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cavsdec: check run value validity 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2011-08-11 19:55:44 +02:00
parent 4ec8685435
commit 961a1a81d8
1 changed files with 2 additions and 0 deletions
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2
libavcodec/cavsdec.c
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@ -125,6 +125,8 @@ static int decode_residual_block(AVSContext *h, GetBitContext *gb,
level_code = get_ue_code(gb,r->golomb_order);
if(level_code >= ESCAPE_CODE) {
run = ((level_code - ESCAPE_CODE) >> 1) + 1;
if(run > 64)
return -1;
esc_code = get_ue_code(gb,esc_golomb_order);
level = esc_code + (run > r->max_run ? 1 : r->level_add[run]);
while(level > r->inc_limit)