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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-05-31 14:24:04 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-07-05 01:47:56 +0200 |
| commit | a77a20ddeee211ed84b660dc0e3be6ccdfd68719 (patch) | |
| tree | 214d4ccebab2503ef76079ce961aaa4919c3597d | |
| parent | 7991001f9d5cb8ac07d41f7d9c3ce2b470b9e96d (diff) | |
| download | ffmpeg-a77a20ddeee211ed84b660dc0e3be6ccdfd68719.tar.gz | |
avformat/thp: Check compcount
Fixes: out of array access
Fixes: 22520/clusterfuzz-testcase-minimized-ffmpeg_DEMUXER_fuzzer-5100297658826752
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 1ba8484559661dfdbca36dbc17b203f33f62e26c)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavformat/thp.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavformat/thp.c b/libavformat/thp.c index f2cac5b3fb..2e27f1da18 100644 --- a/libavformat/thp.c +++ b/libavformat/thp.c @@ -93,6 +93,9 @@ static int thp_read_header(AVFormatContext *s) avio_seek (pb, thp->compoff, SEEK_SET); thp->compcount = avio_rb32(pb); + if (thp->compcount > FF_ARRAY_ELEMS(thp->components)) + return AVERROR_INVALIDDATA; + /* Read the list of component types. */ avio_read(pb, thp->components, 16); |