Re: Simple script that locks up my box with recent kernels

Dave Jones
2006-11-22T17:59:07Z

On Wed, Nov 22, 2006 at 10:32:36AM +0000, Pádraig Brady wrote:

> > Heh, it's amazing how commonplace that mistake is.
> > Come back bzero, all is forgiven..
>
> It's interesting to do the following on google codesearch
>
> lang:^(c|c\+\+)$ memset\ *\(.*,\ *0\ *\);
> http://tinyurl.com/y47qu4
>
> lang:^(c|c\+\+)$ \sif\([^)]*\);
> http://tinyurl.com/y4mdbl
>
> It would be interesting to build
> up a suite of these regular expressions.

A bunch of people already started gathering these a day
or so after codesearch launched..

http://asert.arbornetworks.com/2006/10/static-code-analysis-using-google-code-search/
is a good start.
http://www.cipher.org.uk/index.php?p=projects/bugle.project
is also somewhat interesting (but from a security bug standpoint only)

I've got some crufty shell scripts that I grew that I use
from time to time that just grep a bunch of patterns, I've had
"put them all together and make one decent one" on my todo
for a while. I'll see if I can get to it this week.
I've used these occasionally not just to find bugs in the kernel
but across a completely unpacked distro source tree.
Amazing what turns up sometimes.

Dave

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