From 5e97c9d10934b54dfb93a4d236dd3a9c92840f26 Mon Sep 17 00:00:00 2001
From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Thu, 8 Dec 2022 15:48:25 +0900
Subject: [PATCH] sd-id128: make sd_id128_get_boot() and friend return
 -ENOMEDIUM

(cherry picked from commit 9be90c401e16cf04a9cea0b19fdefa7d0a47f056)

Related: RHEL-27512
---
 src/libsystemd/sd-id128/sd-id128.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/src/libsystemd/sd-id128/sd-id128.c b/src/libsystemd/sd-id128/sd-id128.c
index 5e9ec2b5f6..bff8074f19 100644
--- a/src/libsystemd/sd-id128/sd-id128.c
+++ b/src/libsystemd/sd-id128/sd-id128.c
@@ -149,6 +149,9 @@ _public_ int sd_id128_get_boot(sd_id128_t *ret) {
                 r = id128_read("/proc/sys/kernel/random/boot_id", ID128_FORMAT_UUID, &saved_boot_id);
                 if (r < 0)
                         return r;
+
+                if (sd_id128_is_null(saved_boot_id))
+                        return -ENOMEDIUM;
         }
 
         *ret = saved_boot_id;