diff options
| author | Michael Niedermayer <michael@niedermayer.cc> | 2017-08-11 18:20:03 +0200 |
|---|---|---|
| committer | Michael Niedermayer <michael@niedermayer.cc> | 2017-08-11 18:21:06 +0200 |
| commit | 62702eebded6c6341d214405812a981f80e46ea2 (patch) | |
| tree | 8e9f3df7372d2d2dce04bf69b783328c5be2eeb8 | |
| parent | 7735ed29741d985e1e670249ca56e7a1ce18b729 (diff) | |
| download | ffmpeg-62702eebded6c6341d214405812a981f80e46ea2.tar.gz | |
avcodec/ffv1dec_template: Fix undefined shift
Fixes: runtime error: left shift of negative value -127
Fixes: 2834/clusterfuzz-testcase-minimized-5988039123795968
Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/projects/ffmpeg
Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
| -rw-r--r-- | libavcodec/ffv1dec_template.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/ffv1dec_template.c b/libavcodec/ffv1dec_template.c index 61cdc90116..d41d807e64 100644 --- a/libavcodec/ffv1dec_template.c +++ b/libavcodec/ffv1dec_template.c @@ -149,7 +149,7 @@ static void RENAME(decode_rgb_frame)(FFV1Context *s, uint8_t *src[3], int w, int } if (lbd) - *((uint32_t*)(src[0] + x*4 + stride[0]*y)) = b + (g<<8) + (r<<16) + (a<<24); + *((uint32_t*)(src[0] + x*4 + stride[0]*y)) = b + ((unsigned)g<<8) + ((unsigned)r<<16) + ((unsigned)a<<24); else if (sizeof(TYPE) == 4) { *((uint16_t*)(src[0] + x*2 + stride[0]*y)) = g; *((uint16_t*)(src[1] + x*2 + stride[1]*y)) = b; |