From b4c9708f3bf6c215e4c45c4ff39d07b8fcc80c55 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 ff57ea89c27..2ae64e5192c 100644 --- a/net/ax25/af_ax25.c +++ b/net/ax25/af_ax25.c @@ -1988,7 +1988,7 @@ 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 58d5373c513..a822a2ca52a 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -1463,7 +1463,7 @@ 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 1e8eeb044b0..9465af59955 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -1554,7 +1554,7 @@ 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