diff --git a/builtin/add.c b/builtin/add.c
index 87446cf92a..89dce56a24 100644
--- a/builtin/add.c
+++ b/builtin/add.c
@@ -281,7 +281,7 @@ static int edit_patch(int argc, const char **argv, const char *prefix)
 	argc = setup_revisions(argc, argv, &rev, NULL);
 	rev.diffopt.output_format = DIFF_FORMAT_PATCH;
 	DIFF_OPT_SET(&rev.diffopt, IGNORE_DIRTY_SUBMODULES);
-	out = open(file, O_CREAT | O_WRONLY, 0644);
+	out = open(file, O_CREAT | O_WRONLY, 0666);
 	if (out < 0)
 		die (_("Could not open '%s' for writing."), file);
 	rev.diffopt.file = xfdopen(out, "w");
diff --git a/builtin/clone.c b/builtin/clone.c
index d3b7fdccec..e314b0b6d2 100644
--- a/builtin/clone.c
+++ b/builtin/clone.c
@@ -708,7 +708,7 @@ int cmd_clone(int argc, const char **argv, const char *prefix)
 		if (safe_create_leading_directories_const(work_tree) < 0)
 			die_errno(_("could not create leading directories of '%s'"),
 				  work_tree);
-		if (!dest_exists && mkdir(work_tree, 0755))
+		if (!dest_exists && mkdir(work_tree, 0777))
 			die_errno(_("could not create work tree dir '%s'."),
 				  work_tree);
 		set_git_work_tree(work_tree);
diff --git a/rerere.c b/rerere.c
index da18fc37df..b57a34daa7 100644
--- a/rerere.c
+++ b/rerere.c
@@ -524,7 +524,7 @@ static int do_plain_rerere(struct string_list *rr, int fd)
 				continue;
 			hex = xstrdup(sha1_to_hex(sha1));
 			string_list_insert(rr, path)->util = hex;
-			if (mkdir(git_path("rr-cache/%s", hex), 0755))
+			if (mkdir_in_gitdir(git_path("rr-cache/%s", hex)))
 				continue;
 			handle_file(path, NULL, rerere_path(hex, "preimage"));
 			fprintf(stderr, "Recorded preimage for '%s'\n", path);