From cf9a238a57d349f99143f1774abdd232ad8d9800 Mon Sep 17 00:00:00 2001
From: Matthew Fernandez <matthew.fernandez@gmail.com>
Date: Wed, 14 Sep 2022 17:47:27 -0700
Subject: [PATCH] sparse SparseMatrix_level_sets_internal: fix unchecked
 allocation failure

---
 lib/sparse/SparseMatrix.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lib/sparse/SparseMatrix.c b/lib/sparse/SparseMatrix.c
index 806063b12..8592bb529 100644
--- a/lib/sparse/SparseMatrix.c
+++ b/lib/sparse/SparseMatrix.c
@@ -12,6 +12,7 @@
 #include <string.h>
 #include <math.h>
 #include <assert.h>
+#include <cgraph/alloc.h>
 #include <common/memory.h>
 #include <common/arith.h>
 #include <limits.h>
@@ -1787,7 +1788,7 @@ static void SparseMatrix_level_sets_internal(int khops, SparseMatrix A, int root
   if (!(*levelset_ptr)) *levelset_ptr = MALLOC(sizeof(int)*((size_t)(m+2)));
   if (!(*levelset)) *levelset = MALLOC(sizeof(int)*((size_t)m));
   if (!(*mask)) {
-    *mask = malloc(sizeof(int)*((size_t)m));
+    *mask = gv_calloc((size_t)m, sizeof(int));
     for (i = 0; i < m; i++) (*mask)[i] = UNMASKED;
   }
 
-- 
2.50.1