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avformat/argo_brp: Check that ASF chunk header is completely read

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Fixes: Use of uninitialized value
Fixes: 71280/clusterfuzz-testcase-minimized-ffmpeg_dem_ARGO_BRP_fuzzer-4692991866896384

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2024-08-19 22:17:48 +02:00
parent 46e3bc2ebd
commit 815d008681
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GPG Key ID: B18E8928B3948D64
1 changed files with 2 additions and 2 deletions
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libavformat/argo_brp.c
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@ -380,8 +380,8 @@ static int argo_brp_read_packet(AVFormatContext *s, AVPacket *pkt)
if (blk.size < ASF_CHUNK_HEADER_SIZE)
return AVERROR_INVALIDDATA;
if ((ret = avio_read(s->pb, buf, ASF_CHUNK_HEADER_SIZE)) < 0)
return ret;
if (avio_read(s->pb, buf, ASF_CHUNK_HEADER_SIZE) != ASF_CHUNK_HEADER_SIZE)
return AVERROR_INVALIDDATA;
ff_argo_asf_parse_chunk_header(&ckhdr, buf);