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=-6.8 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS,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 9E426C3524D for ; Mon, 3 Feb 2020 16:33:12 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6CFA62087E for ; Mon, 3 Feb 2020 16:33:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1580747592; bh=o8qXUuVMgURdjU9RXTf11ZkJaY0aPqvSHrfr4hZ1FSQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=QyeBue0d78dqer/Mr/4svrn2jYm3j2C1XimJeoUJZMaXUORhYUeTxRAXx4J7NWmKK Tbf6Al+uQghSnw/aTE7zXiR1JBDm5NnYl03i4YNJIL9oInp/H763ghHWmwuZOVLCPI TsA7stzVVlklGT2a4l64wr+9bYvHmh7WE7GeambM= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730259AbgBCQdL (ORCPT ); Mon, 3 Feb 2020 11:33:11 -0500 Received: from mail.kernel.org ([198.145.29.99]:46912 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730233AbgBCQdD (ORCPT ); Mon, 3 Feb 2020 11:33:03 -0500 Received: from localhost (unknown [104.132.45.99]) (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 29F552082E; Mon, 3 Feb 2020 16:33:02 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1580747582; bh=o8qXUuVMgURdjU9RXTf11ZkJaY0aPqvSHrfr4hZ1FSQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GFRDZBN+49ZGD8HXefe5wt2LUPYfNZ4PZwUDRBbc3ZvjyMi7tpucl0hoqmtr5kC6s NPYaVBkh+kaVZAAHbqOC4YSBCgZM1XLxH/ji2TrlUYTiX1JbCLqyJ4jWZNEq6TXh27 0uCuJ3SqiVyxFAaVknDHYKrbiU+8y7L8vQcWP0JQ= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, syzbot+1c6756baf4b16b94d2a6@syzkaller.appspotmail.com, Jan Kara Subject: [PATCH 4.19 14/70] reiserfs: Fix memory leak of journal device string Date: Mon, 3 Feb 2020 16:19:26 +0000 Message-Id: <20200203161914.658593167@linuxfoundation.org> X-Mailer: git-send-email 2.25.0 In-Reply-To: <20200203161912.158976871@linuxfoundation.org> References: <20200203161912.158976871@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Jan Kara commit 5474ca7da6f34fa95e82edc747d5faa19cbdfb5c upstream. When a filesystem is mounted with jdev mount option, we store the journal device name in an allocated string in superblock. However we fail to ever free that string. Fix it. Reported-by: syzbot+1c6756baf4b16b94d2a6@syzkaller.appspotmail.com Fixes: c3aa077648e1 ("reiserfs: Properly display mount options in /proc/mounts") CC: stable@vger.kernel.org Signed-off-by: Jan Kara Signed-off-by: Greg Kroah-Hartman --- fs/reiserfs/super.c | 2 ++ 1 file changed, 2 insertions(+) --- a/fs/reiserfs/super.c +++ b/fs/reiserfs/super.c @@ -629,6 +629,7 @@ static void reiserfs_put_super(struct su reiserfs_write_unlock(s); mutex_destroy(&REISERFS_SB(s)->lock); destroy_workqueue(REISERFS_SB(s)->commit_wq); + kfree(REISERFS_SB(s)->s_jdev); kfree(s->s_fs_info); s->s_fs_info = NULL; } @@ -2243,6 +2244,7 @@ error_unlocked: kfree(qf_names[j]); } #endif + kfree(sbi->s_jdev); kfree(sbi); s->s_fs_info = NULL;