avformat/iff: Check block align also for ID_MAUD

Fixes: Timeout & OOM
Fixes: 28701/clusterfuzz-testcase-minimized-ffmpeg_dem_IFF_fuzzer-5185094964871168
Fixes: 29116/clusterfuzz-testcase-minimized-ffmpeg_dem_IFF_fuzzer-4874284795297792

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit b17ffe8f8f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>

libavformat/iff.c

@@ -763,7 +763,7 @@ static int iff_read_header(AVFormatContext *s)
         st->codecpar->bits_per_coded_sample = av_get_bits_per_sample(st->codecpar->codec_id);
         st->codecpar->bit_rate = (int64_t)st->codecpar->channels * st->codecpar->sample_rate * st->codecpar->bits_per_coded_sample;
         st->codecpar->block_align = st->codecpar->channels * st->codecpar->bits_per_coded_sample;
-        if (st->codecpar->codec_tag == ID_DSD && st->codecpar->block_align <= 0)
+        if ((st->codecpar->codec_tag == ID_DSD || st->codecpar->codec_tag == ID_MAUD) && st->codecpar->block_align <= 0)
             return AVERROR_INVALIDDATA;
         break;