 virtual ssize_t readAt(off64_t offset, void *buffer, size_t size) {
 Parcel data, reply;
        data.writeInterfaceToken(
 IMediaHTTPConnection::getInterfaceDescriptor());

        data.writeInt64(offset);
        data.writeInt32(size);

 status_t err = remote()->transact(READ_AT, data, &reply);
 if (err != OK) {
            ALOGE("remote readAt failed");
 return UNKNOWN_ERROR;
 }

 int32_t exceptionCode = reply.readExceptionCode();

 if (exceptionCode) {

             return UNKNOWN_ERROR;
         }
 
        size_t len = reply.readInt32();
 
        if (len > size) {
            ALOGE("requested %zu, got %zu", size, len);
            return ERROR_OUT_OF_RANGE;
         }
        if (len > mMemory->size()) {
            ALOGE("got %zu, but memory has %zu", len, mMemory->size());
            return ERROR_OUT_OF_RANGE;
        }

        memcpy(buffer, mMemory->pointer(), len);
 
         return len;
     }

The product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary. This may result in read or write operations on unexpected memory locations that could be linked to other variables, data structures, or internal program data.