From bf6e54cf34516c874f2d884f129e6e28fca02337 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 269ee89d2c2..b23b9f3f6d0 100644 --- a/net/ax25/af_ax25.c +++ b/net/ax25/af_ax25.c @@ -1996,7 +1996,7 @@ 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 6d16e1ab1a8..189d8c77b07 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -1488,7 +1488,7 @@ 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 cf7d974e0f6..35b37052252 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -1577,7 +1577,7 @@ 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