From 4336ae8375a4fc318a353fdc2c717cc00033f5ae Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Thu, 16 Feb 2017 19:09:17 +0000 Subject: [PATCH] dccp: 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 'dccp' protocol is not actively maintained or widely used. Therefore disable auto-loading. Signed-off-by: Ben Hutchings Gbp-Pq: Topic debian Gbp-Pq: Name dccp-disable-auto-loading-as-mitigation-against-local-exploits.patch --- net/dccp/ipv4.c | 4 ++-- net/dccp/ipv6.c | 4 ++-- 2 files changed, 4 insertions(+), 4 deletions(-) diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c index fa14eef8f06..e0bdfb1d18b 100644 --- a/net/dccp/ipv4.c +++ b/net/dccp/ipv4.c @@ -1094,8 +1094,8 @@ module_exit(dccp_v4_exit); * values directly, Also cover the case where the protocol is not specified, * i.e. net-pf-PF_INET-proto-0-type-SOCK_DCCP */ -MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_INET, 33, 6); -MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_INET, 0, 6); +/* MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_INET, 33, 6); */ +/* MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_INET, 0, 6); */ MODULE_LICENSE("GPL"); MODULE_AUTHOR("Arnaldo Carvalho de Melo "); MODULE_DESCRIPTION("DCCP - Datagram Congestion Controlled Protocol"); diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c index c693a570682..0d6316bb58d 100644 --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -1175,8 +1175,8 @@ module_exit(dccp_v6_exit); * values directly, Also cover the case where the protocol is not specified, * i.e. net-pf-PF_INET6-proto-0-type-SOCK_DCCP */ -MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_INET6, 33, 6); -MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_INET6, 0, 6); +/* MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_INET6, 33, 6); */ +/* MODULE_ALIAS_NET_PF_PROTO_TYPE(PF_INET6, 0, 6); */ MODULE_LICENSE("GPL"); MODULE_AUTHOR("Arnaldo Carvalho de Melo "); MODULE_DESCRIPTION("DCCPv6 - Datagram Congestion Controlled Protocol"); -- 2.30.2