diff --git a/include/linux/filter.h b/include/linux/filter.h index 1c6b6d982bf498ba164ce2b49c0ed599e787d3b0..d07a6e973a7d6f7770a93f12983e24b50e227a7b 100644 --- a/include/linux/filter.h +++ b/include/linux/filter.h @@ -20,6 +20,7 @@ #include #include #include +#include #include #include @@ -1276,7 +1277,7 @@ struct bpf_sockopt_kern { s32 retval; }; -int copy_bpf_fprog_from_user(struct sock_fprog *dst, void __user *src, int len); +int copy_bpf_fprog_from_user(struct sock_fprog *dst, sockptr_t src, int len); struct bpf_sk_lookup_kern { u16 family; diff --git a/net/core/filter.c b/net/core/filter.c index 3fa16b8c0d616afb6f8d06fbd1b81d74970cc032..29e3455122f7726f440a272deb521080a9da84a2 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -77,14 +77,14 @@ #include #include -int copy_bpf_fprog_from_user(struct sock_fprog *dst, void __user *src, int len) +int copy_bpf_fprog_from_user(struct sock_fprog *dst, sockptr_t src, int len) { if (in_compat_syscall()) { struct compat_sock_fprog f32; if (len != sizeof(f32)) return -EINVAL; - if (copy_from_user(&f32, src, sizeof(f32))) + if (copy_from_sockptr(&f32, src, sizeof(f32))) return -EFAULT; memset(dst, 0, sizeof(*dst)); dst->len = f32.len; @@ -92,7 +92,7 @@ int copy_bpf_fprog_from_user(struct sock_fprog *dst, void __user *src, int len) } else { if (len != sizeof(*dst)) return -EINVAL; - if (copy_from_user(dst, src, sizeof(*dst))) + if (copy_from_sockptr(dst, src, sizeof(*dst))) return -EFAULT; } diff --git a/net/core/sock.c b/net/core/sock.c index 6da54eac2b34563d85b12ff43afa2a5fc9a3ae7d..71fc7e4ddd06487a160625d4cff0fbe24f293555 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -1063,7 +1063,8 @@ int sock_setsockopt(struct socket *sock, int level, int optname, case SO_ATTACH_FILTER: { struct sock_fprog fprog; - ret = copy_bpf_fprog_from_user(&fprog, optval, optlen); + ret = copy_bpf_fprog_from_user(&fprog, USER_SOCKPTR(optval), + optlen); if (!ret) ret = sk_attach_filter(&fprog, sk); break; @@ -1084,7 +1085,8 @@ int sock_setsockopt(struct socket *sock, int level, int optname, case SO_ATTACH_REUSEPORT_CBPF: { struct sock_fprog fprog; - ret = copy_bpf_fprog_from_user(&fprog, optval, optlen); + ret = copy_bpf_fprog_from_user(&fprog, USER_SOCKPTR(optval), + optlen); if (!ret) ret = sk_reuseport_attach_filter(&fprog, sk); break; diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index c240fb5de3f01452ca504f926a1314ad3aa4dac5..d8d4f78f78e45167d18c929a561c38f62a96ae8d 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -1536,7 +1536,7 @@ static void __fanout_set_data_bpf(struct packet_fanout *f, struct bpf_prog *new) } } -static int fanout_set_data_cbpf(struct packet_sock *po, char __user *data, +static int fanout_set_data_cbpf(struct packet_sock *po, sockptr_t data, unsigned int len) { struct bpf_prog *new; @@ -1584,7 +1584,7 @@ static int fanout_set_data(struct packet_sock *po, char __user *data, { switch (po->fanout->type) { case PACKET_FANOUT_CBPF: - return fanout_set_data_cbpf(po, data, len); + return fanout_set_data_cbpf(po, USER_SOCKPTR(data), len); case PACKET_FANOUT_EBPF: return fanout_set_data_ebpf(po, data, len); default: