[24/24] net: pass a sockptr_t into ->setsockopt

Message ID	20200720124737.118617-25-hch@lst.de (mailing list archive)
State	New, archived
Headers	show Return-Path: <SRS0=mCsq=A7=vger.kernel.org=linux-bluetooth-owner@kernel.org> From: Christoph Hellwig <hch@lst.de> To: "David S. Miller" <davem@davemloft.net>, Jakub Kicinski <kuba@kernel.org>, Alexei Starovoitov <ast@kernel.org>, Daniel Borkmann <daniel@iogearbox.net>, Alexey Kuznetsov <kuznet@ms2.inr.ac.ru>, Hideaki YOSHIFUJI <yoshfuji@linux-ipv6.org>, Eric Dumazet <edumazet@google.com> Cc: linux-crypto@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, bpf@vger.kernel.org, netfilter-devel@vger.kernel.org, coreteam@netfilter.org, linux-sctp@vger.kernel.org, linux-hams@vger.kernel.org, linux-bluetooth@vger.kernel.org, bridge@lists.linux-foundation.org, linux-can@vger.kernel.org, dccp@vger.kernel.org, linux-decnet-user@lists.sourceforge.net, linux-wpan@vger.kernel.org, linux-s390@vger.kernel.org, mptcp@lists.01.org, lvs-devel@vger.kernel.org, rds-devel@oss.oracle.com, linux-afs@lists.infradead.org, tipc-discussion@lists.sourceforge.net, linux-x25@vger.kernel.org Subject: [PATCH 24/24] net: pass a sockptr_t into ->setsockopt Date: Mon, 20 Jul 2020 14:47:37 +0200 Message-Id: <20200720124737.118617-25-hch@lst.de> In-Reply-To: <20200720124737.118617-1-hch@lst.de> References: <20200720124737.118617-1-hch@lst.de> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Sender: linux-bluetooth-owner@vger.kernel.org Precedence: bulk
Series	[01/24] bpfilter: reject kernel addresses \| expand [01/24] bpfilter: reject kernel addresses [02/24] bpfilter: fix up a sparse annotation [03/24] net: add a new sockptr_t type [04/24] net: switch copy_bpf_fprog_from_user to sockptr_t [05/24] net: switch sock_setbindtodevice to sockptr_t [06/24] net: switch sock_set_timeout to sockptr_t [07/24] net: switch sock_set_timeout to sockptr_t [08/24] net/xfrm: switch xfrm_user_policy to sockptr_t [09/24] netfilter: remove the unused user argument to do_update_counters [10/24] netfilter: switch xt_copy_counters to sockptr_t [11/24] netfilter: switch nf_setsockopt to sockptr_t [12/24] bpfilter: switch bpfilter_ip_set_sockopt to sockptr_t [13/24] net/ipv4: switch ip_mroute_setsockopt to sockptr_t [14/24] net/ipv4: merge ip_options_get and ip_options_get_from_user [15/24] net/ipv4: switch do_ip_setsockopt to sockptr_t [16/24] net/ipv6: switch ip6_mroute_setsockopt to sockptr_t [17/24] net/ipv6: split up ipv6_flowlabel_opt [18/24] net/ipv6: switch ipv6_flowlabel_opt to sockptr_t [19/24] net/ipv6: factor out a ipv6_set_opt_hdr helper [20/24] net/ipv6: switch do_ipv6_setsockopt to sockptr_t [21/24] net/udp: switch udp_lib_setsockopt to sockptr_t [22/24] net/tcp: switch ->md5_parse to sockptr_t [23/24] net/tcp: switch do_tcp_setsockopt to sockptr_t [24/24] net: pass a sockptr_t into ->setsockopt

Hello. On 20.07.20 14:47, Christoph Hellwig wrote: > Rework the remaining setsockopt code to pass a sockptr_t instead of a > plain user pointer. This removes the last remaining set_fs(KERNEL_DS) > outside of architecture specific code. > > Signed-off-by: Christoph Hellwig <hch@lst.de> > --- > crypto/af_alg.c | 7 ++-- > drivers/crypto/chelsio/chtls/chtls_main.c | 18 ++++++----- > drivers/isdn/mISDN/socket.c | 4 +-- > include/linux/net.h | 4 ++- > include/net/inet_connection_sock.h | 3 +- > include/net/ip.h | 2 +- > include/net/ipv6.h | 4 +-- > include/net/sctp/structs.h | 2 +- > include/net/sock.h | 4 +-- > include/net/tcp.h | 4 +-- > net/atm/common.c | 6 ++-- > net/atm/common.h | 2 +- > net/atm/pvc.c | 2 +- > net/atm/svc.c | 6 ++-- > net/ax25/af_ax25.c | 6 ++-- > net/bluetooth/hci_sock.c | 8 ++--- > net/bluetooth/l2cap_sock.c | 22 ++++++------- > net/bluetooth/rfcomm/sock.c | 12 ++++--- > net/bluetooth/sco.c | 6 ++-- > net/caif/caif_socket.c | 8 ++--- > net/can/j1939/socket.c | 12 +++---- > net/can/raw.c | 16 +++++----- > net/core/sock.c | 2 +- > net/dccp/dccp.h | 2 +- > net/dccp/proto.c | 20 ++++++------ > net/decnet/af_decnet.c | 16 ++++++---- > net/ieee802154/socket.c | 6 ++-- > net/ipv4/ip_sockglue.c | 13 +++----- > net/ipv4/raw.c | 8 ++--- > net/ipv4/tcp.c | 5 ++- > net/ipv4/udp.c | 6 ++-- > net/ipv4/udp_impl.h | 4 +-- > net/ipv6/ipv6_sockglue.c | 10 +++--- > net/ipv6/raw.c | 10 +++--- > net/ipv6/udp.c | 6 ++-- > net/ipv6/udp_impl.h | 4 +-- > net/iucv/af_iucv.c | 4 +-- > net/kcm/kcmsock.c | 6 ++-- > net/l2tp/l2tp_ppp.c | 4 +-- > net/llc/af_llc.c | 4 +-- > net/mptcp/protocol.c | 14 ++++---- > net/netlink/af_netlink.c | 4 +-- > net/netrom/af_netrom.c | 4 +-- > net/nfc/llcp_sock.c | 6 ++-- > net/packet/af_packet.c | 39 ++++++++++++----------- > net/phonet/pep.c | 4 +-- > net/rds/af_rds.c | 30 ++++++++--------- > net/rds/rdma.c | 14 ++++---- > net/rds/rds.h | 6 ++-- > net/rose/af_rose.c | 4 +-- > net/rxrpc/af_rxrpc.c | 8 ++--- > net/rxrpc/ar-internal.h | 4 +-- > net/rxrpc/key.c | 9 +++--- > net/sctp/socket.c | 4 +-- > net/smc/af_smc.c | 4 +-- > net/socket.c | 23 ++++--------- > net/tipc/socket.c | 8 ++--- > net/tls/tls_main.c | 17 +++++----- > net/vmw_vsock/af_vsock.c | 4 +-- > net/x25/af_x25.c | 4 +-- > net/xdp/xsk.c | 8 ++--- > 61 files changed, 248 insertions(+), 258 deletions(-) > > diff --git a/crypto/af_alg.c b/crypto/af_alg.c > index 29f71428520b4b..892242a42c3ec9 100644 > --- a/crypto/af_alg.c > +++ b/crypto/af_alg.c > @@ -197,8 +197,7 @@ static int alg_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) > return err; > } > > -static int alg_setkey(struct sock *sk, char __user *ukey, > - unsigned int keylen) > +static int alg_setkey(struct sock *sk, sockptr_t ukey, unsigned int keylen) > { > struct alg_sock *ask = alg_sk(sk); > const struct af_alg_type *type = ask->type; > @@ -210,7 +209,7 @@ static int alg_setkey(struct sock *sk, char __user *ukey, > return -ENOMEM; > > err = -EFAULT; > - if (copy_from_user(key, ukey, keylen)) > + if (copy_from_sockptr(key, ukey, keylen)) > goto out; > > err = type->setkey(ask->private, key, keylen); > @@ -222,7 +221,7 @@ static int alg_setkey(struct sock *sk, char __user *ukey, > } > > static int alg_setsockopt(struct socket *sock, int level, int optname, > - char __user *optval, unsigned int optlen) > + sockptr_t optval, unsigned int optlen) > { > struct sock *sk = sock->sk; > struct alg_sock *ask = alg_sk(sk); > diff --git a/drivers/crypto/chelsio/chtls/chtls_main.c b/drivers/crypto/chelsio/chtls/chtls_main.c > index d98b89d0fa6eeb..c3058dcdb33c5c 100644 > --- a/drivers/crypto/chelsio/chtls/chtls_main.c > +++ b/drivers/crypto/chelsio/chtls/chtls_main.c > @@ -488,7 +488,7 @@ static int chtls_getsockopt(struct sock *sk, int level, int optname, > } > > static int do_chtls_setsockopt(struct sock *sk, int optname, > - char __user *optval, unsigned int optlen) > + sockptr_t optval, unsigned int optlen) > { > struct tls_crypto_info *crypto_info, tmp_crypto_info; > struct chtls_sock *csk; > @@ -498,12 +498,12 @@ static int do_chtls_setsockopt(struct sock *sk, int optname, > > csk = rcu_dereference_sk_user_data(sk); > > - if (!optval || optlen < sizeof(*crypto_info)) { > + if (sockptr_is_null(optval) || optlen < sizeof(*crypto_info)) { > rc = -EINVAL; > goto out; > } > > - rc = copy_from_user(&tmp_crypto_info, optval, sizeof(*crypto_info)); > + rc = copy_from_sockptr(&tmp_crypto_info, optval, sizeof(*crypto_info)); > if (rc) { > rc = -EFAULT; > goto out; > @@ -525,8 +525,9 @@ static int do_chtls_setsockopt(struct sock *sk, int optname, > /* Obtain version and type from previous copy */ > crypto_info[0] = tmp_crypto_info; > /* Now copy the following data */ > - rc = copy_from_user((char *)crypto_info + sizeof(*crypto_info), > - optval + sizeof(*crypto_info), > + sockptr_advance(optval, sizeof(*crypto_info)); > + rc = copy_from_sockptr((char *)crypto_info + sizeof(*crypto_info), > + optval, > sizeof(struct tls12_crypto_info_aes_gcm_128) > - sizeof(*crypto_info)); > > @@ -541,8 +542,9 @@ static int do_chtls_setsockopt(struct sock *sk, int optname, > } > case TLS_CIPHER_AES_GCM_256: { > crypto_info[0] = tmp_crypto_info; > - rc = copy_from_user((char *)crypto_info + sizeof(*crypto_info), > - optval + sizeof(*crypto_info), > + sockptr_advance(optval, sizeof(*crypto_info)); > + rc = copy_from_sockptr((char *)crypto_info + sizeof(*crypto_info), > + optval, > sizeof(struct tls12_crypto_info_aes_gcm_256) > - sizeof(*crypto_info)); > > @@ -565,7 +567,7 @@ static int do_chtls_setsockopt(struct sock *sk, int optname, > } > > static int chtls_setsockopt(struct sock *sk, int level, int optname, > - char __user *optval, unsigned int optlen) > + sockptr_t optval, unsigned int optlen) > { > struct tls_context *ctx = tls_get_ctx(sk); > > diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c > index 1b2b91479107bc..2835daae9e9f3a 100644 > --- a/drivers/isdn/mISDN/socket.c > +++ b/drivers/isdn/mISDN/socket.c > @@ -401,7 +401,7 @@ data_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) > } > > static int data_sock_setsockopt(struct socket *sock, int level, int optname, > - char __user *optval, unsigned int len) > + sockptr_t optval, unsigned int len) > { > struct sock *sk = sock->sk; > int err = 0, opt = 0; > @@ -414,7 +414,7 @@ static int data_sock_setsockopt(struct socket *sock, int level, int optname, > > switch (optname) { > case MISDN_TIME_STAMP: > - if (get_user(opt, (int __user *)optval)) { > + if (copy_from_sockptr(&opt, optval, sizeof(int))) { > err = -EFAULT; > break; > } > diff --git a/include/linux/net.h b/include/linux/net.h > index 858ff1d981540d..d48ff11808794c 100644 > --- a/include/linux/net.h > +++ b/include/linux/net.h > @@ -21,6 +21,7 @@ > #include <linux/rcupdate.h> > #include <linux/once.h> > #include <linux/fs.h> > +#include <linux/sockptr.h> > > #include <uapi/linux/net.h> > > @@ -162,7 +163,8 @@ struct proto_ops { > int (*listen) (struct socket *sock, int len); > int (*shutdown) (struct socket *sock, int flags); > int (*setsockopt)(struct socket *sock, int level, > - int optname, char __user *optval, unsigned int optlen); > + int optname, sockptr_t optval, > + unsigned int optlen); > int (*getsockopt)(struct socket *sock, int level, > int optname, char __user *optval, int __user *optlen); > void (*show_fdinfo)(struct seq_file *m, struct socket *sock); > diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h > index 157c60cca0ca60..1e209ce7d1bd1b 100644 > --- a/include/net/inet_connection_sock.h > +++ b/include/net/inet_connection_sock.h > @@ -16,6 +16,7 @@ > #include <linux/timer.h> > #include <linux/poll.h> > #include <linux/kernel.h> > +#include <linux/sockptr.h> > > #include <net/inet_sock.h> > #include <net/request_sock.h> > @@ -45,7 +46,7 @@ struct inet_connection_sock_af_ops { > u16 net_frag_header_len; > u16 sockaddr_len; > int (*setsockopt)(struct sock *sk, int level, int optname, > - char __user *optval, unsigned int optlen); > + sockptr_t optval, unsigned int optlen); > int (*getsockopt)(struct sock *sk, int level, int optname, > char __user *optval, int __user *optlen); > void (*addr2sockaddr)(struct sock *sk, struct sockaddr *); > diff --git a/include/net/ip.h b/include/net/ip.h > index d66ad3a9522081..b09c48d862cc10 100644 > --- a/include/net/ip.h > +++ b/include/net/ip.h > @@ -722,7 +722,7 @@ void ip_cmsg_recv_offset(struct msghdr *msg, struct sock *sk, > struct sk_buff *skb, int tlen, int offset); > int ip_cmsg_send(struct sock *sk, struct msghdr *msg, > struct ipcm_cookie *ipc, bool allow_ipv6); > -int ip_setsockopt(struct sock *sk, int level, int optname, char __user *optval, > +int ip_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, > unsigned int optlen); > int ip_getsockopt(struct sock *sk, int level, int optname, char __user *optval, > int __user *optlen); > diff --git a/include/net/ipv6.h b/include/net/ipv6.h > index 4c9d89b5d73268..bd1f396cc9c729 100644 > --- a/include/net/ipv6.h > +++ b/include/net/ipv6.h > @@ -1084,8 +1084,8 @@ struct in6_addr *fl6_update_dst(struct flowi6 *fl6, > * socket options (ipv6_sockglue.c) > */ > > -int ipv6_setsockopt(struct sock *sk, int level, int optname, > - char __user *optval, unsigned int optlen); > +int ipv6_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, > + unsigned int optlen); > int ipv6_getsockopt(struct sock *sk, int level, int optname, > char __user *optval, int __user *optlen); > > diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h > index 233bbf7df5d66c..b33f1aefad0989 100644 > --- a/include/net/sctp/structs.h > +++ b/include/net/sctp/structs.h > @@ -431,7 +431,7 @@ struct sctp_af { > int (*setsockopt) (struct sock *sk, > int level, > int optname, > - char __user *optval, > + sockptr_t optval, > unsigned int optlen); > int (*getsockopt) (struct sock *sk, > int level, > diff --git a/include/net/sock.h b/include/net/sock.h > index bfb2fe2fc36876..2cc3ba667908de 100644 > --- a/include/net/sock.h > +++ b/include/net/sock.h > @@ -1141,7 +1141,7 @@ struct proto { > void (*destroy)(struct sock *sk); > void (*shutdown)(struct sock *sk, int how); > int (*setsockopt)(struct sock *sk, int level, > - int optname, char __user *optval, > + int optname, sockptr_t optval, > unsigned int optlen); > int (*getsockopt)(struct