Re: [Qemu-devel] [PATCH v2] vga: stop passing pointers to vga_draw_line* functions

2017-10-09 Thread David Buchanan
I might be mistaken, but I don't think this patch actually fixes CVE-2017-13672. I tested the latest git repo (last commit 530049bc1d) against my initial reproducer, and QEMU still segfaults. I think this is because the actual OOB read occurs inside pixman, which of course is not affected by this

Re: [Qemu-devel] [PATCH v2] vga: stop passing pointers to vga_draw_line* functions

2017-10-09 Thread David Buchanan
On 09/10/17 13:56, Gerd Hoffmann wrote: > How do you start > qemu? Which user interface? Like this: qemu-system-x86_64 -vga cirrus [disk image] (which I assume is using the GTK interface) I have attached the reproducer NASM source and disk image. Note that the reproducer is using VBE. > Have y