diff options
Diffstat (limited to 'net/ipv4/ipmr.c')
| -rw-r--r-- | net/ipv4/ipmr.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c index be1976536..db184cb82 100644 --- a/net/ipv4/ipmr.c +++ b/net/ipv4/ipmr.c @@ -1540,7 +1540,8 @@ out: } /* Getsock opt support for the multicast routing system. */ -int ip_mroute_getsockopt(struct sock *sk, int optname, char __user *optval, int __user *optlen) +int ip_mroute_getsockopt(struct sock *sk, int optname, sockptr_t optval, + sockptr_t optlen) { int olr; int val; @@ -1571,14 +1572,16 @@ int ip_mroute_getsockopt(struct sock *sk, int optname, char __user *optval, int return -ENOPROTOOPT; } - if (get_user(olr, optlen)) + if (copy_from_sockptr(&olr, optlen, sizeof(int))) return -EFAULT; - olr = min_t(unsigned int, olr, sizeof(int)); if (olr < 0) return -EINVAL; - if (put_user(olr, optlen)) + + olr = min_t(unsigned int, olr, sizeof(int)); + + if (copy_to_sockptr(optlen, &olr, sizeof(int))) return -EFAULT; - if (copy_to_user(optval, &val, olr)) + if (copy_to_sockptr(optval, &val, olr)) return -EFAULT; return 0; } |