[FFmpeg-cvslog] avcodec/h264_cabac: runtime error: signed integer overflow: 2147483647 + 14 cannot be represented in type 'int'

[Michael Niedermayer]

ffmpeg | branch: master | Michael Niedermayer <michael at niedermayer.cc> | Sun Feb 19 22:40:29 2017 +0100| [258763ad0e1efff82bbe2beb97527d3c19f40932] | committer: Michael Niedermayer

avcodec/h264_cabac: runtime error: signed integer overflow: 2147483647 + 14 cannot be represented in type 'int'

Fixes: 614/clusterfuzz-testcase-4931860079575040

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>

> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=258763ad0e1efff82bbe2beb97527d3c19f40932
---

 libavcodec/h264_cabac.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/h264_cabac.c b/libavcodec/h264_cabac.c
index fe83425..17a4bda 100644
--- a/libavcodec/h264_cabac.c
+++ b/libavcodec/h264_cabac.c
@@ -1743,7 +1743,7 @@ decode_cabac_residual_internal(const H264Context *h, H264SliceContext *sl,
                 while( j-- ) { \
                     coeff_abs += coeff_abs + get_cabac_bypass( CC ); \
                 } \
-                coeff_abs+= 14; \
+                coeff_abs+= 14U; \
             } \
 \
             if( is_dc ) { \