sock *sk, int level, > int optname, char __user *optval, > @@ -1734,7 +1734,7 @@ int sock_common_getsockopt(struct socket *sock, int level, int optname, > int sock_common_recvmsg(struct socket *sock, struct msghdr *msg, size_t size, > int flags); > int sock_common_setsockopt(struct socket *sock, int level, int optname, > - char __user *optval, unsigned int optlen); > + sockptr_t optval, unsigned int optlen); > > void sk_common_release(struct sock *sk); > > diff --git a/include/net/tcp.h b/include/net/tcp.h > index e3c8e1d820214c..e0c35d56091f22 100644 > --- a/include/net/tcp.h > +++ b/include/net/tcp.h > @@ -399,8 +399,8 @@ __poll_t tcp_poll(struct file *file, struct socket *sock, > struct poll_table_struct *wait); > int tcp_getsockopt(struct sock *sk, int level, int optname, > char __user *optval, int __user *optlen); > -int tcp_setsockopt(struct sock *sk, int level, int optname, > - char __user *optval, unsigned int optlen); > +int tcp_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, > + unsigned int optlen); > void tcp_set_keepalive(struct sock *sk, int val); > void tcp_syn_ack_timeout(const struct request_sock *req); > int tcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock, > diff --git a/net/atm/common.c b/net/atm/common.c > index 9b28f1fb3c69c8..84367b844b1473 100644 > --- a/net/atm/common.c > +++ b/net/atm/common.c > @@ -745,7 +745,7 @@ static int check_qos(const struct atm_qos *qos) > } > > int vcc_setsockopt(struct socket *sock, int level, int optname, > - char __user *optval, unsigned int optlen) > + sockptr_t optval, unsigned int optlen) > { > struct atm_vcc *vcc; > unsigned long value; > @@ -760,7 +760,7 @@ int vcc_setsockopt(struct socket *sock, int level, int optname, > { > struct atm_qos qos; > > - if (copy_from_user(&qos, optval, sizeof(qos))) > + if (copy_from_sockptr(&qos, optval, sizeof(qos))) > return -EFAULT; > error = check_qos(&qos); > if (error) > @@ -774,7 +774,7 @@ int vcc_setsockopt(struct socket *sock, int level, int optname, > return 0; > } > case SO_SETCLP: > - if (get_user(value, (unsigned long __user *)optval)) > + if (copy_from_sockptr(&value, optval, sizeof(value))) > return -EFAULT; > if (value) > vcc->atm_options |= ATM_ATMOPT_CLP; > diff --git a/net/atm/common.h b/net/atm/common.h > index 5850649068bb29..a1e56e8de698a3 100644 > --- a/net/atm/common.h > +++ b/net/atm/common.h > @@ -21,7 +21,7 @@ __poll_t vcc_poll(struct file *file, struct socket *sock, poll_table *wait); > int vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg); > int vcc_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg); > int vcc_setsockopt(struct socket *sock, int level, int optname, > - char __user *optval, unsigned int optlen); > + sockptr_t optval, unsigned int optlen); > int vcc_getsockopt(struct socket *sock, int level, int optname, > char __user *optval, int __user *optlen); > void vcc_process_recv_queue(struct atm_vcc *vcc); > diff --git a/net/atm/pvc.c b/net/atm/pvc.c > index 02bd2a436bdf9e..53e7d3f39e26cc 100644 > --- a/net/atm/pvc.c > +++ b/net/atm/pvc.c > @@ -63,7 +63,7 @@ static int pvc_connect(struct socket *sock, struct sockaddr *sockaddr, > } > > static int pvc_setsockopt(struct socket *sock, int level, int optname, > - char __user *optval, unsigned int optlen) > + sockptr_t optval, unsigned int optlen) > { > struct sock *sk = sock->sk; > int error; > diff --git a/net/atm/svc.c b/net/atm/svc.c > index ba144d035e3d41..4a02bcaad279f8 100644 > --- a/net/atm/svc.c > +++ b/net/atm/svc.c > @@ -451,7 +451,7 @@ int svc_change_qos(struct atm_vcc *vcc, struct atm_qos *qos) > } > > static int svc_setsockopt(struct socket *sock, int level, int optname, > - char __user *optval, unsigned int optlen) > + sockptr_t optval, unsigned int optlen) > { > struct sock *sk = sock->sk; > struct atm_vcc *vcc = ATM_SD(sock); > @@ -464,7 +464,7 @@ static int svc_setsockopt(struct socket *sock, int level, int optname, > error = -EINVAL; > goto out; > } > - if (copy_from_user(&vcc->sap, optval, optlen)) { > + if (copy_from_sockptr(&vcc->sap, optval, optlen)) { > error = -EFAULT; > goto out; > } > @@ -475,7 +475,7 @@ static int svc_setsockopt(struct socket *sock, int level, int optname, > error = -EINVAL; > goto out; > } > - if (get_user(value, (int __user *)optval)) { > + if (copy_from_sockptr(&value, optval, sizeof(int))) { > error = -EFAULT; > goto out; > } > diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c > index fd91cd34f25e03..17bf31a8969284 100644 > --- a/net/ax25/af_ax25.c > +++ b/net/ax25/af_ax25.c > @@ -528,7 +528,7 @@ ax25_cb *ax25_create_cb(void) > */ > > static int ax25_setsockopt(struct socket *sock, int level, int optname, > - char __user *optval, unsigned int optlen) > + sockptr_t optval, unsigned int optlen) > { > struct sock *sk = sock->sk; > ax25_cb *ax25; > @@ -543,7 +543,7 @@ static int ax25_setsockopt(struct socket *sock, int level, int optname, > if (optlen < sizeof(unsigned int)) > return -EINVAL; > > - if (get_user(opt, (unsigned int __user *)optval)) > + if (copy_from_sockptr(&opt, optval, sizeof(unsigned int))) > return -EFAULT; > > lock_sock(sk); > @@ -640,7 +640,7 @@ static int ax25_setsockopt(struct socket *sock, int level, int optname, > > memset(devname, 0, sizeof(devname)); > > - if (copy_from_user(devname, optval, optlen)) { > + if (copy_from_sockptr(devname, optval, optlen)) { > res = -EFAULT; > break; > } > diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c > index caf38a8ea6a8ba..d5eff27d5b1e17 100644 > --- a/net/bluetooth/hci_sock.c > +++ b/net/bluetooth/hci_sock.c > @@ -1842,7 +1842,7 @@ static int hci_sock_sendmsg(struct socket *sock, struct msghdr *msg, > } > > static int hci_sock_setsockopt(struct socket *sock, int level, int optname, > - char __user *optval, unsigned int len) > + sockptr_t optval, unsigned int len) > { > struct hci_ufilter uf = { .opcode = 0 }; > struct sock *sk = sock->sk; > @@ -1862,7 +1862,7 @@ static int hci_sock_setsockopt(struct socket *sock, int level, int optname, > > switch (optname) { > case HCI_DATA_DIR: > - if (get_user(opt, (int __user *)optval)) { > + if (copy_from_sockptr(&opt, optval, sizeof(opt))) { > err = -EFAULT; > break; > } > @@ -1874,7 +1874,7 @@ static int hci_sock_setsockopt(struct socket *sock, int level, int optname, > break; > > case HCI_TIME_STAMP: > - if (get_user(opt, (int __user *)optval)) { > + if (copy_from_sockptr(&opt, optval, sizeof(opt))) { > err = -EFAULT; > break; > } > @@ -1896,7 +1896,7 @@ static int hci_sock_setsockopt(struct socket *sock, int level, int optname, > } > > len = min_t(unsigned int, len, sizeof(uf)); > - if (copy_from_user(&uf, optval, len)) { > + if (copy_from_sockptr(&uf, optval, len)) { > err = -EFAULT; > break; > } > diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c > index a995d2c51fa7f1..a3d104123f38dd 100644 > --- a/net/bluetooth/l2cap_sock.c > +++ b/net/bluetooth/l2cap_sock.c > @@ -703,7 +703,7 @@ static bool l2cap_valid_mtu(struct l2cap_chan *chan, u16 mtu) > } > > static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, > - char __user *optval, unsigned int optlen) > + sockptr_t optval, unsigned int optlen) > { > struct sock *sk = sock->sk; > struct l2cap_chan *chan = l2cap_pi(sk)->chan; > @@ -736,7 +736,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, > opts.txwin_size = chan->tx_win; > > len = min_t(unsigned int, sizeof(opts), optlen); > - if (copy_from_user((char *) &opts, optval, len)) { > + if (copy_from_sockptr(&opts, optval, len)) { > err = -EFAULT; > break; > } > @@ -782,7 +782,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, > break; > > case L2CAP_LM: > - if (get_user(opt, (u32 __user *) optval)) { > + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { > err = -EFAULT; > break; > } > @@ -859,7 +859,7 @@ static int l2cap_set_mode(struct l2cap_chan *chan, u8 mode) > } > > static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, > - char __user *optval, unsigned int optlen) > + sockptr_t optval, unsigned int optlen) > { > struct sock *sk = sock->sk; > struct l2cap_chan *chan = l2cap_pi(sk)->chan; > @@ -891,7 +891,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, > sec.level = BT_SECURITY_LOW; > > len = min_t(unsigned int, sizeof(sec), optlen); > - if (copy_from_user((char *) &sec, optval, len)) { > + if (copy_from_sockptr(&sec, optval, len)) { > err = -EFAULT; > break; > } > @@ -939,7 +939,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, > break; > } > > - if (get_user(opt, (u32 __user *) optval)) { > + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { > err = -EFAULT; > break; > } > @@ -954,7 +954,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, > break; > > case BT_FLUSHABLE: > - if (get_user(opt, (u32 __user *) optval)) { > + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { > err = -EFAULT; > break; > } > @@ -990,7 +990,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, > pwr.force_active = BT_POWER_FORCE_ACTIVE_ON; > > len = min_t(unsigned int, sizeof(pwr), optlen); > - if (copy_from_user((char *) &pwr, optval, len)) { > + if (copy_from_sockptr(&pwr, optval, len)) { > err = -EFAULT; > break; > } > @@ -1002,7 +1002,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, > break; > > case BT_CHANNEL_POLICY: > - if (get_user(opt, (u32 __user *) optval)) { > + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { > err = -EFAULT; > break; > } > @@ -1050,7 +1050,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, > break; > } > > - if (get_user(opt, (u16 __user *) optval)) { > + if (copy_from_sockptr(&opt, optval, sizeof(u16))) { > err = -EFAULT; > break; > } > @@ -1081,7 +1081,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, > break; > } > > - if (get_user(opt, (u8 __user *) optval)) { > + if (copy_from_sockptr(&opt, optval, sizeof(u8))) { > err = -EFAULT; > break; > } > diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c > index df14eebe80da8b..dba4ea0e1b0dc7 100644 > --- a/net/bluetooth/rfcomm/sock.c > +++ b/net/bluetooth/rfcomm/sock.c > @@ -644,7 +644,8 @@ static int rfcomm_sock_recvmsg(struct socket *sock, struct msghdr *msg, > return len; > } > > -static int rfcomm_sock_setsockopt_old(struct socket *sock, int optname, char __user *optval, unsigned int optlen) > +static int rfcomm_sock_setsockopt_old(struct socket *sock, int optname, > + sockptr_t optval, unsigned int optlen) > { > struct sock *sk = sock->sk; > int err = 0; > @@ -656,7 +657,7 @@ static int rfcomm_sock_setsockopt_old(struct socket *sock, int optname, char __u > > switch (optname) { > case RFCOMM_LM: > - if (get_user(opt, (u32 __user *) optval)) { > + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { > err = -EFAULT; > break; > } > @@ -685,7 +686,8 @@ static int rfcomm_sock_setsockopt_old(struct socket *sock, int optname, char __u > return err; > } > > -static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen) > +static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, > + sockptr_t optval, unsigned int optlen) > { > struct sock *sk = sock->sk; > struct bt_security sec; > @@ -713,7 +715,7 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, c > sec.level = BT_SECURITY_LOW; > > len = min_t(unsigned int, sizeof(sec), optlen); > - if (copy_from_user((char *) &sec, optval, len)) { > + if (copy_from_sockptr(&sec, optval, len)) { > err = -EFAULT; > break; > } > @@ -732,7 +734,7 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, c > break; > } > > - if (get_user(opt, (u32 __user *) optval)) { > + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { > err = -EFAULT; > break; > } > diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c > index c8c3d38cdc7b56..37260baf71507b 100644 > --- a/net/bluetooth/sco.c > +++ b/net/bluetooth/sco.c > @@ -791,7 +791,7 @@ static int sco_sock_recvmsg(struct socket *sock, struct msghdr *msg, > } > > static int sco_sock_setsockopt(struct socket *sock, int level, int optname, > - char __user *optval, unsigned int optlen) > + sockptr_t optval, unsigned int optlen) > { > struct sock *sk = sock->sk; > int len, err = 0; > @@ -810,7 +810,7 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname, > break; > } > > - if (get_user(opt, (u32 __user *) optval)) { > + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { > err = -EFAULT; > break; > } > @@ -831,7 +831,7 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname, > voice.setting = sco_pi(sk)->setting; > > len = min_t(unsigned int, sizeof(voice), optlen); > - if (copy_from_user((char *)&voice, optval, len)) { > + if (copy_from_sockptr(&voice, optval, len)) { > err = -EFAULT; > break; > } > diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c > index b94ecd931002e7..3ad0a1df671283 100644 > --- a/net/caif/caif_socket.c > +++ b/net/caif/caif_socket.c > @@ -669,8 +669,8 @@ static int caif_stream_sendmsg(struct socket *sock, struct msghdr *msg, > return sent ? : err; > } > > -static int setsockopt(struct socket *sock, > - int lvl, int opt, char __user *ov, unsigned int ol) > +static int setsockopt(struct socket *sock, int lvl, int opt, sockptr_t ov, > + unsigned int ol) > { > struct sock *sk = sock->sk; > struct caifsock *cf_sk = container_of(sk, struct caifsock, sk); > @@ -685,7 +685,7 @@ static int setsockopt(struct socket *sock, > return -EINVAL; > if (lvl != SOL_CAIF) > goto bad_sol; > - if (copy_from_user(&linksel, ov, sizeof(int))) > + if (copy_from_sockptr(&linksel, ov, sizeof(int))) > return -EINVAL; > lock_sock(&(cf_sk->sk)); > cf_sk->conn_req.link_selector = linksel; > @@ -699,7 +699,7 @@ static int setsockopt(struct socket *sock, > return -ENOPROTOOPT; > lock_sock(&(cf_sk->sk)); > if (ol > sizeof(cf_sk->conn_req.param.data) || > - copy_from_user(&cf_sk->conn_req.param.data, ov, ol)) { > + copy_from_sockptr(&cf_sk->conn_req.param.data, ov, ol)) { > release_sock(&cf_sk->sk); > return -EINVAL; > } > diff --git a/net/can/j1939/socket.c b/net/can/j1939/socket.c > index f7587428febdd2..78ff9b3f1d40c7 100644 > --- a/net/can/j1939/socket.c > +++ b/net/can/j1939/socket.c > @@ -627,14 +627,14 @@ static int j1939_sk_release(struct socket *sock) > return 0; > } > > -static int j1939_sk_setsockopt_flag(struct j1939_sock *jsk, char __user *optval, > +static int j1939_sk_setsockopt_flag(struct j1939_sock *jsk, sockptr_t optval, > unsigned int optlen, int flag) > { > int tmp; > > if (optlen != sizeof(tmp)) > return -EINVAL; > - if (copy_from_user(&tmp, optval, optlen)) > + if (copy_from_sockptr(&tmp, optval, optlen)) > return -EFAULT; > lock_sock(&jsk->sk); > if (tmp) > @@ -646,7 +646,7 @@ static int j1939_sk_setsockopt_flag(struct j1939_sock *jsk, char __user *optval, > } > > static int j1939_sk_setsockopt(struct socket *sock, int level, int optname, > - char __user *optval, unsigned int optlen) > + sockptr_t optval, unsigned int optlen) > { > struct sock *sk = sock->sk; > struct j1939_sock *jsk = j1939_sk(sk); > @@ -658,7 +658,7 @@ static int j1939_sk_setsockopt(struct socket *sock, int level, int optname, > > switch (optname) { > case SO_J1939_FILTER: > - if (optval) { > + if (!sockptr_is_null(optval)) { > struct j1939_filter *f; > int c; > > @@ -670,7 +670,7 @@ static int j1939_sk_setsockopt(struct socket *sock, int level, int optname, > return -EINVAL; > > count = optlen / sizeof(*filters); > - filters = memdup_user(optval, optlen); > + filters = memdup_sockptr(optval, optlen); > if (IS_ERR(filters)) > return PTR_ERR(filters); > > @@ -703,7 +703,7 @@ static int j1939_sk_setsockopt(struct socket *sock, int level, int optname, > case SO_J1939_SEND_PRIO: > if (optlen != sizeof(tmp)) > return -EINVAL; > - if (copy_from_user(&tmp, optval, optlen)) > + if (copy_from_sockptr(&tmp, optval, optlen)) > return -EFAULT; > if (tmp < 0 || tmp > 7) > return -EDOM; > diff --git a/net/can/raw.c b/net/can/raw.c > index 59c039d73c6d58..94a9405658dc61 100644 > --- a/net/can/raw.c > +++ b/net/can/raw.c > @@ -485,7 +485,7 @@ static int raw_getname(struct socket *sock, struct sockaddr *uaddr, > } > > static int raw_setsockopt(struct socket *sock, int level, int optname, > - char __user *optval, unsigned int optlen) > + sockptr_t optval, unsigned int optlen) > { > struct sock *sk = sock->sk; > struct raw_sock *ro = raw_sk(sk); > @@ -511,11 +511,11 @@ static int raw_setsockopt(struct socket *sock, int level, int optname, > > if (count > 1) { > /* filter does not fit into dfilter => alloc space */ > - filter = memdup_user(optval, optlen); > + filter = memdup_sockptr(optval, optlen); > if (IS_ERR(filter)) > return PTR_ERR(filter); > } else if (count == 1) { > - if (copy_from_user(&sfilter, optval, sizeof(sfilter))) > + if (copy_from_sockptr(&sfilter, optval, sizeof(sfilter))) > return -EFAULT; > } > > @@ -568,7 +568,7 @@ static int raw_setsockopt(struct socket *sock, int level, int optname, > if (optlen != sizeof(err_mask)) > return -EINVAL; > > - if (copy_from_user(&err_mask, optval, optlen)) > + if (copy_from_sockptr(&err_mask, optval, optlen)) > return -EFAULT; > > err_mask &= CAN_ERR_MASK; > @@ -607,7 +607,7 @@ static int raw_setsockopt(struct socket *sock, int level, int optname, > if (optlen != sizeof(ro->loopback)) > return -EINVAL; > > - if (copy_from_user(&ro->loopback, optval, optlen)) > + if (copy_from_sockptr(&ro->loopback, optval, optlen)) > return -EFAULT; > > break; > @@ -616,7 +616,7 @@ static int raw_setsockopt(struct socket *sock, int level, int optname, > if (optlen != sizeof(ro->recv_own_msgs)) > return -EINVAL; > > - if (copy_from_user(&ro->recv_own_msgs, optval, optlen)) > + if (copy_from_sockptr(&ro->recv_own_msgs, optval, optlen)) > return -EFAULT; > > break; > @@ -625,7 +625,7 @@ static int raw_setsockopt(struct socket *sock, int level, int optname, > if (optlen != sizeof(ro->fd_frames)) > return -EINVAL; > > - if (copy_from_user(&ro->fd_frames, optval, optlen)) > + if (copy_from_sockptr(&ro->fd_frames, optval, optlen)) > return -EFAULT; > > break; > @@ -634,7 +634,7 @@ static int raw_setsockopt(struct socket *sock, int level, int optname, > if (optlen != sizeof(ro->join_filters)) > return -EINVAL; > > - if (copy_from_user(&ro->join_filters, optval, optlen)) > + if (copy_from_sockptr(&ro->join_filters, optval, optlen)) > return -EFAULT; > > break; > diff --git a/net/core/sock.c b/net/core/sock.c > index 9cf8318bc51de4..ff22629f10ce92 100644 > --- a/net/core/sock.c > +++ b/net/core/sock.c > @@ -3210,7 +3210,7 @@ EXPORT_SYMBOL(sock_common_recvmsg); > * Set socket options on an inet socket. > */ > int sock_common_setsockopt(struct socket *sock, int level, int optname, > - char __user *optval, unsigned int optlen) > + sockptr_t optval, unsigned int optlen) > { > struct sock *sk = sock->sk; > > diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h > index 434eea91b7679d..9cc9d1ee6cdb9a 100644 > --- a/net/dccp/dccp.h > +++ b/net/dccp/dccp.h > @@ -295,7 +295,7 @@ int dccp_disconnect(struct sock *sk, int flags); > int dccp_getsockopt(struct sock *sk, int level, int optname, > char __user *optval, int __user *optlen); > int dccp_setsockopt(struct sock *sk, int level, int optname, > - char __user *optval, unsigned int optlen); > + sockptr_t optval, unsigned int optlen); > int dccp_ioctl(struct sock *sk, int cmd, unsigned long arg); > int dccp_sendmsg(struct sock *sk, struct msghdr *msg, size_t size); > int dccp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock, > diff --git a/net/dccp/proto.c b/net/dccp/proto.c > index fd92d3fe321f08..9e58787047f197 100644 > --- a/net/dccp/proto.c > +++ b/net/dccp/proto.c > @@ -402,7 +402,7 @@ int dccp_ioctl(struct sock *sk, int cmd, unsigned long arg) > EXPORT_SYMBOL_GPL(dccp_ioctl); > > static int dccp_setsockopt_service(struct sock *sk, const __be32 service, > - char __user *optval, unsigned int optlen) > + sockptr_t optval, unsigned int optlen) > { > struct dccp_sock *dp = dccp_sk(sk); > struct dccp_service_list *sl = NULL; > @@ -417,9 +417,9 @@ static int dccp_setsockopt_service(struct sock *sk, const __be32 service, > return -ENOMEM; > > sl->dccpsl_nr = optlen / sizeof(u32) - 1; > - if (copy_from_user(sl->dccpsl_list, > - optval + sizeof(service), > - optlen - sizeof(service)) || > + sockptr_advance(optval, sizeof(service)); > + if (copy_from_sockptr(sl->dccpsl_list, optval, > + optlen - sizeof(service)) || > dccp_list_has_service(sl, DCCP_SERVICE_INVALID_VALUE)) { > kfree(sl); > return -EFAULT; > @@ -473,7 +473,7 @@ static int dccp_setsockopt_cscov(struct sock *sk, int cscov, bool rx) > } > > static int dccp_setsockopt_ccid(struct sock *sk, int type, > - char __user *optval, unsigned int optlen) > + sockptr_t optval, unsigned int optlen) > { > u8 *val; > int rc = 0; > @@ -481,7 +481,7 @@ static int dccp_setsockopt_ccid(struct sock *sk, int type, > if (optlen < 1 || optlen > DCCP_FEAT_MAX_SP_VALS) > return -EINVAL; > > - val = memdup_user(optval, optlen); > + val = memdup_sockptr(optval, optlen); > if (IS_ERR(val)) > return PTR_ERR(val); > > @@ -498,7 +498,7 @@ static int dccp_setsockopt_ccid(struct sock *sk, int type, > } > > static int do_dccp_setsockopt(struct sock *sk, int level, int optname, > - char __user *optval, unsigned int optlen) > + sockptr_t optval, unsigned int optlen) > { > struct dccp_sock *dp = dccp_sk(sk); > int val, err = 0; > @@ -520,7 +520,7 @@ static int do_dccp_setsockopt(struct sock *sk, int level, int optname, > if (optlen < (int)sizeof(int)) > return -EINVAL; > > - if (get_user(val, (int __user *)optval)) > + if (copy_from_sockptr(&val, optval, sizeof(int))) > return -EFAULT; > > if (optname == DCCP_SOCKOPT_SERVICE) > @@ -563,8 +563,8 @@ static int do_dccp_setsockopt(struct sock *sk, int level, int optname, > return err; > } > > -int dccp_setsockopt(struct sock *sk, int level, int optname, > - char __user *optval, unsigned int optlen) > +int dccp_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, > + unsigned int optlen) > { > if (level != SOL_DCCP) > return inet_csk(sk)->icsk_af_ops->setsockopt(sk, level, > diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c > index 7d51ab608fb3f1..3b53d766789d47 100644 > --- a/net/decnet/af_decnet.c > +++ b/net/decnet/af_decnet.c > @@ -150,7 +150,8 @@ static struct hlist_head dn_sk_hash[DN_SK_HASH_SIZE]; > static struct hlist_head dn_wild_sk; > static atomic_long_t decnet_memory_allocated; > > -static int __dn_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen, int flags); > +static int __dn_setsockopt(struct socket *sock, int level, int optname, > + sockptr_t optval, unsigned int optlen, int flags); > static int __dn_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen, int flags); > > static struct hlist_head *dn_find_list(struct sock *sk) > @@ -1320,7 +1321,8 @@ static int dn_shutdown(struct socket *sock, int how) > return err; > } > > -static int dn_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen) > +static int dn_setsockopt(struct socket *sock, int level, int optname, > + sockptr_t optval, unsigned int optlen) > { > struct sock *sk = sock->sk; > int err; > @@ -1332,14 +1334,14 @@ static int dn_setsockopt(struct socket *sock, int level, int optname, char __use > /* we need to exclude all possible ENOPROTOOPTs except default case */ > if (err == -ENOPROTOOPT && optname != DSO_LINKINFO && > optname != DSO_STREAM && optname != DSO_SEQPACKET) > - err = nf_setsockopt(sk, PF_DECnet, optname, > - USER_SOCKPTR(optval), optlen); > + err = nf_setsockopt(sk, PF_DECnet, optname, optval, optlen); > #endif > > return err; > } > > -static int __dn_setsockopt(struct socket *sock, int level,int optname, char __user *optval, unsigned int optlen, int flags) > +static int __dn_setsockopt(struct socket *sock, int level, int optname, > + sockptr_t optval, unsigned int optlen, int flags) > { > struct sock *sk = sock->sk; > struct dn_scp *scp = DN_SK(sk); > @@ -1355,13 +1357,13 @@ static int __dn_setsockopt(struct socket *sock, int level,int optname, char __us > } u; > int err; > > - if (optlen && !optval) > + if (optlen && sockptr_is_null(optval)) > return -EINVAL; > > if (optlen > sizeof(u)) > return -EINVAL; > > - if (copy_from_user(&u, optval, optlen)) > + if (copy_from_sockptr(&u, optval, optlen)) > return -EFAULT; > > switch (optname) { > diff --git a/net/ieee802154/socket.c b/net/ieee802154/socket.c > index 94ae9662133e30..a45a0401adc50b 100644 > --- a/net/ieee802154/socket.c > +++ b/net/ieee802154/socket.c > @@ -382,7 +382,7 @@ static int raw_getsockopt(struct sock *sk, int level, int optname, > } > > static int raw_setsockopt(struct sock *sk, int level, int optname, > - char __user *optval, unsigned int optlen) > + sockptr_t optval, unsigned int optlen) > { > return -EOPNOTSUPP; > } > @@ -872,7 +872,7 @@ static int dgram_getsockopt(struct sock *sk, int level, int optname, > } > > static int dgram_setsockopt(struct sock *sk, int level, int optname, > - char __user *optval, unsigned int optlen) > + sockptr_t optval, unsigned int optlen) > { > struct dgram_sock *ro = dgram_sk(sk); > struct net *net = sock_net(sk); > @@ -882,7 +882,7 @@ static int dgram_setsockopt(struct sock *sk, int level, int optname, > if (optlen < sizeof(int)) > return -EINVAL; > > - if (get_user(val, (int __user *)optval)) > + if (copy_from_sockptr(&val, optval, sizeof(int))) > return -EFAULT; > For the ieee802154 part: Acked-by: Stefan Schmidt <stefan@datenfreihafen.org> regards Stefan Schmidt

