From b6cd0e8e8599adac29faa5a93f04fa442584bf30 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 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 b685bc82f8d..94b3ba73429 100644 --- a/net/dccp/ipv4.c +++ b/net/dccp/ipv4.c @@ -1079,8 +1079,8 @@ 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 1b7381ff787..8d574c39846 100644 --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -1162,8 +1162,8 @@ 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