diff --git a/specification/json/common/cper-json-error-status.json b/specification/json/common/cper-json-error-status.json
index 592354f..d46d771 100644
--- a/specification/json/common/cper-json-error-status.json
+++ b/specification/json/common/cper-json-error-status.json
@@ -18,6 +18,7 @@
             "type": "object",
             "description": "Encoded value for the Error_Type",
             "required": ["name", "value"],
+            "additionalProperties": false,
             "properties": {
                 "name": {
                     "type": "string"
diff --git a/specification/json/cper-json-header.json b/specification/json/cper-json-header.json
index d031d2f..54b8764 100644
--- a/specification/json/cper-json-header.json
+++ b/specification/json/cper-json-header.json
@@ -20,6 +20,7 @@
             "type": "object",
             "description": "This is a 2-byte field representing a major and minor version number for the error record definition in BCD format. ",
             "required": ["major", "minor"],
+            "additionalProperties": false,
             "properties": {
                 "major": {
                     "type": "integer",
@@ -40,6 +41,7 @@
             "type": "object",
             "description": "Indicates the severity of the error condition. The severity of the error record corresponds to the most severe error section.",
             "required": ["name", "code"],
+            "additionalProperties": false,
             "properties": {
                 "name": {
                     "type": "string"
@@ -79,6 +81,7 @@
             "type": "object",
             "description": "This field holds a pre-assigned GUID value indicating the record association with an error event notification type.",
             "required": ["guid", "type"],
+            "additionalProperties": false,
             "properties": {
                 "guid": {
                     "type": "string",
diff --git a/specification/json/cper-json-section-descriptor.json b/specification/json/cper-json-section-descriptor.json
index d9c101c..878efe1 100644
--- a/specification/json/cper-json-section-descriptor.json
+++ b/specification/json/cper-json-section-descriptor.json
@@ -25,6 +25,7 @@
             "type": "object",
             "description": "This is a 2-byte field representing a major and minor version number for the error record definition in BCD format.",
             "required": ["major", "minor"],
+            "additionalProperties": false,
             "properties": {
                 "major": {
                     "type": "integer",
@@ -38,6 +39,7 @@
         },
         "flags": {
             "type": "object",
+            "additionalProperties": false,
             "required": [
                 "primary",
                 "containmentWarning",
@@ -87,6 +89,7 @@
             "type": "object",
             "description": "This field holds a pre-assigned GUID value indicating that it is a section of a particular error.",
             "required": ["data", "type"],
+            "additionalProperties": false,
             "properties": {
                 "data": {
                     "type": "string",
@@ -105,6 +108,7 @@
             "type": "object",
             "description": "This field indicates the severity associated with the error section.",
             "required": ["code", "name"],
+            "additionalProperties": false,
             "properties": {
                 "code": {
                     "type": "integer",
diff --git a/specification/json/cper-json-section-log.json b/specification/json/cper-json-section-log.json
index d8d9239..225e3e6 100644
--- a/specification/json/cper-json-section-log.json
+++ b/specification/json/cper-json-section-log.json
@@ -13,6 +13,7 @@
             "type": "object",
             "minProperties": 1,
             "maxProperties": 1,
+            "additionalProperties": false,
             "properties": {
                 "GenericProcessor": {
                     "$ref": "./sections/cper-generic-processor.json"
diff --git a/specification/json/sections/cper-arm-processor.json b/specification/json/sections/cper-arm-processor.json
index 50895f9..d9e4cb1 100644
--- a/specification/json/sections/cper-arm-processor.json
+++ b/specification/json/sections/cper-arm-processor.json
@@ -19,6 +19,7 @@
         },
         "errorAffinity": {
             "type": "object",
+            "additionalProperties": false,
             "description": "For errors that can be attributed to a specific affinity level, this field defines the affinity level at which the error was produced, detected, and/or consumed",
             "required": ["value", "type"],
             "properties": {
@@ -78,6 +79,7 @@
                     },
                     "flags": {
                         "type": "object",
+                        "additionalProperties": false,
                         "required": [
                             "firstErrorCaptured",
                             "lastErrorCaptured",
@@ -101,143 +103,119 @@
                     },
                     "errorInformation": {
                         "type": "object",
-                        "oneOf": [
-                            {
-                                "$id": "cper-json-cacheerror-section",
+                        "additionalProperties": false,
+                        "minProperties": 1,
+                        "maxProperties": 1,
+                        "properties": {
+                            "cacheError": {
                                 "type": "object",
-                                "required": ["cacheError"],
+                                "required": [],
+                                "additionalProperties": false,
                                 "properties": {
-                                    "cacheError": {
+                                    "transactionType": {
                                         "type": "object",
-                                        "required": [],
-                                        "additionalProperties": false,
-                                        "properties": {
-                                            "transactionType": {
-                                                "type": "object",
-                                                "$ref": "./common/cper-json-nvp.json"
-                                            },
-                                            "operation": {
-                                                "type": "object",
-                                                "$ref": "./common/cper-json-nvp.json"
-                                            },
-                                            "level": {
-                                                "type": "integer"
-                                            },
-                                            "processorContextCorrupt": {
-                                                "type": "boolean"
-                                            },
-                                            "corrected": {
-                                                "type": "boolean"
-                                            },
-                                            "precisePC": {
-                                                "type": "boolean"
-                                            },
-                                            "restartablePC": {
-                                                "type": "boolean"
-                                            }
-                                        }
+                                        "$ref": "./common/cper-json-nvp.json"
+                                    },
+                                    "operation": {
+                                        "type": "object",
+                                        "$ref": "./common/cper-json-nvp.json"
