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--- lib/libvmmapi/vmmapi.c.orig
+++ lib/libvmmapi/vmmapi.c
@@ -426,13 +426,18 @@
{
if (ctx->lowmem > 0) {
- if (gaddr < ctx->lowmem && gaddr + len <= ctx->lowmem)
+ if (gaddr < ctx->lowmem && len <= ctx->lowmem &&
+ gaddr + len <= ctx->lowmem)
return (ctx->baseaddr + gaddr);
}
if (ctx->highmem > 0) {
- if (gaddr >= 4*GB && gaddr + len <= 4*GB + ctx->highmem)
- return (ctx->baseaddr + gaddr);
+ if (gaddr >= 4*GB) {
+ if (gaddr < 4*GB + ctx->highmem &&
+ len <= ctx->highmem &&
+ gaddr + len <= 4*GB + ctx->highmem)
+ return (ctx->baseaddr + gaddr);
+ }
}
return (NULL);
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