From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by sourceware.org (Postfix) with ESMTPS id 930023858410 for ; Mon, 17 Jan 2022 09:32:27 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 930023858410 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-192-NAsjlFUxPG-UcU_mDnWtpA-1; Mon, 17 Jan 2022 04:32:16 -0500 X-MC-Unique: NAsjlFUxPG-UcU_mDnWtpA-1 Received: from smtp.corp.redhat.com (int-mx02.intmail.prod.int.phx2.redhat.com [10.5.11.12]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id 0CDBA80B71F; Mon, 17 Jan 2022 09:32:15 +0000 (UTC) Received: from oldenburg.str.redhat.com (unknown [10.39.192.198]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 33C427B9D0; Mon, 17 Jan 2022 09:32:14 +0000 (UTC) From: Florian Weimer To: Siddhesh Poyarekar Cc: libc-alpha@sourceware.org Subject: Re: [PATCH 3/4] sunrpc: Test case for clnt_create "unix" buffer overflow (bug 22542) References: <5e6f9d7240e55d438438d457f169132cf89fb8a0.1642148513.git.fweimer@redhat.com> <3c2a7cbc-9284-75dc-e7d0-8cab8571fe3a@gotplt.org> <87mtjuoh9a.fsf@oldenburg.str.redhat.com> Date: Mon, 17 Jan 2022 10:32:12 +0100 In-Reply-To: (Siddhesh Poyarekar's message of "Mon, 17 Jan 2022 15:00:43 +0530") Message-ID: <87fspmoggz.fsf@oldenburg.str.redhat.com> User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/27.2 (gnu/linux) MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.79 on 10.5.11.12 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain X-Spam-Status: No, score=-5.8 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_NONE, TXREP, URIBL_BLACK autolearn=ham autolearn_force=no version=3.4.4 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 17 Jan 2022 09:32:28 -0000 * Siddhesh Poyarekar: > On 17/01/2022 14:45, Florian Weimer wrote: >> It has in linkobj/libc.so: >> $ eu-readelf --symbols=.dynsym linkobj/libc.so | grep clnt_create >> 3126: 000387a0 465 FUNC GLOBAL DEFAULT 14 clnt_create@@GLIBC_2.0 > > That's weird, shouldn't it be non-default given that it is deprecated? > Why is it needed for internal linking? For tests? Yes. linkobj/libc.so and libc.so are different. It's a compatibility symbol in libc.so. Thanks, Florian