+                                    },
+                                    "level": {
+                                        "type": "integer"
+                                    },
+                                    "processorContextCorrupt": {
+                                        "type": "boolean"
+                                    },
+                                    "corrected": {
+                                        "type": "boolean"
+                                    },
+                                    "precisePC": {
+                                        "type": "boolean"
+                                    },
+                                    "restartablePC": {
+                                        "type": "boolean"
                                     }
                                 }
                             },
-                            {
-                                "$id": "cper-json-tlberror-section",
+                            "tlbError": {
                                 "type": "object",
-                                "required": ["tlbError"],
+                                "required": [],
+                                "additionalProperties": false,
                                 "properties": {
-                                    "tlbError": {
+                                    "transactionType": {
                                         "type": "object",
-                                        "required": [],
-                                        "additionalProperties": false,
-                                        "properties": {
-                                            "transactionType": {
-                                                "type": "object",
-                                                "$ref": "./common/cper-json-nvp.json"
-                                            },
-                                            "operation": {
-                                                "type": "object",
-                                                "$ref": "./common/cper-json-nvp.json"
-                                            },
-                                            "level": {
-                                                "type": "integer"
-                                            },
-                                            "processorContextCorrupt": {
-                                                "type": "boolean"
-                                            },
-                                            "corrected": {
-                                                "type": "boolean"
-                                            },
-                                            "precisePC": {
-                                                "type": "boolean"
-                                            },
-                                            "restartablePC": {
-                                                "type": "boolean"
-                                            }
-                                        }
+                                        "$ref": "./common/cper-json-nvp.json"
+                                    },
+                                    "operation": {
+                                        "type": "object",
+                                        "$ref": "./common/cper-json-nvp.json"
+                                    },
+                                    "level": {
+                                        "type": "integer"
+                                    },
+                                    "processorContextCorrupt": {
+                                        "type": "boolean"
+                                    },
+                                    "corrected": {
+                                        "type": "boolean"
+                                    },
+                                    "precisePC": {
+                                        "type": "boolean"
+                                    },
+                                    "restartablePC": {
+                                        "type": "boolean"
                                     }
                                 }
                             },
-                            {
-                                "$id": "cper-json-buserror-section",
+                            "busError": {
                                 "type": "object",
-                                "required": ["busError"],
+                                "required": [],
+                                "additionalProperties": false,
                                 "properties": {
-                                    "busError": {
+                                    "transactionType": {
                                         "type": "object",
-                                        "required": [
-                                            "timedOut",
-                                            "participationType",
-                                            "addressSpace",
-                                            "memoryAttributes",
-                                            "accessMode"
-                                        ],
-                                        "additionalProperties": false,
-                                        "properties": {
-                                            "transactionType": {
-                                                "type": "object",
-                                                "$ref": "./common/cper-json-nvp.json"
-                                            },
-                                            "operation": {
-                                                "type": "object",
-                                                "$ref": "./common/cper-json-nvp.json"
-                                            },
-                                            "level": {
-                                                "type": "integer"
-                                            },
-                                            "processorContextCorrupt": {
-                                                "type": "boolean"
-                                            },
-                                            "corrected": {
-                                                "type": "boolean"
-                                            },
-                                            "precisePC": {
-                                                "type": "boolean"
-                                            },
-                                            "restartablePC": {
-                                                "type": "boolean"
-                                            },
-                                            "timedOut": {
-                                                "type": "boolean"
-                                            },
-                                            "participationType": {
-                                                "type": "object",
-                                                "$ref": "./common/cper-json-nvp.json"
-                                            },
-                                            "addressSpace": {
-                                                "type": "object",
-                                                "$ref": "./common/cper-json-nvp.json"
-                                            },
-                                            "accessMode": {
-                                                "type": "object",
-                                                "$ref": "./common/cper-json-nvp.json"
-                                            },
-                                            "memoryAttributes": {
-                                                "type": "integer"
-                                            }
-                                        }
+                                        "$ref": "./common/cper-json-nvp.json"
+                                    },
+                                    "operation": {
+                                        "type": "object",
+                                        "$ref": "./common/cper-json-nvp.json"
+                                    },
+                                    "level": {
+                                        "type": "integer"
+                                    },
+                                    "processorContextCorrupt": {
+                                        "type": "boolean"
+                                    },
+                                    "corrected": {
+                                        "type": "boolean"
+                                    },
+                                    "precisePC": {
+                                        "type": "boolean"
+                                    },
+                                    "restartablePC": {
+                                        "type": "boolean"
+                                    },
+                                    "timedOut": {
+                                        "type": "boolean"
+                                    },
+                                    "participationType": {
+                                        "type": "object",
+                                        "$ref": "./common/cper-json-nvp.json"
+                                    },
+                                    "addressSpace": {
+                                        "type": "object",
+                                        "$ref": "./common/cper-json-nvp.json"
+                                    },
+                                    "accessMode": {
+                                        "type": "object",
+                                        "$ref": "./common/cper-json-nvp.json"
+                                    },
+                                    "memoryAttributes": {
+                                        "type": "integer"
                                     }
                                 }
                             }
-                        ]
+                        }
                     },
                     "virtualFaultAddress": {
                         "type": "integer"
@@ -277,6 +255,7 @@
                             {
                                 "$id": "cper-json-registerarray0",
                                 "type": "object",
+                                "additionalProperties": false,
                                 "required": [
                                     "r1",
                                     "r2",
@@ -295,27 +274,60 @@
                                     "r15_pc"
                                 ],
                                 "properties": {
-                                    "r0": { "type": "integer" },
-                                    "r1": { "type": "integer" },
-                                    "r2": { "type": "integer" },
-                                    "r3": { "type": "integer" },
-                                    "r4": { "type": "integer" },
-                                    "r5": { "type": "integer" },
-                                    "r6": { "type": "integer" },
-                                    "r7": { "type": "integer" },
-                                    "r8": { "type": "integer" },
-                                    "r9": { "type": "integer" },
-                                    "r10": { "type": "integer" },
-                                    "r11": { "type": "integer" },
-                                    "r12": { "type": "integer" },
-                                    "r13_sp": { "type": "integer" },
-                                    "r14_lr": { "type": "integer" },
-                                    "r15_pc": { "type": "integer" }
+                                    "r0": {
+                                        "type": "integer"
+                                    },
+                                    "r1": {
+                                        "type": "integer"
+                                    },
+                                    "r2": {
+                                        "type": "integer"
+                                    },
+                                    "r3": {
+                                        "type": "integer"
+                                    },
+                                    "r4": {
+                                        "type": "integer"
+                                    },
+                                    "r5": {
+                                        "type": "integer"
+                                    },
+                                    "r6": {
+                                        "type": "integer"
+                                    },
+                                    "r7": {
+                                        "type": "integer"
+                                    },
+                                    "r8": {
+                                        "type": "integer"
+                                    },
+                                    "r9": {
+                                        "type": "integer"
+                                    },
+                                    "r10": {
+                                        "type": "integer"
+                                    },
+                                    "r11": {
+                                        "type": "integer"
+                                    },
+                                    "r12": {
+                                        "type": "integer"
+                                    },
+                                    "r13_sp": {
+                                        "type": "integer"
+                                    },
+                                    "r14_lr": {
+                                        "type": "integer"
+                                    },
+                                    "r15_pc": {
+                                        "type": "integer"
+                                    }
                                 }
                             },
                             {
                                 "$id": "cper-json-registerarray1",
                                 "type": "object",
+                                "additionalProperties": false,
                                 "required": [
                                     "dfar",
                                     "dfsr",
@@ -343,35 +355,84 @@
                                     "dacr"
                                 ],
                                 "properties": {
-                                    "dfar": { "type": "integer" },
-                                    "dfsr": { "type": "integer" },
-                                    "ifar": { "type": "integer" },
-                                    "isr": { "type": "integer" },
-                                    "mair0": { "type": "integer" },
-                                    "mair1": { "type": "integer" },
-                                    "midr": { "type": "integer" },
-                                    "mpidr": { "type": "integer" },
-                                    "nmrr": { "type": "integer" },
-                                    "prrr": { "type": "integer" },
-                                    "sctlr_ns": { "type": "integer" },
-                                    "spsr": { "type": "integer" },
-                                    "spsr_abt": { "type": "integer" },
-                                    "spsr_fiq": { "type": "integer" },
-                                    "spsr_irq": { "type": "integer" },
