[PATCH xserver] Avoid stack smash when drawing dashed lines

[Peter Harris]

X.org Bug 54013 <https://bugs.freedesktop.org/show_bug.cgi?id=54013>

Signed-off-by: Peter Harris <pharris at opentext.com>
---

See https://bugs.freedesktop.org/show_bug.cgi?id=54013 for a test case.

 mi/miwideline.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/mi/miwideline.c b/mi/miwideline.c
index ca18f15..b76e7a8 100644
--- a/mi/miwideline.c
+++ b/mi/miwideline.c
@@ -994,7 +994,7 @@ miLineProjectingCap(DrawablePtr pDrawable, GCPtr pGC, unsigned long pixel,
 {
     int xorgi = 0, yorgi = 0;
     int lw;
-    PolyEdgeRec lefts[2], rights[2];
+    PolyEdgeRec lefts[4], rights[4];
     int lefty, righty, topy, bottomy;
     PolyEdgePtr left, right;
     PolyEdgePtr top, bottom;
@@ -1166,7 +1166,7 @@ miWideSegment(DrawablePtr pDrawable,
     PolyEdgePtr top, bottom;
     int lefty, righty, topy, bottomy;
     int signdx;
-    PolyEdgeRec lefts[2], rights[2];
+    PolyEdgeRec lefts[4], rights[4];
     LineFacePtr tface;
     int lw = pGC->lineWidth;
 
@@ -1520,7 +1520,7 @@ miWideDashSegment(DrawablePtr pDrawable,
     PolyVertexRec vertices[4];
     PolyVertexRec saveRight, saveBottom;
     PolySlopeRec slopes[4];
-    PolyEdgeRec left[2], right[2];
+    PolyEdgeRec left[4], right[4];
     LineFaceRec lcapFace, rcapFace;
     int nleft, nright;
     int h;
-- 
1.7.10.4