diff options
Diffstat (limited to 'libavformat/electronicarts.c')
-rw-r--r-- | libavformat/electronicarts.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/libavformat/electronicarts.c b/libavformat/electronicarts.c index 0fb66970d6..3070b05780 100644 --- a/libavformat/electronicarts.c +++ b/libavformat/electronicarts.c @@ -495,12 +495,17 @@ static int ea_read_packet(AVFormatContext *s, while (!packet_read || partial_packet) { chunk_type = avio_rl32(pb); - chunk_size = (ea->big_endian ? avio_rb32(pb) : avio_rl32(pb)) - 8; + chunk_size = ea->big_endian ? avio_rb32(pb) : avio_rl32(pb); + if (chunk_size <= 8) + return AVERROR_INVALIDDATA; + chunk_size -= 8; switch (chunk_type) { /* audio data */ case ISNh_TAG: /* header chunk also contains data; skip over the header portion*/ + if (chunk_size < 32) + return AVERROR_INVALIDDATA; avio_skip(pb, 32); chunk_size -= 32; case ISNd_TAG: |