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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-03-08 01:42:06 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-03-21 10:42:52 +0100 |
| commit | 599cfce022b3d7f7b3641867254c7d8a2e027497 (patch) | |
| tree | fd04b0a637663d6f27dcf92b3eba4bc7def50011 | |
| parent | 86af0e2a87321663b6c6f5538017dcb1726400c1 (diff) | |
| download | ffmpeg-599cfce022b3d7f7b3641867254c7d8a2e027497.tar.gz | |
avcodec/clearvideo: Check remaining data in P frames
Fixes: Timeout (19sec -> 419msec)
Fixes: 13411/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_CLEARVIDEO_fuzzer-5733153811988480
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 41f93f941155f9f9dbb2d5e7f5d20b2238150836)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/clearvideo.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/clearvideo.c b/libavcodec/clearvideo.c index 5e2f019929..a533613a3e 100644 --- a/libavcodec/clearvideo.c +++ b/libavcodec/clearvideo.c @@ -558,6 +558,9 @@ static int clv_decode_frame(AVCodecContext *avctx, void *data, } else { int plane; + if (c->pmb_width * c->pmb_height > 8LL*(buf_size - bytestream2_tell(&gb))) + return AVERROR_INVALIDDATA; + if ((ret = ff_reget_buffer(avctx, c->pic)) < 0) return ret; |