f375e62ad9
Fix libvirt + seccomp combo (bz #855162) Fix scsi hotplug crash (bz #879657) Fix QOM refcount crash (bz #881486)
49 lines
1.8 KiB
Diff
49 lines
1.8 KiB
Diff
From eaea06c56ee6569bbd6864a6f767160a74c9c65d Mon Sep 17 00:00:00 2001
|
|
From: Michael Tokarev <mjt@tls.msk.ru>
|
|
Date: Wed, 19 Sep 2012 17:41:26 +0400
|
|
Subject: [PATCH] qxl/update_area_io: cleanup invalid parameters handling
|
|
|
|
This cleans up two additions of almost the same code in commits
|
|
511b13e2c9 and ccc2960d654. While at it, make error paths
|
|
consistent (always use 'break' instead of 'return').
|
|
|
|
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
|
|
Cc: Dunrong Huang <riegamaths@gmail.com>
|
|
Cc: Alon Levy <alevy@redhat.com>
|
|
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
|
|
---
|
|
hw/qxl.c | 13 +++----------
|
|
1 file changed, 3 insertions(+), 10 deletions(-)
|
|
|
|
diff --git a/hw/qxl.c b/hw/qxl.c
|
|
index 1aac04b..6b9d5d0 100644
|
|
--- a/hw/qxl.c
|
|
+++ b/hw/qxl.c
|
|
@@ -1547,20 +1547,13 @@ async_common:
|
|
if (d->ram->update_surface > d->ssd.num_surfaces) {
|
|
qxl_set_guest_bug(d, "QXL_IO_UPDATE_AREA: invalid surface id %d\n",
|
|
d->ram->update_surface);
|
|
- return;
|
|
+ break;
|
|
}
|
|
- if (update.left >= update.right || update.top >= update.bottom) {
|
|
+ if (update.left >= update.right || update.top >= update.bottom ||
|
|
+ update.left < 0 || update.top < 0) {
|
|
qxl_set_guest_bug(d,
|
|
"QXL_IO_UPDATE_AREA: invalid area (%ux%u)x(%ux%u)\n",
|
|
update.left, update.top, update.right, update.bottom);
|
|
- return;
|
|
- }
|
|
-
|
|
- 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) {
|
|
--
|
|
1.8.0.2
|
|
|