[FFmpeg-cvslog] avcodec/takdec: Fix runtime error: left shift of negative value -63
Michael Niedermayer
git at videolan.org
Tue Jun 6 01:03:13 EEST 2017
ffmpeg | branch: release/2.8 | Michael Niedermayer <michael at niedermayer.cc> | Sun May 21 02:46:55 2017 +0200| [45c9fe61d932040b3a638f054cd13fb99129c826] | committer: Michael Niedermayer
avcodec/takdec: Fix runtime error: left shift of negative value -63
Fixes: 1713/clusterfuzz-testcase-minimized-5791887476654080
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
(cherry picked from commit d66193252b4067144f11211f8f3e1d5a50146235)
Signed-off-by: Michael Niedermayer <michael at niedermayer.cc>
> http://git.videolan.org/gitweb.cgi/ffmpeg.git/?a=commit;h=45c9fe61d932040b3a638f054cd13fb99129c826
---
libavcodec/takdec.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/libavcodec/takdec.c b/libavcodec/takdec.c
index e7324645d3..873f74935c 100644
--- a/libavcodec/takdec.c
+++ b/libavcodec/takdec.c
@@ -857,7 +857,7 @@ static int tak_decode_frame(AVCodecContext *avctx, void *data,
if (s->sample_shift[chan] > 0)
for (i = 0; i < s->nb_samples; i++)
- decoded[i] <<= s->sample_shift[chan];
+ decoded[i] *= 1 << s->sample_shift[chan];
}
}
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