diff --git a/kernelmq/process.c b/kernelmq/process.c
index f80bfda..1858998 100644
--- a/kernelmq/process.c
+++ b/kernelmq/process.c
@@ -71,6 +71,10 @@ enum KernelMQ_Process_Error KernelMQ_Process_create_from_kernel(
             return KERNELMQ_PROCESS_ERROR_ADDR_TOO_BIG;
         }
 
+        if (base + size - 1 != limit) {
+            return KERNELMQ_PROCESS_ERROR_INVALID_AREA;
+        }
+
         process->areas[area_index].base  = base;
         process->areas[area_index].size  = size;
         process->areas[area_index].limit = limit;
@@ -108,6 +112,10 @@ enum KernelMQ_Process_Error KernelMQ_Process_create_from_module(
         return KERNELMQ_PROCESS_ERROR_ADDR_TOO_BIG;
     }
 
+    if (base + size - 1 != limit) {
+        return KERNELMQ_PROCESS_ERROR_INVALID_AREA;
+    }
+
     process->areas[0].base  = base;
     process->areas[0].size  = size;
     process->areas[0].limit = limit;
diff --git a/kernelmq/process.h b/kernelmq/process.h
index 4860e6a..9480830 100644
--- a/kernelmq/process.h
+++ b/kernelmq/process.h
@@ -18,8 +18,9 @@ enum KernelMQ_Process_Error {
     KERNELMQ_PROCESS_ERROR_OK = 0,
     KERNELMQ_PROCESS_ERROR_CMDLINE_TOO_LONG = 1,
     KERNELMQ_PROCESS_ERROR_ADDR_TOO_BIG = 2,
-    KERNELMQ_PROCESS_ERROR_KERNEL_AREAS_LENGTH_TOO_LONG = 3,
-    KERNELMQ_PROCESS_ERROR_MODULES_TOO_MANY = 4,
+    KERNELMQ_PROCESS_ERROR_INVALID_AREA = 3,
+    KERNELMQ_PROCESS_ERROR_KERNEL_AREAS_LENGTH_TOO_LONG = 4,
+    KERNELMQ_PROCESS_ERROR_MODULES_TOO_MANY = 5,
 };
 
 enum KernelMQ_Process_CreatedFrom {