Decoder: Update check for increment u2_cur_slice_num Increment u2_cur_slice_num only if current slice had atleast one MB of memory left. Test: clusterfuzz generated poc in bug Bug: b/182152757 Bug: b/179938345 Bug: b/185112718 Change-Id: Ic5eb07e961bccb7fde954bcfd791fd879804e335 (cherry picked from commit a88e0683a420d7ee9aa4b6f41f94cb8dc0c5e040)