diff options
| author | Michael Niedermayer <[email protected]> | 2020-06-28 00:21:09 +0200 |
|---|---|---|
| committer | Michael Niedermayer <[email protected]> | 2020-07-02 10:20:36 +0200 |
| commit | 199d6a049a90e03f0e61b6a859c9f0fe8ac69251 (patch) | |
| tree | edd19f463fc19276c3359a34b94a93ecc767be37 | |
| parent | f4affa071a622429f75da1cd3838f0bc0e0181d5 (diff) | |
avutil/common: Fix integer overflow in av_ceil_log2_c()
Fixes: left shift of 1913647649 by 1 places cannot be represented in type 'int'
Fixes: 23572/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_WMALOSSLESS_fuzzer-5082619795734528
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <[email protected]>
(cherry picked from commit e409262837712016097c187e97bf99aadf6a4cdf)
Signed-off-by: Michael Niedermayer <[email protected]>
| -rw-r--r-- | libavutil/common.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavutil/common.h b/libavutil/common.h index 2777cea9f9..92b721a59c 100644 --- a/libavutil/common.h +++ b/libavutil/common.h @@ -371,7 +371,7 @@ static av_always_inline av_const double av_clipd_c(double a, double amin, double */ static av_always_inline av_const int av_ceil_log2_c(int x) { - return av_log2((x - 1) << 1); + return av_log2((x - 1U) << 1); } /** |