Commit 38fb0afc authored by Patrick McHardy's avatar Patrick McHardy
Browse files

netfilter: nf_conntrack: fix crash when unloading helpers

Commit ea781f19

 (netfilter: nf_conntrack: use SLAB_DESTROY_BY_RCU and)
get rid of call_rcu() was missing one conversion to the hlist_nulls
functions, causing a crash when unloading conntrack helper modules.
Reported-and-tested-by: default avatarMariusz Kozlowski <>
Signed-off-by: default avatarPatrick McHardy <>
parent b6f0a365
......@@ -176,7 +176,7 @@ static void __nf_conntrack_helper_unregister(struct nf_conntrack_helper *me,
/* Get rid of expecteds, set helpers to NULL. */
hlist_for_each_entry(h, nn, &net->ct.unconfirmed, hnnode)
hlist_nulls_for_each_entry(h, nn, &net->ct.unconfirmed, hnnode)
unhelp(h, me);
for (i = 0; i < nf_conntrack_htable_size; i++) {
hlist_nulls_for_each_entry(h, nn, &net->ct.hash[i], hnnode)
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