commit f087e96869b35f67db93f1a9a3df95d0dc9da883
from: Stefan Sperling <stsp@stsp.name>
date: Fri Oct 16 15:07:34 2020 UTC

check for allocation failure in diff_atoms_mark_unique_in_both_by_qsort()

commit - 34570dbeba22613374809c75a8ed2f119db01ec5
commit + f087e96869b35f67db93f1a9a3df95d0dc9da883
blob - ad806a685d86d1d9066a335ca6fa232798e391de
blob + ccc539a9a6b47881667a6b8d2c1c7b0fd71fe10c
--- lib/diff_patience.c
+++ lib/diff_patience.c
@@ -107,13 +107,17 @@ diff_atoms_mark_unique_in_both_by_qsort(struct diff_da
 {
 	struct diff_atom *a;
 	struct diff_atom *b;
-	struct diff_atom **all_atoms =
-		malloc((left->atoms.len + right->atoms.len)
-		       * sizeof(struct diff_atom*));
+	struct diff_atom **all_atoms;
 	unsigned int len = 0;
 	unsigned int i;
 	unsigned int unique_in_both_count = 0;
 	int rc;
+
+	all_atoms = calloc(left->atoms.len + right->atoms.len,
+	    sizeof(struct diff_atom *));
+	if (all_atoms == NULL)
+		return ENOMEM;
+
 	left->err = 0;
 	right->err = 0;
 	left->root->err = 0;