From 3dfbdb328ed9e88cebc6462c56cfe61e55850b2e Mon Sep 17 00:00:00 2001 From: Michael Niedermayer Date: Mon, 4 May 2015 13:25:31 +0200 Subject: [PATCH] avcodec/ffv1dec: Check quant table symbols more completely Signed-off-by: Michael Niedermayer --- libavcodec/ffv1dec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/ffv1dec.c b/libavcodec/ffv1dec.c index 78d947a..621aac7 100644 --- a/libavcodec/ffv1dec.c +++ b/libavcodec/ffv1dec.c @@ -476,7 +476,7 @@ static int read_quant_table(RangeCoder *c, int16_t *quant_table, int scale) for (v = 0; i < 128; v++) { unsigned len = get_symbol(c, state, 0) + 1; - if (len > 128 - i) + if (len > 128 - i || !len) return AVERROR_INVALIDDATA; while (len--) { -- 2.7.4