shithub: libvpx

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Fix stack overrun in calculating segmentation map coding method.

This caused spurious crashes on encodes, frustratingly often only on
high-definition material.

Change-Id: Ia8c1dfc420d598ca92108bd9cc2df7450e8d10a2

--- a/vp8/encoder/segmentation.c

+++ b/vp8/encoder/segmentation.c

@@ -111,7 +111,8 @@

   int i;

   // Blank the strtucture to start with

-  vpx_memset(segment_tree_probs, 0, sizeof(segment_tree_probs));

+  vpx_memset(segment_tree_probs, 0,

+             MB_FEATURE_TREE_PROBS * sizeof(*segment_tree_probs));

   // Total count for all segments

   count1 = segcounts[0] + segcounts[1];

-- 

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