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authorFlorian Westphal <fw@strlen.de>2018-07-04 20:25:32 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-08-28 07:21:36 +0200
commit2e792ad70b398404cba6385c50d8452a37126008 (patch)
treeed0771ee83da421111fee58ad898a068f16b131e /net/ipv4
parent46ed892ba240b6ee058b72b90bab9d8bc689d889 (diff)
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>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/netfilter/ip_tables.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index 60ba5b0f6474..8d633b6993bb 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/net/ipv4/netfilter/ip_tables.c
@@ -2069,6 +2069,7 @@ static struct xt_match ipt_builtin_mt[] __read_mostly = {
.checkentry = icmp_checkentry,
.proto = IPPROTO_ICMP,
.family = NFPROTO_IPV4,
+ .me = THIS_MODULE,
},
};