virtualenv/FFmpeg
1
0
Fork 0
mirror of https://github.com/FFmpeg/FFmpeg.git synced 2025-04-14 00:58:38 +02:00
Code Issues Releases Activity

avutil/softfloat: Fix multiple runtime error: left shift of negative value -8

Browse Source 
Fixes: 1352/clusterfuzz-testcase-minimized-5757565017260032

Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 35f3df0d76e28969fa77f2b865e2e40b3ba69722)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
This commit is contained in:
Michael Niedermayer 2017-05-06 00:13:05 +02:00
parent ddab43d3a8
commit 5dec065a4d
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
libavutil/softfloat.h
View File

@ -213,12 +213,12 @@ static av_unused void av_sincos_sf(int a, int *s, int *c)
int st, ct; int st, ct;
idx = a >> 26; idx = a >> 26;
sign = (idx << 27) >> 31; sign = (int32_t)((unsigned)idx << 27) >> 31;
cv = av_costbl_1_sf[idx & 0xf]; cv = av_costbl_1_sf[idx & 0xf];
cv = (cv ^ sign) - sign; cv = (cv ^ sign) - sign;
idx -= 8; idx -= 8;
sign = (idx << 27) >> 31; sign = (int32_t)((unsigned)idx << 27) >> 31;
sv = av_costbl_1_sf[idx & 0xf]; sv = av_costbl_1_sf[idx & 0xf];
sv = (sv ^ sign) - sign; sv = (sv ^ sign) - sign;