From: Lennart Poettering <lennart@poettering.net>
Date: Thu, 5 Oct 2023 08:39:06 +0000 (+0200)
Subject: cgroup-util: make sure cg_get_owner() only works for cgroups, not cgroup attribute... 
X-Git-Tag: v255-rc1~328^2
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F29453%2Fhead;p=thirdparty%2Fsystemd.git

cgroup-util: make sure cg_get_owner() only works for cgroups, not cgroup attribute files
---

diff --git a/src/basic/cgroup-util.c b/src/basic/cgroup-util.c
index 64c9b776ba3..fdbb749b4ee 100644
--- a/src/basic/cgroup-util.c
+++ b/src/basic/cgroup-util.c
@@ -1852,10 +1852,13 @@ int cg_get_owner(const char *path, uid_t *ret_uid) {
         if (r < 0)
                 return r;
 
-        r = stat(f, &stats);
-        if (r < 0)
+        if (stat(f, &stats) < 0)
                 return -errno;
 
+        r = stat_verify_directory(&stats);
+        if (r < 0)
+                return r;
+
         *ret_uid = stats.st_uid;
         return 0;
 }