From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Devin Moore <devinmoore@google.com>
Date: Fri, 17 Feb 2023 19:35:25 +0000
Subject: [PATCH] Remove some new memory leaks from SensorManager

After catching an error in Sensor::unflatten, there are memory leaks
caught by the fuzzer in the same test case.

Test: libsensorserviceaidl_fuzzer with testcase from bug
Bug: 269014004
Merged-In: I509cceb41f56ca117d9475f6f6674244560fe582
Change-Id: I509cceb41f56ca117d9475f6f6674244560fe582
(cherry picked from commit c95fa0f0e7c7b73746ff850b85a79fc5f92b784e)
Merged-In: I509cceb41f56ca117d9475f6f6674244560fe582
(cherry picked from commit on googleplex-android-review.googlesource.com host: ceb0d52273256c6a5c5622bf81b0ac4ba106faa1)
Merged-In: I509cceb41f56ca117d9475f6f6674244560fe582
---
 libs/sensor/ISensorServer.cpp | 12 ++++++++++--
 libs/sensor/SensorManager.cpp |  5 +++++
 2 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/libs/sensor/ISensorServer.cpp b/libs/sensor/ISensorServer.cpp
index 5200545a53..b2f1ba2507 100644
--- a/libs/sensor/ISensorServer.cpp
+++ b/libs/sensor/ISensorServer.cpp
@@ -66,7 +66,11 @@ public:
         v.setCapacity(n);
         while (n) {
             n--;
-            reply.read(s);
+            if(reply.read(s) != OK) {
+                ALOGE("Failed to read reply from getSensorList");
+                v.clear();
+                break;
+            }
             v.add(s);
         }
         return v;
@@ -84,7 +88,11 @@ public:
         v.setCapacity(n);
         while (n) {
             n--;
-            reply.read(s);
+            if(reply.read(s) != OK) {
+                ALOGE("Failed to read reply from getDynamicSensorList");
+                v.clear();
+                break;
+            }
             v.add(s);
         }
         return v;
diff --git a/libs/sensor/SensorManager.cpp b/libs/sensor/SensorManager.cpp
index c97e4da9b5..c9b857c60f 100644
--- a/libs/sensor/SensorManager.cpp
+++ b/libs/sensor/SensorManager.cpp
@@ -162,6 +162,11 @@ status_t SensorManager::assertStateLocked() {
 
         mSensors = mSensorServer->getSensorList(mOpPackageName);
         size_t count = mSensors.size();
+        if (count == 0) {
+            ALOGE("Failed to get Sensor list");
+            mSensorServer.clear();
+            return UNKNOWN_ERROR;
+        }
         mSensorList =
                 static_cast<Sensor const**>(malloc(count * sizeof(Sensor*)));
         LOG_ALWAYS_FATAL_IF(mSensorList == NULL, "mSensorList NULL");