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authorMichael Niedermayer <[email protected]>2013-01-31 04:20:24 +0100
committerMartin Storsjö <[email protected]>2015-01-15 10:17:01 +0200
commitdef69553e745e007925147b2e7e4b32c57d08fdf (patch)
treecb9c5ec478b8c2fa3e8925fc94c6b9cc3ae3126e
parent402fb5550e36dd994b13941ef5499f9087afd345 (diff)
h264_cabac: Break infinite loops
This fixes out of array reads and/or infinite loops. 30 is the maximum number of bits that can be read into coeff_abs below. CC: [email protected] Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind Signed-off-by: Martin Storsjö <[email protected]>
-rw-r--r--libavcodec/h264_cabac.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/h264_cabac.c b/libavcodec/h264_cabac.c
index 1e9162621c..0ad8ac0bde 100644
--- 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++; \
} \
\