[cairo] [PATCH] image: prevent invalid ptr access for > 4GB images
ajohnson at redneon.com
Thu Jun 15 12:05:33 UTC 2017
As the maximum image width is 32767 I don't see how this could overflow.
On 10/03/17 02:53, Petr Kobalíček wrote:
> Since `cairo_format_stride_for_width()` has no knowledge about the width
> it cannot return -1 in case that stride * height would overflow. I think
> this must be checked.
> On Thu, Mar 9, 2017 at 12:01 PM, Adrian Johnson <ajohnson at redneon.com
> <mailto:ajohnson at redneon.com>> wrote:
> I wrote this patch  for bug 98165 last year. I found it is also
> needed to fix a poppler bug . Any objections to pushing it?
>  https://bugs.freedesktop.org/show_bug.cgi?id=98165#c6
>  https://bugs.freedesktop.org/show_bug.cgi?id=100056
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> cairo at cairographics.org <mailto:cairo at cairographics.org>
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