diff options
Diffstat (limited to 'net/netfilter')
| -rw-r--r-- | net/netfilter/nf_conntrack_extend.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/net/netfilter/nf_conntrack_extend.c b/net/netfilter/nf_conntrack_extend.c index 2bd9963b5b3..bcc19fa4ed1 100644 --- a/net/netfilter/nf_conntrack_extend.c +++ b/net/netfilter/nf_conntrack_extend.c @@ -71,6 +71,9 @@ void *__nf_ct_ext_add(struct nf_conn *ct, enum nf_ct_ext_id id, gfp_t gfp) int i, newlen, newoff; struct nf_ct_ext_type *t; + /* Conntrack must not be confirmed to avoid races on reallocation. */ + NF_CT_ASSERT(!nf_ct_is_confirmed(ct)); + if (!ct->ext) return nf_ct_ext_create(&ct->ext, id, gfp); |