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Diffstat (limited to 'net')
-rw-r--r--net/netfilter/nf_conntrack_extend.c10
1 files changed, 4 insertions, 6 deletions
diff --git a/net/netfilter/nf_conntrack_extend.c b/net/netfilter/nf_conntrack_extend.c
index bcc19fa4ed1..ba1c4915e9e 100644
--- a/net/netfilter/nf_conntrack_extend.c
+++ b/net/netfilter/nf_conntrack_extend.c
@@ -88,13 +88,11 @@ void *__nf_ct_ext_add(struct nf_conn *ct, enum nf_ct_ext_id id, gfp_t gfp)
newlen = newoff + t->len;
rcu_read_unlock();
- if (newlen >= ksize(ct->ext)) {
- new = kmalloc(newlen, gfp);
- if (!new)
- return NULL;
-
- memcpy(new, ct->ext, ct->ext->len);
+ new = krealloc(ct->ext, newlen, gfp);
+ if (!new)
+ return NULL;
+ if (new != ct->ext) {
for (i = 0; i < NF_CT_EXT_NUM; i++) {
if (!nf_ct_ext_exist(ct, i))
continue;