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 88F43385780A for ; Tue, 23 Nov 2021 14:02:44 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 88F43385780A 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-86-cUZN2A_gPO-yJ6EYLSccIg-1; Tue, 23 Nov 2021 09:02:40 -0500 X-MC-Unique: cUZN2A_gPO-yJ6EYLSccIg-1 Received: from smtp.corp.redhat.com (int-mx05.intmail.prod.int.phx2.redhat.com [10.5.11.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id AA3F01018720; Tue, 23 Nov 2021 14:02:39 +0000 (UTC) Received: from oldenburg.str.redhat.com (unknown [10.39.192.29]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 3836B5F4EA; Tue, 23 Nov 2021 14:02:38 +0000 (UTC) From: Florian Weimer To: Adhemerval Zanella Cc: jma14 , John Mellor-Crummey , libc-alpha@sourceware.org, "Mark W. Krentel" , Xiaozhu Meng Subject: Re: Fwd: [PATCH v5 00/22] Some rtld-audit fixes References: <20211122114629.Horde._rW0tgxbf_wCwsiLyKcms3g@webmail.rice.edu> Date: Tue, 23 Nov 2021 15:02:36 +0100 In-Reply-To: (Adhemerval Zanella's message of "Tue, 23 Nov 2021 10:58:49 -0300") Message-ID: <87tug3rmv7.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 10.5.11.15 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Type: text/plain X-Spam-Status: No, score=-6.6 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_H2, SPF_HELO_NONE, SPF_NONE, TXREP 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: Tue, 23 Nov 2021 14:02:47 -0000 * Adhemerval Zanella: > In fact I think rather than using the argv[0], since it passing the > executable path is just a convention; I think it would be better to > use AT_EXECFN. On recent kernel it is always passed to userland and > kernel should be responsible to hide any filesystem information if it > is required. It's still a relative path to an unknown directory, I think. I expect (but have not checked) that it is the pathname argument to execveat, which may not be meaningful to the new process image. Thanks, Florian