Message ID | 20190825184158.10244-4-michael@niedermayer.cc |
---|---|
State | New |
Headers | show |
On Sun, Aug 25, 2019 at 08:41:56PM +0200, Michael Niedermayer wrote: > Fixes: signed integer overflow: -2424832 - 2145653689 cannot be represented in type 'int' > Fixes: 16138/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TAK_fuzzer-5643451346976768 > > 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(-) will apply [...]
diff --git a/libavcodec/takdec.c b/libavcodec/takdec.c index 0439a3ac9b..4fb5825532 100644 --- a/libavcodec/takdec.c +++ b/libavcodec/takdec.c @@ -653,7 +653,7 @@ static int decorrelate(TAKDecContext *s, int c1, int c2, int length) s->residues[i ] * s->filter[0]; } - v = av_clip_intp2(v >> 10, 13) * (1 << dshift) - *p1; + v = av_clip_intp2(v >> 10, 13) * (1U << dshift) - *p1; *p1++ = v; }
Fixes: signed integer overflow: -2424832 - 2145653689 cannot be represented in type 'int' Fixes: 16138/clusterfuzz-testcase-minimized-ffmpeg_AV_CODEC_ID_TAK_fuzzer-5643451346976768 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(-)