diff --git a/crypto/af_alg.c b/crypto/af_alg.c index 29f71428520b4b..892242a42c3ec9 100644 --- a/crypto/af_alg.c +++ b/crypto/af_alg.c @@ -197,8 +197,7 @@ static int alg_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len) return err; } -static int alg_setkey(struct sock *sk, char __user *ukey, - unsigned int keylen) +static int alg_setkey(struct sock *sk, sockptr_t ukey, unsigned int keylen) { struct alg_sock *ask = alg_sk(sk); const struct af_alg_type *type = ask->type; @@ -210,7 +209,7 @@ static int alg_setkey(struct sock *sk, char __user *ukey, return -ENOMEM; err = -EFAULT; - if (copy_from_user(key, ukey, keylen)) + if (copy_from_sockptr(key, ukey, keylen)) goto out; err = type->setkey(ask->private, key, keylen); @@ -222,7 +221,7 @@ static int alg_setkey(struct sock *sk, char __user *ukey, } static int alg_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct alg_sock *ask = alg_sk(sk); diff --git a/drivers/crypto/chelsio/chtls/chtls_main.c b/drivers/crypto/chelsio/chtls/chtls_main.c index d98b89d0fa6eeb..c3058dcdb33c5c 100644 --- a/drivers/crypto/chelsio/chtls/chtls_main.c +++ b/drivers/crypto/chelsio/chtls/chtls_main.c @@ -488,7 +488,7 @@ static int chtls_getsockopt(struct sock *sk, int level, int optname, } static int do_chtls_setsockopt(struct sock *sk, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct tls_crypto_info *crypto_info, tmp_crypto_info; struct chtls_sock *csk; @@ -498,12 +498,12 @@ static int do_chtls_setsockopt(struct sock *sk, int optname, csk = rcu_dereference_sk_user_data(sk); - if (!optval || optlen < sizeof(*crypto_info)) { + if (sockptr_is_null(optval) || optlen < sizeof(*crypto_info)) { rc = -EINVAL; goto out; } - rc = copy_from_user(&tmp_crypto_info, optval, sizeof(*crypto_info)); + rc = copy_from_sockptr(&tmp_crypto_info, optval, sizeof(*crypto_info)); if (rc) { rc = -EFAULT; goto out; @@ -525,8 +525,9 @@ static int do_chtls_setsockopt(struct sock *sk, int optname, /* Obtain version and type from previous copy */ crypto_info[0] = tmp_crypto_info; /* Now copy the following data */ - rc = copy_from_user((char *)crypto_info + sizeof(*crypto_info), - optval + sizeof(*crypto_info), + sockptr_advance(optval, sizeof(*crypto_info)); + rc = copy_from_sockptr((char *)crypto_info + sizeof(*crypto_info), + optval, sizeof(struct tls12_crypto_info_aes_gcm_128) - sizeof(*crypto_info)); @@ -541,8 +542,9 @@ static int do_chtls_setsockopt(struct sock *sk, int optname, } case TLS_CIPHER_AES_GCM_256: { crypto_info[0] = tmp_crypto_info; - rc = copy_from_user((char *)crypto_info + sizeof(*crypto_info), - optval + sizeof(*crypto_info), + sockptr_advance(optval, sizeof(*crypto_info)); + rc = copy_from_sockptr((char *)crypto_info + sizeof(*crypto_info), + optval, sizeof(struct tls12_crypto_info_aes_gcm_256) - sizeof(*crypto_info)); @@ -565,7 +567,7 @@ static int do_chtls_setsockopt(struct sock *sk, int optname, } static int chtls_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct tls_context *ctx = tls_get_ctx(sk); diff --git a/drivers/isdn/mISDN/socket.c b/drivers/isdn/mISDN/socket.c index 1b2b91479107bc..2835daae9e9f3a 100644 --- a/drivers/isdn/mISDN/socket.c +++ b/drivers/isdn/mISDN/socket.c @@ -401,7 +401,7 @@ data_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) } static int data_sock_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int len) + sockptr_t optval, unsigned int len) { struct sock *sk = sock->sk; int err = 0, opt = 0; @@ -414,7 +414,7 @@ static int data_sock_setsockopt(struct socket *sock, int level, int optname, switch (optname) { case MISDN_TIME_STAMP: - if (get_user(opt, (int __user *)optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(int))) { err = -EFAULT; break; } diff --git a/include/linux/net.h b/include/linux/net.h index 858ff1d981540d..d48ff11808794c 100644 --- a/include/linux/net.h +++ b/include/linux/net.h @@ -21,6 +21,7 @@ #include <linux/rcupdate.h> #include <linux/once.h> #include <linux/fs.h> +#include <linux/sockptr.h> #include <uapi/linux/net.h> @@ -162,7 +163,8 @@ struct proto_ops { int (*listen) (struct socket *sock, int len); int (*shutdown) (struct socket *sock, int flags); int (*setsockopt)(struct socket *sock, int level, - int optname, char __user *optval, unsigned int optlen); + int optname, sockptr_t optval, + unsigned int optlen); int (*getsockopt)(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen); void (*show_fdinfo)(struct seq_file *m, struct socket *sock); diff --git a/include/net/inet_connection_sock.h b/include/net/inet_connection_sock.h index 157c60cca0ca60..1e209ce7d1bd1b 100644 --- a/include/net/inet_connection_sock.h +++ b/include/net/inet_connection_sock.h @@ -16,6 +16,7 @@ #include <linux/timer.h> #include <linux/poll.h> #include <linux/kernel.h> +#include <linux/sockptr.h> #include <net/inet_sock.h> #include <net/request_sock.h> @@ -45,7 +46,7 @@ struct inet_connection_sock_af_ops { u16 net_frag_header_len; u16 sockaddr_len; int (*setsockopt)(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen); + sockptr_t optval, unsigned int optlen); int (*getsockopt)(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); void (*addr2sockaddr)(struct sock *sk, struct sockaddr *); diff --git a/include/net/ip.h b/include/net/ip.h index d66ad3a9522081..b09c48d862cc10 100644 --- a/include/net/ip.h +++ b/include/net/ip.h @@ -722,7 +722,7 @@ void ip_cmsg_recv_offset(struct msghdr *msg, struct sock *sk, struct sk_buff *skb, int tlen, int offset); int ip_cmsg_send(struct sock *sk, struct msghdr *msg, struct ipcm_cookie *ipc, bool allow_ipv6); -int ip_setsockopt(struct sock *sk, int level, int optname, char __user *optval, +int ip_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, unsigned int optlen); int ip_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); diff --git a/include/net/ipv6.h b/include/net/ipv6.h index 4c9d89b5d73268..bd1f396cc9c729 100644 --- a/include/net/ipv6.h +++ b/include/net/ipv6.h @@ -1084,8 +1084,8 @@ struct in6_addr *fl6_update_dst(struct flowi6 *fl6, * socket options (ipv6_sockglue.c) */ -int ipv6_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen); +int ipv6_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, + unsigned int optlen); int ipv6_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); diff --git a/include/net/sctp/structs.h b/include/net/sctp/structs.h index 233bbf7df5d66c..b33f1aefad0989 100644 --- a/include/net/sctp/structs.h +++ b/include/net/sctp/structs.h @@ -431,7 +431,7 @@ struct sctp_af { int (*setsockopt) (struct sock *sk, int level, int optname, - char __user *optval, + sockptr_t optval, unsigned int optlen); int (*getsockopt) (struct sock *sk, int level, diff --git a/include/net/sock.h b/include/net/sock.h index bfb2fe2fc36876..2cc3ba667908de 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -1141,7 +1141,7 @@ struct proto { void (*destroy)(struct sock *sk); void (*shutdown)(struct sock *sk, int how); int (*setsockopt)(struct sock *sk, int level, - int optname, char __user *optval, + int optname, sockptr_t optval, unsigned int optlen); int (*getsockopt)(struct sock *sk, int level, int optname, char __user *optval, @@ -1734,7 +1734,7 @@ int sock_common_getsockopt(struct socket *sock, int level, int optname, int sock_common_recvmsg(struct socket *sock, struct msghdr *msg, size_t size, int flags); int sock_common_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen); + sockptr_t optval, unsigned int optlen); void sk_common_release(struct sock *sk); diff --git a/include/net/tcp.h b/include/net/tcp.h index e3c8e1d820214c..e0c35d56091f22 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -399,8 +399,8 @@ __poll_t tcp_poll(struct file *file, struct socket *sock, struct poll_table_struct *wait); int tcp_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); -int tcp_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen); +int tcp_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, + unsigned int optlen); void tcp_set_keepalive(struct sock *sk, int val); void tcp_syn_ack_timeout(const struct request_sock *req); int tcp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock, diff --git a/net/atm/common.c b/net/atm/common.c index 9b28f1fb3c69c8..84367b844b1473 100644 --- a/net/atm/common.c +++ b/net/atm/common.c @@ -745,7 +745,7 @@ static int check_qos(const struct atm_qos *qos) } int vcc_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct atm_vcc *vcc; unsigned long value; @@ -760,7 +760,7 @@ int vcc_setsockopt(struct socket *sock, int level, int optname, { struct atm_qos qos; - if (copy_from_user(&qos, optval, sizeof(qos))) + if (copy_from_sockptr(&qos, optval, sizeof(qos))) return -EFAULT; error = check_qos(&qos); if (error) @@ -774,7 +774,7 @@ int vcc_setsockopt(struct socket *sock, int level, int optname, return 0; } case SO_SETCLP: - if (get_user(value, (unsigned long __user *)optval)) + if (copy_from_sockptr(&value, optval, sizeof(value))) return -EFAULT; if (value) vcc->atm_options |= ATM_ATMOPT_CLP; diff --git a/net/atm/common.h b/net/atm/common.h index 5850649068bb29..a1e56e8de698a3 100644 --- a/net/atm/common.h +++ b/net/atm/common.h @@ -21,7 +21,7 @@ __poll_t vcc_poll(struct file *file, struct socket *sock, poll_table *wait); int vcc_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg); int vcc_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg); int vcc_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen); + sockptr_t optval, unsigned int optlen); int vcc_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen); void vcc_process_recv_queue(struct atm_vcc *vcc); diff --git a/net/atm/pvc.c b/net/atm/pvc.c index 02bd2a436bdf9e..53e7d3f39e26cc 100644 --- a/net/atm/pvc.c +++ b/net/atm/pvc.c @@ -63,7 +63,7 @@ static int pvc_connect(struct socket *sock, struct sockaddr *sockaddr, } static int pvc_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; int error; diff --git a/net/atm/svc.c b/net/atm/svc.c index ba144d035e3d41..4a02bcaad279f8 100644 --- a/net/atm/svc.c +++ b/net/atm/svc.c @@ -451,7 +451,7 @@ int svc_change_qos(struct atm_vcc *vcc, struct atm_qos *qos) } static int svc_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct atm_vcc *vcc = ATM_SD(sock); @@ -464,7 +464,7 @@ static int svc_setsockopt(struct socket *sock, int level, int optname, error = -EINVAL; goto out; } - if (copy_from_user(&vcc->sap, optval, optlen)) { + if (copy_from_sockptr(&vcc->sap, optval, optlen)) { error = -EFAULT; goto out; } @@ -475,7 +475,7 @@ static int svc_setsockopt(struct socket *sock, int level, int optname, error = -EINVAL; goto out; } - if (get_user(value, (int __user *)optval)) { + if (copy_from_sockptr(&value, optval, sizeof(int))) { error = -EFAULT; goto out; } diff --git a/net/ax25/af_ax25.c b/net/ax25/af_ax25.c index fd91cd34f25e03..17bf31a8969284 100644 --- a/net/ax25/af_ax25.c +++ b/net/ax25/af_ax25.c @@ -528,7 +528,7 @@ ax25_cb *ax25_create_cb(void) */ static int ax25_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; ax25_cb *ax25; @@ -543,7 +543,7 @@ static int ax25_setsockopt(struct socket *sock, int level, int optname, if (optlen < sizeof(unsigned int)) return -EINVAL; - if (get_user(opt, (unsigned int __user *)optval)) + if (copy_from_sockptr(&opt, optval, sizeof(unsigned int))) return -EFAULT; lock_sock(sk); @@ -640,7 +640,7 @@ static int ax25_setsockopt(struct socket *sock, int level, int optname, memset(devname, 0, sizeof(devname)); - if (copy_from_user(devname, optval, optlen)) { + if (copy_from_sockptr(devname, optval, optlen)) { res = -EFAULT; break; } diff --git a/net/bluetooth/hci_sock.c b/net/bluetooth/hci_sock.c index caf38a8ea6a8ba..d5eff27d5b1e17 100644 --- a/net/bluetooth/hci_sock.c +++ b/net/bluetooth/hci_sock.c @@ -1842,7 +1842,7 @@ static int hci_sock_sendmsg(struct socket *sock, struct msghdr *msg, } static int hci_sock_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int len) + sockptr_t optval, unsigned int len) { struct hci_ufilter uf = { .opcode = 0 }; struct sock *sk = sock->sk; @@ -1862,7 +1862,7 @@ static int hci_sock_setsockopt(struct socket *sock, int level, int optname, switch (optname) { case HCI_DATA_DIR: - if (get_user(opt, (int __user *)optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(opt))) { err = -EFAULT; break; } @@ -1874,7 +1874,7 @@ static int hci_sock_setsockopt(struct socket *sock, int level, int optname, break; case HCI_TIME_STAMP: - if (get_user(opt, (int __user *)optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(opt))) { err = -EFAULT; break; } @@ -1896,7 +1896,7 @@ static int hci_sock_setsockopt(struct socket *sock, int level, int optname, } len = min_t(unsigned int, len, sizeof(uf)); - if (copy_from_user(&uf, optval, len)) { + if (copy_from_sockptr(&uf, optval, len)) { err = -EFAULT; break; } diff --git a/net/bluetooth/l2cap_sock.c b/net/bluetooth/l2cap_sock.c index a995d2c51fa7f1..a3d104123f38dd 100644 --- a/net/bluetooth/l2cap_sock.c +++ b/net/bluetooth/l2cap_sock.c @@ -703,7 +703,7 @@ static bool l2cap_valid_mtu(struct l2cap_chan *chan, u16 mtu) } static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct l2cap_chan *chan = l2cap_pi(sk)->chan; @@ -736,7 +736,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, opts.txwin_size = chan->tx_win; len = min_t(unsigned int, sizeof(opts), optlen); - if (copy_from_user((char *) &opts, optval, len)) { + if (copy_from_sockptr(&opts, optval, len)) { err = -EFAULT; break; } @@ -782,7 +782,7 @@ static int l2cap_sock_setsockopt_old(struct socket *sock, int optname, break; case L2CAP_LM: - if (get_user(opt, (u32 __user *) optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { err = -EFAULT; break; } @@ -859,7 +859,7 @@ static int l2cap_set_mode(struct l2cap_chan *chan, u8 mode) } static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct l2cap_chan *chan = l2cap_pi(sk)->chan; @@ -891,7 +891,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, sec.level = BT_SECURITY_LOW; len = min_t(unsigned int, sizeof(sec), optlen); - if (copy_from_user((char *) &sec, optval, len)) { + if (copy_from_sockptr(&sec, optval, len)) { err = -EFAULT; break; } @@ -939,7 +939,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, break; } - if (get_user(opt, (u32 __user *) optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { err = -EFAULT; break; } @@ -954,7 +954,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, break; case BT_FLUSHABLE: - if (get_user(opt, (u32 __user *) optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { err = -EFAULT; break; } @@ -990,7 +990,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, pwr.force_active = BT_POWER_FORCE_ACTIVE_ON; len = min_t(unsigned int, sizeof(pwr), optlen); - if (copy_from_user((char *) &pwr, optval, len)) { + if (copy_from_sockptr(&pwr, optval, len)) { err = -EFAULT; break; } @@ -1002,7 +1002,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, break; case BT_CHANNEL_POLICY: - if (get_user(opt, (u32 __user *) optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { err = -EFAULT; break; } @@ -1050,7 +1050,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, break; } - if (get_user(opt, (u16 __user *) optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(u16))) { err = -EFAULT; break; } @@ -1081,7 +1081,7 @@ static int l2cap_sock_setsockopt(struct socket *sock, int level, int optname, break; } - if (get_user(opt, (u8 __user *) optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(u8))) { err = -EFAULT; break; } diff --git a/net/bluetooth/rfcomm/sock.c b/net/bluetooth/rfcomm/sock.c index df14eebe80da8b..dba4ea0e1b0dc7 100644 --- a/net/bluetooth/rfcomm/sock.c +++ b/net/bluetooth/rfcomm/sock.c @@ -644,7 +644,8 @@ static int rfcomm_sock_recvmsg(struct socket *sock, struct msghdr *msg, return len; } -static int rfcomm_sock_setsockopt_old(struct socket *sock, int optname, char __user *optval, unsigned int optlen) +static int rfcomm_sock_setsockopt_old(struct socket *sock, int optname, + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; int err = 0; @@ -656,7 +657,7 @@ static int rfcomm_sock_setsockopt_old(struct socket *sock, int optname, char __u switch (optname) { case RFCOMM_LM: - if (get_user(opt, (u32 __user *) optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { err = -EFAULT; break; } @@ -685,7 +686,8 @@ static int rfcomm_sock_setsockopt_old(struct socket *sock, int optname, char __u return err; } -static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen) +static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct bt_security sec; @@ -713,7 +715,7 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, c sec.level = BT_SECURITY_LOW; len = min_t(unsigned int, sizeof(sec), optlen); - if (copy_from_user((char *) &sec, optval, len)) { + if (copy_from_sockptr(&sec, optval, len)) { err = -EFAULT; break; } @@ -732,7 +734,7 @@ static int rfcomm_sock_setsockopt(struct socket *sock, int level, int optname, c break; } - if (get_user(opt, (u32 __user *) optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { err = -EFAULT; break; } diff --git a/net/bluetooth/sco.c b/net/bluetooth/sco.c index c8c3d38cdc7b56..37260baf71507b 100644 --- a/net/bluetooth/sco.c +++ b/net/bluetooth/sco.c @@ -791,7 +791,7 @@ static int sco_sock_recvmsg(struct socket *sock, struct msghdr *msg, } static int sco_sock_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; int len, err = 0; @@ -810,7 +810,7 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname, break; } - if (get_user(opt, (u32 __user *) optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { err = -EFAULT; break; } @@ -831,7 +831,7 @@ static int sco_sock_setsockopt(struct socket *sock, int level, int optname, voice.setting = sco_pi(sk)->setting; len = min_t(unsigned int, sizeof(voice), optlen); - if (copy_from_user((char *)&voice, optval, len)) { + if (copy_from_sockptr(&voice, optval, len)) { err = -EFAULT; break; } diff --git a/net/caif/caif_socket.c b/net/caif/caif_socket.c index b94ecd931002e7..3ad0a1df671283 100644 --- a/net/caif/caif_socket.c +++ b/net/caif/caif_socket.c @@ -669,8 +669,8 @@ static int caif_stream_sendmsg(struct socket *sock, struct msghdr *msg, return sent ? : err; } -static int setsockopt(struct socket *sock, - int lvl, int opt, char __user *ov, unsigned int ol) +static int setsockopt(struct socket *sock, int lvl, int opt, sockptr_t ov, + unsigned int ol) { struct sock *sk = sock->sk; struct caifsock *cf_sk = container_of(sk, struct caifsock, sk); @@ -685,7 +685,7 @@ static int setsockopt(struct socket *sock, return -EINVAL; if (lvl != SOL_CAIF) goto bad_sol; - if (copy_from_user(&linksel, ov, sizeof(int))) + if (copy_from_sockptr(&linksel, ov, sizeof(int))) return -EINVAL; lock_sock(&(cf_sk->sk)); cf_sk->conn_req.link_selector = linksel; @@ -699,7 +699,7 @@ static int setsockopt(struct socket *sock, return -ENOPROTOOPT; lock_sock(&(cf_sk->sk)); if (ol > sizeof(cf_sk->conn_req.param.data) || - copy_from_user(&cf_sk->conn_req.param.data, ov, ol)) { + copy_from_sockptr(&cf_sk->conn_req.param.data, ov, ol)) { release_sock(&cf_sk->sk); return -EINVAL; } diff --git a/net/can/j1939/socket.c b/net/can/j1939/socket.c index f7587428febdd2..78ff9b3f1d40c7 100644 --- a/net/can/j1939/socket.c +++ b/net/can/j1939/socket.c @@ -627,14 +627,14 @@ static int j1939_sk_release(struct socket *sock) return 0; } -static int j1939_sk_setsockopt_flag(struct j1939_sock *jsk, char __user *optval, +static int j1939_sk_setsockopt_flag(struct j1939_sock *jsk, sockptr_t optval, unsigned int optlen, int flag) { int tmp; if (optlen != sizeof(tmp)) return -EINVAL; - if (copy_from_user(&tmp, optval, optlen)) + if (copy_from_sockptr(&tmp, optval, optlen)) return -EFAULT; lock_sock(&jsk->sk); if (tmp) @@ -646,7 +646,7 @@ static int j1939_sk_setsockopt_flag(struct j1939_sock *jsk, char __user *optval, } static int j1939_sk_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct j1939_sock *jsk = j1939_sk(sk); @@ -658,7 +658,7 @@ static int j1939_sk_setsockopt(struct socket *sock, int level, int optname, switch (optname) { case SO_J1939_FILTER: - if (optval) { + if (!sockptr_is_null(optval)) { struct j1939_filter *f; int c; @@ -670,7 +670,7 @@ static int j1939_sk_setsockopt(struct socket *sock, int level, int optname, return -EINVAL; count = optlen / sizeof(*filters); - filters = memdup_user(optval, optlen); + filters = memdup_sockptr(optval, optlen); if (IS_ERR(filters)) return PTR_ERR(filters); @@ -703,7 +703,7 @@ static int j1939_sk_setsockopt(struct socket *sock, int level, int optname, case SO_J1939_SEND_PRIO: if (optlen != sizeof(tmp)) return -EINVAL; - if (copy_from_user(&tmp, optval, optlen)) + if (copy_from_sockptr(&tmp, optval, optlen)) return -EFAULT; if (tmp < 0 || tmp > 7) return -EDOM; diff --git a/net/can/raw.c b/net/can/raw.c index 59c039d73c6d58..94a9405658dc61 100644 --- a/net/can/raw.c +++ b/net/can/raw.c @@ -485,7 +485,7 @@ static int raw_getname(struct socket *sock, struct sockaddr *uaddr, } static int raw_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct raw_sock *ro = raw_sk(sk); @@ -511,11 +511,11 @@ static int raw_setsockopt(struct socket *sock, int level, int optname, if (count > 1) { /* filter does not fit into dfilter => alloc space */ - filter = memdup_user(optval, optlen); + filter = memdup_sockptr(optval, optlen); if (IS_ERR(filter)) return PTR_ERR(filter); } else if (count == 1) { - if (copy_from_user(&sfilter, optval, sizeof(sfilter))) + if (copy_from_sockptr(&sfilter, optval, sizeof(sfilter))) return -EFAULT; } @@ -568,7 +568,7 @@ static int raw_setsockopt(struct socket *sock, int level, int optname, if (optlen != sizeof(err_mask)) return -EINVAL; - if (copy_from_user(&err_mask, optval, optlen)) + if (copy_from_sockptr(&err_mask, optval, optlen)) return -EFAULT; err_mask &= CAN_ERR_MASK; @@ -607,7 +607,7 @@ static int raw_setsockopt(struct socket *sock, int level, int optname, if (optlen != sizeof(ro->loopback)) return -EINVAL; - if (copy_from_user(&ro->loopback, optval, optlen)) + if (copy_from_sockptr(&ro->loopback, optval, optlen)) return -EFAULT; break; @@ -616,7 +616,7 @@ static int raw_setsockopt(struct socket *sock, int level, int optname, if (optlen != sizeof(ro->recv_own_msgs)) return -EINVAL; - if (copy_from_user(&ro->recv_own_msgs, optval, optlen)) + if (copy_from_sockptr(&ro->recv_own_msgs, optval, optlen)) return -EFAULT; break; @@ -625,7 +625,7 @@ static int raw_setsockopt(struct socket *sock, int level, int optname, if (optlen != sizeof(ro->fd_frames)) return -EINVAL; - if (copy_from_user(&ro->fd_frames, optval, optlen)) + if (copy_from_sockptr(&ro->fd_frames, optval, optlen)) return -EFAULT; break; @@ -634,7 +634,7 @@ static int raw_setsockopt(struct socket *sock, int level, int optname, if (optlen != sizeof(ro->join_filters)) return -EINVAL; - if (copy_from_user(&ro->join_filters, optval, optlen)) + if (copy_from_sockptr(&ro->join_filters, optval, optlen)) return -EFAULT; break; diff --git a/net/core/sock.c b/net/core/sock.c index 9cf8318bc51de4..ff22629f10ce92 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -3210,7 +3210,7 @@ EXPORT_SYMBOL(sock_common_recvmsg); * Set socket options on an inet socket. */ int sock_common_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h index 434eea91b7679d..9cc9d1ee6cdb9a 100644 --- a/net/dccp/dccp.h +++ b/net/dccp/dccp.h @@ -295,7 +295,7 @@ int dccp_disconnect(struct sock *sk, int flags); int dccp_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); int dccp_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen); + sockptr_t optval, unsigned int optlen); int dccp_ioctl(struct sock *sk, int cmd, unsigned long arg); int dccp_sendmsg(struct sock *sk, struct msghdr *msg, size_t size); int dccp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock, diff --git a/net/dccp/proto.c b/net/dccp/proto.c index fd92d3fe321f08..9e58787047f197 100644 --- a/net/dccp/proto.c +++ b/net/dccp/proto.c @@ -402,7 +402,7 @@ int dccp_ioctl(struct sock *sk, int cmd, unsigned long arg) EXPORT_SYMBOL_GPL(dccp_ioctl); static int dccp_setsockopt_service(struct sock *sk, const __be32 service, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct dccp_sock *dp = dccp_sk(sk); struct dccp_service_list *sl = NULL; @@ -417,9 +417,9 @@ static int dccp_setsockopt_service(struct sock *sk, const __be32 service, return -ENOMEM; sl->dccpsl_nr = optlen / sizeof(u32) - 1; - if (copy_from_user(sl->dccpsl_list, - optval + sizeof(service), - optlen - sizeof(service)) || + sockptr_advance(optval, sizeof(service)); + if (copy_from_sockptr(sl->dccpsl_list, optval, + optlen - sizeof(service)) || dccp_list_has_service(sl, DCCP_SERVICE_INVALID_VALUE)) { kfree(sl); return -EFAULT; @@ -473,7 +473,7 @@ static int dccp_setsockopt_cscov(struct sock *sk, int cscov, bool rx) } static int dccp_setsockopt_ccid(struct sock *sk, int type, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { u8 *val; int rc = 0; @@ -481,7 +481,7 @@ static int dccp_setsockopt_ccid(struct sock *sk, int type, if (optlen < 1 || optlen > DCCP_FEAT_MAX_SP_VALS) return -EINVAL; - val = memdup_user(optval, optlen); + val = memdup_sockptr(optval, optlen); if (IS_ERR(val)) return PTR_ERR(val); @@ -498,7 +498,7 @@ static int dccp_setsockopt_ccid(struct sock *sk, int type, } static int do_dccp_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct dccp_sock *dp = dccp_sk(sk); int val, err = 0; @@ -520,7 +520,7 @@ static int do_dccp_setsockopt(struct sock *sk, int level, int optname, if (optlen < (int)sizeof(int)) return -EINVAL; - if (get_user(val, (int __user *)optval)) + if (copy_from_sockptr(&val, optval, sizeof(int))) return -EFAULT; if (optname == DCCP_SOCKOPT_SERVICE) @@ -563,8 +563,8 @@ static int do_dccp_setsockopt(struct sock *sk, int level, int optname, return err; } -int dccp_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) +int dccp_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, + unsigned int optlen) { if (level != SOL_DCCP) return inet_csk(sk)->icsk_af_ops->setsockopt(sk, level, diff --git a/net/decnet/af_decnet.c b/net/decnet/af_decnet.c index 7d51ab608fb3f1..3b53d766789d47 100644 --- a/net/decnet/af_decnet.c +++ b/net/decnet/af_decnet.c @@ -150,7 +150,8 @@ static struct hlist_head dn_sk_hash[DN_SK_HASH_SIZE]; static struct hlist_head dn_wild_sk; static atomic_long_t decnet_memory_allocated; -static int __dn_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen, int flags); +static int __dn_setsockopt(struct socket *sock, int level, int optname, + sockptr_t optval, unsigned int optlen, int flags); static int __dn_getsockopt(struct socket *sock, int level, int optname, char __user *optval, int __user *optlen, int flags); static struct hlist_head *dn_find_list(struct sock *sk) @@ -1320,7 +1321,8 @@ static int dn_shutdown(struct socket *sock, int how) return err; } -static int dn_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen) +static int dn_setsockopt(struct socket *sock, int level, int optname, + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; int err; @@ -1332,14 +1334,14 @@ static int dn_setsockopt(struct socket *sock, int level, int optname, char __use /* we need to exclude all possible ENOPROTOOPTs except default case */ if (err == -ENOPROTOOPT && optname != DSO_LINKINFO && optname != DSO_STREAM && optname != DSO_SEQPACKET) - err = nf_setsockopt(sk, PF_DECnet, optname, - USER_SOCKPTR(optval), optlen); + err = nf_setsockopt(sk, PF_DECnet, optname, optval, optlen); #endif return err; } -static int __dn_setsockopt(struct socket *sock, int level,int optname, char __user *optval, unsigned int optlen, int flags) +static int __dn_setsockopt(struct socket *sock, int level, int optname, + sockptr_t optval, unsigned int optlen, int flags) { struct sock *sk = sock->sk; struct dn_scp *scp = DN_SK(sk); @@ -1355,13 +1357,13 @@ static int __dn_setsockopt(struct socket *sock, int level,int optname, char __us } u; int err; - if (optlen && !optval) + if (optlen && sockptr_is_null(optval)) return -EINVAL; if (optlen > sizeof(u)) return -EINVAL; - if (copy_from_user(&u, optval, optlen)) + if (copy_from_sockptr(&u, optval, optlen)) return -EFAULT; switch (optname) { diff --git a/net/ieee802154/socket.c b/net/ieee802154/socket.c index 94ae9662133e30..a45a0401adc50b 100644 --- a/net/ieee802154/socket.c +++ b/net/ieee802154/socket.c @@ -382,7 +382,7 @@ static int raw_getsockopt(struct sock *sk, int level, int optname, } static int raw_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { return -EOPNOTSUPP; } @@ -872,7 +872,7 @@ static int dgram_getsockopt(struct sock *sk, int level, int optname, } static int dgram_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct dgram_sock *ro = dgram_sk(sk); struct net *net = sock_net(sk); @@ -882,7 +882,7 @@ static int dgram_setsockopt(struct sock *sk, int level, int optname, if (optlen < sizeof(int)) return -EINVAL; - if (get_user(val, (int __user *)optval)) + if (copy_from_sockptr(&val, optval, sizeof(int))) return -EFAULT; lock_sock(sk); diff --git a/net/ipv4/ip_sockglue.c b/net/ipv4/ip_sockglue.c index f7f1507b89fe24..8dc027e54c5bfb 100644 --- a/net/ipv4/ip_sockglue.c +++ b/net/ipv4/ip_sockglue.c @@ -1401,21 +1401,19 @@ void ipv4_pktinfo_prepare(const struct sock *sk, struct sk_buff *skb) skb_dst_drop(skb); } -int ip_setsockopt(struct sock *sk, int level, - int optname, char __user *optval, unsigned int optlen) +int ip_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, + unsigned int optlen) { int err; if (level != SOL_IP) return -ENOPROTOOPT; - err = do_ip_setsockopt(sk, level, optname, USER_SOCKPTR(optval), - optlen); + err = do_ip_setsockopt(sk, level, optname, optval, optlen); #if IS_ENABLED(CONFIG_BPFILTER_UMH) if (optname >= BPFILTER_IPT_SO_SET_REPLACE && optname < BPFILTER_IPT_SET_MAX) - err = bpfilter_ip_set_sockopt(sk, optname, USER_SOCKPTR(optval), - optlen); + err = bpfilter_ip_set_sockopt(sk, optname, optval, optlen); #endif #ifdef CONFIG_NETFILTER /* we need to exclude all possible ENOPROTOOPTs except default case */ @@ -1423,8 +1421,7 @@ int ip_setsockopt(struct sock *sk, int level, optname != IP_IPSEC_POLICY && optname != IP_XFRM_POLICY && !ip_mroute_opt(optname)) - err = nf_setsockopt(sk, PF_INET, optname, USER_SOCKPTR(optval), - optlen); + err = nf_setsockopt(sk, PF_INET, optname, optval, optlen); #endif return err; } diff --git a/net/ipv4/raw.c b/net/ipv4/raw.c index 2a57d633b31e00..6fd4330287c279 100644 --- a/net/ipv4/raw.c +++ b/net/ipv4/raw.c @@ -809,11 +809,11 @@ static int raw_sk_init(struct sock *sk) return 0; } -static int raw_seticmpfilter(struct sock *sk, char __user *optval, int optlen) +static int raw_seticmpfilter(struct sock *sk, sockptr_t optval, int optlen) { if (optlen > sizeof(struct icmp_filter)) optlen = sizeof(struct icmp_filter); - if (copy_from_user(&raw_sk(sk)->filter, optval, optlen)) + if (copy_from_sockptr(&raw_sk(sk)->filter, optval, optlen)) return -EFAULT; return 0; } @@ -838,7 +838,7 @@ out: return ret; } static int do_raw_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { if (optname == ICMP_FILTER) { if (inet_sk(sk)->inet_num != IPPROTO_ICMP) @@ -850,7 +850,7 @@ static int do_raw_setsockopt(struct sock *sk, int level, int optname, } static int raw_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { if (level != SOL_RAW) return ip_setsockopt(sk, level, optname, optval, optlen); diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 71cbc61c335f71..27de9380ed140e 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -3323,7 +3323,7 @@ static int do_tcp_setsockopt(struct sock *sk, int level, int optname, return err; } -int tcp_setsockopt(struct sock *sk, int level, int optname, char __user *optval, +int tcp_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, unsigned int optlen) { const struct inet_connection_sock *icsk = inet_csk(sk); @@ -3331,8 +3331,7 @@ int tcp_setsockopt(struct sock *sk, int level, int optname, char __user *optval, if (level != SOL_TCP) return icsk->icsk_af_ops->setsockopt(sk, level, optname, optval, optlen); - return do_tcp_setsockopt(sk, level, optname, USER_SOCKPTR(optval), - optlen); + return do_tcp_setsockopt(sk, level, optname, optval, optlen); } EXPORT_SYMBOL(tcp_setsockopt); diff --git a/net/ipv4/udp.c b/net/ipv4/udp.c index 641303aa17d3dd..00b794a1035ce1 100644 --- a/net/ipv4/udp.c +++ b/net/ipv4/udp.c @@ -2647,12 +2647,12 @@ int udp_lib_setsockopt(struct sock *sk, int level, int optname, } EXPORT_SYMBOL(udp_lib_setsockopt); -int udp_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) +int udp_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, + unsigned int optlen) { if (level == SOL_UDP || level == SOL_UDPLITE) return udp_lib_setsockopt(sk, level, optname, - USER_SOCKPTR(optval), optlen, + optval, optlen, udp_push_pending_frames); return ip_setsockopt(sk, level, optname, optval, optlen); } diff --git a/net/ipv4/udp_impl.h b/net/ipv4/udp_impl.h index ab313702c87f30..2878d8285cafe7 100644 --- a/net/ipv4/udp_impl.h +++ b/net/ipv4/udp_impl.h @@ -12,8 +12,8 @@ int __udp4_lib_err(struct sk_buff *, u32, struct udp_table *); int udp_v4_get_port(struct sock *sk, unsigned short snum); void udp_v4_rehash(struct sock *sk); -int udp_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen); +int udp_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, + unsigned int optlen); int udp_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); diff --git a/net/ipv6/ipv6_sockglue.c b/net/ipv6/ipv6_sockglue.c index dcd000a5a9b124..d2282f5c9760f9 100644 --- a/net/ipv6/ipv6_sockglue.c +++ b/net/ipv6/ipv6_sockglue.c @@ -980,8 +980,8 @@ static int do_ipv6_setsockopt(struct sock *sk, int level, int optname, return -EINVAL; } -int ipv6_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) +int ipv6_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, + unsigned int optlen) { int err; @@ -991,14 +991,12 @@ int ipv6_setsockopt(struct sock *sk, int level, int optname, if (level != SOL_IPV6) return -ENOPROTOOPT; - err = do_ipv6_setsockopt(sk, level, optname, USER_SOCKPTR(optval), - optlen); + err = do_ipv6_setsockopt(sk, level, optname, optval, optlen); #ifdef CONFIG_NETFILTER /* we need to exclude all possible ENOPROTOOPTs except default case */ if (err == -ENOPROTOOPT && optname != IPV6_IPSEC_POLICY && optname != IPV6_XFRM_POLICY) - err = nf_setsockopt(sk, PF_INET6, optname, USER_SOCKPTR(optval), - optlen); + err = nf_setsockopt(sk, PF_INET6, optname, optval, optlen); #endif return err; } diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index 594e01ad670aa6..874f01cd7aec42 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -972,13 +972,13 @@ static int rawv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len) } static int rawv6_seticmpfilter(struct sock *sk, int level, int optname, - char __user *optval, int optlen) + sockptr_t optval, int optlen) { switch (optname) { case ICMPV6_FILTER: if (optlen > sizeof(struct icmp6_filter)) optlen = sizeof(struct icmp6_filter); - if (copy_from_user(&raw6_sk(sk)->filter, optval, optlen)) + if (copy_from_sockptr(&raw6_sk(sk)->filter, optval, optlen)) return -EFAULT; return 0; default: @@ -1015,12 +1015,12 @@ static int rawv6_geticmpfilter(struct sock *sk, int level, int optname, static int do_rawv6_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct raw6_sock *rp = raw6_sk(sk); int val; - if (get_user(val, (int __user *)optval)) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; switch (optname) { @@ -1062,7 +1062,7 @@ static int do_rawv6_setsockopt(struct sock *sk, int level, int optname, } static int rawv6_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { switch (level) { case SOL_RAW: diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c index 05353b31fa07bc..85238620541c3e 100644 --- a/net/ipv6/udp.c +++ b/net/ipv6/udp.c @@ -1561,12 +1561,12 @@ void udpv6_destroy_sock(struct sock *sk) /* * Socket option code for UDP */ -int udpv6_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) +int udpv6_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, + unsigned int optlen) { if (level == SOL_UDP || level == SOL_UDPLITE) return udp_lib_setsockopt(sk, level, optname, - USER_SOCKPTR(optval), optlen, + optval, optlen, udp_v6_push_pending_frames); return ipv6_setsockopt(sk, level, optname, optval, optlen); } diff --git a/net/ipv6/udp_impl.h b/net/ipv6/udp_impl.h index 30dfb6f1b7622a..b2fcc46c1630e0 100644 --- a/net/ipv6/udp_impl.h +++ b/net/ipv6/udp_impl.h @@ -17,8 +17,8 @@ void udp_v6_rehash(struct sock *sk); int udpv6_getsockopt(struct sock *sk, int level, int optname, char __user *optval, int __user *optlen); -int udpv6_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen); +int udpv6_setsockopt(struct sock *sk, int level, int optname, sockptr_t optval, + unsigned int optlen); int udpv6_sendmsg(struct sock *sk, struct msghdr *msg, size_t len); int udpv6_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int noblock, int flags, int *addr_len); diff --git a/net/iucv/af_iucv.c b/net/iucv/af_iucv.c index ee0add15497d96..6ee9851ac7c680 100644 --- a/net/iucv/af_iucv.c +++ b/net/iucv/af_iucv.c @@ -1494,7 +1494,7 @@ static int iucv_sock_release(struct socket *sock) /* getsockopt and setsockopt */ static int iucv_sock_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct iucv_sock *iucv = iucv_sk(sk); @@ -1507,7 +1507,7 @@ static int iucv_sock_setsockopt(struct socket *sock, int level, int optname, if (optlen < sizeof(int)) return -EINVAL; - if (get_user(val, (int __user *) optval)) + if (copy_from_sockptr(&val, optval, sizeof(int))) return -EFAULT; rc = 0; diff --git a/net/kcm/kcmsock.c b/net/kcm/kcmsock.c index 56fac24a627a54..56dad9565bc93b 100644 --- a/net/kcm/kcmsock.c +++ b/net/kcm/kcmsock.c @@ -1265,7 +1265,7 @@ static void kcm_recv_enable(struct kcm_sock *kcm) } static int kcm_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct kcm_sock *kcm = kcm_sk(sock->sk); int val, valbool; @@ -1277,8 +1277,8 @@ static int kcm_setsockopt(struct socket *sock, int level, int optname, if (optlen < sizeof(int)) return -EINVAL; - if (get_user(val, (int __user *)optval)) - return -EINVAL; + if (copy_from_sockptr(&val, optval, sizeof(int))) + return -EFAULT; valbool = val ? 1 : 0; diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c index c54cb59593ef81..c8842b2317409a 100644 --- a/net/l2tp/l2tp_ppp.c +++ b/net/l2tp/l2tp_ppp.c @@ -1244,7 +1244,7 @@ static int pppol2tp_session_setsockopt(struct sock *sk, * session or the special tunnel type. */ static int pppol2tp_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct l2tp_session *session; @@ -1258,7 +1258,7 @@ static int pppol2tp_setsockopt(struct socket *sock, int level, int optname, if (optlen < sizeof(int)) return -EINVAL; - if (get_user(val, (int __user *)optval)) + if (copy_from_sockptr(&val, optval, sizeof(int))) return -EFAULT; err = -ENOTCONN; diff --git a/net/llc/af_llc.c b/net/llc/af_llc.c index 6140a3e46c26f1..7180979114e494 100644 --- a/net/llc/af_llc.c +++ b/net/llc/af_llc.c @@ -1053,7 +1053,7 @@ static int llc_ui_ioctl(struct socket *sock, unsigned int cmd, * Set various connection specific parameters. */ static int llc_ui_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct llc_sock *llc = llc_sk(sk); @@ -1063,7 +1063,7 @@ static int llc_ui_setsockopt(struct socket *sock, int level, int optname, lock_sock(sk); if (unlikely(level != SOL_LLC || optlen != sizeof(int))) goto out; - rc = get_user(opt, (int __user *)optval); + rc = copy_from_sockptr(&opt, optval, sizeof(opt)); if (rc) goto out; rc = -EINVAL; diff --git a/net/mptcp/protocol.c b/net/mptcp/protocol.c index 27b6f250b87dfd..30a8e697b9db9c 100644 --- a/net/mptcp/protocol.c +++ b/net/mptcp/protocol.c @@ -1627,7 +1627,7 @@ static void mptcp_destroy(struct sock *sk) } static int mptcp_setsockopt_sol_socket(struct mptcp_sock *msk, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = (struct sock *)msk; struct socket *ssock; @@ -1643,8 +1643,8 @@ static int mptcp_setsockopt_sol_socket(struct mptcp_sock *msk, int optname, return -EINVAL; } - ret = sock_setsockopt(ssock, SOL_SOCKET, optname, - USER_SOCKPTR(optval), optlen); + ret = sock_setsockopt(ssock, SOL_SOCKET, optname, optval, + optlen); if (ret == 0) { if (optname == SO_REUSEPORT) sk->sk_reuseport = ssock->sk->sk_reuseport; @@ -1655,12 +1655,12 @@ static int mptcp_setsockopt_sol_socket(struct mptcp_sock *msk, int optname, return ret; } - return sock_setsockopt(sk->sk_socket, SOL_SOCKET, optname, - USER_SOCKPTR(optval), optlen); + return sock_setsockopt(sk->sk_socket, SOL_SOCKET, optname, optval, + optlen); } static