Merge commit 'f7e616959aff8706edccdae763c24c897c449f6f'

* commit 'f7e616959aff8706edccdae763c24c897c449f6f':
  electronicarts: Check packet sizes before reading

Conflicts:
	libavformat/electronicarts.c

See: fb1ea777b3
Merged-by: Michael Niedermayer <michaelni@gmx.at>

libavformat/electronicarts.c

@@ -579,12 +579,16 @@ static int ea_read_packet(AVFormatContext *s, AVPacket *pkt)
             case AV_CODEC_ID_ADPCM_EA_R1:
             case AV_CODEC_ID_ADPCM_EA_R2:
             case AV_CODEC_ID_ADPCM_IMA_EA_EACS:
-                if (pkt->size >= 4)
-                    pkt->duration = AV_RL32(pkt->data);
-                break;
             case AV_CODEC_ID_ADPCM_EA_R3:
-                if (pkt->size >= 4)
+                if (pkt->size < 4) {
+                    av_log(s, AV_LOG_ERROR, "Packet is too short\n");
+                    av_free_packet(pkt);
+                    return AVERROR_INVALIDDATA;
+                }
+                if (ea->audio_codec == AV_CODEC_ID_ADPCM_EA_R3)
                     pkt->duration = AV_RB32(pkt->data);
+                else
+                    pkt->duration = AV_RL32(pkt->data);
                 break;
             case AV_CODEC_ID_ADPCM_IMA_EA_SEAD:
                 pkt->duration = ret * 2 / ea->num_channels;