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| author | Michael Niedermayer <michael@niedermayer.cc> | 2020-06-28 00:21:09 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2020-07-05 01:47:57 +0200 |
| commit | 0c4fcdead84d9ca22b36e72a0b5ee2228c745a22 (patch) | |
| tree | 35f771b96ccd51b55f2113df3500e02b063ffe66 | |
| parent | e02303282d5098c725ca710987ed2b79ef93eb5d (diff) | |
| download | ffmpeg-0c4fcdead84d9ca22b36e72a0b5ee2228c745a22.tar.gz | |
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 <michael@niedermayer.cc>
(cherry picked from commit e409262837712016097c187e97bf99aadf6a4cdf)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -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 8db0291170..bad43e426e 100644 --- a/libavutil/common.h +++ b/libavutil/common.h @@ -331,7 +331,7 @@ 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); } /** |