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/6.17.13-1+rpi1~2^2~41 X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=38a6716fa93d5e4cf5d11775583b23acc57877f4;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 6ef8b2a57a9..dd5f031db39 100644 --- a/net/ax25/af_ax25.c +++ b/net/ax25/af_ax25.c @@ -2067,7 +2067,7 @@ 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 3331669d8e3..ad363f80e08 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 543f9e8ebb6..ffb2ac4914d 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -1639,7 +1639,7 @@ 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) {