diff options
| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-12-09 00:49:29 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2021-02-02 14:18:21 +0100 |
| commit | 07d20683c608bdd508cf7b8a95c8daa15b107155 (patch) | |
| tree | 35ca7a93adebb0caa815324c5b99ef40b7a0f33c | |
| parent | a3763e63a6a8b29547e75a56bd48a5c60cc9b9fa (diff) | |
| download | ffmpeg-07d20683c608bdd508cf7b8a95c8daa15b107155.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 208c50f00c..0f00c03a52 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, |