From patchwork Tue Feb 28 08:35:44 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Zhi Li X-Patchwork-Id: 13154527 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9187CC64EC7 for ; Tue, 28 Feb 2023 08:36:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229565AbjB1Igh (ORCPT ); Tue, 28 Feb 2023 03:36:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46094 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229511AbjB1Ige (ORCPT ); Tue, 28 Feb 2023 03:36:34 -0500 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 3E6FC19F25 for ; Tue, 28 Feb 2023 00:35:50 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1677573349; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=QAk5HDXijc1Zn+294xz/ng/XWRjBpvunH6owKK8lW6I=; b=GqI7qzNmKdPQmFccbBK9Bt4eDEyyKtcuuxxg4n5gcXpmRiL3kZqL7kz96wXanFFnnftSQQ /1Xbd7PNV6wud0Vjwri3lAZlGdTr72ny3in46cjU1LRhAe/nK1NkHo+2QR0tQyQ+r5tOhp jUGwd6VQnVP2k5MZ2rxaiXsvBLUMD8Y= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-516-K2PCY8YfNAiBKsOH-gmx3Q-1; Tue, 28 Feb 2023 03:35:48 -0500 X-MC-Unique: K2PCY8YfNAiBKsOH-gmx3Q-1 Received: from smtp.corp.redhat.com (int-mx07.intmail.prod.int.rdu2.redhat.com [10.11.54.7]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id E6B938432AF for ; Tue, 28 Feb 2023 08:35:47 +0000 (UTC) Received: from localhost (unknown [10.66.60.126]) by smtp.corp.redhat.com (Postfix) with ESMTP id 4C6CC140EBF6; Tue, 28 Feb 2023 08:35:47 +0000 (UTC) From: Zhi Li To: linux-nfs@vger.kernel.org Cc: steved@redhat.com, Zhi Li Subject: [PATCH] [nfs/nfs-utils/rpcbind] rpcbind: avoid dereferencing NULL from realloc() Date: Tue, 28 Feb 2023 16:35:44 +0800 Message-Id: <20230228083544.4035733-1-yieli@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 3.1 on 10.11.54.7 Precedence: bulk List-ID: X-Mailing-List: linux-nfs@vger.kernel.org Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=2173869 Signed-off-by: Zhi Li --- src/rpcbind.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/rpcbind.c b/src/rpcbind.c index ecebe97..6379a4e 100644 --- a/src/rpcbind.c +++ b/src/rpcbind.c @@ -471,6 +471,8 @@ init_transport(struct netconfig *nconf) nhostsbak = nhosts; nhostsbak++; hosts = realloc(hosts, nhostsbak * sizeof(char *)); + if (hosts == NULL) + errx(1, "Out of memory"); if (nhostsbak == 1) hosts[0] = "*"; else {