diff --git a/media/libstagefright/MPEG4Extractor.cpp b/media/libstagefright/MPEG4Extractor.cpp
index f8789da..f6206d2 100755
--- a/media/libstagefright/MPEG4Extractor.cpp
+++ b/media/libstagefright/MPEG4Extractor.cpp
@@ -535,6 +535,10 @@
     }
     if (psshsize > 0 && psshsize <= UINT32_MAX) {
         char *buf = (char*)malloc(psshsize);
+        if (!buf) {
+            ALOGE("b/28471206");
+            return NO_MEMORY;
+        }
         char *ptr = buf;
         for (size_t i = 0; i < mPssh.size(); i++) {
             memcpy(ptr, mPssh[i].uuid, 20); // uuid + length
@@ -1702,6 +1706,11 @@
 
             sp<ABuffer> buffer = new ABuffer(chunk_data_size);
 
+            if (buffer->data() == NULL) {
+                ALOGE("b/28471206");
+                return NO_MEMORY;
+            }
+
             if (mDataSource->readAt(
                         data_offset, buffer->data(), chunk_data_size) < chunk_data_size) {
                 return ERROR_IO;
@@ -1719,6 +1728,11 @@
         {
             sp<ABuffer> buffer = new ABuffer(chunk_data_size);
 
+            if (buffer->data() == NULL) {
+                ALOGE("b/28471206");
+                return NO_MEMORY;
+            }
+
             if (mDataSource->readAt(
                         data_offset, buffer->data(), chunk_data_size) < chunk_data_size) {
                 return ERROR_IO;
@@ -2051,6 +2065,10 @@
                     return ERROR_MALFORMED;
                 }
                 sp<ABuffer> buffer = new ABuffer(chunk_data_size + 1);
+                if (buffer->data() == NULL) {
+                    ALOGE("b/28471206");
+                    return NO_MEMORY;
+                }
                 if (mDataSource->readAt(
                     data_offset, buffer->data(), chunk_data_size) != (ssize_t)chunk_data_size) {
                     return ERROR_IO;