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avformat/nsvdec: Check asize for PCM 

Fixes: CID1604527 Overflowed constant

Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2024-07-11 20:29:10 +02:00
parent cea4dbc903
commit e83e246504
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GPG Key ID: B18E8928B3948D64
1 changed files with 1 additions and 1 deletions
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libavformat/nsvdec.c
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@ -617,7 +617,7 @@ null_chunk_retry:
pkt = &nsv->ahead[NSV_ST_AUDIO];
/* read raw audio specific header on the first audio chunk... */
/* on ALL audio chunks ?? seems so! */
if (asize && st[NSV_ST_AUDIO]->codecpar->codec_tag == MKTAG('P', 'C', 'M', ' ')/* && fill_header*/) {
if (asize >= 4 && st[NSV_ST_AUDIO]->codecpar->codec_tag == MKTAG('P', 'C', 'M', ' ')/* && fill_header*/) {
uint8_t bps;
uint8_t channels;
uint16_t samplerate;