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[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>
This commit is contained in:
Yasuyuki Kozakai 2005-11-14 15:28:45 -08:00 committed by David S. Miller
parent 1ba430bc3e
commit 302fe1758d
1 changed files with 2 additions and 0 deletions
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2
net/ipv6/netfilter/nf_conntrack_reasm.c
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@ -282,6 +282,7 @@ static void nf_ct_frag6_evictor(void)
return; return;
} }
tmp = nf_ct_frag6_lru_list.next; tmp = nf_ct_frag6_lru_list.next;
BUG_ON(tmp == NULL);
fq = list_entry(tmp, struct nf_ct_frag6_queue, lru_list); fq = list_entry(tmp, struct nf_ct_frag6_queue, lru_list);
atomic_inc(&fq->refcnt); atomic_inc(&fq->refcnt);
read_unlock(&nf_ct_frag6_lock); read_unlock(&nf_ct_frag6_lock);
@ -891,5 +892,6 @@ int nf_ct_frag6_init(void)
void nf_ct_frag6_cleanup(void) void nf_ct_frag6_cleanup(void)
{ {
del_timer(&nf_ct_frag6_secret_timer); del_timer(&nf_ct_frag6_secret_timer);
nf_ct_frag6_low_thresh = 0;
nf_ct_frag6_evictor(); nf_ct_frag6_evictor();
} }