From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757973Ab2EIUO5 (ORCPT ); Wed, 9 May 2012 16:14:57 -0400 Received: from mail-wi0-f172.google.com ([209.85.212.172]:50158 "EHLO mail-wi0-f172.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751641Ab2EIUO4 (ORCPT ); Wed, 9 May 2012 16:14:56 -0400 Message-ID: <4FAACF55.5070809@gmail.com> Date: Wed, 09 May 2012 22:11:01 +0200 From: =?UTF-8?B?VmxhZGltaXIgJ8+GLWNvZGVyL3BoY29kZXInIFNlcmJpbmVua28=?= User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.3) Gecko/20120329 Icedove/10.0.3 MIME-Version: 1.0 To: linux-kernel@vger.kernel.org Subject: [PATCH] fix minixfs block limit check X-Enigmail-Version: 1.4.1 Content-Type: multipart/signed; micalg=pgp-sha512; protocol="application/pgp-signature"; boundary="------------enigE19A38006A126D8B59881D05" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is an OpenPGP/MIME signed message (RFC 2440 and 3156) --------------enigE19A38006A126D8B59881D05 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Hello, all. On minix2 and minix3 usually max_size is 7fffffff and the check in question prohibits creation of last block spanning right before 7fffffff. Here is a fix: --- fs/minix/itree_v2.c 2011-04-23 01:34:36.363725380 +0200 +++ /home/phcoder/projects/fs/minix/itree_v2.c 2012-05-09 21:47:52.335621065 +0200 @@ -32,7 +32,8 @@ if (block < 0) { printk("MINIX-fs: block_to_path: block %ld < 0 on dev %s\n", block, bdevname(sb->s_bdev, b)); - } else if (block >=3D (minix_sb(inode->i_sb)->s_max_size/sb->s_blocksize)) { + } else if ((u64) block * (u64) sb->s_blocksize + >=3D minix_sb(inode->i_sb)->s_max_size) { if (printk_ratelimit()) printk("MINIX-fs: block_to_path: " --=20 Regards Vladimir '=CF=86-coder/phcoder' Serbinenko --------------enigE19A38006A126D8B59881D05 Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iF4EAREKAAYFAk+q0DkACgkQNak7dOguQglhJwD/USv5OIeKQU3M5MN6WcMeKujL Tk3pZh0RoJr6QPQK+FoA/iUbihhRRsl0vl9NF8gFlLCPLjArCqXzS5whQMhuZlL+ =hRAZ -----END PGP SIGNATURE----- --------------enigE19A38006A126D8B59881D05--