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=-12.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH, MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=ham 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 82CE7C433DF for ; Thu, 20 Aug 2020 09:30:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 53FBA21744 for ; Thu, 20 Aug 2020 09:30:48 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597915848; bh=9sLNKiGr0kKL5eCm7ftNJRKjGAReaohKKsu6DTFpr2Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=u7RBAnmlaFQb027/WQDeRF+yadiK+9QyoHkdvPBJ7iJ7lisdbh+GHStcSUmznCpli Mr9HEc0cA5Fj+baS8YRauKfaa9ddPDA4H5+NM+vjDoStkP6qcYgw+IX2dJw/LRFVTb vL/mjaQiZ/WauCSKu3YETK8TQhdAdq7kvCGIfcUw= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728175AbgHTJan (ORCPT ); Thu, 20 Aug 2020 05:30:43 -0400 Received: from mail.kernel.org ([198.145.29.99]:41406 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726884AbgHTJag (ORCPT ); Thu, 20 Aug 2020 05:30:36 -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 B48F5207DE; Thu, 20 Aug 2020 09:30:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597915836; bh=9sLNKiGr0kKL5eCm7ftNJRKjGAReaohKKsu6DTFpr2Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=HMnUImU52J6gsuSN6fLTr9g5SRP+iyX3i9CUzNhl5mYST/S+omiFZqyn1YQ/BI6uE A/Map0r7P2s7b/UVhtAeATfbItnesAUo6S/5jGUyPpR/4hU4Ix4D5yB23IwGghz8cD fgdVg5x5GLC4kg+Yqzz8U05Bt5BD9vvrWEGwIL+k= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Chao Yu , Jaegeuk Kim , Sasha Levin Subject: [PATCH 5.8 150/232] f2fs: compress: fix to avoid memory leak on cc->cpages Date: Thu, 20 Aug 2020 11:20:01 +0200 Message-Id: <20200820091620.078275416@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200820091612.692383444@linuxfoundation.org> References: <20200820091612.692383444@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: Chao Yu [ Upstream commit 02772fbfcba8597eef9d5c5f7f94087132d0c1d4 ] Memory allocated for storing compressed pages' poitner should be released after f2fs_write_compressed_pages(), otherwise it will cause memory leak issue. Signed-off-by: Chao Yu Fixes: 4c8ff7095bef ("f2fs: support data compression") Signed-off-by: Jaegeuk Kim Signed-off-by: Sasha Levin --- fs/f2fs/compress.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/fs/f2fs/compress.c b/fs/f2fs/compress.c index 1e02a8c106b0a..f6fbe61b1251e 100644 --- a/fs/f2fs/compress.c +++ b/fs/f2fs/compress.c @@ -1353,6 +1353,8 @@ int f2fs_write_multi_pages(struct compress_ctx *cc, err = f2fs_write_compressed_pages(cc, submitted, wbc, io_type); cops->destroy_compress_ctx(cc); + kfree(cc->cpages); + cc->cpages = NULL; if (!err) return 0; f2fs_bug_on(F2FS_I_SB(cc->inode), err != -EAGAIN); -- 2.25.1