[BZ #23005]
	* resolv/res_send.c (__res_context_send): Return ENOMEM if
	allocation of private copy of nsaddr_list fails.

Index: glibc-2.27/resolv/res_send.c
===================================================================
--- glibc-2.27.orig/resolv/res_send.c
+++ glibc-2.27/resolv/res_send.c
@@ -471,6 +471,11 @@ __res_context_send (struct resolv_contex
 					'\0',
 					sizeof (struct sockaddr_in6)
 					- sizeof (struct sockaddr_in));
+			else
+			  {
+			    __set_errno (ENOMEM);
+			    return -1;
+			  }
 		}
 		EXT(statp).nscount = statp->nscount;
 	}