| Message ID | 20180120035029.20387-1-michael@niedermayer.cc |
|---|---|
| State | Accepted |
| Commit | 56a53340ed4cc55898e49c07081311ebb2816630 |
| Headers | show |
On Sat, Jan 20, 2018 at 04:50:29AM +0100, Michael Niedermayer wrote: > Fixes: signed integer overflow: 1477974040 - -1877995504 cannot be represented in type 'int' > Fixes: 4861/clusterfuzz-testcase-minimized-4570316383715328 > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> > --- > libavcodec/truemotion2.c | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) applied [...]
diff --git a/libavcodec/truemotion2.c b/libavcodec/truemotion2.c index f077f0e4bd..97c38f7f08 100644 --- a/libavcodec/truemotion2.c +++ b/libavcodec/truemotion2.c @@ -441,8 +441,8 @@ static inline int GET_TOK(TM2Context *ctx,int type) /* recalculate last and delta values for next blocks */ #define TM2_RECALC_BLOCK(CHR, stride, last, CD) {\ - CD[0] = CHR[1] - last[1];\ - CD[1] = (int)CHR[stride + 1] - (int)CHR[1];\ + CD[0] = (unsigned)CHR[ 1] - (unsigned)last[1];\ + CD[1] = (unsigned)CHR[stride + 1] - (unsigned) CHR[1];\ last[0] = (int)CHR[stride + 0];\ last[1] = (int)CHR[stride + 1];}
Fixes: signed integer overflow: 1477974040 - -1877995504 cannot be represented in type 'int' Fixes: 4861/clusterfuzz-testcase-minimized-4570316383715328 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/truemotion2.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)