diff options
| -rw-r--r-- | include/net/sock.h | 3 | ||||
| -rw-r--r-- | net/core/sock.c | 26 | ||||
| -rw-r--r-- | net/mptcp/protocol.c | 6 | ||||
| -rw-r--r-- | net/socket.c | 3 |
4 files changed, 20 insertions, 18 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index 62e18fc8ac9f..bfb2fe2fc368 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -59,6 +59,7 @@ #include <linux/filter.h> #include <linux/rculist_nulls.h> #include <linux/poll.h> +#include <linux/sockptr.h> #include <linux/atomic.h> #include <linux/refcount.h> @@ -1669,7 +1670,7 @@ void sock_pfree(struct sk_buff *skb); #endif int sock_setsockopt(struct socket *sock, int level, int op, - char __user *optval, unsigned int optlen); + sockptr_t optval, unsigned int optlen); int sock_getsockopt(struct socket *sock, int level, int op, char __user *optval, int __user *optlen); diff --git a/net/core/sock.c b/net/core/sock.c index 8b9eddaff868..1444d7d53ba2 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -826,7 +826,7 @@ EXPORT_SYMBOL(sock_set_rcvbuf); */ int sock_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock_txtime sk_txtime; struct sock *sk = sock->sk; @@ -840,12 +840,12 @@ int sock_setsockopt(struct socket *sock, int level, int optname, */ if (optname == SO_BINDTODEVICE) - return sock_setbindtodevice(sk, USER_SOCKPTR(optval), optlen); + return sock_setbindtodevice(sk, optval, optlen); if (optlen < sizeof(int)) return -EINVAL; - if (get_user(val, (int __user *)optval)) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; valbool = val ? 1 : 0; @@ -958,7 +958,7 @@ set_sndbuf: ret = -EINVAL; /* 1003.1g */ break; } - if (copy_from_user(&ling, optval, sizeof(ling))) { + if (copy_from_sockptr(&ling, optval, sizeof(ling))) { ret = -EFAULT; break; } @@ -1052,21 +1052,20 @@ set_sndbuf: case SO_RCVTIMEO_OLD: case SO_RCVTIMEO_NEW: - ret = sock_set_timeout(&sk->sk_rcvtimeo, USER_SOCKPTR(optval), + ret = sock_set_timeout(&sk->sk_rcvtimeo, optval, optlen, optname == SO_RCVTIMEO_OLD); break; case SO_SNDTIMEO_OLD: case SO_SNDTIMEO_NEW: - ret = sock_set_timeout(&sk->sk_sndtimeo, USER_SOCKPTR(optval), + ret = sock_set_timeout(&sk->sk_sndtimeo, optval, optlen, optname == SO_SNDTIMEO_OLD); break; case SO_ATTACH_FILTER: { struct sock_fprog fprog; - ret = copy_bpf_fprog_from_user(&fprog, USER_SOCKPTR(optval), - optlen); + ret = copy_bpf_fprog_from_user(&fprog, optval, optlen); if (!ret) ret = sk_attach_filter(&fprog, sk); break; @@ -1077,7 +1076,7 @@ set_sndbuf: u32 ufd; ret = -EFAULT; - if (copy_from_user(&ufd, optval, sizeof(ufd))) + if (copy_from_sockptr(&ufd, optval, sizeof(ufd))) break; ret = sk_attach_bpf(ufd, sk); @@ -1087,8 +1086,7 @@ set_sndbuf: case SO_ATTACH_REUSEPORT_CBPF: { struct sock_fprog fprog; - ret = copy_bpf_fprog_from_user(&fprog, USER_SOCKPTR(optval), - optlen); + ret = copy_bpf_fprog_from_user(&fprog, optval, optlen); if (!ret) ret = sk_reuseport_attach_filter(&fprog, sk); break; @@ -1099,7 +1097,7 @@ set_sndbuf: u32 ufd; ret = -EFAULT; - if (copy_from_user(&ufd, optval, sizeof(ufd))) + if (copy_from_sockptr(&ufd, optval, sizeof(ufd))) break; ret = sk_reuseport_attach_bpf(ufd, sk); @@ -1179,7 +1177,7 @@ set_sndbuf: if (sizeof(ulval) != sizeof(val) && optlen >= sizeof(ulval) && - get_user(ulval, (unsigned long __user *)optval)) { + copy_from_sockptr(&ulval, optval, sizeof(ulval))) { ret = -EFAULT; break; } @@ -1222,7 +1220,7 @@ set_sndbuf: if (optlen != sizeof(struct sock_txtime)) { ret = -EINVAL; break; - } else if (copy_from_user(&sk_txtime, optval, + } else if (copy_from_sockptr(&sk_txtime, optval, sizeof(struct sock_txtime))) { ret = -EFAULT; break; diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 979dfcd2aa14..7246847efa90 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -1648,7 +1648,8 @@ static int mptcp_setsockopt_sol_socket(struct mptcp_sock *msk, int optname, return -EINVAL; } - ret = sock_setsockopt(ssock, SOL_SOCKET, optname, optval, optlen); + ret = sock_setsockopt(ssock, SOL_SOCKET, optname, + USER_SOCKPTR(optval), optlen); if (ret == 0) { if (optname == SO_REUSEPORT) sk->sk_reuseport = ssock->sk->sk_reuseport; @@ -1659,7 +1660,8 @@ static int mptcp_setsockopt_sol_socket(struct mptcp_sock *msk, int optname, return ret; } - return sock_setsockopt(sk->sk_socket, SOL_SOCKET, optname, optval, optlen); + return sock_setsockopt(sk->sk_socket, SOL_SOCKET, optname, + USER_SOCKPTR(optval), optlen); } static int mptcp_setsockopt_v6(struct mptcp_sock *msk, int optname, diff --git a/net/socket.c b/net/socket.c index 93846568c2fb..c97f83d879ae 100644 --- a/net/socket.c +++ b/net/socket.c @@ -2130,7 +2130,8 @@ int __sys_setsockopt(int fd, int level, int optname, char __user *optval, } if (level == SOL_SOCKET && !sock_use_custom_sol_socket(sock)) - err = sock_setsockopt(sock, level, optname, optval, optlen); + err = sock_setsockopt(sock, level, optname, + USER_SOCKPTR(optval), optlen); else if (unlikely(!sock->ops->setsockopt)) err = -EOPNOTSUPP; else |