diff mbox series

[8/9] netfilter: xt_connmark: fix list corruption on rmmod

Message ID 20180613105700.12894-9-pablo@netfilter.org
State Accepted
Delegated to: Pablo Neira
Headers show
Series [1/9] netfilter: fix null-ptr-deref in nf_nat_decode_session | expand

Commit Message

Pablo Neira Ayuso June 13, 2018, 10:56 a.m. UTC 
From: Florian Westphal <fw@strlen.de>

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 <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
---
 net/netfilter/xt_connmark.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

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_match(&connmark_mt_reg);
-	xt_unregister_target(connmark_tg_reg);
+	xt_unregister_targets(connmark_tg_reg, ARRAY_SIZE(connmark_tg_reg));
 }
 
 module_init(connmark_mt_init);