diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/can/raw.c | 3 | ||||
| -rw-r--r-- | net/core/ethtool.c | 5 | ||||
| -rw-r--r-- | net/dccp/probe.c | 2 | ||||
| -rw-r--r-- | net/ipv4/tcp_probe.c | 9 | ||||
| -rw-r--r-- | net/ipv6/Kconfig | 2 | ||||
| -rw-r--r-- | net/ipv6/raw.c | 18 | ||||
| -rw-r--r-- | net/key/af_key.c | 5 | ||||
| -rw-r--r-- | net/tipc/socket.c | 4 |
8 files changed, 35 insertions, 13 deletions
diff --git a/net/can/raw.c b/net/can/raw.c index ead50c7c0d40..201cbfc6b9ec 100644 --- a/net/can/raw.c +++ b/net/can/raw.c @@ -573,7 +573,8 @@ static int raw_getsockopt(struct socket *sock, int level, int optname, int fsize = ro->count * sizeof(struct can_filter); if (len > fsize) len = fsize; - err = copy_to_user(optval, ro->filter, len); + if (copy_to_user(optval, ro->filter, len)) + err = -EFAULT; } else len = 0; release_sock(sk); diff --git a/net/core/ethtool.c b/net/core/ethtool.c index a29b43d0b450..0133b5ebd545 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -323,6 +323,11 @@ static int ethtool_get_eeprom(struct net_device *dev, void __user *useraddr) bytes_remaining -= eeprom.len; } + eeprom.len = userbuf - (useraddr + sizeof(eeprom)); + eeprom.offset -= eeprom.len; + if (copy_to_user(useraddr, &eeprom, sizeof(eeprom))) + ret = -EFAULT; + kfree(data); return ret; } diff --git a/net/dccp/probe.c b/net/dccp/probe.c index 6e1df62bd7c9..0bcdc9250279 100644 --- a/net/dccp/probe.c +++ b/net/dccp/probe.c @@ -140,7 +140,7 @@ static ssize_t dccpprobe_read(struct file *file, char __user *buf, goto out_free; cnt = kfifo_get(dccpw.fifo, tbuf, len); - error = copy_to_user(buf, tbuf, cnt); + error = copy_to_user(buf, tbuf, cnt) ? -EFAULT : 0; out_free: vfree(tbuf); diff --git a/net/ipv4/tcp_probe.c b/net/ipv4/tcp_probe.c index 1c509592574a..5ff0ce6e9d39 100644 --- a/net/ipv4/tcp_probe.c +++ b/net/ipv4/tcp_probe.c @@ -190,19 +190,18 @@ static ssize_t tcpprobe_read(struct file *file, char __user *buf, width = tcpprobe_sprint(tbuf, sizeof(tbuf)); - if (width < len) + if (cnt + width < len) tcp_probe.tail = (tcp_probe.tail + 1) % bufsize; spin_unlock_bh(&tcp_probe.lock); /* if record greater than space available return partial buffer (so far) */ - if (width >= len) + if (cnt + width >= len) break; - error = copy_to_user(buf + cnt, tbuf, width); - if (error) - break; + if (copy_to_user(buf + cnt, tbuf, width)) + return -EFAULT; cnt += width; } diff --git a/net/ipv6/Kconfig b/net/ipv6/Kconfig index 42814a2ec9d7..b2c9becc02e8 100644 --- a/net/ipv6/Kconfig +++ b/net/ipv6/Kconfig @@ -167,7 +167,7 @@ config IPV6_SIT Tunneling means encapsulating data of one protocol type within another protocol and sending it over a channel that understands the encapsulating protocol. This driver implements encapsulation of IPv6 - into IPv4 packets. This is useful if you want to connect two IPv6 + into IPv4 packets. This is useful if you want to connect to IPv6 networks over an IPv4-only path. Saying M here will produce a module called sit.ko. If unsure, say Y. diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c index 6193b124cbc7..396f0ea11090 100644 --- a/net/ipv6/raw.c +++ b/net/ipv6/raw.c @@ -971,6 +971,19 @@ static int do_rawv6_setsockopt(struct sock *sk, int level, int optname, switch (optname) { case IPV6_CHECKSUM: + if (inet_sk(sk)->num == IPPROTO_ICMPV6 && + level == IPPROTO_IPV6) { + /* + * RFC3542 tells that IPV6_CHECKSUM socket + * option in the IPPROTO_IPV6 level is not + * allowed on ICMPv6 sockets. + * If you want to set it, use IPPROTO_RAW + * level IPV6_CHECKSUM socket option + * (Linux extension). + */ + return -EINVAL; + } + /* You may get strange result with a positive odd offset; RFC2292bis agrees with me. */ if (val > 0 && (val&1)) @@ -1046,6 +1059,11 @@ static int do_rawv6_getsockopt(struct sock *sk, int level, int optname, switch (optname) { case IPV6_CHECKSUM: + /* + * We allow getsockopt() for IPPROTO_IPV6-level + * IPV6_CHECKSUM socket option on ICMPv6 sockets + * since RFC3542 is silent about it. + */ if (rp->checksum == 0) val = -1; else diff --git a/net/key/af_key.c b/net/key/af_key.c index 81a8e5297ad1..2403a31fe0f6 100644 --- a/net/key/af_key.c +++ b/net/key/af_key.c @@ -2356,7 +2356,7 @@ static int pfkey_spddelete(struct sock *sk, struct sk_buff *skb, struct sadb_msg struct xfrm_selector sel; struct km_event c; struct sadb_x_sec_ctx *sec_ctx; - struct xfrm_sec_ctx *pol_ctx; + struct xfrm_sec_ctx *pol_ctx = NULL; if (!present_and_same_family(ext_hdrs[SADB_EXT_ADDRESS_SRC-1], ext_hdrs[SADB_EXT_ADDRESS_DST-1]) || @@ -2396,8 +2396,7 @@ static int pfkey_spddelete(struct sock *sk, struct sk_buff *skb, struct sadb_msg kfree(uctx); if (err) return err; - } else - pol_ctx = NULL; + } xp = xfrm_policy_bysel_ctx(XFRM_POLICY_TYPE_MAIN, pol->sadb_x_policy_dir - 1, &sel, pol_ctx, diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 05853159536a..230f9ca2ad6b 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -1756,8 +1756,8 @@ static int getsockopt(struct socket *sock, else if (len < sizeof(value)) { res = -EINVAL; } - else if ((res = copy_to_user(ov, &value, sizeof(value)))) { - /* couldn't return value */ + else if (copy_to_user(ov, &value, sizeof(value))) { + res = -EFAULT; } else { res = put_user(sizeof(value), ol); |