[FFmpeg-devel] [PATCH 13/16] lavfi/drawutils: ensure we can't overflow a component

[rcombs]

---
 libavfilter/drawutils.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/libavfilter/drawutils.c b/libavfilter/drawutils.c
index 99c124822d..bcdb669bd3 100644
--- a/libavfilter/drawutils.c
+++ b/libavfilter/drawutils.c
@@ -112,6 +112,8 @@ int ff_draw_init(FFDrawContext *draw, enum AVPixelFormat format, unsigned flags)
         if (depthb && (depthb != db))
             return AVERROR(ENOSYS);
         depthb = db;
+        if (db * (c->offset + 1) > 16)
+            return AVERROR(ENOSYS);
         /* strange interleaving */
         if (pixelstep[c->plane] != 0 &&
             pixelstep[c->plane] != c->step)
-- 
2.33.1