diff --git a/ChangeLog b/ChangeLog
index 86cd508e3c..dddda15323 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2017-09-25  DJ Delorie  <dj@redhat.com>
+
+	[BZ #22161]
+	* nscd/netgroupcache.c (addinnetgrX): Release read lock after
+	resetting timeout.
+
 2017-09-25  Stefan Liebler  <stli@linux.vnet.ibm.com>
 
 	* sysdeps/ieee754/dbl-64/sincos32.h
diff --git a/nscd/netgroupcache.c b/nscd/netgroupcache.c
index cd0c3ea19b..3ca96f8205 100644
--- a/nscd/netgroupcache.c
+++ b/nscd/netgroupcache.c
@@ -584,6 +584,8 @@ addinnetgrX (struct database_dyn *db, int fd, request_header *req,
       dh->timeout = timeout;
       dh->ttl = dataset->head.ttl;
       ++dh->nreloads;
+      if (cacheable)
+        pthread_rwlock_unlock (&db->lock);
       return timeout;
     }