-                                    "spsr_svc": { "type": "integer" },
-                                    "spsr_und": { "type": "integer" },
-                                    "tpidrprw": { "type": "integer" },
-                                    "tpidruro": { "type": "integer" },
-                                    "tpidrurw": { "type": "integer" },
-                                    "ttbcr": { "type": "integer" },
-                                    "ttbr0": { "type": "integer" },
-                                    "ttbr1": { "type": "integer" },
-                                    "dacr": { "type": "integer" }
+                                    "dfar": {
+                                        "type": "integer"
+                                    },
+                                    "dfsr": {
+                                        "type": "integer"
+                                    },
+                                    "ifar": {
+                                        "type": "integer"
+                                    },
+                                    "isr": {
+                                        "type": "integer"
+                                    },
+                                    "mair0": {
+                                        "type": "integer"
+                                    },
+                                    "mair1": {
+                                        "type": "integer"
+                                    },
+                                    "midr": {
+                                        "type": "integer"
+                                    },
+                                    "mpidr": {
+                                        "type": "integer"
+                                    },
+                                    "nmrr": {
+                                        "type": "integer"
+                                    },
+                                    "prrr": {
+                                        "type": "integer"
+                                    },
+                                    "sctlr_ns": {
+                                        "type": "integer"
+                                    },
+                                    "spsr": {
+                                        "type": "integer"
+                                    },
+                                    "spsr_abt": {
+                                        "type": "integer"
+                                    },
+                                    "spsr_fiq": {
+                                        "type": "integer"
+                                    },
+                                    "spsr_irq": {
+                                        "type": "integer"
+                                    },
+                                    "spsr_svc": {
+                                        "type": "integer"
+                                    },
+                                    "spsr_und": {
+                                        "type": "integer"
+                                    },
+                                    "tpidrprw": {
+                                        "type": "integer"
+                                    },
+                                    "tpidruro": {
+                                        "type": "integer"
+                                    },
+                                    "tpidrurw": {
+                                        "type": "integer"
+                                    },
+                                    "ttbcr": {
+                                        "type": "integer"
+                                    },
+                                    "ttbr0": {
+                                        "type": "integer"
+                                    },
+                                    "ttbr1": {
+                                        "type": "integer"
+                                    },
+                                    "dacr": {
+                                        "type": "integer"
+                                    }
                                 }
                             },
                             {
                                 "$id": "cper-json-registerarray2",
                                 "type": "object",
+                                "additionalProperties": false,
                                 "required": [
                                     "elr_hyp",
                                     "hamair0",
@@ -391,36 +452,74 @@
                                     "dacr32_el2"
                                 ],
                                 "properties": {
-                                    "elr_hyp": { "type": "integer" },
-                                    "hamair0": { "type": "integer" },
-                                    "hamair1": { "type": "integer" },
-                                    "hcr": { "type": "integer" },
-                                    "hcr2": { "type": "integer" },
-                                    "hdfar": { "type": "integer" },
-                                    "hifar": { "type": "integer" },
-                                    "hpfar": { "type": "integer" },
-                                    "hsr": { "type": "integer" },
-                                    "htcr": { "type": "integer" },
-                                    "htpidr": { "type": "integer" },
-                                    "httbr": { "type": "integer" },
-                                    "spsr_hyp": { "type": "integer" },
-                                    "vtcr": { "type": "integer" },
-                                    "vttbr": { "type": "integer" },
-                                    "dacr32_el2": { "type": "integer" }
+                                    "elr_hyp": {
+                                        "type": "integer"
+                                    },
+                                    "hamair0": {
+                                        "type": "integer"
+                                    },
+                                    "hamair1": {
+                                        "type": "integer"
+                                    },
+                                    "hcr": {
+                                        "type": "integer"
+                                    },
+                                    "hcr2": {
+                                        "type": "integer"
+                                    },
+                                    "hdfar": {
+                                        "type": "integer"
+                                    },
+                                    "hifar": {
+                                        "type": "integer"
+                                    },
+                                    "hpfar": {
+                                        "type": "integer"
+                                    },
+                                    "hsr": {
+                                        "type": "integer"
+                                    },
+                                    "htcr": {
+                                        "type": "integer"
+                                    },
+                                    "htpidr": {
+                                        "type": "integer"
+                                    },
+                                    "httbr": {
+                                        "type": "integer"
+                                    },
+                                    "spsr_hyp": {
+                                        "type": "integer"
+                                    },
+                                    "vtcr": {
+                                        "type": "integer"
+                                    },
