Merge tag 'nfsd-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd fixes from Chuck Lever:

 - Fix NFSD bring-up / shutdown

 - Fix a UAF when releasing a stateid

* tag 'nfsd-6.12-1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux:
  nfsd: fix possible badness in FREE_STATEID
  nfsd: nfsd_destroy_serv() must call svc_destroy() even if nfsd_startup_net() failed
  NFSD: Mark filecache "down" if init fails

Author: torvalds

fs/nfsd/filecache.c

@@ -751,7 +751,7 @@ nfsd_file_cache_init(void)
 
 	ret = rhltable_init(&nfsd_file_rhltable, &nfsd_file_rhash_params);
 	if (ret)
-		return ret;
+		goto out;
 
 	ret = -ENOMEM;
 	nfsd_file_slab = KMEM_CACHE(nfsd_file, 0);
@@ -803,6 +803,8 @@ nfsd_file_cache_init(void)
 
 	INIT_DELAYED_WORK(&nfsd_filecache_laundrette, nfsd_file_gc_worker);
 out:
+	if (ret)
+		clear_bit(NFSD_FILE_CACHE_UP, &nfsd_file_flags);
 	return ret;
 out_notifier:
 	lease_unregister_notifier(&nfsd_file_lease_notifier);

fs/nfsd/nfs4state.c

@@ -7154,6 +7154,7 @@ nfsd4_free_stateid(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
 	switch (s->sc_type) {
 	case SC_TYPE_DELEG:
 		if (s->sc_status & SC_STATUS_REVOKED) {
+			s->sc_status |= SC_STATUS_CLOSED;
 			spin_unlock(&s->sc_lock);
 			dp = delegstateid(s);
 			list_del_init(&dp->dl_recall_lru);

fs/nfsd/nfssvc.c

@@ -434,6 +434,9 @@ static void nfsd_shutdown_net(struct net *net)
 {
 	struct nfsd_net *nn = net_generic(net, nfsd_net_id);
 
+	if (!nn->nfsd_net_up)
+		return;
+	nfsd_export_flush(net);
 	nfs4_state_shutdown_net(net);
 	nfsd_reply_cache_shutdown(nn);
 	nfsd_file_cache_shutdown_net(net);
@@ -549,11 +552,8 @@ void nfsd_destroy_serv(struct net *net)
 	 * other initialization has been done except the rpcb information.
 	 */
 	svc_rpcb_cleanup(serv, net);
-	if (!nn->nfsd_net_up)
-		return;
 
 	nfsd_shutdown_net(net);
-	nfsd_export_flush(net);
 	svc_destroy(&serv);
 }