| Message ID | 20170918005458.5989-1-michael@niedermayer.cc |
|---|---|
| State | Accepted |
| Commit | 67da2685e03805230207daab83ab43a390fbb887 |
| Headers | show |
On Mon, Sep 18, 2017 at 02:54:58AM +0200, Michael Niedermayer wrote: > Fixes: runtime error: signed integer overflow: 161 * 13872281 cannot be represented in type 'int' > > Fixes: 3295/clusterfuzz-testcase-minimized-4738998142500864 > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> > --- > libavcodec/dirac_dwt.h | 4 ++-- > 1 file changed, 2 insertions(+), 2 deletions(-) applied [...]
diff --git a/libavcodec/dirac_dwt.h b/libavcodec/dirac_dwt.h index adf5178714..755d5e5d2d 100644 --- a/libavcodec/dirac_dwt.h +++ b/libavcodec/dirac_dwt.h @@ -111,10 +111,10 @@ void ff_spatial_idwt_slice2(DWTContext *d, int y); (b0 + b1) #define COMPOSE_FIDELITYiL0(b0, b1, b2, b3, b4, b5, b6, b7, b8)\ - (b4 - ((-8*(b0+b8) + 21*(b1+b7) - 46*(b2+b6) + 161*(b3+b5) + 128) >> 8)) + (b4 - ((int)(-8*(b0+(unsigned)b8) + 21*(b1+(unsigned)b7) - 46*(b2+(unsigned)b6) + 161*(b3+(unsigned)b5) + 128) >> 8)) #define COMPOSE_FIDELITYiH0(b0, b1, b2, b3, b4, b5, b6, b7, b8)\ - (b4 + ((-2*(b0+b8) + 10*(b1+b7) - 25*(b2+b6) + 81*(b3+b5) + 128) >> 8)) + (b4 + ((int)(-2*(b0+(unsigned)b8) + 10*(b1+(unsigned)b7) - 25*(b2+(unsigned)b6) + 81*(b3+(unsigned)b5) + 128) >> 8)) #define COMPOSE_DAUB97iL1(b0, b1, b2)\ (b1 - ((int)(1817*(b0 + (unsigned)b2) + 2048) >> 12))
Fixes: runtime error: signed integer overflow: 161 * 13872281 cannot be represented in type 'int' Fixes: 3295/clusterfuzz-testcase-minimized-4738998142500864 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/dirac_dwt.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)