Hi,

I am unsure exactly who this concerns, but I have been using the `ginkgo` conformance tests for my project [nodejs-k8s](https://github.com/Megapixel99/nodejs-k8s) and I have been running into some issues parsing the protobuf data which is sent from the tests. I am not entirely sure if I am doing something incorrectly (or if this is even the correct project for this issue); however, assuming I am doing everything properly, the protobuf data being sent from the tests seems to be corrupted.

The command I am using to run the tests is:
`kubetest2 noop --kubeconfig=./test-config --v 10 --test=ginkgo`

and my `kubeconfig` file can be found here: 
https://github.com/Megapixel99/nodejs-k8s/blob/f2c0f14f17b16d3093aa33a45dfdcd01b373c460/test-config

When running the tests I am logging the method, headers, and body of every request sent to the server [via this code here](https://github.com/Megapixel99/nodejs-k8s/blob/f2c0f14f17b16d3093aa33a45dfdcd01b373c460/index.js#L90-L95). Upon decoding the protobuf data; however, I am constantly getting errors.

For example, the payload sent with this test: `[sig-node] Secrets should be consumable from pods in env vars [NodeConformance] [Conformance]` when converted using `NodeJS`s built-in [`Buffer.toString`](https://nodejs.org/api/buffer.html#buftostringencoding-start-end) method I get the following results:

converted to base64 it is:
```
azhzAAoPCgJ2MRIJTmFtZXNwYWNlEvsBCvIBCgxzZWNyZXRzLTg0ODASABoAIgAqADIAOABCAFoYCg1lMmUtZnJhbWV3b3JrEgdzZWNyZXRzWi8KB2UyZS1ydW4SJDBkMTNmYmNlLWNmMzMtNDFkNS05YmJiLWQyZDY3YjEwMzBkOVosCiBwb2Qtc2VjdXJpdHkua3ViZXJuZXRlcy5pby9hdWRpdBIIYmFzZWxpbmVaLgoicG9kLXNlY3VyaXR5Lmt1YmVybmV0ZXMuaW8vZW5mb3JjZRIIYmFzZWxpbmVaKwofcG9kLXNlY3VyaXR5Lmt1YmVybmV0ZXMuaW8vd2FybhIIYmFzZWxpbmUSABoCCgAaACIA
``` 
and converted to UTF-8 it is:
```
k8s

v1	Namespace�
�

secrets-8480"*28BZ
e2e-frameworksecretsZ/
e2e-run$0d13fbce-cf33-41d5-9bbb-d2d67b1030d9Z,
 pod-security.kubernetes.io/audibaselineZ.
"pod-security.kubernetes.io/enforcbaselineZ+
pod-security.kubernetes.io/warbaseline
"
```
and converted to binary it is:
```
k8s

v1	Namespaceû
ò

secrets-8480"*28BZ
e2e-frameworksecretsZ/
e2e-run$0d13fbce-cf33-41d5-9bbb-d2d67b1030d9Z,
 pod-security.kubernetes.io/audibaselineZ.
"pod-security.kubernetes.io/enforcbaselineZ+
pod-security.kubernetes.io/warbaseline
"
```
When showing the hidden characters with [JSON.stringify](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify) (after converting the data to UTF-8) I see:
```
k8s\u0000\n\u000f\n\u0002v1\u0012\tNamespace\u0012�\u0002\n�\u0001\n\u000fsecrets-8480\u0012\u0000\u001a\u0000\"\u0000*\u00002\u00008\u0000B\u0000Z\u001b\n\re2e-framework\u0012\nnamespacesZ/\n\u0007e2e-run\u0012$0d13fbce-cf33-41d5-9bbb-d2d67b1030d9Z,\n pod-security.kubernetes.io/audit\u0012\bbaselineZ.\n\"pod-security.kubernetes.io/enforce\u0012\bbaselineZ+\n\u001fpod-security.kubernetes.io/warn\u0012\bbaseline\u0012\u0000\u001a\u0002\n\u0000\u001a\u0000\"\u0000
```
Upon trying to decode the base64 data above in https://www.protobufpal.com/ using the proto below (which was taken from [this file](https://github.com/kubernetes/kubernetes/blob/1ebc3d2a6480f3679c28d0bc3d486ad93e95084f/staging/src/k8s.io/api/core/v1/generated.proto#L2376) and modified slightly to fix the references):
```
syntax = "proto2";

package openapitools;

import "google/protobuf/struct.proto";

message Namespace {
  optional ObjectMeta metadata = 1;
  optional NamespaceSpec spec = 2;
  optional NamespaceStatus status = 3;
}
message NamespaceCondition {
  optional string type = 1;
  optional string status = 2;
  optional Time lastTransitionTime = 4;
  optional string reason = 5;
  optional string message = 6;
}
message NamespaceSpec {
  repeated string finalizers = 1;
}
message NamespaceStatus {
  optional string phase = 1;
  repeated NamespaceCondition conditions = 2;
}
message ObjectMeta {
  optional string name = 1;
  optional string generateName = 2;
  optional string namespace = 3;
  optional string selfLink = 4;
  optional string uid = 5;
  optional string resourceVersion = 6;
  optional int64 generation = 7;
  optional Time creationTimestamp = 8;
  optional Time deletionTimestamp = 9;
  optional int64 deletionGracePeriodSeconds = 10;
  map<string, string> labels = 11;
  map<string, string> annotations = 12;
  repeated OwnerReference ownerReferences = 13;
  repeated string finalizers = 14;
  repeated ManagedFieldsEntry managedFields = 17;
}
message OwnerReference {
  optional string apiVersion = 5;
  optional string kind = 1;
  optional string name = 3;
  optional string uid = 4;
  optional bool controller = 6;
  optional bool blockOwnerDeletion = 7;
}
message ManagedFieldsEntry {
  optional string manager = 1;
  optional string operation = 2;
  optional string apiVersion = 3;
  optional Time time = 4;
  optional string fieldsType = 6;
  optional FieldsV1 fieldsV1 = 7;
  optional string subresource = 8;
}
message FieldsV1 {
  optional bytes Raw = 1;
}
message Time {
  optional int64 seconds = 1;
  optional int32 nanos = 2;
}
```
I receive the error `Unable to parse encoded message`, also when trying to parse the protobuf data using [protobufjs](https://www.npmjs.com/package/protobufjs) and the same proto as above I receive the error:
```
Error: invalid wire type 7 at offset 6
    at Reader.skipType (/Users/seth/Desktop/temp/coding/k8s/node_modules/protobufjs/src/reader.js:382:19)
    at Reader.skipType (/Users/seth/Desktop/temp/coding/k8s/node_modules/protobufjs/src/reader.js:373:22)
```
And wire type 7 is an indicator of a corrupted buffer as mentioned here: https://github.com/protobufjs/protobuf.js/wiki/How-to-reverse-engineer-a-buffer-by-hand#so-what-are-those-wire-types.

