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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-12-09 00:49:29 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-12-09 21:41:15 +0100 |
| commit | 0677bdb1f522d0d25b47bca3d8e09ece83083678 (patch) | |
| tree | db22c23c466b8c10dcbe349377a793802dbb0f42 /libavformat/rpl.c | |
| parent | b1bced5433adcf5ad743d929c788b66af9efaf24 (diff) | |
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>
Diffstat (limited to 'libavformat/rpl.c')
| -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 c79419d558..b98488c7b1 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, |