avfilter/vf_bwdif: fix heap-buffer overflow

Fixes #8261
5 years ago · 8c3166e1c3
parent ce764a6c74
commit 8c3166e1c3
1 changed files with 2 additions and 2 deletions
--- a/libavfilter/vf_bwdif.c
+++ b/libavfilter/vf_bwdif.c
@ -343,8 +343,8 @@ static int config_props(AVFilterLink *link)
    if(yadif->mode&1)
        link->frame_rate = av_mul_q(link->src->inputs[0]->frame_rate, (AVRational){2,1});

-    if (link->w < 3 || link->h < 3) {
-        av_log(ctx, AV_LOG_ERROR, "Video of less than 3 columns or lines is not supported\n");
+    if (link->w < 3 || link->h < 4) {
+        av_log(ctx, AV_LOG_ERROR, "Video of less than 3 columns or 4 lines is not supported\n");
        return AVERROR(EINVAL);
    }