diff options
| author |   Christoph Hellwig <hch@lst.de> | 2020-07-19 09:22:11 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-07-19 18:26:43 -0700 |
| commit | cfa6fde26642553fcb0cdbfefe80f075eb6173f2 (patch) | |
| tree | 3b49d828a453fab1a08a9644014be7d6810b4a3a /net/sctp/socket.c | |
| parent | sctp: pass a kernel pointer to sctp_setsockopt_recvrcvinfo (diff) | |
| download | linux-dev-cfa6fde26642553fcb0cdbfefe80f075eb6173f2.tar.xz linux-dev-cfa6fde26642553fcb0cdbfefe80f075eb6173f2.zip | |
sctp: pass a kernel pointer to sctp_setsockopt_recvnxtinfo
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>
Diffstat (limited to 'net/sctp/socket.c')
| -rw-r--r-- | net/sctp/socket.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/net/sctp/socket.c b/net/sctp/socket.c index ac56fb7eb394..7beb26e5749d 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -3913,18 +3913,13 @@ static int sctp_setsockopt_recvrcvinfo(struct sock *sk, int *val, return 0; } -static int sctp_setsockopt_recvnxtinfo(struct sock *sk, - char __user *optval, +static int sctp_setsockopt_recvnxtinfo(struct sock *sk, int *val, unsigned int optlen) { - int val; - if (optlen < sizeof(int)) return -EINVAL; - if (get_user(val, (int __user *) optval)) - return -EFAULT; - sctp_sk(sk)->recvnxtinfo = (val == 0) ? 0 : 1; + sctp_sk(sk)->recvnxtinfo = (*val == 0) ? 0 : 1; return 0; } @@ -4693,7 +4688,7 @@ static int sctp_setsockopt(struct sock *sk, int level, int optname, retval = sctp_setsockopt_recvrcvinfo(sk, kopt, optlen); break; case SCTP_RECVNXTINFO: - retval = sctp_setsockopt_recvnxtinfo(sk, optval, optlen); + retval = sctp_setsockopt_recvnxtinfo(sk, kopt, optlen); break; case SCTP_PR_SUPPORTED: retval = sctp_setsockopt_pr_supported(sk, optval, optlen); |