int mptcp_setsockopt_v6(struct mptcp_sock *msk, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = (struct sock *)msk; int ret = -EOPNOTSUPP; @@ -1687,7 +1687,7 @@ static int mptcp_setsockopt_v6(struct mptcp_sock *msk, int optname, } static int mptcp_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct mptcp_sock *msk = mptcp_sk(sk); struct sock *ssk; diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 4f2c3b14ddbfa3..1d9750068cd65b 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -1620,7 +1620,7 @@ static void netlink_update_socket_mc(struct netlink_sock *nlk, } static int netlink_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct netlink_sock *nlk = nlk_sk(sk); @@ -1631,7 +1631,7 @@ static int netlink_setsockopt(struct socket *sock, int level, int optname, return -ENOPROTOOPT; if (optlen >= sizeof(int) && - get_user(val, (unsigned int __user *)optval)) + copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; switch (optname) { diff --git a/net/netrom/af_netrom.c b/net/netrom/af_netrom.c index f90ef6934b8f4d..6d16e1ab1a8aba 100644 --- a/net/netrom/af_netrom.c +++ b/net/netrom/af_netrom.c @@ -294,7 +294,7 @@ void nr_destroy_socket(struct sock *sk) */ static int nr_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct nr_sock *nr = nr_sk(sk); @@ -306,7 +306,7 @@ static int nr_setsockopt(struct socket *sock, int level, int optname, if (optlen < sizeof(unsigned int)) return -EINVAL; - if (get_user(opt, (unsigned int __user *)optval)) + if (copy_from_sockptr(&opt, optval, sizeof(unsigned int))) return -EFAULT; switch (optname) { diff --git a/net/nfc/llcp_sock.c b/net/nfc/llcp_sock.c index 6da1e2334bb697..d257ed3b732ae3 100644 --- a/net/nfc/llcp_sock.c +++ b/net/nfc/llcp_sock.c @@ -218,7 +218,7 @@ static int llcp_sock_listen(struct socket *sock, int backlog) } static int nfc_llcp_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct nfc_llcp_sock *llcp_sock = nfc_llcp_sock(sk); @@ -241,7 +241,7 @@ static int nfc_llcp_setsockopt(struct socket *sock, int level, int optname, break; } - if (get_user(opt, (u32 __user *) optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { err = -EFAULT; break; } @@ -263,7 +263,7 @@ static int nfc_llcp_setsockopt(struct socket *sock, int level, int optname, break; } - if (get_user(opt, (u32 __user *) optval)) { + if (copy_from_sockptr(&opt, optval, sizeof(u32))) { err = -EFAULT; break; } diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index d8d4f78f78e451..0b8160d1a6e06d 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -1558,7 +1558,7 @@ static int fanout_set_data_cbpf(struct packet_sock *po, sockptr_t data, return 0; } -static int fanout_set_data_ebpf(struct packet_sock *po, char __user *data, +static int fanout_set_data_ebpf(struct packet_sock *po, sockptr_t data, unsigned int len) { struct bpf_prog *new; @@ -1568,7 +1568,7 @@ static int fanout_set_data_ebpf(struct packet_sock *po, char __user *data, return -EPERM; if (len != sizeof(fd)) return -EINVAL; - if (copy_from_user(&fd, data, len)) + if (copy_from_sockptr(&fd, data, len)) return -EFAULT; new = bpf_prog_get_type(fd, BPF_PROG_TYPE_SOCKET_FILTER); @@ -1579,12 +1579,12 @@ static int fanout_set_data_ebpf(struct packet_sock *po, char __user *data, return 0; } -static int fanout_set_data(struct packet_sock *po, char __user *data, +static int fanout_set_data(struct packet_sock *po, sockptr_t data, unsigned int len) { switch (po->fanout->type) { case PACKET_FANOUT_CBPF: - return fanout_set_data_cbpf(po, USER_SOCKPTR(data), len); + return fanout_set_data_cbpf(po, data, len); case PACKET_FANOUT_EBPF: return fanout_set_data_ebpf(po, data, len); default: @@ -3652,7 +3652,8 @@ static void packet_flush_mclist(struct sock *sk) } static int -packet_setsockopt(struct socket *sock, int level, int optname, char __user *optval, unsigned int optlen) +packet_setsockopt(struct socket *sock, int level, int optname, sockptr_t optval, + unsigned int optlen) { struct sock *sk = sock->sk; struct packet_sock *po = pkt_sk(sk); @@ -3672,7 +3673,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv return -EINVAL; if (len > sizeof(mreq)) len = sizeof(mreq); - if (copy_from_user(&mreq, optval, len)) + if (copy_from_sockptr(&mreq, optval, len)) return -EFAULT; if (len < (mreq.mr_alen + offsetof(struct packet_mreq, mr_address))) return -EINVAL; @@ -3703,7 +3704,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv if (optlen < len) { ret = -EINVAL; } else { - if (copy_from_user(&req_u.req, optval, len)) + if (copy_from_sockptr(&req_u.req, optval, len)) ret = -EFAULT; else ret = packet_set_ring(sk, &req_u, 0, @@ -3718,7 +3719,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv if (optlen != sizeof(val)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; pkt_sk(sk)->copy_thresh = val; @@ -3730,7 +3731,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv if (optlen != sizeof(val)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; switch (val) { case TPACKET_V1: @@ -3756,7 +3757,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv if (optlen != sizeof(val)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; if (val > INT_MAX) return -EINVAL; @@ -3776,7 +3777,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv if (optlen != sizeof(val)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; lock_sock(sk); @@ -3795,7 +3796,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv if (optlen < sizeof(val)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; lock_sock(sk); @@ -3809,7 +3810,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv if (optlen < sizeof(val)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; lock_sock(sk); @@ -3825,7 +3826,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv return -EINVAL; if (optlen < sizeof(val)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; lock_sock(sk); @@ -3844,7 +3845,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv if (optlen != sizeof(val)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; po->tp_tstamp = val; @@ -3856,7 +3857,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv if (optlen != sizeof(val)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; return fanout_add(sk, val & 0xffff, val >> 16); @@ -3874,7 +3875,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv if (optlen != sizeof(val)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; if (val < 0 || val > 1) return -EINVAL; @@ -3888,7 +3889,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv if (optlen != sizeof(val)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; lock_sock(sk); @@ -3907,7 +3908,7 @@ packet_setsockopt(struct socket *sock, int level, int optname, char __user *optv if (optlen != sizeof(val)) return -EINVAL; - if (copy_from_user(&val, optval, sizeof(val))) + if (copy_from_sockptr(&val, optval, sizeof(val))) return -EFAULT; po->xmit = val ? packet_direct_xmit : dev_queue_xmit; diff --git a/net/phonet/pep.c b/net/phonet/pep.c index 4577e43cb77782..e47d09aca4af46 100644 --- a/net/phonet/pep.c +++ b/net/phonet/pep.c @@ -975,7 +975,7 @@ static int pep_init(struct sock *sk) } static int pep_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct pep_sock *pn = pep_sk(sk); int val = 0, err = 0; @@ -983,7 +983,7 @@ static int pep_setsockopt(struct sock *sk, int level, int optname, if (level != SOL_PNPIPE) return -ENOPROTOOPT; if (optlen >= sizeof(int)) { - if (get_user(val, (int __user *) optval)) + if (copy_from_sockptr(&val, optval, sizeof(int))) return -EFAULT; } diff --git a/net/rds/af_rds.c b/net/rds/af_rds.c index 1a5bf3fa4578b8..b239120dd9ca69 100644 --- a/net/rds/af_rds.c +++ b/net/rds/af_rds.c @@ -290,8 +290,7 @@ static int rds_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg) return 0; } -static int rds_cancel_sent_to(struct rds_sock *rs, char __user *optval, - int len) +static int rds_cancel_sent_to(struct rds_sock *rs, sockptr_t optval, int len) { struct sockaddr_in6 sin6; struct sockaddr_in sin; @@ -308,14 +307,15 @@ static int rds_cancel_sent_to(struct rds_sock *rs, char __user *optval, goto out; } else if (len < sizeof(struct sockaddr_in6)) { /* Assume IPv4 */ - if (copy_from_user(&sin, optval, sizeof(struct sockaddr_in))) { + if (copy_from_sockptr(&sin, optval, + sizeof(struct sockaddr_in))) { ret = -EFAULT; goto out; } ipv6_addr_set_v4mapped(sin.sin_addr.s_addr, &sin6.sin6_addr); sin6.sin6_port = sin.sin_port; } else { - if (copy_from_user(&sin6, optval, + if (copy_from_sockptr(&sin6, optval, sizeof(struct sockaddr_in6))) { ret = -EFAULT; goto out; @@ -327,21 +327,20 @@ static int rds_cancel_sent_to(struct rds_sock *rs, char __user *optval, return ret; } -static int rds_set_bool_option(unsigned char *optvar, char __user *optval, +static int rds_set_bool_option(unsigned char *optvar, sockptr_t optval, int optlen) { int value; if (optlen < sizeof(int)) return -EINVAL; - if (get_user(value, (int __user *) optval)) + if (copy_from_sockptr(&value, optval, sizeof(int))) return -EFAULT; *optvar = !!value; return 0; } -static int rds_cong_monitor(struct rds_sock *rs, char __user *optval, - int optlen) +static int rds_cong_monitor(struct rds_sock *rs, sockptr_t optval, int optlen) { int ret; @@ -358,8 +357,7 @@ static int rds_cong_monitor(struct rds_sock *rs, char __user *optval, return ret; } -static int rds_set_transport(struct rds_sock *rs, char __user *optval, - int optlen) +static int rds_set_transport(struct rds_sock *rs, sockptr_t optval, int optlen) { int t_type; @@ -369,7 +367,7 @@ static int rds_set_transport(struct rds_sock *rs, char __user *optval, if (optlen != sizeof(int)) return -EINVAL; - if (copy_from_user(&t_type, (int __user *)optval, sizeof(t_type))) + if (copy_from_sockptr(&t_type, optval, sizeof(t_type))) return -EFAULT; if (t_type < 0 || t_type >= RDS_TRANS_COUNT) @@ -380,7 +378,7 @@ static int rds_set_transport(struct rds_sock *rs, char __user *optval, return rs->rs_transport ? 0 : -ENOPROTOOPT; } -static int rds_enable_recvtstamp(struct sock *sk, char __user *optval, +static int rds_enable_recvtstamp(struct sock *sk, sockptr_t optval, int optlen, int optname) { int val, valbool; @@ -388,7 +386,7 @@ static int rds_enable_recvtstamp(struct sock *sk, char __user *optval, if (optlen != sizeof(int)) return -EFAULT; - if (get_user(val, (int __user *)optval)) + if (copy_from_sockptr(&val, optval, sizeof(int))) return -EFAULT; valbool = val ? 1 : 0; @@ -404,7 +402,7 @@ static int rds_enable_recvtstamp(struct sock *sk, char __user *optval, return 0; } -static int rds_recv_track_latency(struct rds_sock *rs, char __user *optval, +static int rds_recv_track_latency(struct rds_sock *rs, sockptr_t optval, int optlen) { struct rds_rx_trace_so trace; @@ -413,7 +411,7 @@ static int rds_recv_track_latency(struct rds_sock *rs, char __user *optval, if (optlen != sizeof(struct rds_rx_trace_so)) return -EFAULT; - if (copy_from_user(&trace, optval, sizeof(trace))) + if (copy_from_sockptr(&trace, optval, sizeof(trace))) return -EFAULT; if (trace.rx_traces > RDS_MSG_RX_DGRAM_TRACE_MAX) @@ -432,7 +430,7 @@ static int rds_recv_track_latency(struct rds_sock *rs, char __user *optval, } static int rds_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct rds_sock *rs = rds_sk_to_rs(sock->sk); int ret; diff --git a/net/rds/rdma.c b/net/rds/rdma.c index a7ae11846cd7f5..ccdd304eae0a0a 100644 --- a/net/rds/rdma.c +++ b/net/rds/rdma.c @@ -353,21 +353,20 @@ static int __rds_rdma_map(struct rds_sock *rs, struct rds_get_mr_args *args, return ret; } -int rds_get_mr(struct rds_sock *rs, char __user *optval, int optlen) +int rds_get_mr(struct rds_sock *rs, sockptr_t optval, int optlen) { struct rds_get_mr_args args; if (optlen != sizeof(struct rds_get_mr_args)) return -EINVAL; - if (copy_from_user(&args, (struct rds_get_mr_args __user *)optval, - sizeof(struct rds_get_mr_args))) + if (copy_from_sockptr(&args, optval, sizeof(struct rds_get_mr_args))) return -EFAULT; return __rds_rdma_map(rs, &args, NULL, NULL, NULL); } -int rds_get_mr_for_dest(struct rds_sock *rs, char __user *optval, int optlen) +int rds_get_mr_for_dest(struct rds_sock *rs, sockptr_t optval, int optlen) { struct rds_get_mr_for_dest_args args; struct rds_get_mr_args new_args; @@ -375,7 +374,7 @@ int rds_get_mr_for_dest(struct rds_sock *rs, char __user *optval, int optlen) if (optlen != sizeof(struct rds_get_mr_for_dest_args)) return -EINVAL; - if (copy_from_user(&args, (struct rds_get_mr_for_dest_args __user *)optval, + if (copy_from_sockptr(&args, optval, sizeof(struct rds_get_mr_for_dest_args))) return -EFAULT; @@ -394,7 +393,7 @@ int rds_get_mr_for_dest(struct rds_sock *rs, char __user *optval, int optlen) /* * Free the MR indicated by the given R_Key */ -int rds_free_mr(struct rds_sock *rs, char __user *optval, int optlen) +int rds_free_mr(struct rds_sock *rs, sockptr_t optval, int optlen) { struct rds_free_mr_args args; struct rds_mr *mr; @@ -403,8 +402,7 @@ int rds_free_mr(struct rds_sock *rs, char __user *optval, int optlen) if (optlen != sizeof(struct rds_free_mr_args)) return -EINVAL; - if (copy_from_user(&args, (struct rds_free_mr_args __user *)optval, - sizeof(struct rds_free_mr_args))) + if (copy_from_sockptr(&args, optval, sizeof(struct rds_free_mr_args))) return -EFAULT; /* Special case - a null cookie means flush all unused MRs */ diff --git a/net/rds/rds.h b/net/rds/rds.h index 106e862996b94d..d35d1fc3980766 100644 --- a/net/rds/rds.h +++ b/net/rds/rds.h @@ -924,9 +924,9 @@ int rds_send_pong(struct rds_conn_path *cp, __be16 dport); /* rdma.c */ void rds_rdma_unuse(struct rds_sock *rs, u32 r_key, int force); -int rds_get_mr(struct rds_sock *rs, char __user *optval, int optlen); -int rds_get_mr_for_dest(struct rds_sock *rs, char __user *optval, int optlen); -int rds_free_mr(struct rds_sock *rs, char __user *optval, int optlen); +int rds_get_mr(struct rds_sock *rs, sockptr_t optval, int optlen); +int rds_get_mr_for_dest(struct rds_sock *rs, sockptr_t optval, int optlen); +int rds_free_mr(struct rds_sock *rs, sockptr_t optval, int optlen); void rds_rdma_drop_keys(struct rds_sock *rs); int rds_rdma_extra_size(struct rds_rdma_args *args, struct rds_iov_vector *iov); diff --git a/net/rose/af_rose.c b/net/rose/af_rose.c index ce85656ac9c159..cf7d974e0f619a 100644 --- a/net/rose/af_rose.c +++ b/net/rose/af_rose.c @@ -365,7 +365,7 @@ void rose_destroy_socket(struct sock *sk) */ static int rose_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct rose_sock *rose = rose_sk(sk); @@ -377,7 +377,7 @@ static int rose_setsockopt(struct socket *sock, int level, int optname, if (optlen < sizeof(int)) return -EINVAL; - if (get_user(opt, (int __user *)optval)) + if (copy_from_sockptr(&opt, optval, sizeof(int))) return -EFAULT; switch (optname) { diff --git a/net/rxrpc/af_rxrpc.c b/net/rxrpc/af_rxrpc.c index cd7d0d204c7498..e6725a6de015fb 100644 --- a/net/rxrpc/af_rxrpc.c +++ b/net/rxrpc/af_rxrpc.c @@ -588,7 +588,7 @@ EXPORT_SYMBOL(rxrpc_sock_set_min_security_level); * set RxRPC socket options */ static int rxrpc_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct rxrpc_sock *rx = rxrpc_sk(sock->sk); unsigned int min_sec_level; @@ -639,8 +639,8 @@ static int rxrpc_setsockopt(struct socket *sock, int level, int optname, ret = -EISCONN; if (rx->sk.sk_state != RXRPC_UNBOUND) goto error; - ret = get_user(min_sec_level, - (unsigned int __user *) optval); + ret = copy_from_sockptr(&min_sec_level, optval, + sizeof(unsigned int)); if (ret < 0) goto error; ret = -EINVAL; @@ -658,7 +658,7 @@ static int rxrpc_setsockopt(struct socket *sock, int level, int optname, if (rx->sk.sk_state != RXRPC_SERVER_BOUND2) goto error; ret = -EFAULT; - if (copy_from_user(service_upgrade, optval, + if (copy_from_sockptr(service_upgrade, optval, sizeof(service_upgrade)) != 0) goto error; ret = -EINVAL; diff --git a/net/rxrpc/ar-internal.h b/net/rxrpc/ar-internal.h index 9a2139ebd67d73..6d29a3603a3e6e 100644 --- a/net/rxrpc/ar-internal.h +++ b/net/rxrpc/ar-internal.h @@ -909,8 +909,8 @@ extern const struct rxrpc_security rxrpc_no_security; extern struct key_type key_type_rxrpc; extern struct key_type key_type_rxrpc_s; -int rxrpc_request_key(struct rxrpc_sock *, char __user *, int); -int rxrpc_server_keyring(struct rxrpc_sock *, char __user *, int); +int rxrpc_request_key(struct rxrpc_sock *, sockptr_t , int); +int rxrpc_server_keyring(struct rxrpc_sock *, sockptr_t, int); int rxrpc_get_server_data_key(struct rxrpc_connection *, const void *, time64_t, u32); diff --git a/net/rxrpc/key.c b/net/rxrpc/key.c index 0c98313dd7a8cb..94c3df392651b9 100644 --- a/net/rxrpc/key.c +++ b/net/rxrpc/key.c @@ -896,7 +896,7 @@ static void rxrpc_describe(const struct key *key, struct seq_file *m) /* * grab the security key for a socket */ -int rxrpc_request_key(struct rxrpc_sock *rx, char __user *optval, int optlen) +int rxrpc_request_key(struct rxrpc_sock *rx, sockptr_t optval, int optlen) { struct key *key; char *description; @@ -906,7 +906,7 @@ int rxrpc_request_key(struct rxrpc_sock *rx, char __user *optval, int optlen) if (optlen <= 0 || optlen > PAGE_SIZE - 1) return -EINVAL; - description = memdup_user_nul(optval, optlen); + description = memdup_sockptr_nul(optval, optlen); if (IS_ERR(description)) return PTR_ERR(description); @@ -926,8 +926,7 @@ int rxrpc_request_key(struct rxrpc_sock *rx, char __user *optval, int optlen) /* * grab the security keyring for a server socket */ -int rxrpc_server_keyring(struct rxrpc_sock *rx, char __user *optval, - int optlen) +int rxrpc_server_keyring(struct rxrpc_sock *rx, sockptr_t optval, int optlen) { struct key *key; char *description; @@ -937,7 +936,7 @@ int rxrpc_server_keyring(struct rxrpc_sock *rx, char __user *optval, if (optlen <= 0 || optlen > PAGE_SIZE - 1) return -EINVAL; - description = memdup_user_nul(optval, optlen); + description = memdup_sockptr_nul(optval, optlen); if (IS_ERR(description)) return PTR_ERR(description); diff --git a/net/sctp/socket.c b/net/sctp/socket.c index 9a767f35971865..144808dfea9ee8 100644 --- a/net/sctp/socket.c +++ b/net/sctp/socket.c @@ -4429,7 +4429,7 @@ static int sctp_setsockopt_pf_expose(struct sock *sk, * optlen - the size of the buffer. */ static int sctp_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { void *kopt = NULL; int retval = 0; @@ -4449,7 +4449,7 @@ static int sctp_setsockopt(struct sock *sk, int level, int optname, } if (optlen > 0) { - kopt = memdup_user(optval, optlen); + kopt = memdup_sockptr(optval, optlen); if (IS_ERR(kopt)) return PTR_ERR(kopt); } diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c index 9711c9e0e515bf..4ac1d4de667691 100644 --- a/net/smc/af_smc.c +++ b/net/smc/af_smc.c @@ -1731,7 +1731,7 @@ static int smc_shutdown(struct socket *sock, int how) } static int smc_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct smc_sock *smc; @@ -1754,7 +1754,7 @@ static int smc_setsockopt(struct socket *sock, int level, int optname, if (optlen < sizeof(int)) return -EINVAL; - if (get_user(val, (int __user *)optval)) + if (copy_from_sockptr(&val, optval, sizeof(int))) return -EFAULT; lock_sock(sk); diff --git a/net/socket.c b/net/socket.c index c97f83d879ae75..e44b8ac47f6f46 100644 --- a/net/socket.c +++ b/net/socket.c @@ -2094,10 +2094,10 @@ static bool sock_use_custom_sol_socket(const struct socket *sock) * Set a socket option. Because we don't know the option lengths we have * to pass the user mode parameter for the protocols to sort out. */ -int __sys_setsockopt(int fd, int level, int optname, char __user *optval, +int __sys_setsockopt(int fd, int level, int optname, char __user *user_optval, int optlen) { - mm_segment_t oldfs = get_fs(); + sockptr_t optval = USER_SOCKPTR(user_optval); char *kernel_optval = NULL; int err, fput_needed; struct socket *sock; @@ -2115,7 +2115,7 @@ int __sys_setsockopt(int fd, int level, int optname, char __user *optval, if (!in_compat_syscall()) err = BPF_CGROUP_RUN_PROG_SETSOCKOPT(sock->sk, &level, &optname, - optval, &optlen, + user_optval, &optlen, &kernel_optval); if (err < 0) goto out_put; @@ -2124,25 +2124,16 @@ int __sys_setsockopt(int fd, int level, int optname, char __user *optval, goto out_put; } - if (kernel_optval) { - set_fs(KERNEL_DS); - optval = (char __user __force *)kernel_optval; - } - + if (kernel_optval) + optval = KERNEL_SOCKPTR(kernel_optval); if (level == SOL_SOCKET && !sock_use_custom_sol_socket(sock)) - err = sock_setsockopt(sock, level, optname, - USER_SOCKPTR(optval), optlen); + err = sock_setsockopt(sock, level, optname, optval, optlen); else if (unlikely(!sock->ops->setsockopt)) err = -EOPNOTSUPP; else err = sock->ops->setsockopt(sock, level, optname, optval, optlen); - - if (kernel_optval) { - set_fs(oldfs); - kfree(kernel_optval); - } - + kfree(kernel_optval); out_put: fput_light(sock->file, fput_needed); return err; diff --git a/net/tipc/socket.c b/net/tipc/socket.c index fc388cef64715c..07419f36116a84 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -3103,7 +3103,7 @@ static int tipc_sk_leave(struct tipc_sock *tsk) * Returns 0 on success, errno otherwise */ static int tipc_setsockopt(struct socket *sock, int lvl, int opt, - char __user *ov, unsigned int ol) + sockptr_t ov, unsigned int ol) { struct sock *sk = sock->sk; struct tipc_sock *tsk = tipc_sk(sk); @@ -3124,17 +3124,17 @@ static int tipc_setsockopt(struct socket *sock, int lvl, int opt, case TIPC_NODELAY: if (ol < sizeof(value)) return -EINVAL; - if (get_user(value, (u32 __user *)ov)) + if (copy_from_sockptr(&value, ov, sizeof(u32))) return -EFAULT; break; case TIPC_GROUP_JOIN: if (ol < sizeof(mreq)) return -EINVAL; - if (copy_from_user(&mreq, ov, sizeof(mreq))) + if (copy_from_sockptr(&mreq, ov, sizeof(mreq))) return -EFAULT; break; default: - if (ov || ol) + if (!sockptr_is_null(ov) || ol) return -EINVAL; } diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c index ec10041c6b7d41..d77f7d821130db 100644 --- a/net/tls/tls_main.c +++ b/net/tls/tls_main.c @@ -450,7 +450,7 @@ static int tls_getsockopt(struct sock *sk, int level, int optname, return do_tls_getsockopt(sk, optname, optval, optlen); } -static int do_tls_setsockopt_conf(struct sock *sk, char __user *optval, +static int do_tls_setsockopt_conf(struct sock *sk, sockptr_t optval, unsigned int optlen, int tx) { struct tls_crypto_info *crypto_info; @@ -460,7 +460,7 @@ static int do_tls_setsockopt_conf(struct sock *sk, char __user *optval, int rc = 0; int conf; - if (!optval || (optlen < sizeof(*crypto_info))) { + if (sockptr_is_null(optval) || (optlen < sizeof(*crypto_info))) { rc = -EINVAL; goto out; } @@ -479,7 +479,7 @@ static int do_tls_setsockopt_conf(struct sock *sk, char __user *optval, goto out; } - rc = copy_from_user(crypto_info, optval, sizeof(*crypto_info)); + rc = copy_from_sockptr(crypto_info, optval, sizeof(*crypto_info)); if (rc) { rc = -EFAULT; goto err_crypto_info; @@ -522,8 +522,9 @@ static int do_tls_setsockopt_conf(struct sock *sk, char __user *optval, goto err_crypto_info; } - rc = copy_from_user(crypto_info + 1, optval + sizeof(*crypto_info), - optlen - sizeof(*crypto_info)); + sockptr_advance(optval, sizeof(*crypto_info)); + rc = copy_from_sockptr(crypto_info + 1, optval, + optlen - sizeof(*crypto_info)); if (rc) { rc = -EFAULT; goto err_crypto_info; @@ -579,8 +580,8 @@ static int do_tls_setsockopt_conf(struct sock *sk, char __user *optval, return rc; } -static int do_tls_setsockopt(struct sock *sk, int optname, - char __user *optval, unsigned int optlen) +static int do_tls_setsockopt(struct sock *sk, int optname, sockptr_t optval, + unsigned int optlen) { int rc = 0; @@ -600,7 +601,7 @@ static int do_tls_setsockopt(struct sock *sk, int optname, } static int tls_setsockopt(struct sock *sk, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct tls_context *ctx = tls_get_ctx(sk); diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index df204c6761c453..27bbcfad9c1738 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -1517,7 +1517,7 @@ static void vsock_update_buffer_size(struct vsock_sock *vsk, static int vsock_stream_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, + sockptr_t optval, unsigned int optlen) { int err; @@ -1535,7 +1535,7 @@ static int vsock_stream_setsockopt(struct socket *sock, err = -EINVAL; \ goto exit; \ } \ - if (copy_from_user(&_v, optval, sizeof(_v)) != 0) { \ + if (copy_from_sockptr(&_v, optval, sizeof(_v)) != 0) { \ err = -EFAULT; \ goto exit; \ } \ diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c index d5b09bbff3754f..0bbb283f23c96f 100644 --- a/net/x25/af_x25.c +++ b/net/x25/af_x25.c @@ -431,7 +431,7 @@ void x25_destroy_socket_from_timer(struct sock *sk) */ static int x25_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { int opt; struct sock *sk = sock->sk; @@ -445,7 +445,7 @@ static int x25_setsockopt(struct socket *sock, int level, int optname, goto out; rc = -EFAULT; - if (get_user(opt, (int __user *)optval)) + if (copy_from_sockptr(&opt, optval, sizeof(int))) goto out; if (opt) diff --git a/net/xdp/xsk.c b/net/xdp/xsk.c index 26e3bba8c204a7..2e94a7e94671b6 100644 --- a/net/xdp/xsk.c +++ b/net/xdp/xsk.c @@ -702,7 +702,7 @@ struct xdp_umem_reg_v1 { }; static int xsk_setsockopt(struct socket *sock, int level, int optname, - char __user *optval, unsigned int optlen) + sockptr_t optval, unsigned int optlen) { struct sock *sk = sock->sk; struct xdp_sock *xs = xdp_sk(sk); @@ -720,7 +720,7 @@ static int xsk_setsockopt(struct socket *sock, int level, int optname, if (optlen < sizeof(entries)) return -EINVAL; - if (copy_from_user(&entries, optval, sizeof(entries))) + if (copy_from_sockptr(&entries, optval, sizeof(entries))) return -EFAULT; mutex_lock(&xs->mutex); @@ -747,7 +747,7 @@ static int xsk_setsockopt(struct socket *sock, int level, int optname, else if (optlen < sizeof(mr)) mr_size = sizeof(struct xdp_umem_reg_v1); - if (copy_from_user(&mr, optval, mr_size)) + if (copy_from_sockptr(&mr, optval, mr_size)) return -EFAULT; mutex_lock(&xs->mutex); @@ -774,7 +774,7 @@ static int xsk_setsockopt(struct socket *sock, int level, int optname, struct xsk_queue **q; int entries; - if (copy_from_user(&entries, optval, sizeof(entries))) + if (copy_from_sockptr(&entries, optval, sizeof(entries))) return -EFAULT; mutex_lock(&xs->mutex);

[24/24] net: pass a sockptr_t into ->setsockopt

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