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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-02-04 02:45:02 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-02-04 03:05:08 +0100 |
| commit | 9797929749d040d0cdd2be3d99e739f8526cf01c (patch) | |
| tree | 112c67b34ab526b6ac5f626c4dfbe7f7cc086e68 | |
| parent | dfca37f0e513236cf824d9d0d3aedd9b76014ab5 (diff) | |
| download | ffmpeg-9797929749d040d0cdd2be3d99e739f8526cf01c.tar.gz | |
avcodec/interplayvideo: Move parameter change check up
Fixes out of array read
Fixes: 544/clusterfuzz-testcase-5936536407244800.f8bd9b24_8ba77916_70c2c7be_3df6a2ea_96cd9f14
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit b1e2192007d7026049237c9ab11e05ae71bf4f42)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/interplayvideo.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/libavcodec/interplayvideo.c b/libavcodec/interplayvideo.c index 3c3212e1fe..48dc3783b4 100644 --- a/libavcodec/interplayvideo.c +++ b/libavcodec/interplayvideo.c @@ -988,6 +988,11 @@ static int ipvideo_decode_frame(AVCodecContext *avctx, AVFrame *frame = data; int ret; + if (av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, NULL)) { + av_frame_unref(s->last_frame); + av_frame_unref(s->second_last_frame); + } + if (buf_size < 2) return AVERROR_INVALIDDATA; @@ -999,10 +1004,6 @@ static int ipvideo_decode_frame(AVCodecContext *avctx, if (buf_size < s->decoding_map_size + 2) return buf_size; - if (av_packet_get_side_data(avpkt, AV_PKT_DATA_PARAM_CHANGE, NULL)) { - av_frame_unref(s->last_frame); - av_frame_unref(s->second_last_frame); - } s->decoding_map = buf + 2; bytestream2_init(&s->stream_ptr, buf + 2 + s->decoding_map_size, |