diff options
| author | Christoph Hellwig <hch@lst.de> | 2020-07-19 10:22:14 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-07-20 04:26:43 +0300 |
| commit | 3f49f72035d5625c06a23d72c22feee7f0d2b068 (patch) | |
| tree | a72a7cbe066eb3e8e1a0c2d726b4ad9026330802 | |
| parent | ac37435bfe9e09fc107daf6eddb57831b5961708 (diff) | |
| download | linux-3f49f72035d5625c06a23d72c22feee7f0d2b068.tar.xz | |
sctp: pass a kernel pointer to sctp_setsockopt_reconfig_supported
Use the kernel pointer that sctp_setsockopt has available instead of
directly handling the user pointer.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/sctp/socket.c | 18 |
1 files changed, 6 insertions, 12 deletions
diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 0eeb6e6162ad..270c5d53fbf7 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -3996,27 +3996,21 @@ out: } static int sctp_setsockopt_reconfig_supported(struct sock *sk, - char __user *optval, + struct sctp_assoc_value *params, unsigned int optlen) { - struct sctp_assoc_value params; struct sctp_association *asoc; int retval = -EINVAL; - if (optlen != sizeof(params)) - goto out; - - if (copy_from_user(¶ms, optval, optlen)) { - retval = -EFAULT; + if (optlen != sizeof(*params)) goto out; - } - asoc = sctp_id2assoc(sk, params.assoc_id); - if (!asoc && params.assoc_id != SCTP_FUTURE_ASSOC && + asoc = sctp_id2assoc(sk, params->assoc_id); + if (!asoc && params->assoc_id != SCTP_FUTURE_ASSOC && sctp_style(sk, UDP)) goto out; - sctp_sk(sk)->ep->reconf_enable = !!params.assoc_value; + sctp_sk(sk)->ep->reconf_enable = !!params->assoc_value; retval = 0; @@ -4688,7 +4682,7 @@ static int sctp_setsockopt(struct sock *sk, int level, int optname, retval = sctp_setsockopt_default_prinfo(sk, kopt, optlen); break; case SCTP_RECONFIG_SUPPORTED: - retval = sctp_setsockopt_reconfig_supported(sk, optval, optlen); + retval = sctp_setsockopt_reconfig_supported(sk, kopt, optlen); break; case SCTP_ENABLE_STREAM_RESET: retval = sctp_setsockopt_enable_strreset(sk, optval, optlen); |