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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-12-09 00:49:29 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-09-10 16:04:26 +0200 |
| commit | 9ea488e0fb55474910a0adc6afc7130850a7f726 (patch) | |
| tree | ad71c4df28f9bd32f033f716c66397bb8403be99 | |
| parent | 95882fe008a979067655034efdcb576aa80e5a0e (diff) | |
| download | ffmpeg-9ea488e0fb55474910a0adc6afc7130850a7f726.tar.gz | |
avformat/rpl: Check the number of streams
Fixes: out of memory access
Fixes: 27787/clusterfuzz-testcase-minimized-ffmpeg_dem_RPL_fuzzer-4743666463408128.fuzz
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 0677bdb1f522d0d25b47bca3d8e09ece83083678)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/rpl.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavformat/rpl.c b/libavformat/rpl.c index 6afd373810..a96d728a2a 100644 --- a/libavformat/rpl.c +++ b/libavformat/rpl.c @@ -253,6 +253,9 @@ static int rpl_read_header(AVFormatContext *s) error |= read_line(pb, line, sizeof(line)); } + if (s->nb_streams == 0) + return AVERROR_INVALIDDATA; + rpl->frames_per_chunk = read_line_and_int(pb, &error); // video frames per chunk if (vst && rpl->frames_per_chunk > 1 && vst->codecpar->codec_tag != 124) av_log(s, AV_LOG_WARNING, |