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=-6.1 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_PASS,URIBL_BLOCKED,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 53C1CC04AA8 for ; Tue, 30 Apr 2019 12:02:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 272B32075E for ; Tue, 30 Apr 2019 12:02:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1556625736; bh=WSfVr/AfKHXRAhATF3nWiTCXSPq40MQ8qrgmdbSzvjI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=L6jXwu8H9IY6pmVzSJmRjcRxepT4eRoZIThSe1xrVDg8Sn7mUmMIjfFSCMjvpkFWI W3Bb+3d2Z5M6dMCsmKnuYIAJTd+Iq2KQE+ut2h1+Syp7z1WOx2mbAvpguNR0dv98JS orh2xVESIi3taN382Fo2f1hxGSdZ1Jo5HPcatJOw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730145AbfD3LoR (ORCPT ); Tue, 30 Apr 2019 07:44:17 -0400 Received: from mail.kernel.org ([198.145.29.99]:55398 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730137AbfD3LoQ (ORCPT ); Tue, 30 Apr 2019 07:44:16 -0400 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id AA78521670; Tue, 30 Apr 2019 11:44:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1556624656; bh=WSfVr/AfKHXRAhATF3nWiTCXSPq40MQ8qrgmdbSzvjI=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=cL7id+19QZkmgAb3GmS7jOl/zqUub4m8ZvecfajiE50SCRuhcZKEZcOjDGS6ktt+x GUIpFwOsouAYoBAn7/UT0nIrhVde3BddAnncNX3nqtoOQNc6LldyYmaM22BwOopk8e m6LMwXrPtQ1zOC7bvgjM/lbdMYyWa93qthREKbu4= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Ronnie Sahlberg , Pavel Shilovsky , Steve French Subject: [PATCH 4.19 023/100] cifs: fix memory leak in SMB2_read Date: Tue, 30 Apr 2019 13:37:52 +0200 Message-Id: <20190430113609.986484214@linuxfoundation.org> X-Mailer: git-send-email 2.21.0 In-Reply-To: <20190430113608.616903219@linuxfoundation.org> References: <20190430113608.616903219@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Ronnie Sahlberg commit 05fd5c2c61732152a6bddc318aae62d7e436629b upstream. Commit 088aaf17aa79300cab14dbee2569c58cfafd7d6e introduced a leak where if SMB2_read() returned an error we would return without freeing the request buffer. Cc: Stable Signed-off-by: Ronnie Sahlberg Reviewed-by: Pavel Shilovsky Signed-off-by: Steve French Signed-off-by: Greg Kroah-Hartman --- fs/cifs/smb2pdu.c | 1 + 1 file changed, 1 insertion(+) --- a/fs/cifs/smb2pdu.c +++ b/fs/cifs/smb2pdu.c @@ -3285,6 +3285,7 @@ SMB2_read(const unsigned int xid, struct rc); } free_rsp_buf(resp_buftype, rsp_iov.iov_base); + cifs_small_buf_release(req); return rc == -ENODATA ? 0 : rc; } else trace_smb3_read_done(xid, req->PersistentFileId,