From 70e0553792ea708ac1cc086112f331f7498b516d Mon Sep 17 00:00:00 2001
From: Ray Speth <speth@mit.edu>
Date: Mon, 24 Mar 2014 21:37:16 +0000
Subject: [PATCH] [Numerics] Fix invalid dereference in SquareMatrix::factor

The work array hasn't always been allocated, so taking its address isn't
necessarily valid. Also, dlange doesn't use the work array in the '1' norm
case anyway.

Cherry-pick of trunk commit 2830.
---
 src/numerics/SquareMatrix.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/numerics/SquareMatrix.cpp b/src/numerics/SquareMatrix.cpp
index 4e154e264..9dd1dbd24 100644
--- a/src/numerics/SquareMatrix.cpp
+++ b/src/numerics/SquareMatrix.cpp
@@ -131,7 +131,7 @@ int SquareMatrix::factor()
     if (useQR_) {
         return factorQR();
     }
-    a1norm_ = ct_dlange('1', m_nrows, m_nrows, &(*(begin())), m_nrows, DATA_PTR(work));
+    a1norm_ = ct_dlange('1', m_nrows, m_nrows, &(*(begin())), m_nrows, 0);
     integer n = static_cast<int>(nRows());
     int info=0;
     m_factored = 1;