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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-02-21 05:05:32 +0300 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-02-21 17:31:06 +0300 |
| commit | 956472a3236cc8eaeba5147c55b51bde6005c898 (patch) | |
| tree | 4a1994ac8c5413df402e7b5feeebf65b00391501 /libavcodec/rv40.c | |
| parent | f4777d1b89c65166394a459399704fc034a782d6 (diff) | |
avcodec/rv40: Fix runtime error: left shift of negative value
Fixes: 630/clusterfuzz-testcase-6608718928019456
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
Diffstat (limited to 'libavcodec/rv40.c')
| -rw-r--r-- | libavcodec/rv40.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/rv40.c b/libavcodec/rv40.c index e5ba215b68..dfeebda838 100644 --- a/libavcodec/rv40.c +++ b/libavcodec/rv40.c @@ -189,7 +189,7 @@ static int rv40_decode_intra_types(RV34DecContext *r, GetBitContext *gb, int8_t A = ptr[-r->intra_types_stride + 1]; // it won't be used for the last coefficient in a row B = ptr[-r->intra_types_stride]; C = ptr[-1]; - pattern = A + (B << 4) + (C << 8); + pattern = A + B * (1 << 4) + C * (1 << 8); for(k = 0; k < MODE2_PATTERNS_NUM; k++) if(pattern == rv40_aic_table_index[k]) break; |