From: Lennart Poettering <lennart@poettering.net>
Date: Thu, 19 Dec 2024 13:27:03 +0000 (+0100)
Subject: mount-util: add debug message to make_userns() failure
X-Git-Tag: v258-rc1~1808^2~2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b1b128d0e298942deb4a2f6a298f476b9e285a0f;p=thirdparty%2Fsystemd.git

mount-util: add debug message to make_userns() failure
---

diff --git a/src/shared/mount-util.c b/src/shared/mount-util.c
index c8486b1b4a8..756fb74c354 100644
--- a/src/shared/mount-util.c
+++ b/src/shared/mount-util.c
@@ -1321,7 +1321,7 @@ int make_userns(uid_t uid_shift, uid_t uid_range, uid_t source_owner, uid_t dest
          * process whose only purpose is to give us a new user namespace. It's killed when we got it. */
 
         if (!userns_shift_range_valid(uid_shift, uid_range))
-                return -EINVAL;
+                return log_debug_errno(SYNTHETIC_ERRNO(EINVAL), "Invalid UID range for user namespace.");
 
         if (IN_SET(idmapping, REMOUNT_IDMAPPING_NONE, REMOUNT_IDMAPPING_HOST_ROOT)) {
                 if (asprintf(&line, UID_FMT " " UID_FMT " " UID_FMT "\n", 0u, uid_shift, uid_range) < 0)