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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-14 14:06:56 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-14 15:30:08 +0200 |
| commit | b923213276777f33d6366b1cb9d1845a8658f365 (patch) | |
| tree | 35a8b5d038c5292567fcd3cc890f1b300b74a43e /libavcodec/hqxdsp.c | |
| parent | f2c539d3501111f10a2b4e9480ea54c0a3190680 (diff) | |
| download | ffmpeg-streaming-b923213276777f33d6366b1cb9d1845a8658f365.zip ffmpeg-streaming-b923213276777f33d6366b1cb9d1845a8658f365.tar.gz | |
avcodec/hqxdsp: Fix runtime error: signed integer overflow: -196264 * 11585 cannot be represented in type 'int'
Fixes: 1568/clusterfuzz-testcase-minimized-5944868608147456
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/hqxdsp.c')
| -rw-r--r-- | libavcodec/hqxdsp.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/hqxdsp.c b/libavcodec/hqxdsp.c index 04a65e7..7f8044e 100644 --- a/libavcodec/hqxdsp.c +++ b/libavcodec/hqxdsp.c @@ -47,8 +47,8 @@ static inline void idct_col(int16_t *blk, const uint8_t *quant) t5 = t1 * 2 + t3; t6 = t2 - t3; t7 = t3 * 2 + t6; - t8 = (t6 * 11585) >> 14; - t9 = (t7 * 11585) >> 14; + t8 = (int)(t6 * 11585U) >> 14; + t9 = (int)(t7 * 11585U) >> 14; tA = (int)(s2 * 8867U - s6 * 21407U) >> 14; tB = (int)(s6 * 8867U + s2 * 21407U) >> 14; tC = (s0 >> 1) - (s4 >> 1); |
