Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
@@ -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--) {