Re: [Qemu-devel] [PULL 1/1] vga: fix region calculation

2018-03-13 Thread Mark Kanda
On 3/12/2018 5:59 AM, Gerd Hoffmann wrote: Typically the scanline length and the line offset are identical. But in case they are not our calculation for region_end is incorrect. Using line_offset is fine for all scanlines, except the last one where we have to use the actual scanline length. Fi

[Qemu-devel] [PULL 1/1] vga: fix region calculation

2018-03-12 Thread Gerd Hoffmann
Typically the scanline length and the line offset are identical. But in case they are not our calculation for region_end is incorrect. Using line_offset is fine for all scanlines, except the last one where we have to use the actual scanline length. Fixes: CVE-2018-7550 Reported-by: Ross Lagerwal