+                                    "vttbr": {
+                                        "type": "integer"
+                                    },
+                                    "dacr32_el2": {
+                                        "type": "integer"
+                                    }
                                 }
                             },
                             {
                                 "$id": "cper-json-registerarray3",
                                 "type": "object",
+                                "additionalProperties": false,
                                 "required": ["sctlr_s", "spsr_mon"],
                                 "properties": {
-                                    "sctlr_s": { "type": "integer" },
-                                    "spsr_mon": { "type": "integer" }
+                                    "sctlr_s": {
+                                        "type": "integer"
+                                    },
+                                    "spsr_mon": {
+                                        "type": "integer"
+                                    }
                                 }
                             },
                             {
                                 "$id": "cper-json-registerarray4",
                                 "type": "object",
+                                "additionalProperties": false,
                                 "required": [
                                     "x0",
                                     "x1",
@@ -456,43 +555,108 @@
                                     "sp"
                                 ],
                                 "properties": {
-                                    "x0": { "type": "integer" },
-                                    "x1": { "type": "integer" },
-                                    "x2": { "type": "integer" },
-                                    "x3": { "type": "integer" },
-                                    "x4": { "type": "integer" },
-                                    "x5": { "type": "integer" },
-                                    "x6": { "type": "integer" },
-                                    "x7": { "type": "integer" },
-                                    "x8": { "type": "integer" },
-                                    "x9": { "type": "integer" },
-                                    "x10": { "type": "integer" },
-                                    "x11": { "type": "integer" },
-                                    "x12": { "type": "integer" },
-                                    "x13": { "type": "integer" },
-                                    "x14": { "type": "integer" },
-                                    "x15": { "type": "integer" },
-                                    "x16": { "type": "integer" },
-                                    "x17": { "type": "integer" },
-                                    "x18": { "type": "integer" },
-                                    "x19": { "type": "integer" },
-                                    "x20": { "type": "integer" },
-                                    "x21": { "type": "integer" },
-                                    "x22": { "type": "integer" },
-                                    "x23": { "type": "integer" },
-                                    "x24": { "type": "integer" },
-                                    "x25": { "type": "integer" },
-                                    "x26": { "type": "integer" },
-                                    "x27": { "type": "integer" },
-                                    "x28": { "type": "integer" },
-                                    "x29": { "type": "integer" },
-                                    "x30": { "type": "integer" },
-                                    "sp": { "type": "integer" }
+                                    "x0": {
+                                        "type": "integer"
+                                    },
+                                    "x1": {
+                                        "type": "integer"
+                                    },
+                                    "x2": {
+                                        "type": "integer"
+                                    },
+                                    "x3": {
+                                        "type": "integer"
+                                    },
+                                    "x4": {
+                                        "type": "integer"
+                                    },
+                                    "x5": {
+                                        "type": "integer"
+                                    },
+                                    "x6": {
+                                        "type": "integer"
+                                    },
+                                    "x7": {
+                                        "type": "integer"
+                                    },
+                                    "x8": {
+                                        "type": "integer"
+                                    },
+                                    "x9": {
+                                        "type": "integer"
+                                    },
+                                    "x10": {
+                                        "type": "integer"
+                                    },
+                                    "x11": {
+                                        "type": "integer"
+                                    },
+                                    "x12": {
+                                        "type": "integer"
+                                    },
+                                    "x13": {
+                                        "type": "integer"
+                                    },
+                                    "x14": {
+                                        "type": "integer"
+                                    },
+                                    "x15": {
+                                        "type": "integer"
+                                    },
+                                    "x16": {
+                                        "type": "integer"
+                                    },
+                                    "x17": {
+                                        "type": "integer"
+                                    },
+                                    "x18": {
+                                        "type": "integer"
+                                    },
+                                    "x19": {
+                                        "type": "integer"
+                                    },
+                                    "x20": {
+                                        "type": "integer"
+                                    },
+                                    "x21": {
+                                        "type": "integer"
+                                    },
+                                    "x22": {
+                                        "type": "integer"
+                                    },
+                                    "x23": {
+                                        "type": "integer"
+                                    },
+                                    "x24": {
+                                        "type": "integer"
+                                    },
+                                    "x25": {
+                                        "type": "integer"
+                                    },
+                                    "x26": {
+                                        "type": "integer"
+                                    },
+                                    "x27": {
+                                        "type": "integer"
+                                    },
+                                    "x28": {
