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| author | Michael Niedermayer <michael@niedermayer.cc> | 2023-10-09 00:07:32 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2023-10-15 18:54:37 +0200 |
| commit | b79fc7059600b28dce392fc20e5c8bd554c2fc95 (patch) | |
| tree | a190fd164a9fc6d4955d59eab6d880a87921c488 /libavformat/tmv.c | |
| parent | fec6e84b18685abd2f8b3192bee560ff52c5220b (diff) | |
| download | ffmpeg-b79fc7059600b28dce392fc20e5c8bd554c2fc95.tar.gz | |
avformat/tmv: Check video chunk size
This check matches the audio chunk check
Fixes: Timeout
Fixes: 62681/clusterfuzz-testcase-minimized-ffmpeg_dem_TMV_fuzzer-5299107876700160
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavformat/tmv.c')
| -rw-r--r-- | libavformat/tmv.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/libavformat/tmv.c b/libavformat/tmv.c index ea39954190..18105f764e 100644 --- a/libavformat/tmv.c +++ b/libavformat/tmv.c @@ -103,6 +103,10 @@ static int tmv_read_header(AVFormatContext *s) char_cols = avio_r8(pb); char_rows = avio_r8(pb); tmv->video_chunk_size = char_cols * char_rows * 2; + if (!tmv->video_chunk_size) { + av_log(s, AV_LOG_ERROR, "invalid video chunk size\n"); + return AVERROR_INVALIDDATA; + } features = avio_r8(pb); if (features & ~(TMV_PADDING | TMV_STEREO)) { |