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Date:   Wed, 13 Jun 2018 12:56:59 +0200
From:   Pablo Neira Ayuso <>
Subject: [PATCH 8/9] netfilter: xt_connmark: fix list corruption on rmmod

From: Florian Westphal <>

This needs to use xt_unregister_targets, else new revision is left
on the list which then causes list to point to a target struct that has been free'd.

Fixes: 472a73e00757 ("netfilter: xt_conntrack: Support bit-shifting for CONNMARK & MARK targets.")
Signed-off-by: Florian Westphal <>
Signed-off-by: Pablo Neira Ayuso <>
 net/netfilter/xt_connmark.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/netfilter/xt_connmark.c b/net/netfilter/xt_connmark.c
index 94df000abb92..29c38aa7f726 100644
--- a/net/netfilter/xt_connmark.c
+++ b/net/netfilter/xt_connmark.c
@@ -211,7 +211,7 @@ static int __init connmark_mt_init(void)
 static void __exit connmark_mt_exit(void)
-	xt_unregister_target(connmark_tg_reg);
+	xt_unregister_targets(connmark_tg_reg, ARRAY_SIZE(connmark_tg_reg));

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