+                                        "type": "integer"
+                                    },
+                                    "x29": {
+                                        "type": "integer"
+                                    },
+                                    "x30": {
+                                        "type": "integer"
+                                    },
+                                    "sp": {
+                                        "type": "integer"
+                                    }
                                 }
                             },
                             {
                                 "$id": "cper-json-registerarray5",
                                 "type": "object",
+                                "additionalProperties": false,
                                 "required": [
                                     "elr_el1",
                                     "esr_el1",
@@ -513,28 +677,63 @@
                                     "ttbr1_el1"
                                 ],
                                 "properties": {
-                                    "elr_el1": { "type": "integer" },
-                                    "esr_el1": { "type": "integer" },
-                                    "far_el1": { "type": "integer" },
-                                    "isr_el1": { "type": "integer" },
-                                    "mair_el1": { "type": "integer" },
-                                    "midr_el1": { "type": "integer" },
-                                    "mpidr_el1": { "type": "integer" },
-                                    "sctlr_el1": { "type": "integer" },
-                                    "sp_el0": { "type": "integer" },
-                                    "sp_el1": { "type": "integer" },
-                                    "spsr_el1": { "type": "integer" },
-                                    "tcr_el1": { "type": "integer" },
-                                    "tpidr_el0": { "type": "integer" },
-                                    "tpidr_el1": { "type": "integer" },
-                                    "tpidrro_el0": { "type": "integer" },
-                                    "ttbr0_el1": { "type": "integer" },
-                                    "ttbr1_el1": { "type": "integer" }
+                                    "elr_el1": {
+                                        "type": "integer"
+                                    },
+                                    "esr_el1": {
+                                        "type": "integer"
+                                    },
+                                    "far_el1": {
+                                        "type": "integer"
+                                    },
+                                    "isr_el1": {
+                                        "type": "integer"
+                                    },
+                                    "mair_el1": {
+                                        "type": "integer"
+                                    },
+                                    "midr_el1": {
+                                        "type": "integer"
+                                    },
+                                    "mpidr_el1": {
+                                        "type": "integer"
+                                    },
+                                    "sctlr_el1": {
+                                        "type": "integer"
+                                    },
+                                    "sp_el0": {
+                                        "type": "integer"
+                                    },
+                                    "sp_el1": {
+                                        "type": "integer"
+                                    },
+                                    "spsr_el1": {
+                                        "type": "integer"
+                                    },
+                                    "tcr_el1": {
+                                        "type": "integer"
+                                    },
+                                    "tpidr_el0": {
+                                        "type": "integer"
+                                    },
+                                    "tpidr_el1": {
+                                        "type": "integer"
+                                    },
+                                    "tpidrro_el0": {
+                                        "type": "integer"
+                                    },
+                                    "ttbr0_el1": {
+                                        "type": "integer"
+                                    },
+                                    "ttbr1_el1": {
+                                        "type": "integer"
+                                    }
                                 }
                             },
                             {
                                 "$id": "cper-json-registerarray6",
                                 "type": "object",
+                                "additionalProperties": false,
                                 "required": [
                                     "elr_el2",
                                     "esr_el2",
@@ -553,26 +752,57 @@
                                     "vttbr_el2"
                                 ],
                                 "properties": {
-                                    "elr_el2": { "type": "integer" },
-                                    "esr_el2": { "type": "integer" },
-                                    "far_el2": { "type": "integer" },
-                                    "hacr_el2": { "type": "integer" },
-                                    "hcr_el2": { "type": "integer" },
-                                    "hpfar_el2": { "type": "integer" },
-                                    "mair_el2": { "type": "integer" },
-                                    "sctlr_el2": { "type": "integer" },
-                                    "sp_el2": { "type": "integer" },
-                                    "spsr_el2": { "type": "integer" },
-                                    "tcr_el2": { "type": "integer" },
-                                    "tpidr_el2": { "type": "integer" },
-                                    "ttbr0_el2": { "type": "integer" },
-                                    "vtcr_el2": { "type": "integer" },
-                                    "vttbr_el2": { "type": "integer" }
+                                    "elr_el2": {
+                                        "type": "integer"
+                                    },
+                                    "esr_el2": {
+                                        "type": "integer"
+                                    },
+                                    "far_el2": {
+                                        "type": "integer"
+                                    },
+                                    "hacr_el2": {
+                                        "type": "integer"
+                                    },
+                                    "hcr_el2": {
+                                        "type": "integer"
+                                    },
+                                    "hpfar_el2": {
+                                        "type": "integer"
+                                    },
+                                    "mair_el2": {
+                                        "type": "integer"
+                                    },
+                                    "sctlr_el2": {
+                                        "type": "integer"
+                                    },
+                                    "sp_el2": {
+                                        "type": "integer"
+                                    },
+                                    "spsr_el2": {