While it is possible that I am doing something wrong. Everything I have read about protocol buffers seems to indicate the protobuf data sent in the http request should (almost) match the spec defined in the proto file ie
```
{
  1: value,
  2: value,
  ....
}
```
and not what I am currently seeing.

Let me know if I need to provide anything else or if I am doing something incorrectly.
Conformance tests possibly sending corrupt protobuf (Protocol Buffer) data?
This is a GitHub Issue
repo:kubernetes
owner:kubernetes
Title : Conformance tests possibly sending corrupt protobuf (Protocol Buffer) data?
Issue date:

--- start body ---
Hi,

I am unsure exactly who this concerns, but I have been using the `ginkgo` conformance tests for my project [nodejs-k8s](https://github.com/Megapixel99/nodejs-k8s) and I have been running into some issues parsing the protobuf data which is sent from the tests. I am not entirely sure if I am doing something incorrectly (or if this is even the correct project for this issue); however, assuming I am doing everything properly, the protobuf data being sent from the tests seems to be corrupted.

The command I am using to run the tests is:
`kubetest2 noop --kubeconfig=./test-config --v 10 --test=ginkgo`

and my `kubeconfig` file can be found here: 
https://github.com/Megapixel99/nodejs-k8s/blob/f2c0f14f17b16d3093aa33a45dfdcd01b373c460/test-config

When running the tests I am logging the method, headers, and body of every request sent to the server [via this code here](https://github.com/Megapixel99/nodejs-k8s/blob/f2c0f14f17b16d3093aa33a45dfdcd01b373c460/index.js#L90-L95). Upon decoding the protobuf data; however, I am constantly getting errors.

For example, the payload sent with this test: `[sig-node] Secrets should be consumable from pods in env vars [NodeConformance] [Conformance]` when converted using `NodeJS`s built-in [`Buffer.toString`](https://nodejs.org/api/buffer.html#buftostringencoding-start-end) method I get the following results:

