From 9d41c62f6eeb50334e155e1f788e132d55d0c8c1 Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Tue, 5 Apr 2022 10:19:20 +0200
Subject: [PATCH] sd-device: validate devnum parameters in device_set_devnum()

---
 src/libsystemd/sd-device/sd-device.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/libsystemd/sd-device/sd-device.c b/src/libsystemd/sd-device/sd-device.c
index f9c491c242..d31526fc22 100644
--- a/src/libsystemd/sd-device/sd-device.c
+++ b/src/libsystemd/sd-device/sd-device.c
@@ -585,11 +585,15 @@ int device_set_devnum(sd_device *device, const char *major, const char *minor) {
                 return r;
         if (maj == 0)
                 return 0;
+        if (!DEVICE_MAJOR_VALID(maj))
+                return -EINVAL;
 
         if (minor) {
                 r = safe_atou(minor, &min);
                 if (r < 0)
                         return r;
+                if (!DEVICE_MINOR_VALID(min))
+                        return -EINVAL;
         }
 
         r = device_add_property_internal(device, "MAJOR", major);