From 0300306d44ece04db3bfc6609e99249bc4870169 Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Mon, 5 Aug 2019 00:29:11 +0100 Subject: [PATCH] hamradio: Disable auto-loading as mitigation against local exploits Forwarded: not-needed We can mitigate the effect of vulnerabilities in obscure protocols by preventing unprivileged users from loading the modules, so that they are only exploitable on systems where the administrator has chosen to load the protocol. The 'ham' radio protocols (ax25, netrom, rose) are not actively maintained or widely used. Therefore disable auto-loading. Signed-off-by: Ben Hutchings Gbp-Pq: Topic debian Gbp-Pq: Name hamradio-disable-auto-loading-as-mitigation-against-local-exploits.patch --- net/ax25/af_ax25.c | 2 +- net/netrom/af_netrom.c | 2 +- net/rose/af_rose.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c index 5fff5930e4d..4957458ca1a 100644 --- a/net/ax25/af_ax25.c +++ b/net/ax25/af_ax25.c @@ -2066,7 +2066,7 @@ module_init(ax25_init); MODULE_AUTHOR("Jonathan Naylor G4KLX "); MODULE_DESCRIPTION("The amateur radio AX.25 link layer protocol"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_NETPROTO(PF_AX25); +/* MODULE_ALIAS_NETPROTO(PF_AX25); */ static void __exit ax25_exit(void) { diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c index 104a80b7547..3cad196587f 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -1498,7 +1498,7 @@ MODULE_PARM_DESC(nr_ndevs, "number of NET/ROM devices"); MODULE_AUTHOR("Jonathan Naylor G4KLX "); MODULE_DESCRIPTION("The amateur radio NET/ROM network and transport layer protocol"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_NETPROTO(PF_NETROM); +/* MODULE_ALIAS_NETPROTO(PF_NETROM); */ static void __exit nr_exit(void) { diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c index ef81d019b20..7c79c33eebd 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -1630,7 +1630,7 @@ MODULE_PARM_DESC(rose_ndevs, "number of ROSE devices"); MODULE_AUTHOR("Jonathan Naylor G4KLX "); MODULE_DESCRIPTION("The amateur radio ROSE network layer protocol"); MODULE_LICENSE("GPL"); -MODULE_ALIAS_NETPROTO(PF_ROSE); +/* MODULE_ALIAS_NETPROTO(PF_ROSE); */ static void __exit rose_exit(void) { -- 2.30.2