| Message ID | 20170918230453.19774-1-michael@niedermayer.cc |
|---|---|
| State | Accepted |
| Commit | 2c933c51687db958d8045d25ed87848342e869f6 |
| Headers | show |
On Tue, Sep 19, 2017 at 01:04:52AM +0200, Michael Niedermayer wrote: > Fixes: runtime error: signed integer overflow: 2147392585 + 524288 cannot be represented in type 'int' > Fixes: 3348/clusterfuzz-testcase-minimized-4809500517203968 > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> > --- > libavcodec/svq3.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) patchset applied [...]
diff --git a/libavcodec/svq3.c b/libavcodec/svq3.c index a766fa49ad..5cb5bd45b7 100644 --- a/libavcodec/svq3.c +++ b/libavcodec/svq3.c @@ -285,7 +285,7 @@ static void svq3_add_idct_c(uint8_t *dst, int16_t *block, const unsigned z1 = 13 * (block[i + 4 * 0] - block[i + 4 * 2]); const unsigned z2 = 7 * block[i + 4 * 1] - 17 * block[i + 4 * 3]; const unsigned z3 = 17 * block[i + 4 * 1] + 7 * block[i + 4 * 3]; - const int rr = (dc + 0x80000); + const int rr = (dc + 0x80000u); dst[i + stride * 0] = av_clip_uint8(dst[i + stride * 0] + ((int)((z0 + z3) * qmul + rr) >> 20)); dst[i + stride * 1] = av_clip_uint8(dst[i + stride * 1] + ((int)((z1 + z2) * qmul + rr) >> 20));
Fixes: runtime error: signed integer overflow: 2147392585 + 524288 cannot be represented in type 'int' Fixes: 3348/clusterfuzz-testcase-minimized-4809500517203968 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/svq3.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)