Follow @Openwall on Twitter for new release announcements and other news
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <CANO7a6wPbFH-16jJjWiXfKw+CmZ2quv99yNPOOGH1pSPC9M7Kw@mail.gmail.com>
Date: Sat, 26 Jan 2013 19:07:19 +0530
From: Dhiru Kholia <dhiru.kholia@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: Office format bug

On Sat, Jan 26, 2013 at 7:05 PM, magnum <john.magnum@...hmail.com> wrote:
> On 01/26/2013 01:54 PM, magnum wrote:
>> According to this, it reads an "uninitialized value" from mysql-netauth
>> format's buffer space... not that I get how a calloc'ed buffer can be
>> uninitialized. The above is from --test=0 under linux 64-bit, built with
>> OMP but using only one thread.
>
>
> I get it now. mem_alloc_tiny() will malloc() a larger buffer and give out
> portions from that. So this was not actually memory from mysql-na but it
> happened to be allocated when that format used mem_alloc_tiny(). We probably
> don't have a problem at all. I will verify this but you can relax for now.

heh. I was debugging and wondering what was going on.

Now I can switch to making a new format instead ;)

-- 
Dhiru

Powered by blists - more mailing lists

Confused about mailing lists and their use? Read about mailing lists on Wikipedia and check out these guidelines on proper formatting of your messages.