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avformat/avformat: fix group index range check in match_stream_specifier() 

Fixes segfaults when trying to map a group index with a value equal to the
amount of groups in the file.

Signed-off-by: James Almer <jamrial@gmail.com>
This commit is contained in:
James Almer 2024-01-30 17:21:56 -03:00
parent 7252e4f8ee
commit 9949c1dd78
1 changed files with 1 additions and 1 deletions
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2
libavformat/avformat.c
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@ -551,7 +551,7 @@ static int match_stream_specifier(const AVFormatContext *s, const AVStream *st,
} }
} }
} }
if (group_idx < 0 || group_idx > s->nb_stream_groups) if (group_idx < 0 || group_idx >= s->nb_stream_groups)
return AVERROR(EINVAL); return AVERROR(EINVAL);
for (unsigned j = 0; j < s->stream_groups[group_idx]->nb_streams; j++) { for (unsigned j = 0; j < s->stream_groups[group_idx]->nb_streams; j++) {
if (st->index == s->stream_groups[group_idx]->streams[j]->index) { if (st->index == s->stream_groups[group_idx]->streams[j]->index) {