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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-28 17:12:35 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-06-05 23:16:54 +0200 |
| commit | 1d88ec2fb0e6d92ceb4d94cf54756d0c0880bd80 (patch) | |
| tree | a1491058fc40455a5b76e48e810bab6eeb0baf23 | |
| parent | 65f38d1285f30f277c6ec3b248eb7402a0fbb3d3 (diff) | |
| download | ffmpeg-1d88ec2fb0e6d92ceb4d94cf54756d0c0880bd80.tar.gz | |
avcodec/snow: Fix runtime error: signed integer overflow: 1086573993 + 1086573994 cannot be represented in type 'int'
Fixes: 1871/clusterfuzz-testcase-minimized-5719950331215872
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit b9c032ebc0ad17ac0ffefb915ff96baf9d79cab1)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/snow.h | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/libavcodec/snow.h b/libavcodec/snow.h index fd58f72cdf..0778f2af4d 100644 --- a/libavcodec/snow.h +++ b/libavcodec/snow.h @@ -561,7 +561,8 @@ static inline int get_symbol(RangeCoder *c, uint8_t *state, int is_signed){ if(get_rac(c, state+0)) return 0; else{ - int i, e, a; + int i, e; + unsigned a; e= 0; while(get_rac(c, state+1 + FFMIN(e,9))){ //1..10 e++; |