From: Florian Westphal Date: Wed, 4 Jul 2018 18:25:32 +0000 (+0200) Subject: netfilter: x_tables: set module owner for icmp(6) matches X-Git-Tag: v4.14.67~76 X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=365279b70bf3fd458cfe1d44d0f2c220cff5c362;p=users%2Fjedix%2Flinux-maple.git netfilter: x_tables: set module owner for icmp(6) matches [ Upstream commit d376bef9c29b3c65aeee4e785fffcd97ef0a9a81 ] nft_compat relies on xt_request_find_match to increment refcount of the module that provides the match/target. The (builtin) icmp matches did't set the module owner so it was possible to rmmod ip(6)tables while icmp extensions were still in use. Signed-off-by: Florian Westphal Signed-off-by: Pablo Neira Ayuso Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c index 114d4bef1bec..0d1a2cda1bfb 100644 --- a/net/ipv4/netfilter/ip_tables.c +++ b/net/ipv4/netfilter/ip_tables.c @@ -1894,6 +1894,7 @@ static struct xt_match ipt_builtin_mt[] __read_mostly = { .checkentry = icmp_checkentry, .proto = IPPROTO_ICMP, .family = NFPROTO_IPV4, + .me = THIS_MODULE, }, }; diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c index 2e51e0156903..90f5bf2502a7 100644 --- a/net/ipv6/netfilter/ip6_tables.c +++ b/net/ipv6/netfilter/ip6_tables.c @@ -1907,6 +1907,7 @@ static struct xt_match ip6t_builtin_mt[] __read_mostly = { .checkentry = icmp6_checkentry, .proto = IPPROTO_ICMPV6, .family = NFPROTO_IPV6, + .me = THIS_MODULE, }, };