avcodec/wavpack: Change wp_log2() to unsigned

Fixes: runtime error: signed integer overflow: 2143315325 + 4186162 cannot be represented in type 'int'
Fixes: 2134/clusterfuzz-testcase-minimized-4619258405322752

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-06-09 13:49:30 +02:00
parent e77ddd31a8
commit 16d6cc2168

View File

@ -177,7 +177,7 @@ static av_always_inline int wp_exp2(int16_t val)
return neg ? -res : res;
}
static av_always_inline int wp_log2(int32_t val)
static av_always_inline int wp_log2(uint32_t val)
{
int bits;