RepoMirrors/ffmpeg
1
0
Fork 0
mirror of https://git.ffmpeg.org/ffmpeg.git synced 2024-12-25 16:52:31 +00:00
Code Issues Projects Releases Wiki Activity

avcodec/h264_cabac: Tighten allowed coeff_abs range

Browse Source 
Fixes: integer overflows
Reported-by: "Xiaohan Wang (王消寒)" <xhwang@chromium.org>

Based on limits in "8.5 Transform coefficient decoding process and picture
construction process prior to deblocking  filter process"

Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2018-02-14 00:32:30 +01:00
parent fb580731c1
commit f26a63c4ee
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
libavcodec/h264_cabac.c
View File

@ -1735,7 +1735,7 @@ decode_cabac_residual_internal(const H264Context *h, H264SliceContext *sl,
\
if( coeff_abs >= 15 ) { \
int j = 0; \
while (get_cabac_bypass(CC) && j < 30) { \
while (get_cabac_bypass(CC) && j < 16+7) { \
j++; \
} \
\