1 files changed, 7 insertions, 0 deletions
diff --git a/libavcodec/jpeg2000dec.c b/libavcodec/jpeg2000dec.c
index d0608f97f4..2abba868a4 100644
--- a/libavcodec/jpeg2000dec.c
+++ b/libavcodec/jpeg2000dec.c
@@ -343,6 +343,13 @@ static int get_cod(Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *c,
     tmp.nlayers    = bytestream2_get_be16u(&s->g);
     tmp.mct        = bytestream2_get_byteu(&s->g); // multiple component transformation
 
+    if (tmp.mct && s->ncomponents < 3) {
+        av_log(s->avctx, AV_LOG_ERROR,
+               "MCT %d with too few components (%d)\n",
+               tmp.mct, s->ncomponents);
+        return AVERROR_INVALIDDATA;
+    }
+
     if ((ret = get_cox(s, &tmp)) < 0)
         return ret;