ffmpeg | branch: master | Michael Niedermayer <[email protected]> | Fri Feb 24 13:11:43 2017 +0100| [2b8b7921c55a93049a86cfeb2fda9423d16f8ebe] | committer: Michael Niedermayer
avcodec/vp3dsp: Fix multiple signed integer overflow: 46341 * 47523 cannot be represented in type 'int' Fixes: 664/clusterfuzz-testcase-4917047475568640 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <[email protected]> > http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=2b8b7921c55a93049a86cfeb2fda9423d16f8ebe --- libavcodec/vp3dsp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/libavcodec/vp3dsp.c b/libavcodec/vp3dsp.c index 814c78e..4b6c838 100644 --- a/libavcodec/vp3dsp.c +++ b/libavcodec/vp3dsp.c @@ -41,7 +41,7 @@ #define xC6S2 25080 #define xC7S1 12785 -#define M(a, b) (((a) * (b)) >> 16) +#define M(a, b) ((int)((SUINT)(a) * (b)) >> 16) static av_always_inline void idct(uint8_t *dst, int stride, int16_t *input, int type) _______________________________________________ ffmpeg-cvslog mailing list [email protected] http://ffmpeg.org/mailman/listinfo/ffmpeg-cvslog
