diff --git a/cmd/gvmap/make_map.c b/cmd/gvmap/make_map.c
index 04a71aa4b3b84c53b064408db5ed3d2a1ca58de5..480cf9823436a71152867b1acd50b4b1c868f8b5 100644
--- a/cmd/gvmap/make_map.c
+++ b/cmd/gvmap/make_map.c
@@ -1891,11 +1891,14 @@ int make_map_internal(int exclude_random, int include_OK_points,
     xran = MALLOC(sizeof(real)*(*nrandom + 4)*dim2);
     nz = 0;
     if (INCLUDE_OK_POINTS){
-      int *grouping2;
       nzok0 = nzok = *nrandom - 1;/* points that are within tolerance of real or artificial points */
-      grouping2 = MALLOC(sizeof(int)*(n + *nrandom));
-      memcpy(grouping2, grouping, sizeof(int)*n);
-      grouping = grouping2;
+      if (grouping == grouping0) {
+        int *grouping2 = MALLOC(sizeof(int)*(n + *nrandom));
+        memcpy(grouping2, grouping, sizeof(int)*n);
+        grouping = grouping2;
+      } else {
+        grouping = REALLOC(grouping, sizeof(int)*(n + *nrandom));
+      }
     }
     nn = n;
 
diff --git a/lib/sparse/clustering.c b/lib/sparse/clustering.c
index 86fe04e29a2ab0457937879b22e72c41c64b509a..ae4eeb33a66373383e0fa4d564f032f9a482b6d2 100644
--- a/lib/sparse/clustering.c
+++ b/lib/sparse/clustering.c
@@ -223,9 +223,15 @@ static Multilevel_Modularity_Clustering Multilevel_Modularity_Clustering_establi
     SparseMatrix_delete(R0);
     P = SparseMatrix_transpose(R);
     B = SparseMatrix_multiply(R, A);
-    if (!B) goto RETURN;
+    if (!B) {
+      FREE(deg_new);
+      goto RETURN;
+    }
     cA = SparseMatrix_multiply(B, P); 
-    if (!cA) goto RETURN;
+    if (!cA) {
+      FREE(deg_new);
+      goto RETURN;
+    }
     SparseMatrix_delete(B);
     grid->P = P;
     grid->R = R;
diff --git a/lib/sparse/mq.c b/lib/sparse/mq.c
index 5fb0658d8778808a6bfddae20c9c0c62706f5736..bdf40575f49c038421cdf9f4a67d2375306a00d1 100644
--- a/lib/sparse/mq.c
+++ b/lib/sparse/mq.c
@@ -471,9 +471,19 @@ static Multilevel_MQ_Clustering Multilevel_MQ_Clustering_establish(Multilevel_MQ
     SparseMatrix_delete(R0);
     P = SparseMatrix_transpose(R);
     B = SparseMatrix_multiply(R, A);
-    if (!B) goto RETURN;
+    if (!B) {
+        FREE(deg_intra_new);
+        FREE(wgt_new);
+        FREE(dout_new);
+        goto RETURN;
+    }
     cA = SparseMatrix_multiply(B, P); 
-    if (!cA) goto RETURN;
+    if (!cA) {
+        FREE(deg_intra_new);
+        FREE(wgt_new);
+        FREE(dout_new);
+        goto RETURN;
+    }
     SparseMatrix_delete(B);
     grid->P = P;
     grid->R = R;
diff --git a/plugin/pango/gvgetfontlist_pango.c b/plugin/pango/gvgetfontlist_pango.c
index c6afc42aacec3ce9e572b2283b58b3e5bcb07d96..6bb7bcdfe94e178d630f196a6befc2e9a6e73539 100644
--- a/plugin/pango/gvgetfontlist_pango.c
+++ b/plugin/pango/gvgetfontlist_pango.c
@@ -407,6 +407,7 @@ static availfont_t *gv_get_ps_fontlist(PangoFontMap * fontmap)
 	} else {
 	    gv_afs->fontname = NULL;
 	    gv_afs->faces = 0;
+	    free(family_name);
 	}
     }
     g_free(families);