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| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-09 00:14:44 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-05-09 00:42:20 +0200 |
| commit | 28230a690e73deca54eac9ae98bbcb2cecc27dd6 (patch) | |
| tree | 96bff8999b3d1c10dcce5ffd80bb743538b76c10 /libavcodec/clearvideo.c | |
| parent | 159fb8ff7e4038edf13e91d3c08bc7b8abc369b9 (diff) | |
| download | ffmpeg-28230a690e73deca54eac9ae98bbcb2cecc27dd6.tar.gz | |
avcodec/clearvideo: Fix runtime error: signed integer overflow: 181 * 18050756 cannot be represented in type 'int'
Fixes: 1417/clusterfuzz-testcase-minimized-6606778030620672
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/clearvideo.c')
| -rw-r--r-- | libavcodec/clearvideo.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/libavcodec/clearvideo.c b/libavcodec/clearvideo.c index 060affeafd..27b00ce820 100644 --- a/libavcodec/clearvideo.c +++ b/libavcodec/clearvideo.c @@ -189,8 +189,8 @@ static inline int decode_block(CLVContext *ctx, int16_t *blk, int has_ac, const int t7 = ((blk[0 * step] - blk[4 * step]) * (1 << dshift)) + bias; \ const int t8 = t0 + t2; \ const int t9 = t0 - t2; \ - const int tA = 181 * (t9 + (t1 - t3)) + 0x80 >> 8; \ - const int tB = 181 * (t9 - (t1 - t3)) + 0x80 >> 8; \ + const int tA = (int)(181U * (t9 + (t1 - t3)) + 0x80) >> 8; \ + const int tB = (int)(181U * (t9 - (t1 - t3)) + 0x80) >> 8; \ const int tC = t1 + t3; \ \ blk[0 * step] = (t6 + t5 + t8) >> shift; \ |