Xin Xiong <xiongx18@xxxxxxxxxxxx> wrote: > The issue takes place in one error path of clusterip_tg_check(). When > memcmp() returns nonzero, the function simply returns the error code, > forgetting to decrease the reference count of a clusterip_config > object, which is bumped earlier by clusterip_config_find_get(). This > may incur reference count leak. > > Fix this issue by decrementing the refcount of the object in specific > error path. Fixes: 06aa151ad1fc74 ("netfilter: ipt_CLUSTERIP: check MAC address when duplicate config is set")