netfilter: layer7 fix wrong fuzzy match change

patch has applied one hunk to a wrong place.
This result in double free and crash the kernel.

Signed-off-by: Arne Fitzenreiter <arne_f@ipfire.org>

diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 1357a2729a4ba699522ab499ef0e7fdc3925974f..7cf2b36ca40c0db40a761e6ea5a903290468f42c 100644 (file)
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -601,6 +601,13 @@ void nf_ct_destroy(struct nf_conntrack *nfct)
         */
        nf_ct_remove_expectations(ct);
 
+#if defined(CONFIG_NETFILTER_XT_MATCH_LAYER7) || defined(CONFIG_NETFILTER_XT_MATCH_LAYER7_MODULE)
+       if(ct->layer7.app_proto)
+               kfree(ct->layer7.app_proto);
+       if(ct->layer7.app_data)
+               kfree(ct->layer7.app_data);
+#endif
+
        if (ct->master)
                nf_ct_put(ct->master);