| Message ID | 20170727214927.22553-1-michael@niedermayer.cc |
|---|---|
| State | Accepted |
| Commit | 2c630d159ffe8a9822e81f9c041652762b37e068 |
| Headers | show |
On Thu, Jul 27, 2017 at 11:49:26PM +0200, Michael Niedermayer wrote: > Fixes: runtime error: signed integer overflow: -536870912 - 1972191120 cannot be represented in type 'int' > Fixes: 2711/clusterfuzz-testcase-minimized-4975142398590976 > > Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg > Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> > --- > libavcodec/takdec.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) patchset applied [...]
diff --git a/libavcodec/takdec.c b/libavcodec/takdec.c index e555482b23..1676313b7c 100644 --- a/libavcodec/takdec.c +++ b/libavcodec/takdec.c @@ -491,7 +491,7 @@ static int decode_subframe(TAKDecContext *s, int32_t *decoded, s->residues[i + j + 1] * s->filter[j + 1] + s->residues[i + j ] * s->filter[j ]; } - v = (av_clip_intp2(v >> filter_quant, 13) * (1 << dshift)) - *decoded; + v = (av_clip_intp2(v >> filter_quant, 13) * (1 << dshift)) - (unsigned)*decoded; *decoded++ = v; s->residues[filter_order + i] = v >> dshift; }
Fixes: runtime error: signed integer overflow: -536870912 - 1972191120 cannot be represented in type 'int' Fixes: 2711/clusterfuzz-testcase-minimized-4975142398590976 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc> --- libavcodec/takdec.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)