diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 872aebac9f68..bda1ffe6e41f 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -4929,9 +4929,13 @@ oplock_break_ack:
 	 * disconnected since oplock already released by the server
 	 */
 	if (!oplock_break_cancelled) {
-		rc = tcon->ses->server->ops->oplock_response(tcon, persistent_fid,
+		/* check for server null since can race with kill_sb calling tree disconnect */
+		if (tcon->ses && tcon->ses->server) {
+			rc = tcon->ses->server->ops->oplock_response(tcon, persistent_fid,
 				volatile_fid, net_fid, cinode);
-		cifs_dbg(FYI, "Oplock release rc = %d\n", rc);
+			cifs_dbg(FYI, "Oplock release rc = %d\n", rc);
+		} else
+			pr_warn_once("lease break not sent for unmounted share\n");
 	}
 
 	cifs_done_oplock_break(cinode);