diff options
Diffstat (limited to 'net/sctp')
| -rw-r--r-- | net/sctp/socket.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/net/sctp/socket.c b/net/sctp/socket.c index e505e189bcef..f38c9127e858 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -3322,7 +3322,7 @@ static int sctp_setsockopt_maxseg(struct sock *sk, char __user *optval, unsigned current->comm, task_pid_nr(current)); if (copy_from_user(&val, optval, optlen)) return -EFAULT; - params.assoc_id = 0; + params.assoc_id = SCTP_FUTURE_ASSOC; } else if (optlen == sizeof(struct sctp_assoc_value)) { if (copy_from_user(¶ms, optval, optlen)) return -EFAULT; @@ -3332,6 +3332,9 @@ static int sctp_setsockopt_maxseg(struct sock *sk, char __user *optval, unsigned } asoc = sctp_id2assoc(sk, params.assoc_id); + if (!asoc && params.assoc_id != SCTP_FUTURE_ASSOC && + sctp_style(sk, UDP)) + return -EINVAL; if (val) { int min_len, max_len; @@ -3349,8 +3352,6 @@ static int sctp_setsockopt_maxseg(struct sock *sk, char __user *optval, unsigned asoc->user_frag = val; sctp_assoc_update_frag_point(asoc); } else { - if (params.assoc_id && sctp_style(sk, UDP)) - return -EINVAL; sp->user_frag = val; } @@ -6503,7 +6504,7 @@ static int sctp_getsockopt_maxseg(struct sock *sk, int len, "Use of int in maxseg socket option.\n" "Use struct sctp_assoc_value instead\n", current->comm, task_pid_nr(current)); - params.assoc_id = 0; + params.assoc_id = SCTP_FUTURE_ASSOC; } else if (len >= sizeof(struct sctp_assoc_value)) { len = sizeof(struct sctp_assoc_value); if (copy_from_user(¶ms, optval, len)) @@ -6512,7 +6513,8 @@ static int sctp_getsockopt_maxseg(struct sock *sk, int len, return -EINVAL; asoc = sctp_id2assoc(sk, params.assoc_id); - if (!asoc && params.assoc_id && sctp_style(sk, UDP)) + if (!asoc && params.assoc_id != SCTP_FUTURE_ASSOC && + sctp_style(sk, UDP)) return -EINVAL; if (asoc) |