From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vegard Nossum Subject: Open bugs found by fuzzing as of 2016-07-30 Date: Sat, 30 Jul 2016 15:04:43 +0200 Message-ID: <579CA5EB.1070707@oracle.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit To: Ext4 Developers List Return-path: Received: from aserp1040.oracle.com ([141.146.126.69]:47209 "EHLO aserp1040.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750919AbcG3NEs (ORCPT ); Sat, 30 Jul 2016 09:04:48 -0400 Received: from aserv0021.oracle.com (aserv0021.oracle.com [141.146.126.233]) by aserp1040.oracle.com (Sentrion-MTA-4.3.2/Sentrion-MTA-4.3.2) with ESMTP id u6UD4l7k004644 (version=TLSv1 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Sat, 30 Jul 2016 13:04:47 GMT Received: from aserv0122.oracle.com (aserv0122.oracle.com [141.146.126.236]) by aserv0021.oracle.com (8.13.8/8.13.8) with ESMTP id u6UD4lsQ004232 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Sat, 30 Jul 2016 13:04:47 GMT Received: from abhmp0002.oracle.com (abhmp0002.oracle.com [141.146.116.8]) by aserv0122.oracle.com (8.13.8/8.13.8) with ESMTP id u6UD4jUM001438 for ; Sat, 30 Jul 2016 13:04:46 GMT Sender: linux-ext4-owner@vger.kernel.org List-ID: Hi, It's been two weeks since I posted the first list of bugs found using AFL: https://www.spinics.net/lists/linux-ext4/msg53022.html With a bunch of ext4 patches going into 4.8 we're down from 15 to 6 with current linus/master: 1. general protection fault: 0000 [#1] KASAN http://139.162.151.198/f/ext4/57be666646a37e9821d52bc64846a3b3b785ee7a 2. kernel BUG at fs/buffer.c:3061! http://139.162.151.198/f/ext4/7df880da89c82579c15ca8bc786a3467ca9c47f7 3. kernel BUG at fs/ext4/inode.c:3738! http://139.162.151.198/f/ext4/5bdefda69f39b2f2c56d9b67d5b7d9e2cc8dfd5f (discussion: https://www.spinics.net/lists/linux-ext4/msg53032.html) 4. kernel BUG at fs/ext4/mballoc.c:3191! http://139.162.151.198/f/ext4/34284738d67f0405325b2c43211c56020b9d0211 5. kernel BUG at fs/jbd2/commit.c:825! http://139.162.151.198/f/ext4/3143febf7925bd1ea398bd1a775551133bd69ffd 6. WARNING: CPU: 0 PID: 58 at fs/ext4/ext4.h:2748 ext4_block_bitmap_csum_set+0x358/0x600 http://139.162.151.198/f/ext4/9628c19aff0bbaaae4149a03486305c7f6cd7523 Vegard