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authorMichael Niedermayer <michael@niedermayer.cc>2017-05-05 03:24:40 +0200
committerMichael Niedermayer <michael@niedermayer.cc>2017-05-05 04:25:07 +0200
commita0e5f7f363555d2befafb1c9e1579dbe0a2fbca7 (patch)
tree472bb2fcd193030c91250b5d3c60c771a350ebf4
parentce7098b8f2b59c62b5abdb3d74819db75cf67698 (diff)
avcodec/cavsdec: Fix undefined behavior from integer overflow
Fixes: 1335/clusterfuzz-testcase-minimized-5566961566089216 Found-by: continuous fuzzing process https://github.com/google/oss-fuzz/tree/master/targets/ffmpeg Signed-off-by: Michael Niedermayer <michael@niedermayer.cc>
-rw-r--r--libavcodec/cavsdec.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/libavcodec/cavsdec.c b/libavcodec/cavsdec.c
index 6f4d6aca69..4d3d2d7c65 100644
--- a/libavcodec/cavsdec.c
+++ b/libavcodec/cavsdec.c
@@ -465,7 +465,7 @@ static inline void mv_pred_direct(AVSContext *h, cavs_vector *pmv_fw,
cavs_vector *col_mv)
{
cavs_vector *pmv_bw = pmv_fw + MV_BWD_OFFS;
- int den = h->direct_den[col_mv->ref];
+ unsigned den = h->direct_den[col_mv->ref];
int m = FF_SIGNBIT(col_mv->x);
pmv_fw->dist = h->dist[1];