From mboxrd@z Thu Jan 1 00:00:00 1970 From: Theodore Ts'o Subject: Re: [PATCH 2/3] ext4: always check ext4_ext_find_extent result Date: Sun, 13 Apr 2014 18:06:01 -0400 Message-ID: <20140413220601.GE8122@thunk.org> References: <1397403361-20459-1-git-send-email-dmonakhov@openvz.org> <1397403361-20459-2-git-send-email-dmonakhov@openvz.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-ext4@vger.kernel.org To: Dmitry Monakhov Return-path: Received: from imap.thunk.org ([74.207.234.97]:53677 "EHLO imap.thunk.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750859AbaDMWGD (ORCPT ); Sun, 13 Apr 2014 18:06:03 -0400 Content-Disposition: inline In-Reply-To: <1397403361-20459-2-git-send-email-dmonakhov@openvz.org> Sender: linux-ext4-owner@vger.kernel.org List-ID: On Sun, Apr 13, 2014 at 07:36:00PM +0400, Dmitry Monakhov wrote: > Where are some places where logic guaranties us that extent we are > searching exits, but this may not be true due to on-disk data > corruption. If such corruption happens we must prevent possible > null pointer dereferences. > > Signed-off-by: Dmitry Monakhov Thanks, applied. - Ted