From 5660e68d651545b43e13a51b068e64022637a6c6 Mon Sep 17 00:00:00 2001
From: Yu Watanabe <[email protected]>
Date: Wed, 28 Sep 2022 18:09:29 +0900
Subject: [PATCH] udev-builtin-net_id: fix potential buffer overflow

Conflict:NA
Reference:https://github.com/systemd/systemd-stable/commit/5660e68d651545b43e13a51b068e64022637a6c6

---
 src/udev/udev-builtin-net_id.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/udev/udev-builtin-net_id.c b/src/udev/udev-builtin-net_id.c
index 4936ba518a..d1f343573d 100644
--- a/src/udev/udev-builtin-net_id.c
+++ b/src/udev/udev-builtin-net_id.c
@@ -948,11 +948,11 @@ static int names_usb(sd_device *dev, NetNames *names) {
 
         /* append USB config number, suppress the common config == 1 */
         if (!streq(config, "1"))
-                l = strpcpyl(&s, sizeof(names->usb_ports), "c", config, NULL);
+                l = strpcpyl(&s, l, "c", config, NULL);
 
         /* append USB interface number, suppress the interface == 0 */
         if (!streq(interf, "0"))
-                l = strpcpyl(&s, sizeof(names->usb_ports), "i", interf, NULL);
+                l = strpcpyl(&s, l, "i", interf, NULL);
         if (l == 0)
                 return log_device_debug_errno(dev, SYNTHETIC_ERRNO(ENAMETOOLONG),
                                               "Generated USB name would be too long.");
-- 
2.39.1