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| author | Anton Khirnov <anton@khirnov.net> | 2014-12-14 21:01:59 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2014-12-22 03:17:56 +0100 |
| commit | f5631d23e06ac3d1a8148a2989bef4e29ee28e09 (patch) | |
| tree | 5a2547bce8d7efefc3a58832216c4aab7683297a | |
| parent | 50f4543c6b37c2f16f3d40712db82abbe07c7887 (diff) | |
| download | ffmpeg-f5631d23e06ac3d1a8148a2989bef4e29ee28e09.tar.gz | |
mmvideo: check frame dimensions
The frame size must be set by the caller and each dimension must be a
multiple of 2.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
See: 8b0e96e1f21b761ca15dbb470cd619a1ebf86c3e
These should be redundant, but are backported for saftey anyway
| -rw-r--r-- | libavcodec/mmvideo.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libavcodec/mmvideo.c b/libavcodec/mmvideo.c index 9a7c10c3ab..8b04965d59 100644 --- a/libavcodec/mmvideo.c +++ b/libavcodec/mmvideo.c @@ -61,6 +61,13 @@ static av_cold int mm_decode_init(AVCodecContext *avctx) avctx->pix_fmt = AV_PIX_FMT_PAL8; + if (!avctx->width || !avctx->height || + (avctx->width & 1) || (avctx->height & 1)) { + av_log(avctx, AV_LOG_ERROR, "Invalid video dimensions: %dx%d\n", + avctx->width, avctx->height); + return AVERROR(EINVAL); + } + s->frame = av_frame_alloc(); if (!s->frame) return AVERROR(ENOMEM); |