| Message ID | 20170728012240.5464-2-michael@niedermayer.cc |
|---|---|
| State | Accepted |
| Commit | bf8ab72ae95bb11f2c281d464594c2f6ba70326b |
| Headers | show |
On Fri, Jul 28, 2017 at 03:22:40AM +0200, Michael Niedermayer wrote: > Fixes: runtime error: signed integer overflow: 9 * 335544320 cannot be represented in type 'int' > Fixes: 2739/clusterfuzz-testcase-minimized-6737297955356672 > > 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 | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) applied [...]
diff --git a/libavcodec/dirac_dwt.h b/libavcodec/dirac_dwt.h index 4d338651fa..62f8472b41 100644 --- a/libavcodec/dirac_dwt.h +++ b/libavcodec/dirac_dwt.h @@ -99,7 +99,7 @@ void ff_spatial_idwt_slice2(DWTContext *d, int y); (b1 + ((b0 + b2 + 1) >> 1)) #define COMPOSE_DD97iH0(b0, b1, b2, b3, b4)\ - (b2 + ((-b0 + 9*b1 + 9*b3 - b4 + 8) >> 4)) + (b2 + ((int)(-b0 + 9U*b1 + 9U*b3 - b4 + 8) >> 4)) #define COMPOSE_DD137iL0(b0, b1, b2, b3, b4)\ (b2 - ((-b0 + 9*b1 + 9*b3 - b4 + 16) >> 5))
Fixes: runtime error: signed integer overflow: 9 * 335544320 cannot be represented in type 'int' Fixes: 2739/clusterfuzz-testcase-minimized-6737297955356672 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 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)