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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-11-22 20:14:54 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-12-07 23:38:06 +0100 |
| commit | e56f691283f0a793c3ae00711e98e316649f9f49 (patch) | |
| tree | be2a1d5bf9915d644ed2db96b7d449b75fcf3e5f | |
| parent | 3ae71b648ad041cacd10db5be220eb2aeda2869b (diff) | |
| download | ffmpeg-e56f691283f0a793c3ae00711e98e316649f9f49.tar.gz | |
avcodec/kgv1dec: Check that there is enough input for maximum RLE compression
Fixes: Timeout
Fixes: 4271/clusterfuzz-testcase-4676667768307712
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 3aad94bf2b140cfba8ae69d018da05d4948ef37f)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/kgv1dec.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/kgv1dec.c b/libavcodec/kgv1dec.c index 5359411c76..a6bd9400ac 100644 --- a/libavcodec/kgv1dec.c +++ b/libavcodec/kgv1dec.c @@ -62,6 +62,9 @@ static int decode_frame(AVCodecContext *avctx, void *data, int *got_frame, h = (buf[1] + 1) * 8; buf += 2; + if (avpkt->size < 2 + w*h / 513) + return AVERROR_INVALIDDATA; + if (w != avctx->width || h != avctx->height) { av_freep(&c->frame_buffer); av_freep(&c->last_frame_buffer); |