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vmware-vga: CVE-2014-3689: turn off hw accel 

Quick & easy stopgap for CVE-2014-3689:  We just compile out the
hardware acceleration functions which lack sanity checks.  Thankfully
we have capability bits for them (SVGA_CAP_RECT_COPY and
SVGA_CAP_RECT_FILL), so guests should deal just fine, in theory.

Subsequent patches will add the missing checks and re-enable the
hardware acceleration emulation.

Cc: qemu-stable@nongnu.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Don Koch <dkoch@verizon.com>
This commit is contained in:
Gerd Hoffmann 2014-10-06 11:42:34 +02:00
parent 3e9418e160
commit 83afa38eb2
1 changed files with 2 additions and 0 deletions
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2
hw/display/vmware_vga.c
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@ -29,8 +29,10 @@
#include "hw/pci/pci.h"
#undef VERBOSE
#if 0
#define HW_RECT_ACCEL
#define HW_FILL_ACCEL
#endif
#define HW_MOUSE_ACCEL
#include "vga_int.h"