From patchwork Tue May 18 04:40:11 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Siddhesh Poyarekar X-Patchwork-Id: 1479940 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=sourceware.org (client-ip=2620:52:3:1:0:246e:9693:128c; helo=sourceware.org; envelope-from=libc-alpha-bounces@sourceware.org; receiver=) Authentication-Results: ozlabs.org; dkim=pass (1024-bit key; secure) header.d=sourceware.org header.i=@sourceware.org header.a=rsa-sha256 header.s=default header.b=ZSYxiVAk; dkim-atps=neutral Received: from sourceware.org (server2.sourceware.org [IPv6:2620:52:3:1:0:246e:9693:128c]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 4FkjxJ03XLz9sWW for ; Tue, 18 May 2021 14:40:51 +1000 (AEST) Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id F2DE63857011; Tue, 18 May 2021 04:40:46 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org F2DE63857011 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1621312847; bh=tiKmhF6H+jiE862epppkGG1tFPtOVRU3Ko5hTQfO9eQ=; h=To:Subject:Date:In-Reply-To:References:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To: From; b=ZSYxiVAkAgLqAfvsHWSHykQ9HdGpOKlYQIUQFZIxHyEkYcONZBi3YaKC2dF3Ote2h 8/sQRE06atUbGcYjHKAkye7hNA5Lc5kQoDcYBqkjltub0kUDZwMsOPDHttyGx8I+v1 sFDt+ryCaZtHEV4nAcXvVFA54l9iGfIG3tt65ZBM= X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from insect.birch.relay.mailchannels.net (insect.birch.relay.mailchannels.net [23.83.209.93]) by sourceware.org (Postfix) with ESMTPS id D7D1D3857011 for ; Tue, 18 May 2021 04:40:43 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org D7D1D3857011 X-Sender-Id: dreamhost|x-authsender|siddhesh@gotplt.org Received: from relay.mailchannels.net (localhost [127.0.0.1]) by relay.mailchannels.net (Postfix) with ESMTP id 86477701766; Tue, 18 May 2021 04:40:42 +0000 (UTC) Received: from pdx1-sub0-mail-a84.g.dreamhost.com (100-105-161-139.trex.outbound.svc.cluster.local [100.105.161.139]) (Authenticated sender: dreamhost) by relay.mailchannels.net (Postfix) with ESMTPA id 2BA8D7016F2; Tue, 18 May 2021 04:40:42 +0000 (UTC) X-Sender-Id: dreamhost|x-authsender|siddhesh@gotplt.org Received: from pdx1-sub0-mail-a84.g.dreamhost.com (pop.dreamhost.com [64.90.62.162]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384) by 100.105.161.139 (trex/6.2.1); Tue, 18 May 2021 04:40:42 +0000 X-MC-Relay: Neutral X-MailChannels-SenderId: dreamhost|x-authsender|siddhesh@gotplt.org X-MailChannels-Auth-Id: dreamhost X-Scare-Eight: 4bf3c49a453208b7_1621312842414_592503046 X-MC-Loop-Signature: 1621312842414:447520034 X-MC-Ingress-Time: 1621312842414 Received: from pdx1-sub0-mail-a84.g.dreamhost.com (localhost [127.0.0.1]) by pdx1-sub0-mail-a84.g.dreamhost.com (Postfix) with ESMTP id C01E289A8B; Mon, 17 May 2021 21:40:41 -0700 (PDT) Received: from rhbox.intra.reserved-bit.com (unknown [1.186.101.110]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: siddhesh@gotplt.org) by pdx1-sub0-mail-a84.g.dreamhost.com (Postfix) with ESMTPSA id 176DA89A8A; Mon, 17 May 2021 21:40:39 -0700 (PDT) X-DH-BACKEND: pdx1-sub0-mail-a84 To: libc-alpha@sourceware.org Subject: [COMMITTED 2/3] ldconfig: Fix memory leaks Date: Tue, 18 May 2021 10:10:11 +0530 Message-Id: <20210518044012.910681-2-siddhesh@sourceware.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210518044012.910681-1-siddhesh@sourceware.org> References: <20210518044012.910681-1-siddhesh@sourceware.org> MIME-Version: 1.0 X-Spam-Status: No, score=-3494.8 required=5.0 tests=BAYES_00, GIT_PATCH_0, JMQ_SPF_NEUTRAL, KAM_DMARC_NONE, KAM_DMARC_STATUS, RCVD_IN_BARRACUDACENTRAL, RCVD_IN_DNSWL_NONE, RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_NEUTRAL, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) 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: Siddhesh Poyarekar via Libc-alpha From: Siddhesh Poyarekar Reply-To: Siddhesh Poyarekar Errors-To: libc-alpha-bounces@sourceware.org Sender: "Libc-alpha" Coverity discovered that paths allocated by chroot_canon are not freed in a couple of routines in ldconfig. Reviewed-by: Adhemerval Zanella --- elf/ldconfig.c | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) diff --git a/elf/ldconfig.c b/elf/ldconfig.c index 28ed637a29..bd2b837ec2 100644 --- a/elf/ldconfig.c +++ b/elf/ldconfig.c @@ -709,16 +709,14 @@ manual_link (char *library) if (lstat64 (real_library, &stat_buf)) { error (0, errno, _("Cannot lstat %s"), library); - free (path); - return; + goto out; } /* We don't want links here! */ else if (!S_ISREG (stat_buf.st_mode)) { error (0, 0, _("Ignored file %s since it is not a regular file."), library); - free (path); - return; + goto out; } if (process_file (real_library, library, libname, &flag, &osversion, @@ -726,14 +724,16 @@ manual_link (char *library) { error (0, 0, _("No link created since soname could not be found for %s"), library); - free (path); - return; + goto out; } if (soname == NULL) soname = implicit_soname (libname, flag); create_links (real_path, path, libname, soname); free (soname); +out: free (path); + if (path != real_path) + free (real_path); } @@ -920,8 +920,16 @@ search_dir (const struct dir_entry *entry) /* Remove stale symlinks. */ if (opt_link && strstr (direntry->d_name, ".so.")) unlink (real_file_name); + + if (opt_chroot != NULL) + free (target_name); + continue; } + + if (opt_chroot != NULL) + free (target_name); + is_dir = S_ISDIR (stat_buf.st_mode); /* lstat_buf is later stored, update contents. */