+                                        "type": "integer"
+                                    },
+                                    "tcr_el2": {
+                                        "type": "integer"
+                                    },
+                                    "tpidr_el2": {
+                                        "type": "integer"
+                                    },
+                                    "ttbr0_el2": {
+                                        "type": "integer"
+                                    },
+                                    "vtcr_el2": {
+                                        "type": "integer"
+                                    },
+                                    "vttbr_el2": {
+                                        "type": "integer"
+                                    }
                                 }
                             },
                             {
                                 "$id": "cper-json-registerarray7",
                                 "type": "object",
+                                "additionalProperties": false,
                                 "required": [
                                     "elr_el3",
                                     "esr_el3",
@@ -586,16 +816,36 @@
                                     "ttbr0_el3"
                                 ],
                                 "properties": {
-                                    "elr_el3": { "type": "integer" },
-                                    "esr_el3": { "type": "integer" },
-                                    "far_el3": { "type": "integer" },
-                                    "mair_el3": { "type": "integer" },
-                                    "sctlr_el3": { "type": "integer" },
-                                    "sp_el3": { "type": "integer" },
-                                    "spsr_el3": { "type": "integer" },
-                                    "tcr_el3": { "type": "integer" },
-                                    "tpidr_el3": { "type": "integer" },
-                                    "ttbr0_el3": { "type": "integer" }
+                                    "elr_el3": {
+                                        "type": "integer"
+                                    },
+                                    "esr_el3": {
+                                        "type": "integer"
+                                    },
+                                    "far_el3": {
+                                        "type": "integer"
+                                    },
+                                    "mair_el3": {
+                                        "type": "integer"
+                                    },
+                                    "sctlr_el3": {
+                                        "type": "integer"
+                                    },
+                                    "sp_el3": {
+                                        "type": "integer"
+                                    },
+                                    "spsr_el3": {
+                                        "type": "integer"
+                                    },
+                                    "tcr_el3": {
+                                        "type": "integer"
+                                    },
+                                    "tpidr_el3": {
+                                        "type": "integer"
+                                    },
+                                    "ttbr0_el3": {
+                                        "type": "integer"
+                                    }
                                 }
                             },
                             {
@@ -614,11 +864,21 @@
                                             "o0"
                                         ],
                                         "properties": {
-                                            "op2": { "type": "integer" },
-                                            "crm": { "type": "integer" },
-                                            "crn": { "type": "integer" },
-                                            "op1": { "type": "integer" },
-                                            "o0": { "type": "integer" }
+                                            "op2": {
+                                                "type": "integer"
+                                            },
+                                            "crm": {
+                                                "type": "integer"
+                                            },
+                                            "crn": {
+                                                "type": "integer"
+                                            },
+                                            "op1": {
+                                                "type": "integer"
+                                            },
+                                            "o0": {
+                                                "type": "integer"
+                                            }
                                         }
                                     },
                                     "value": {
@@ -629,6 +889,7 @@
                             {
                                 "$id": "cper-json-registerarray9",
                                 "type": "object",
+                                "additionalProperties": false,
                                 "required": ["data"],
                                 "properties": {
                                     "data": {
diff --git a/specification/json/sections/cper-cxl-component.json b/specification/json/sections/cper-cxl-component.json
index fbefeef..e7c2990 100644
--- a/specification/json/sections/cper-cxl-component.json
+++ b/specification/json/sections/cper-cxl-component.json
@@ -11,6 +11,7 @@
         "deviceID": {
             "type": "object",
             "description": "Provides devices specific identifies.",
+            "additionalProperties": false,
             "required": [
                 "vendorID",
                 "deviceID",
@@ -49,6 +50,7 @@
         },
         "cxlComponentEventLog": {
             "type": "object",
+            "additionalProperties": false,
             "required": ["data"],
             "properties": {
                 "data": {
diff --git a/specification/json/sections/cper-cxl-protocol.json b/specification/json/sections/cper-cxl-protocol.json
index 82653c6..a216b01 100644
--- a/specification/json/sections/cper-cxl-protocol.json
+++ b/specification/json/sections/cper-cxl-protocol.json
@@ -17,6 +17,7 @@
                 {
                     "$id": "cper-json-cxlagentaddress0",
                     "type": "object",
+                    "additionalProperties": false,
                     "required": [
                         "functionNumber",
                         "deviceNumber",
@@ -41,6 +42,7 @@
                 {
                     "$id": "cper-json-cxlagentaddress1",
                     "type": "object",
+                    "additionalProperties": false,
                     "required": ["value"],
                     "properties": {
                         "value": {
@@ -53,6 +55,7 @@
         "deviceID": {
             "type": "object",
             "description": "Provides devices specific identifies.",
+            "additionalProperties": false,
             "required": [],
             "properties": {
                 "vendorID": {
diff --git a/specification/json/sections/cper-generic-dmar.json b/specification/json/sections/cper-generic-dmar.json
index 2075b3b..0a121c9 100644
--- a/specification/json/sections/cper-generic-dmar.json
+++ b/specification/json/sections/cper-generic-dmar.json
@@ -24,6 +24,7 @@
         "faultReason": {
             "type": "object",
             "required": ["value", "name"],
