h264/cabac: check loop index

fix out of array read Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
12 years ago · cdf0877bc3
parent fe6767f849
commit cdf0877bc3
1 changed files with 1 additions and 1 deletions
--- a/libavcodec/h264_cabac.c
+++ b/libavcodec/h264_cabac.c
@ -1712,7 +1712,7 @@ decode_cabac_residual_internal(H264Context *h, int16_t *block,
 \
            if( coeff_abs >= 15 ) { \
                int j = 0; \
-                while( get_cabac_bypass( CC ) ) { \
+                while(get_cabac_bypass( CC ) && j<30) { \
                    j++; \
                } \
 \