This is CVE-2014-8106.
Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
---
hw/display/cirrus_vga.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/hw/display/cirrus_vga.c b/hw/display/cirrus_vga.c
index d54fb06..2725264 100644
--- a/hw/display/cirrus_vga.c
+++ b/hw/display/cirrus_vga.c
@@ -293,6 +293,10 @@ static bool blit_is_unsafe(struct CirrusVGAState *s)
assert(s->cirrus_blt_width > 0);
assert(s->cirrus_blt_height > 0);
+ if (s->cirrus_blt_width > CIRRUS_BLTBUFSIZE) {
+ return true;
+ }
+
if (blit_region_is_unsafe(s, s->cirrus_blt_dstpitch,
s->cirrus_blt_dstaddr & s->cirrus_addr_mask)) {
return true;
--
1.8.3.1
