diff options
Diffstat (limited to 'net/sctp')
| -rw-r--r-- | net/sctp/associola.c | 7 | ||||
| -rw-r--r-- | net/sctp/socket.c | 2 |
2 files changed, 6 insertions, 3 deletions
diff --git a/net/sctp/associola.c b/net/sctp/associola.c index 201c888604e4..b99f163e33ac 100644 --- a/net/sctp/associola.c +++ b/net/sctp/associola.c @@ -1651,8 +1651,11 @@ int sctp_assoc_set_id(struct sctp_association *asoc, gfp_t gfp) if (preload) idr_preload(gfp); spin_lock_bh(&sctp_assocs_id_lock); - /* 0 is not a valid assoc_id, must be >= 1 */ - ret = idr_alloc_cyclic(&sctp_assocs_id, asoc, 1, 0, GFP_NOWAIT); + /* 0, 1, 2 are used as SCTP_FUTURE_ASSOC, SCTP_CURRENT_ASSOC and + * SCTP_ALL_ASSOC, so an available id must be > SCTP_ALL_ASSOC. + */ + ret = idr_alloc_cyclic(&sctp_assocs_id, asoc, SCTP_ALL_ASSOC + 1, 0, + GFP_NOWAIT); spin_unlock_bh(&sctp_assocs_id_lock); if (preload) idr_preload_end(); diff --git a/net/sctp/socket.c b/net/sctp/socket.c index f93c3cf9e567..a52d132470ea 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -248,7 +248,7 @@ struct sctp_association *sctp_id2assoc(struct sock *sk, sctp_assoc_t id) } /* Otherwise this is a UDP-style socket. */ - if (!id || (id == (sctp_assoc_t)-1)) + if (id <= SCTP_ALL_ASSOC) return NULL; spin_lock_bh(&sctp_assocs_id_lock); |