From: Ben Hutchings Date: Sun, 4 Aug 2019 23:29:11 +0000 (+0100) Subject: hamradio: Disable auto-loading as mitigation against local exploits X-Git-Tag: archive/raspbian/5.9.6-1+rpi1^2^2^2~62 X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=10b8130b9325d816c54df7ea03fe9c17923c20d6;p=linux.git 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 --- diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c index dec3f35467c..1d02e8352fb 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 f90ef6934b8..d17ce8db420 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 ce85656ac9c..ea21381a314 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) {