converted to base64 it is:
```
azhzAAoPCgJ2MRIJTmFtZXNwYWNlEvsBCvIBCgxzZWNyZXRzLTg0ODASABoAIgAqADIAOABCAFoYCg1lMmUtZnJhbWV3b3JrEgdzZWNyZXRzWi8KB2UyZS1ydW4SJDBkMTNmYmNlLWNmMzMtNDFkNS05YmJiLWQyZDY3YjEwMzBkOVosCiBwb2Qtc2VjdXJpdHkua3ViZXJuZXRlcy5pby9hdWRpdBIIYmFzZWxpbmVaLgoicG9kLXNlY3VyaXR5Lmt1YmVybmV0ZXMuaW8vZW5mb3JjZRIIYmFzZWxpbmVaKwofcG9kLXNlY3VyaXR5Lmt1YmVybmV0ZXMuaW8vd2FybhIIYmFzZWxpbmUSABoCCgAaACIA
``` 
and converted to UTF-8 it is:
```
k8s

v1	Namespace�
�

secrets-8480"*28BZ
e2e-frameworksecretsZ/
e2e-run$0d13fbce-cf33-41d5-9bbb-d2d67b1030d9Z,
 pod-security.kubernetes.io/audibaselineZ.
"pod-security.kubernetes.io/enforcbaselineZ+
pod-security.kubernetes.io/warbaseline
"
```
and converted to binary it is:
```
k8s

v1	Namespaceû
ò

secrets-8480"*28BZ
e2e-frameworksecretsZ/
e2e-run$0d13fbce-cf33-41d5-9bbb-d2d67b1030d9Z,
 pod-security.kubernetes.io/audibaselineZ.
"pod-security.kubernetes.io/enforcbaselineZ+
pod-security.kubernetes.io/warbaseline
"
```
When showing the hidden characters with [JSON.stringify](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/stringify) (after converting the data to UTF-8) I see:
```
k8s\u0000\n\u000f\n\u0002v1\u0012\tNamespace\u0012�\u0002\n�\u0001\n\u000fsecrets-8480\u0012\u0000\u001a\u0000\"\u0000*\u00002\u00008\u0000B\u0000Z\u001b\n\re2e-framework\u0012\nnamespacesZ/\n\u0007e2e-run\u0012$0d13fbce-cf33-41d5-9bbb-d2d67b1030d9Z,\n pod-security.kubernetes.io/audit\u0012\bbaselineZ.\n\"pod-security.kubernetes.io/enforce\u0012\bbaselineZ+\n\u001fpod-security.kubernetes.io/warn\u0012\bbaseline\u0012\u0000\u001a\u0002\n\u0000\u001a\u0000\"\u0000
```
Upon trying to decode the base64 data above in https://www.protobufpal.com/ using the proto below (which was taken from [this file](https://github.com/kubernetes/kubernetes/blob/1ebc3d2a6480f3679c28d0bc3d486ad93e95084f/staging/src/k8s.io/api/core/v1/generated.proto#L2376) and modified slightly to fix the references):
```
syntax = "proto2";

package openapitools;

import "google/protobuf/struct.proto";

message Namespace {
  optional ObjectMeta metadata = 1;
  optional NamespaceSpec spec = 2;
  optional NamespaceStatus status = 3;
}
message NamespaceCondition {
  optional string type = 1;
  optional string status = 2;
  optional Time lastTransitionTime = 4;
  optional string reason = 5;
  optional string message = 6;
}
message NamespaceSpec {
  repeated string finalizers = 1;
}
message NamespaceStatus {
  optional string phase = 1;
  repeated NamespaceCondition conditions = 2;
}
message ObjectMeta {
  optional string name = 1;
  optional string generateName = 2;
  optional string namespace = 3;
  optional string selfLink = 4;
  optional string uid = 5;
  optional string resourceVersion = 6;
  optional int64 generation = 7;
  optional Time creationTimestamp = 8;
  optional Time deletionTimestamp = 9;
  optional int64 deletionGracePeriodSeconds = 10;
  map<string, string> labels = 11;
  map<string, string> annotations = 12;
  repeated OwnerReference ownerReferences = 13;
  repeated string finalizers = 14;
  repeated ManagedFieldsEntry managedFields = 17;
}
message OwnerReference {
  optional string apiVersion = 5;
  optional string kind = 1;
  optional string name = 3;
  optional string uid = 4;
  optional bool controller = 6;
  optional bool blockOwnerDeletion = 7;
}
message ManagedFieldsEntry {
  optional string manager = 1;
  optional string operation = 2;
  optional string apiVersion = 3;
  optional Time time = 4;
  optional string fieldsType = 6;
  optional FieldsV1 fieldsV1 = 7;
  optional string subresource = 8;
}
message FieldsV1 {
  optional bytes Raw = 1;
}
message Time {
  optional int64 seconds = 1;
  optional int32 nanos = 2;
}
```
I receive the error `Unable to parse encoded message`, also when trying to parse the protobuf data using [protobufjs](https://www.npmjs.com/package/protobufjs) and the same proto as above I receive the error:
```
Error: invalid wire type 7 at offset 6
    at Reader.skipType (/Users/seth/Desktop/temp/coding/k8s/node_modules/protobufjs/src/reader.js:382:19)
    at Reader.skipType (/Users/seth/Desktop/temp/coding/k8s/node_modules/protobufjs/src/reader.js:373:22)
```
And wire type 7 is an indicator of a corrupted buffer as mentioned here: https://github.com/protobufjs/protobuf.js/wiki/How-to-reverse-engineer-a-buffer-by-hand#so-what-are-those-wire-types.

While it is possible that I am doing something wrong. Everything I have read about protocol buffers seems to indicate the protobuf data sent in the http request should (almost) match the spec defined in the proto file ie
```
{
  1: value,
  2: value,
  ....
}
```
and not what I am currently seeing.

Let me know if I need to provide anything else or if I am doing something incorrectly.
--- end body ---

The issue describes a potential problem with the conformance tests in Kubernetes that may be sending corrupted Protocol Buffer (protobuf) data. The user is experiencing difficulties parsing the protobuf data received from the tests, which leads to errors indicating that the data may be corrupted. This could potentially indicate a vulnerability if the corrupted data can be exploited to cause unexpected behavior or crashes in the application. However, the issue primarily revolves around data handling and parsing rather than a direct security vulnerability.