Re: [dev] [st] Reporting a Segmentation fault

From: Greg Reagle <greg.reagle_AT_umbc.edu>
Date: Sat, 21 Nov 2015 07:35:11 -0500

On Sat, Nov 21, 2015 at 06:57:30AM -0500, Greg Reagle wrote:
> On Sat, Nov 21, 2015 at 11:08:08AM +0100, Martti Kühne wrote:
> > What makes you think this is an overflow?
>
> Because the segmentation fault occurs when ptr goes past the end of buf.

But you're right that buflen becomes a negative number sometimes too. This
function was written with no bounds checking on either buflen or ptr. I've
been trying to wrap my head around how to do it properly.
Received on Sat Nov 21 2015 - 13:35:11 CET