On 04/02/2016 08:26 PM, Yuriy M. Kaminskiy wrote:
> Mike Frysinger <vap...@gentoo.org> writes:
>
> This does not cover out-of-bound SBackGroundColor (giflib does not
> verify if it is less than ColorCount).
> I've just sent *better* patch that fixes this problem:
> http://permalink.gmane.org/gmane.comp.window-managers.enlightenment.devel/64001
> (with wrong bug link)
>
>> From: Bernhard Übelacker <bernha...@vr-web.de>
>>
>> Verify the color map is inbounds before indexing with it.
>>
>> https://bugs.debian.org/785369
>> ---
>>   src/modules/loaders/loader_gif.c | 13 ++++++++++---
>>   1 file changed, 10 insertions(+), 3 deletions(-)
>>
>> diff --git a/src/modules/loaders/loader_gif.c 
>> b/src/modules/loaders/loader_gif.c
>> index 638df59..7bdf29c 100644
>> --- a/src/modules/loaders/loader_gif.c
>> +++ b/src/modules/loaders/loader_gif.c
>> @@ -170,9 +170,16 @@ load(ImlibImage * im, ImlibProgressFunction progress, 
>> char progress_granularity,
>>                       }
>>                     else
>>                       {
>> -                       r = cmap->Colors[rows[i][j]].Red;
>> -                       g = cmap->Colors[rows[i][j]].Green;
>> -                       b = cmap->Colors[rows[i][j]].Blue;
>> +                       if (rows[i][j] < cmap->ColorCount)
>> +                         {
>> +                            r = cmap->Colors[rows[i][j]].Red;
>> +                            g = cmap->Colors[rows[i][j]].Green;
>> +                            b = cmap->Colors[rows[i][j]].Blue;
>> +                         }
>> +                       else
>> +                         {
>> +                            r = g = b = 0;
>> +                         }
>>                          *ptr++ = (0xff << 24) | (r << 16) | (g << 8) | b;
>>                       }
>>                     per += per_inc;
>
>

Right, I was going to push Yuriys patches as they look a bit more 
correct and efficient to me (although I haven't tested it), but I see 
Mike has pushed this one.

Any comments?

/Kim


------------------------------------------------------------------------------
_______________________________________________
enlightenment-devel mailing list
enlightenment-devel@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/enlightenment-devel

Reply via email to