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avformat/argo_asf: bail if invalid tag 

Signed-off-by: Zane van Iperen <zane@zanevaniperen.com>
This commit is contained in:
Zane van Iperen 2020-09-06 11:00:17 +10:00
parent 96907e84dd
commit 0476b6ee1e
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1 changed files with 3 additions and 0 deletions
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3
libavformat/argo_asf.c
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@ -144,6 +144,9 @@ static int argo_asf_read_header(AVFormatContext *s)
argo_asf_parse_file_header(&asf->fhdr, buf);
if (asf->fhdr.magic != ASF_TAG)
return AVERROR_INVALIDDATA;
if (asf->fhdr.num_chunks == 0) {
return AVERROR_INVALIDDATA;
} else if (asf->fhdr.num_chunks > 1) {