diff --git a/libavcodec/jpeg2000dec.c b/libavcodec/jpeg2000dec.c index ac44a29ff1..172314f40a 100644 --- a/libavcodec/jpeg2000dec.c +++ b/libavcodec/jpeg2000dec.c @@ -119,6 +119,9 @@ static int tag_tree_decode(Jpeg2000DecoderContext *s, Jpeg2000TgtNode *node, Jpeg2000TgtNode *stack[30]; int sp = -1, curval = 0; + if (!node) + return AVERROR_INVALIDDATA; + while (node && !node->vis) { stack[++sp] = node; node = node->parent;