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| author | Michael Niedermayer <michael@niedermayer.cc> | 2019-04-11 00:36:48 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2019-04-11 19:25:42 +0200 |
| commit | 3308e3da045e8a01ee08affa33a2d424629ca2e3 (patch) | |
| tree | 86e20aa0dff5bb389d92688d081ff1102aee6c65 /libavcodec/agm.c | |
| parent | d0f24df648f46e4c9a385e12a057fbade21427db (diff) | |
| download | ffmpeg-3308e3da045e8a01ee08affa33a2d424629ca2e3.tar.gz | |
avcodec/agm: Check frame dimensions
Fixes: out of array access
Fixes: 14110/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_AGM_fuzzer-5649184864075776
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Reviewed-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/agm.c')
| -rw-r--r-- | libavcodec/agm.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/libavcodec/agm.c b/libavcodec/agm.c index ab9b93a5f8..f5fd5d065e 100644 --- a/libavcodec/agm.c +++ b/libavcodec/agm.c @@ -1178,6 +1178,9 @@ static int decode_frame(AVCodecContext *avctx, void *data, av_log(avctx, AV_LOG_ERROR, "Missing reference frame.\n"); return AVERROR_INVALIDDATA; } + if (s->prev_frame-> width != frame->width || + s->prev_frame->height != frame->height) + return AVERROR_INVALIDDATA; if (!(s->flags & 2)) { ret = av_frame_copy(frame, s->prev_frame); |