLCPsJST0FWKZycq2vzl U9AA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=content-transfer-encoding:in-reply-to:from:references:to :content-language:subject:user-agent:mime-version:date:message-id :x-gm-message-state:from:to:cc:subject:date; bh=H+HFZis2p2eUBXVenNrG7wTnhrEXpelspi0ReMHYtmg=; b=xU9Eso4OLdfDZaihvHANUrhcHNps4spEgGEI2cpc8yvCHKsfUd1hfaCMlgddXQsiwK CrvZ3WV8PhJRToRwHIvSBmBxCsF+Puxsh/+h2/I8CMBkIPNeB4e8O0kKVpusdnd19mG7 gLBauiRwL0THo+obXqvZrxr+vbiZzvVKDT9O4z9j1NnKzaGc1pZ41j2XDYgQZ5RNRyIO bDai9ZJY6HccLUXzLSy8RTY95mR3Vm0u5EL2SZcugGAIp+nEbyyR91lp37lIf47k+NuN Ykpb6NkpuOIjUT352nQtSz14BY+4nFo4/1olS3abX96DEZ4aleNEyf+v5xHVMDKeCz5s igyA== X-Gm-Message-State: ACgBeo3L6z960BA1i0mLtB7YGmj4EEqeLAfFSHlP0RvGfUb7qKWW+cFP FhhtK1WzlnM8WmTEohy979IK5Q/oRVsiqA== X-Google-Smtp-Source: AA6agR4A4hoJ4Yk9CFKAW12Tl1d4Q5OR/KgnRAV0VKfTeFbVF2J0tPYULvRvCDslbl9lqsLW8ttpLA== X-Received: by 2002:a6b:4113:0:b0:6a1:407a:d120 with SMTP id n19-20020a6b4113000000b006a1407ad120mr5133284ioa.44.1663116745916; Tue, 13 Sep 2022 17:52:25 -0700 (PDT) Received: from ?IPV6:2601:681:8600:13d0::7e4? ([2601:681:8600:13d0::7e4]) by smtp.gmail.com with ESMTPSA id o63-20020a022242000000b0034d160b7bfesm6265911jao.89.2022.09.13.17.52.25 for (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 13 Sep 2022 17:52:25 -0700 (PDT) Message-ID: <4cdcfcc2-c7d4-4302-9b14-8a0c863db611@gmail.com> Date: Tue, 13 Sep 2022 18:52:24 -0600 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.2.1 Subject: Re: ubsan: som_is_space null dereference Content-Language: en-US To: binutils@sourceware.org References: From: Jeff Law In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00,DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FREEMAIL_FROM,NICE_REPLY_A,RCVD_IN_DNSWL_NONE,SPF_HELO_NONE,SPF_PASS,TXREP,T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org List-Id: On 9/13/22 18:41, Alan Modra via Binutils wrote: > On objcopy of fuzzed file. > > * som.c (som_write_fixups): Exit loop if space sections all > processed. Fuzzing SOM objects.  That's dedication.  No doubt there's more of this lurking in those dusty corners. jeff