1 files changed, 5 insertions, 0 deletions
diff --git a/libavcodec/gif.c b/libavcodec/gif.c
index ec4be2749b..5cb635df1f 100644
--- a/libavcodec/gif.c
+++ b/libavcodec/gif.c
@@ -145,6 +145,11 @@ static av_cold int gif_encode_init(AVCodecContext *avctx)
 {
     GIFContext *s = avctx->priv_data;
 
+    if (avctx->width > 65535 || avctx->height > 65535) {
+        av_log(avctx, AV_LOG_ERROR, "GIF does not support resolutions above 65535x65535\n");
+        return -1;
+    }
+
     avctx->coded_frame = &s->picture;
     s->lzw = av_mallocz(ff_lzw_encode_state_size);
     if (!s->lzw)