diff --git a/drm/mediadrm/plugins/clearkey/hidl/DrmPlugin.cpp b/drm/mediadrm/plugins/clearkey/hidl/DrmPlugin.cpp
index d74bc53..71bb218 100644
--- a/drm/mediadrm/plugins/clearkey/hidl/DrmPlugin.cpp
+++ b/drm/mediadrm/plugins/clearkey/hidl/DrmPlugin.cpp
@@ -797,37 +797,55 @@
 }
 
 Return<Status> DrmPlugin::releaseSecureStops(const SecureStopRelease& ssRelease) {
-    if (ssRelease.opaqueData.size() == 0) {
+    // OpaqueData starts with 4 byte decimal integer string
+    const size_t kFourBytesOffset = 4;
+    if (ssRelease.opaqueData.size() < kFourBytesOffset) {
+        ALOGE("Invalid secureStopRelease length");
         return Status::BAD_VALUE;
     }
 
     Status status = Status::OK;
     std::vector<uint8_t> input = toVector(ssRelease.opaqueData);
 
+    if (input.size() < kSecureStopIdSize + kFourBytesOffset) {
+        // The minimum size of SecureStopRelease has to contain
+        // a 4 bytes count and one secureStop id
+        ALOGE("Total size of secureStops is too short");
+        return Status::BAD_VALUE;
+    }
+
     // The format of opaqueData is shared between the server
     // and the drm service. The clearkey implementation consists of:
     //    count - number of secure stops
     //    list of fixed length secure stops
-    size_t countBufferSize = sizeof(uint32_t);
     uint32_t count = 0;
     sscanf(reinterpret_cast<char*>(input.data()), "%04" PRIu32, &count);
 
     // Avoid divide by 0 below.
     if (count == 0) {
+        ALOGE("Invalid 0 secureStop count");
         return Status::BAD_VALUE;
     }
 
-    size_t secureStopSize = (input.size() - countBufferSize) / count;
-    uint8_t buffer[secureStopSize];
-    size_t offset = countBufferSize; // skip the count
+    // Computes the fixed length secureStop size
+    size_t secureStopSize = (input.size() - kFourBytesOffset) / count;
+    if (secureStopSize < kSecureStopIdSize) {
+        // A valid secureStop contains the id plus data
+        ALOGE("Invalid secureStop size");
+        return Status::BAD_VALUE;
+    }
+    uint8_t* buffer = new uint8_t[secureStopSize];
+    size_t offset = kFourBytesOffset; // skip the count
     for (size_t i = 0; i < count; ++i, offset += secureStopSize) {
         memcpy(buffer, input.data() + offset, secureStopSize);
-        std::vector<uint8_t> id(buffer, buffer + kSecureStopIdSize);
 
+        // A secureStop contains id+data, we only use the id for removal
+        std::vector<uint8_t> id(buffer, buffer + kSecureStopIdSize);
         status = removeSecureStop(toHidlVec(id));
         if (Status::OK != status) break;
     }
 
+    delete[] buffer;
     return status;
 }
 
diff --git a/media/libaudioclient/IAudioFlinger.cpp b/media/libaudioclient/IAudioFlinger.cpp
index dd95e34..efa0512 100644
--- a/media/libaudioclient/IAudioFlinger.cpp
+++ b/media/libaudioclient/IAudioFlinger.cpp
@@ -1339,10 +1339,14 @@
         }
         case GET_EFFECT_DESCRIPTOR: {
             CHECK_INTERFACE(IAudioFlinger, data, reply);
-            effect_uuid_t uuid;
-            data.read(&uuid, sizeof(effect_uuid_t));
-            effect_uuid_t type;
-            data.read(&type, sizeof(effect_uuid_t));
+            effect_uuid_t uuid = {};
+            if (data.read(&uuid, sizeof(effect_uuid_t)) != NO_ERROR) {
+                android_errorWriteLog(0x534e4554, "139417189");
+            }
+            effect_uuid_t type = {};
+            if (data.read(&type, sizeof(effect_uuid_t)) != NO_ERROR) {
+                android_errorWriteLog(0x534e4554, "139417189");
+            }
             uint32_t preferredTypeFlag = data.readUint32();
             effect_descriptor_t desc = {};
             status_t status = getEffectDescriptor(&uuid, &type, preferredTypeFlag, &desc);
diff --git a/media/libmediaplayerservice/nuplayer/StreamingSource.cpp b/media/libmediaplayerservice/nuplayer/StreamingSource.cpp
index afdcd37..f21d2b3 100644
--- a/media/libmediaplayerservice/nuplayer/StreamingSource.cpp
+++ b/media/libmediaplayerservice/nuplayer/StreamingSource.cpp
@@ -130,29 +130,32 @@
         } else if (n < 0) {
             break;
         } else {
-            if (buffer[0] == 0x00) {
+            if (buffer[0] == 0x00) { // OK to access buffer[0] since n must be > 0 here
                 // XXX legacy
 
                 if (extra == NULL) {
                     extra = new AMessage;
                 }
 
-                uint8_t type = buffer[1];
+                uint8_t type = 0;
+                if (n > 1) {
+                    type = buffer[1];
 
-                if (type & 2) {
-                    int64_t mediaTimeUs;
-                    memcpy(&mediaTimeUs, &buffer[2], sizeof(mediaTimeUs));
+                    if ((type & 2) && (n >= 2 + sizeof(int64_t))) {
+                        int64_t mediaTimeUs;
+                        memcpy(&mediaTimeUs, &buffer[2], sizeof(mediaTimeUs));
 
-                    extra->setInt64(kATSParserKeyMediaTimeUs, mediaTimeUs);
+                        extra->setInt64(kATSParserKeyMediaTimeUs, mediaTimeUs);
+                    }
                 }
 
                 mTSParser->signalDiscontinuity(
                         ((type & 1) == 0)
-                            ? ATSParser::DISCONTINUITY_TIME
-                            : ATSParser::DISCONTINUITY_FORMATCHANGE,
+                                ? ATSParser::DISCONTINUITY_TIME
+                                : ATSParser::DISCONTINUITY_FORMATCHANGE,
                         extra);
             } else {
-                status_t err = mTSParser->feedTSPacket(buffer, sizeof(buffer));
+                status_t err = mTSParser->feedTSPacket(buffer, n);
 
                 if (err != OK) {
                     ALOGE("TS Parser returned error %d", err);