[PATCH 05/24] net: switch sock_setbindtodevice to sockptr_t
Christoph Hellwig <[email protected]>
| Newsgroups | org.kernel.vger.dccp,dev.linux.lists.bridge,dev.linux.lists.mptcp,org.kernel.vger.bpf,org.kernel.vger.linux-bluetooth,org.kernel.vger.linux-can,org.kernel.vger.linux-crypto,org.kernel.vger.linux-hams,org.kernel.vger.linux-kernel,org.kernel.vger.linux-s390,org.kernel.vger.linux-sctp,org.kernel.vger.linux-wpan,org.kernel.vger.linux-x25,org.kernel.vger.lvs-devel,org.kernel.vger.netdev,org.kernel.vger.netfilter-devel |
|---|---|
| Message-ID | <[email protected]> |
Pass a sockptr_t to prepare for set_fs-less handling of the kernel pointer from bpf-cgroup. Signed-off-by: Christoph Hellwig <[email protected]> --- net/core/sock.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/net/core/sock.c b/net/core/sock.c index 91224709869389..bd20fc5cce0850 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -608,8 +608,7 @@ int sock_bindtoindex(struct sock *sk, int ifindex, bool lock_sk) } EXPORT_SYMBOL(sock_bindtoindex); -static int sock_setbindtodevice(struct sock *sk, char __user *optval, - int optlen) +static int sock_setbindtodevice(struct sock *sk, sockptr_t optval, int optlen) { int ret = -ENOPROTOOPT; #ifdef CONFIG_NETDEVICES @@ -631,7 +630,7 @@ static int sock_setbindtodevice(struct sock *sk, char __user *optval, memset(devname, 0, sizeof(devname)); ret = -EFAULT; - if (copy_from_user(devname, optval, optlen)) + if (copy_from_sockptr(devname, optval, optlen)) goto out; index = 0; @@ -839,7 +838,7 @@ int sock_setsockopt(struct socket *sock, int level, int optname, */ if (optname = SO_BINDTODEVICE) - return sock_setbindtodevice(sk, optval, optlen); + return sock_setbindtodevice(sk, USER_SOCKPTR(optval), optlen); if (optlen < sizeof(int)) return -EINVAL; -- 2.27.0