[FFmpeg-devel] [PATCH] avfilter/vf_bwdif: fix heap-buffer overflow

[Paul B Mahol]

Fixes #8261

Signed-off-by: Paul B Mahol <onemda at gmail.com>
---
 libavfilter/vf_bwdif.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/libavfilter/vf_bwdif.c b/libavfilter/vf_bwdif.c
index 37165584cf..b6aed7a450 100644
--- 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);
     }
 
-- 
2.17.1