From: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Date: Mon, 14 Nov 2005 23:28:45 +0000 (-0800)
Subject: [NETFILTER] fix leak of fragment queue at unloading nf_conntrack_ipv6
X-Git-Tag: v2.6.15-rc2~97
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=302fe1758d85ad9c868e77625f61b7edad106381;p=~emulex%2Finfiniband.git

[NETFILTER] fix leak of fragment queue at unloading nf_conntrack_ipv6

This patch makes nf_conntrack_ipv6 free all IPv6 fragment queues at module
unloading time.  Also introduce a BUG_ON if we ever again have leaks in
the memory accounting.

Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index 1b68d714c0a..c2c52af9e56 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -282,6 +282,7 @@ static void nf_ct_frag6_evictor(void)
 			return;
 		}
 		tmp = nf_ct_frag6_lru_list.next;
+		BUG_ON(tmp == NULL);
 		fq = list_entry(tmp, struct nf_ct_frag6_queue, lru_list);
 		atomic_inc(&fq->refcnt);
 		read_unlock(&nf_ct_frag6_lock);
@@ -891,5 +892,6 @@ int nf_ct_frag6_init(void)
 void nf_ct_frag6_cleanup(void)
 {
 	del_timer(&nf_ct_frag6_secret_timer);
+	nf_ct_frag6_low_thresh = 0;
 	nf_ct_frag6_evictor();
 }