File libvirt-qemu-Avoid-overflow-when-setting-migration-speed.patch of Package libvirt

From 1573fe9d89347b41a4457eb1532ec49614e83c9f Mon Sep 17 00:00:00 2001
Message-Id: <1573fe9d89347b41a4457eb1532ec49614e83c9f@dist-git>
From: Jiri Denemark <jdenemar@redhat.com>
Date: Fri, 25 Apr 2014 16:35:37 +0200
Subject: [PATCH] qemu: Avoid overflow when setting migration speed

When passing migration bandwidth to QEMU, we multiply it by 1024 * 1024
to convert the speed to B/s and the result still needs to fit in
int64_t.

https://bugzilla.redhat.com/show_bug.cgi?id=1083483

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
(cherry picked from commit c4206d7c7e2c82bcdabd8a7548e14c48cdab4e14)
---
 src/qemu/qemu_monitor.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c
index f2b30f7..15d027a 100644
--- a/src/qemu/qemu_monitor.c
+++ b/src/qemu/qemu_monitor.c
@@ -31,6 +31,7 @@
 #include "qemu_monitor.h"
 #include "qemu_monitor_text.h"
 #include "qemu_monitor_json.h"
+#include "qemu_domain.h"
 #include "virterror_internal.h"
 #include "memory.h"
 #include "logging.h"
@@ -1839,6 +1840,13 @@ int qemuMonitorSetMigrationSpeed(qemuMonitorPtr mon,
         return -1;
     }
 
+    if (bandwidth > QEMU_DOMAIN_MIG_BANDWIDTH_MAX) {
+        virReportError(VIR_ERR_OVERFLOW,
+                       _("bandwidth must be less than %llu"),
+                       QEMU_DOMAIN_MIG_BANDWIDTH_MAX + 1ULL);
+        return -1;
+    }
+
     if (mon->json)
         ret = qemuMonitorJSONSetMigrationSpeed(mon, bandwidth);
     else
-- 
1.9.2