From: Dunrong Huang <riegamaths@xxxxxxxxx>
This patch fixes the following error:
$ ~/usr/bin/qemu-system-x86_64 -enable-kvm -m 1024 -spice port=5900,disable-ticketing -vga qxl -cdrom ~/Images/linuxmint-13-mate-dvd-32bit.iso
(/home/mathslinux/usr/bin/qemu-system-x86_64:10068): SpiceWorker-CRITICAL **: red_worker.c:4599:red_update_area: condition `area->left >= 0 && area->top >= 0 && area->left < area->right && area->top < area->bottom' failed
Aborted
spice server terminates QEMU process if we pass invalid area to it,
so dont update those invalid areas.
Signed-off-by: Dunrong Huang <riegamaths@xxxxxxxxx>
---
hw/qxl.c | 7 +++++++
1 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/hw/qxl.c b/hw/qxl.c
index c2dd3b4..10e6bb3 100644
--- a/hw/qxl.c
+++ b/hw/qxl.c
@@ -1385,6 +1385,13 @@ async_common:
QXLCookie *cookie = NULL;
QXLRect update = d->ram->update_area;
+ if (update.left < 0 || update.top < 0 || update.left >= update.right ||
+ update.top >= update.bottom) {
+ qxl_set_guest_bug(d, "QXL_IO_UPDATE_AREA: "
+ "invalid area(%d,%d,%d,%d)\n", update.left,
+ update.right, update.top, update.bottom);
+ break;
+ }
if (async == QXL_ASYNC) {
cookie = qxl_cookie_new(QXL_COOKIE_TYPE_IO,
QXL_IO_UPDATE_AREA_ASYNC);
--
1.7.8.6
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