netfilter: x_tables: set module owner for icmp(6) matches
authorFlorian Westphal <fw@strlen.de>
Wed, 4 Jul 2018 18:25:32 +0000 (20:25 +0200)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 24 Aug 2018 11:09:13 +0000 (13:09 +0200)
commit365279b70bf3fd458cfe1d44d0f2c220cff5c362
tree5a0a6e27f42e56bec38de362f2add8eec376e331
parent2d0da218864349100c33ed71336a7211e37d64a8
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 <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
net/ipv4/netfilter/ip_tables.c
net/ipv6/netfilter/ip6_tables.c