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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-02-21 17:32:56 +0100 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-08-23 13:15:16 +0200 |
| commit | 0081ccd8bdb8a72ca0bf982009b876235e9529a4 (patch) | |
| tree | 618ed398d2050eef69c46c009b52ebca2883d0d5 | |
| parent | 7d47aad28b8e869908d8f740c27ab444d123176a (diff) | |
| download | ffmpeg-0081ccd8bdb8a72ca0bf982009b876235e9529a4.tar.gz | |
avcodec/ituh263dec: Fix runtime error: left shift of negative value -22
Fixes: 639/clusterfuzz-testcase-5143866241974272
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 631f7484918a9e7260377c3cea878be708609e64)
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/ituh263dec.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/ituh263dec.c b/libavcodec/ituh263dec.c index 89fc989a8a..44a649a53c 100644 --- a/libavcodec/ituh263dec.c +++ b/libavcodec/ituh263dec.c @@ -522,7 +522,7 @@ retry: }else{ level = SHOW_UBITS(re, &s->gb, 5); SKIP_CACHE(re, &s->gb, 5); - level |= SHOW_SBITS(re, &s->gb, 6)<<5; + level |= SHOW_SBITS(re, &s->gb, 6) * (1<<5); SKIP_COUNTER(re, &s->gb, 5 + 6); } } |