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| author | Michael Niedermayer <michael@niedermayer.cc> | 2024-07-11 17:38:08 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2024-07-21 16:40:48 +0200 |
| commit | 891bc070f0294e564a02f9a71f6591b6a62c90cc (patch) | |
| tree | 2d83cae9189c433cef5ffb14661169f6ed6d1b00 | |
| parent | 2a8fb3c2cc07e741bca556eee8aea704fda4c33f (diff) | |
| download | ffmpeg-891bc070f0294e564a02f9a71f6591b6a62c90cc.tar.gz | |
avformat/asfdec_o: Check size of index object
We subtract 24 so it must be at least 24
Fixes: CID1604482 Overflowed constant
Sponsored-by: Sovereign Tech Fund
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/asfdec_o.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavformat/asfdec_o.c b/libavformat/asfdec_o.c index dfe448e9f7..dd187e600d 100644 --- a/libavformat/asfdec_o.c +++ b/libavformat/asfdec_o.c @@ -867,6 +867,9 @@ static int asf_read_simple_index(AVFormatContext *s, const GUIDParseTable *g) int64_t offset; uint64_t size = avio_rl64(pb); + if (size < 24) + return AVERROR_INVALIDDATA; + // simple index objects should be ordered by stream number, this loop tries to find // the first not indexed video stream for (i = 0; i < asf->nb_streams; i++) { |