From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 7127DC43461 for ; Wed, 12 May 2021 17:55:40 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3BED061413 for ; Wed, 12 May 2021 17:55:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S241487AbhELRpF (ORCPT ); Wed, 12 May 2021 13:45:05 -0400 Received: from mail.kernel.org ([198.145.29.99]:53912 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240369AbhELQR4 (ORCPT ); Wed, 12 May 2021 12:17:56 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 2438761D71; Wed, 12 May 2021 15:43:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1620834226; bh=8vmq9Puda2Dmx8qN1xYgteUcNEpTEsxOm+8xqqF05IQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=0goca9b1kTqoGY4G/L9H2FMnKeOfBmlbhfmBrNrNhjv3Ugj6yRDHZ/3Q46EMg1rd+ NtkEPRNpTQqaRmRcazZfH5+3/YKmjOI7jPr8Vm2Ey+cWV5jvMo0bRzmn0jWk681aoU fBhRAP8Cfk7pezvlvN1xBElV57VSyto02sMX2ZdA= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Colin Ian King , Brian Foster , "Darrick J. Wong" , Sasha Levin Subject: [PATCH 5.11 460/601] xfs: fix return of uninitialized value in variable error Date: Wed, 12 May 2021 16:48:57 +0200 Message-Id: <20210512144842.989532495@linuxfoundation.org> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210512144827.811958675@linuxfoundation.org> References: <20210512144827.811958675@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Colin Ian King [ Upstream commit 3b6dd9a9aeeada19d0c820ff68e979243a888bb6 ] A previous commit removed a call to xfs_attr3_leaf_read that assigned an error return code to variable error. We now have a few early error return paths to label 'out' that return error if error is set; however error now is uninitialized so potentially garbage is being returned. Fix this by setting error to zero to restore the original behaviour where error was zero at the label 'restart'. Addresses-Coverity: ("Uninitialized scalar variable") Fixes: 07120f1abdff ("xfs: Add xfs_has_attr and subroutines") Signed-off-by: Colin Ian King Reviewed-by: Brian Foster Reviewed-by: Darrick J. Wong Signed-off-by: Darrick J. Wong Signed-off-by: Sasha Levin --- fs/xfs/libxfs/xfs_attr.c | 1 + 1 file changed, 1 insertion(+) diff --git a/fs/xfs/libxfs/xfs_attr.c b/fs/xfs/libxfs/xfs_attr.c index fd8e6418a0d3..96ac7e562b87 100644 --- a/fs/xfs/libxfs/xfs_attr.c +++ b/fs/xfs/libxfs/xfs_attr.c @@ -928,6 +928,7 @@ restart: * Search to see if name already exists, and get back a pointer * to where it should go. */ + error = 0; retval = xfs_attr_node_hasname(args, &state); if (retval != -ENOATTR && retval != -EEXIST) goto out; -- 2.30.2