When the conntrack module is removed, we call nf_ct_iterate_destroy via
nf_ct_l4proto_unregister().
Problem is that nf_conntrack_proto_fini() gets called after the
conntrack hash table has already been freed.
Just remove the l4proto unregister call, its unecessary as the
nf_ct_protos[] array gets free'd right after anyway.
v2: add comment wrt. missing unreg call.
Fixes: a0ae2562c6c4b2 ("netfilter: conntrack: remove l3proto abstraction")
Signed-off-by: Florian Westphal <[email protected]>
---
net/netfilter/nf_conntrack_proto.c | 7 +++----
1 file changed, 3 insertions(+), 4 deletions(-)
diff --git a/net/netfilter/nf_conntrack_proto.c
b/net/netfilter/nf_conntrack_proto.c
index 803607a90102..30070732ee50 100644
--- a/net/netfilter/nf_conntrack_proto.c
+++ b/net/netfilter/nf_conntrack_proto.c
@@ -940,14 +940,13 @@ void nf_conntrack_proto_fini(void)
{
unsigned int i;
- nf_ct_l4proto_unregister(builtin_l4proto,
- ARRAY_SIZE(builtin_l4proto));
nf_unregister_sockopt(&so_getorigdst);
#if IS_ENABLED(CONFIG_IPV6)
nf_unregister_sockopt(&so_getorigdst6);
#endif
-
- /* free l3proto protocol tables */
+ /* No need to call nf_ct_l4proto_unregister(), the register
+ * tables are free'd here anyway.
+ */
for (i = 0; i < ARRAY_SIZE(nf_ct_protos); i++)
kfree(nf_ct_protos[i]);
}
--
2.16.4
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