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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-05 18:01:25 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-08-23 13:15:17 +0200 |
| commit | 90ea514d75ec29188012040e5451ae91da1b4dc7 (patch) | |
| tree | 5c95a01b2f2ab283436a9285a5c636b459da0660 | |
| parent | 2341bd7558e4db51f04586a66fa63944d8382b62 (diff) | |
| download | ffmpeg-90ea514d75ec29188012040e5451ae91da1b4dc7.tar.gz | |
avcodec/wnv1: Fix runtime error: left shift of negative value -1
Fixes: 1338/clusterfuzz-testcase-minimized-6485546354343936
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
(cherry picked from commit 9fac508ca46f93450ec232299dfd15ac70b6f326)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/wnv1.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/wnv1.c b/libavcodec/wnv1.c index 99aee3cd1c..cbf271afc6 100644 --- a/libavcodec/wnv1.c +++ b/libavcodec/wnv1.c @@ -52,7 +52,7 @@ static inline int wnv1_get_code(WNV1Context *w, int base_value) if (v == 15) return ff_reverse[get_bits(&w->gb, 8 - w->shift)]; else - return base_value + ((v - 7) << w->shift); + return base_value + ((v - 7U) << w->shift); } static int decode_frame(AVCodecContext *avctx, |