+            "additionalProperties": false,
             "properties": {
                 "value": {
                     "type": "integer"
diff --git a/specification/json/sections/cper-generic-processor.json b/specification/json/sections/cper-generic-processor.json
index bc29a95..46b9298 100644
--- a/specification/json/sections/cper-generic-processor.json
+++ b/specification/json/sections/cper-generic-processor.json
@@ -27,6 +27,7 @@
         },
         "flags": {
             "type": "object",
+            "additionalProperties": false,
             "description": "Indicates additional information about the error",
             "required": ["restartable", "preciseIP", "overflow", "corrected"],
             "properties": {
diff --git a/specification/json/sections/cper-ia32x64-processor.json b/specification/json/sections/cper-ia32x64-processor.json
index fd9a13e..371e19f 100644
--- a/specification/json/sections/cper-ia32x64-processor.json
+++ b/specification/json/sections/cper-ia32x64-processor.json
@@ -46,6 +46,7 @@
                 "properties": {
                     "type": {
                         "type": "object",
+                        "additionalProperties": false,
                         "required": ["guid", "name"],
                         "properties": {
                             "guid": {
diff --git a/specification/json/sections/cper-memory.json b/specification/json/sections/cper-memory.json
index 8b7179e..037ca26 100644
--- a/specification/json/sections/cper-memory.json
+++ b/specification/json/sections/cper-memory.json
@@ -17,6 +17,7 @@
                 {
                     "$id": "cper-json-bank0",
                     "type": "object",
+                    "additionalProperties": false,
                     "required": ["value"],
                     "properties": {
                         "value": {
@@ -27,6 +28,7 @@
                 {
                     "$id": "cper-json-bank1",
                     "type": "object",
+                    "additionalProperties": false,
                     "required": ["address", "group"],
                     "properties": {
                         "address": {
@@ -46,6 +48,7 @@
         },
         "extended": {
             "type": "object",
+            "additionalProperties": false,
             "required": ["rowBit16", "rowBit17"],
             "properties": {
                 "rowBit16": {
diff --git a/specification/json/sections/cper-memory2.json b/specification/json/sections/cper-memory2.json
index 379e55a..d4b0fc7 100644
--- a/specification/json/sections/cper-memory2.json
+++ b/specification/json/sections/cper-memory2.json
@@ -17,6 +17,7 @@
                 {
                     "$id": "cper-json-bank0",
                     "type": "object",
+                    "additionalProperties": false,
                     "required": ["value"],
                     "properties": {
                         "value": {
@@ -27,6 +28,7 @@
                 {
                     "$id": "cper-json-bank1",
                     "type": "object",
+                    "additionalProperties": false,
                     "required": ["address", "group"],
                     "properties": {
                         "address": {
@@ -47,6 +49,7 @@
         "status": {
             "type": "object",
             "description": "Memory error status information.",
+            "additionalProperties": false,
             "required": ["value", "state"],
             "properties": {
                 "value": {
diff --git a/specification/json/sections/cper-nvidia.json b/specification/json/sections/cper-nvidia.json
index 4ae4a40..ce36d47 100644
--- a/specification/json/sections/cper-nvidia.json
+++ b/specification/json/sections/cper-nvidia.json
@@ -3,7 +3,6 @@
     "type": "object",
     "description": "NVIDIA Processor Error Section",
     "required": [
-        "signature",
         "errorType",
         "errorInstance",
         "severity",
@@ -29,6 +28,7 @@
             "type": "object",
             "description": "Internal severity for firmware tracking. Use CPER section severity.",
             "required": ["code", "name"],
+            "additionalProperties": false,
             "properties": {
                 "code": {
                     "type": "integer",
@@ -56,6 +56,7 @@
             "description": "Address, value pairs for registers dumped during the error detection.",
             "items": {
                 "type": "object",
+                "additionalProperties": false,
                 "required": ["address", "value"],
                 "properties": {
                     "address": {
diff --git a/specification/json/sections/cper-pci-component.json b/specification/json/sections/cper-pci-component.json
index 65f3489..7275003 100644
--- a/specification/json/sections/cper-pci-component.json
+++ b/specification/json/sections/cper-pci-component.json
@@ -13,6 +13,7 @@
         "idInfo": {
             "type": "object",
             "description": "Identification Information",
+            "additionalProperties": false,
             "required": [
                 "vendorID",
                 "deviceID",
diff --git a/specification/json/sections/cper-pcie.json b/specification/json/sections/cper-pcie.json
index 2c2d42e..2f2b23c 100644
--- a/specification/json/sections/cper-pcie.json
+++ b/specification/json/sections/cper-pcie.json
@@ -25,6 +25,7 @@
         },
         "commandStatus": {
             "type": "object",
+            "additionalProperties": false,
             "required": ["commandRegister", "statusRegister"],
             "properties": {
                 "commandRegister": {
@@ -39,6 +40,7 @@
         },
         "deviceID": {
             "type": "object",
+            "additionalProperties": false,
             "description": "PCIe Root Port PCI/bridge PCI compatible device number and bus number information to uniquely identify the root port or bridge.",
             "required": [
                 "vendorID",
@@ -91,6 +93,7 @@
         },
         "bridgeControlStatus": {
             "type": "object",
+            "additionalProperties": false,
             "required": ["secondaryStatusRegister", "controlRegister"],
             "properties": {
                 "secondaryStatusRegister": {
@@ -105,6 +108,7 @@
         },
         "capabilityStructure": {
             "type": "object",
+            "additionalProperties": false,
             "description": "This feild reports either the PCIe 2.0 Capability structure",
             "required": ["data"],
             "properties": {
@@ -115,6 +119,7 @@
         },
         "aerInfo": {
             "type": "object",
+            "additionalProperties": false,
             "description": "PCIe Advanced Error Reporting Extended Capability Structure.",
             "required": ["data"],
             "properties": {
diff --git a/specification/json/sections/cper-vtd-dmar.json b/specification/json/sections/cper-vtd-dmar.json
index caa9d25..bb54c15 100644
--- a/specification/json/sections/cper-vtd-dmar.json
+++ b/specification/json/sections/cper-vtd-dmar.json
@@ -69,6 +69,7 @@
                 "addressType",
                 "type"
             ],
+            "additionalProperties": false,
             "properties": {
                 "faultInformation": {
                     "type": "integer"
diff --git a/tests/meson.build b/tests/meson.build
index accce38..e86f26b 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -65,7 +65,7 @@
 # Fuzzing only works on linux at this moment.  osx clang doesn't have leak detector
 is_darwin = host_machine.system().startswith('darwin')
 if (cxx.get_id() == 'clang') and get_option('fuzz').allowed() and not is_darwin
-    sanitize = ['fuzzer', 'address', 'leak']
+    sanitize = ['fuzzer']
     fuzz_args = [
         '-fsanitize=' + ','.join(sanitize),
         '-DFUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION',