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nsvdec: validate channels and samplerate

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Avoid a division by zero.

CC: libav-stable@libav.org
Bug-Id: CID 717749
This commit is contained in:
Vittorio Giovara 2015-01-23 15:03:08 +00:00
parent a536a4e4bc
commit 7c51d79ca7
1 changed files with 2 additions and 0 deletions
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2
libavformat/nsvdec.c
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@ -620,6 +620,8 @@ null_chunk_retry:
bps = avio_r8(pb);
channels = avio_r8(pb);
samplerate = avio_rl16(pb);
if (!channels || !samplerate)
return AVERROR_INVALIDDATA;
asize-=4;
av_dlog(s, "NSV RAWAUDIO: bps %d, nchan %d, srate %d\n", bps, channels, samplerate);
if (fill_header) {