diff options
Diffstat (limited to 'net/tipc/link.c')
| -rw-r--r-- | net/tipc/link.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/net/tipc/link.c b/net/tipc/link.c index a3616b99529..9d18c9b7638 100644 --- a/net/tipc/link.c +++ b/net/tipc/link.c @@ -1802,6 +1802,15 @@ static int link_recv_buf_validate(struct sk_buff *buf) return pskb_may_pull(buf, hdr_size); } +/** + * tipc_recv_msg - process TIPC messages arriving from off-node + * @head: pointer to message buffer chain + * @tb_ptr: pointer to bearer message arrived on + * + * Invoked with no locks held. Bearer pointer must point to a valid bearer + * structure (i.e. cannot be NULL), but bearer can be inactive. + */ + void tipc_recv_msg(struct sk_buff *head, struct tipc_bearer *tb_ptr) { read_lock_bh(&tipc_net_lock); @@ -1819,6 +1828,11 @@ void tipc_recv_msg(struct sk_buff *head, struct tipc_bearer *tb_ptr) head = head->next; + /* Ensure bearer is still enabled */ + + if (unlikely(!b_ptr->active)) + goto cont; + /* Ensure message is well-formed */ if (unlikely(!link_recv_buf_validate(buf))) |