diff options
author | Paul B Mahol <onemda@gmail.com> | 2020-02-15 14:52:47 +0100 |
---|---|---|
committer | Paul B Mahol <onemda@gmail.com> | 2020-02-16 13:04:01 +0100 |
commit | 96840e47de5199c258285d7b51f09d04ec0d1b72 (patch) | |
tree | f24353be32f413c8c02e94acb67a69d39cfd268e | |
parent | dfb0b9370d3621ab1f603e7bb8e142b1f6996562 (diff) |
avformat/utils: avoid unsigned integer overflows
-rw-r--r-- | libavformat/utils.c | 10 |
1 files changed, 6 insertions, 4 deletions
diff --git a/libavformat/utils.c b/libavformat/utils.c index 7ff5ea9702..d5ad4ec4b0 100644 --- a/libavformat/utils.c +++ b/libavformat/utils.c @@ -4455,15 +4455,17 @@ void avformat_free_context(AVFormatContext *s) if (s->oformat && s->oformat->priv_class && s->priv_data) av_opt_free(s->priv_data); - for (i = s->nb_streams - 1; i >= 0; i--) - ff_free_stream(s, s->streams[i]); - + for (i = 0; i < s->nb_streams; i++) + free_stream(&s->streams[i]); + s->nb_streams = 0; - for (i = s->nb_programs - 1; i >= 0; i--) { + for (i = 0; i < s->nb_programs; i++) { av_dict_free(&s->programs[i]->metadata); av_freep(&s->programs[i]->stream_index); av_freep(&s->programs[i]); } + s->nb_programs = 0; + av_freep(&s->programs); av_freep(&s->priv_data); while (s->nb_chapters--) { |