[Qemu-devel] [PATCH 29/29] vmsvga: Don't allow setting screen size with zero width or height

[Liran Alon]

From: Leonid Shatz <leonid.sh...@oracle.com>

Signed-off-by: Leonid Shatz <leonid.sh...@oracle.com>
Reviewed-by: Darren Kenny <darren.ke...@oracle.com>
Signed-off-by: Liran Alon <liran.a...@oracle.com>
---
 hw/display/vmware_vga.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/hw/display/vmware_vga.c b/hw/display/vmware_vga.c
index 389248b4badf..1803a565fa07 100644
--- a/hw/display/vmware_vga.c
+++ b/hw/display/vmware_vga.c
@@ -1566,6 +1566,9 @@ static inline void vmsvga_check_size(struct 
vmsvga_state_s *s)
     DisplaySurface *surface = qemu_console_surface(s->vga.con);
     uint32_t new_stride;
 
+    /* Don't allow setting uninitialized 0-size screen */
+    if ((s->new_width == 0) || (s->new_height == 0)) return;
+
     new_stride = (s->use_pitchlock >= 0) ?
         s->pitchlock :
         ((s->new_depth * s->new_width) / 8);
-- 
1.9.1