From e3e57edf4aac05d041ca55ff2f008c6109ef88d5 Mon Sep 17 00:00:00 2001
From: Cy Schubert <cy@FreeBSD.org>
Date: Wed, 14 Dec 2022 13:41:10 -0800
Subject: [PATCH] network.subr: Fix infinite loop

When setting up carp tunnel, using a password consisting of only the
characters used as hexadecimal characters, i.e. abc-def, there will be
an infinite loop in the shell function ifalias_af_common_handler().
To circumvent this we test for " pass ".

PR:		268378
Reported by:	jyoung15@gmail.com
MFC after:	1 week
Differential Revision:	https://reviews.freebsd.org/D37748
---
 libexec/rc/network.subr | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libexec/rc/network.subr b/libexec/rc/network.subr
index 76a5b94bc40..29ac06daefb 100644
--- a/libexec/rc/network.subr
+++ b/libexec/rc/network.subr
@@ -1049,6 +1049,9 @@ ifalias_af_common_handler()
 	# Process the last component if any.
 	if [ -n "${_tmpargs}" ]; then
 		case $_tmpargs in
+		${_af}[[:space:]]pass[[:space:]]*)
+			${IFCONFIG_CMD} $_if $_tmpargs $_action && _ret=0
+		;;
 		${_af}[[:space:]]*[0-9a-fA-F]-*)
 			ifalias_af_common_handler $_if $_af $_action \
 			`ifalias_expand_addr $_af $_action ${_tmpargs#${_af}[[:space:]]}`