Index: main/manager.c
===================================================================
--- main/manager.c	(revision 71577)
+++ main/manager.c	(working copy)
@@ -1638,6 +1638,13 @@
 	l = lseek(fd, 0, SEEK_END);	/* how many chars available */
 	buf = alloca(l + 1);
 	final_buf = alloca(l + 1);
+	if (!buf || !final_buf) {
+		ast_log( LOG_DEBUG, "action_command: unable to allocate buffers(%ld)\n", (long) l );
+		astman_append(s, "--END COMMAND--\r\n\r\n");
+		close(fd);
+		unlink(template);
+		return -1;
+	}
 	lseek(fd, 0, SEEK_SET);
 	read(fd, buf, l);
 	buf[l] = '\0';