util: skip incomplete ucred information in getpeersec()

diff --git a/src/shared/util.c b/src/shared/util.c
index 01660526e4556578ee49f49adaa8bba7ec852225..b1ba0ed857b24090b7e57b733f999e68e38c1a53 100644 (file)
--- a/src/shared/util.c
+++ b/src/shared/util.c
@@ -6482,6 +6482,10 @@ int getpeercred(int fd, struct ucred *ucred) {
          * to namespacing issues */
         if (u.pid <= 0)
                 return -ENODATA;
+        if (u.uid == (uid_t) -1)
+                return -ENODATA;
+        if (u.gid == (gid_t) -1)
+                return -ENODATA;
 
         *ucred = u;
         return 0;