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--- lib/libvmmapi/vmmapi.c.orig
+++ lib/libvmmapi/vmmapi.c
@@ -263,12 +263,14 @@
/* XXX VM_MMAP_SPARSE not implemented yet */
assert(ctx->vms == VM_MMAP_ALL);
- if (gaddr < ctx->lowmem && gaddr + len <= ctx->lowmem)
+ if (gaddr < ctx->lowmem && len <= ctx->lowmem &&
+ gaddr + len <= ctx->lowmem)
return ((void *)(ctx->lowmem_addr + gaddr));
if (gaddr >= 4*GB) {
gaddr -= 4*GB;
- if (gaddr < ctx->highmem && gaddr + len <= ctx->highmem)
+ if (gaddr < ctx->highmem && len <= ctx->highmem &&
+ gaddr + len <= ctx->highmem)
return ((void *)(ctx->highmem_addr + gaddr));
}
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