From patchwork Sun Jul 11 14:35:46 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Florian Weimer X-Patchwork-Id: 44309 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 9979C384F009 for ; Sun, 11 Jul 2021 14:36:19 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 9979C384F009 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1626014179; bh=VJT9Kobh8wdrPZzlKHD86HnUZccx95dt79y2SRFYUmo=; h=To:Subject:Date:List-Id:List-Unsubscribe:List-Archive:List-Post: List-Help:List-Subscribe:From:Reply-To:From; b=QsoAo8SDP+BfHRVsWTqgQY/yAL/DrUlLtbtIGsfD31Lx1a/QYMptYCLNWsBS9XJ1L Xnx3UbLC6Jjne6NyYinISI4mSGuBt648aB4KqCqe5/CxPlll5LKMl1z66tCIooGNVU kvyImq3Eq9zZPniAoqo/P4E0DTYvJLwVCpq6Yz8A= X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [216.205.24.124]) by sourceware.org (Postfix) with ESMTP id 95DC93857421 for ; Sun, 11 Jul 2021 14:35:57 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 95DC93857421 Received: from mimecast-mx01.redhat.com (mimecast-mx01.redhat.com [209.132.183.4]) (Using TLS) by relay.mimecast.com with ESMTP id us-mta-343-P-_kZOkqMr2Zz8N1BB8byw-1; Sun, 11 Jul 2021 10:35:55 -0400 X-MC-Unique: P-_kZOkqMr2Zz8N1BB8byw-1 Received: from smtp.corp.redhat.com (int-mx01.intmail.prod.int.phx2.redhat.com [10.5.11.11]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx01.redhat.com (Postfix) with ESMTPS id EDD81362F8 for ; Sun, 11 Jul 2021 14:35:54 +0000 (UTC) Received: from oldenburg.str.redhat.com (ovpn-112-103.rdu2.redhat.com [10.10.112.103]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 5023969CB4 for ; Sun, 11 Jul 2021 14:35:54 +0000 (UTC) To: libc-alpha@sourceware.org Subject: [PATCH] nis: nis_local_group may read from __nisgroup[-1] (bug 28075) Date: Sun, 11 Jul 2021 16:35:46 +0200 Message-ID: <87tul0ex4t.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 10.5.11.11 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-Spam-Status: No, score=-12.9 required=5.0 tests=BAYES_00, DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, GIT_PATCH_0, RCVD_IN_DNSWL_LOW, RCVD_IN_MSPIKE_H4, RCVD_IN_MSPIKE_WL, 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-Patchwork-Original-From: Florian Weimer via Libc-alpha From: Florian Weimer Reply-To: Florian Weimer Errors-To: libc-alpha-bounces+patchwork=sourceware.org@sourceware.org Sender: "Libc-alpha" Tested on i686-linux-gnu and x86_64-linux-gnu. Reviewed-by: Carlos O'Donell --- nis/nis_local_names.c | 1 + 1 file changed, 1 insertion(+) diff --git a/nis/nis_local_names.c b/nis/nis_local_names.c index 080dcf88bd..218764f32e 100644 --- a/nis/nis_local_names.c +++ b/nis/nis_local_names.c @@ -31,6 +31,7 @@ nis_local_group (void) char *cptr; if (__nisgroup[0] == '\0' && (cptr = getenv ("NIS_GROUP")) != NULL + && cptr[0] != '\0' && strlen (cptr) < NIS_MAXNAMELEN) { char *cp = stpcpy (__nisgroup, cptr);