[FFmpeg-devel] [PATCH] msvideo1_decode_init: check frame dimensions

Xiao Yang YangX92 at hotmail.com
Tue Jun 12 03:45:00 EEST 2018


---
 libavcodec/msvideo1.c |    7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/libavcodec/msvideo1.c b/libavcodec/msvideo1.c
index 29700f5..04c5ebb 100644
--- a/libavcodec/msvideo1.c
+++ b/libavcodec/msvideo1.c
@@ -73,6 +73,13 @@ static av_cold int msvideo1_decode_init(AVCodecContext *avctx)
         avctx->pix_fmt = AV_PIX_FMT_RGB555;
     }
 
+    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);
-- 
1.7.9.5



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