[Qemu-devel] [PULL 11/15] spapr: fix possible Negative array index read

[Paolo Bonzini]

From: Gonglei <address@hidden>

fix CID 1351391.

Signed-off-by: Gonglei <address@hidden>
Message-Id: <address@hidden>
Signed-off-by: Paolo Bonzini <address@hidden>
---
 hw/ppc/spapr.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/hw/ppc/spapr.c b/hw/ppc/spapr.c
index e7be21e..feaab08 100644
--- a/hw/ppc/spapr.c
+++ b/hw/ppc/spapr.c
@@ -2208,6 +2208,10 @@ static void spapr_machine_device_plug(HotplugHandler 
*hotplug_dev,
         if (*errp) {
             return;
         }
+        if (node < 0 || node >= MAX_NODES) {
+            error_setg(errp, "Invaild node %d", node);
+            return;
+        }
 
         /*
          * Currently PowerPC kernel doesn't allow hot-adding memory to
-- 
2.5.5