From e50d553a16fa205f8e3a5498ae5fa73837606bec 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 bfececa9e24..bcf65acfaa0 100644 --- a/net/dccp/ipv4.c +++ b/net/dccp/ipv4.c @@ -1093,8 +1093,8 @@ 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 b51ce6f8ceb..0d315fe3023 100644 --- a/net/dccp/ipv6.c +++ b/net/dccp/ipv6.c @@ -1174,8 +1174,8 @@ 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