diff -Naur ppp-2.4.2-orig/pppd/tty.c ppp-2.4.2/pppd/tty.c
--- ppp-2.4.2-orig/pppd/tty.c	2004-01-13 06:17:59 +0200
+++ ppp-2.4.2/pppd/tty.c	2006-11-13 15:10:08 +0200
@@ -589,7 +589,7 @@
 		 * Do the equivalent of `mesg n' to stop broadcast messages.
 		 */
 		if (fstat(ttyfd, &statbuf) < 0
-		    || fchmod(ttyfd, statbuf.st_mode & ~(S_IWGRP | S_IWOTH)) < 0) {
+		    || fchmod(ttyfd, statbuf.st_mode & ~S_IWOTH) < 0) {
 			warn("Couldn't restrict write permissions to %s: %m", devnam);
 		} else
 			tty_mode = statbuf.st_mode;