From b6e67174c3968e76b54fe757e2608990d0fdae56 Mon Sep 17 00:00:00 2001
From: "sy.avinash" <sy.avinash@globaledgesoftware.corp-partner.google.com>
Date: Thu, 27 May 2021 11:51:16 +0000
Subject: [PATCH 03/19] Fix dhcpcd running as a regular user.

Update the lease file permission to 0600 to prevent other
users from reading the lease file.

BUG=chromium-os:28336
TEST=Build and boot an image, network still works.
TEST=New lease files are created with 0600 permissions.

Reviewed-on: https://gerrit.chromium.org/gerrit/22644
---
 src/dhcp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/dhcp.c b/src/dhcp.c
index 3591ce1f..1ff59a1a 100644
--- a/src/dhcp.c
+++ b/src/dhcp.c
@@ -1158,7 +1158,7 @@ write_lease(const struct interface *ifp, const struct bootp *bootp, size_t len)
 
 	logdebugx("%s: writing lease `%s'", ifp->name, state->leasefile);
 
-	fd = open(state->leasefile, O_WRONLY | O_CREAT | O_TRUNC, 0644);
+	fd = open(state->leasefile, O_WRONLY | O_CREAT | O_TRUNC, 0600);
 	if (fd == -1)
 		return -1;
 
-- 
2.33.0.800.g4c38ced690-goog