[Xen-devel] [PATCH 4/5] HVM: prevent leaking heap data from hvm_save_one()

["Jan Beulich" <JBeulich@xxxxxxxx>]

When one or more of the vCPU-s of a guest are offline, no data may be
put into the allocated space for them and, due to another bug, such
uninitialized data may be passed back to the caller.

Signed-off-by: Don Slutz <dslutz@xxxxxxxxxxx>
Acked-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>

--- a/xen/common/hvm/save.c
+++ b/xen/common/hvm/save.c
@@ -102,7 +102,7 @@ int hvm_save_one(struct domain *d, uint1
         return -EINVAL;
 
     ctxt.size = sz;
-    ctxt.data = xmalloc_bytes(sz);
+    ctxt.data = xzalloc_bytes(sz);
     if ( !ctxt.data )
         return -ENOMEM;
 




_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxx
http://lists.xen.org/xen-devel