Michal Kubeček acf8dd0a9d udp: only allow UFO for packets from SOCK_DGRAM sockets ... If an over-MTU UDP datagram is sent through a SOCK_RAW socket to a UFO-capable device, ip_ufo_append_data() sets skb->ip_summed to CHECKSUM_PARTIAL unconditionally as all GSO code assumes transport layer checksum is to be computed on segmentation. However, in this case, skb->csum_start and skb->csum_offset are never set as raw socket transmit path bypasses udp_send_skb() where they are usually set. As a result, driver may access invalid memory when trying to calculate the checksum and store the result (as observed in virtio_net driver). Moreover, the very idea of modifying the userspace provided UDP header is IMHO against raw socket semantics (I wasn't able to find a document clearly stating this or the opposite, though). And while allowing CHECKSUM_NONE in the UFO case would be more efficient, it would be a bit too intrusive change just to handle a corner case like this. Therefore disallowing UFO for packets from SOCK_DGRAM seems to be the best option. Signed-off-by: Michal Kubecek <mkubecek@suse.cz> Signed-off-by: David S. Miller <davem@davemloft.net>		2015-03-02 22:19:29 -05:00
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netfilter	netfilter: nf_tables: fix port natting in little endian archs	2014-12-23 15:34:28 +01:00
Kconfig	…
Makefile	…
af_inet.c	net: rfs: add hash collision detection	2015-02-08 16:53:57 -08:00
ah4.c	…
arp.c	…
cipso_ipv4.c	cipso: don't use IPCB() to locate the CIPSO IP option	2015-02-11 14:46:37 -05:00
datagram.c	…
devinet.c	net: spelling fixes	2015-02-14 20:36:08 -08:00
esp4.c	…
fib_frontend.c	fib_trie: Push rcu_read_lock/unlock to callers	2014-12-31 18:25:54 -05:00
fib_lookup.h	fib_trie: Move fib_find_alias to file where it is used	2015-01-25 14:47:16 -08:00
fib_rules.c	fib_trie: Push rcu_read_lock/unlock to callers	2014-12-31 18:25:54 -05:00
fib_semantics.c	fib_trie: Move fib_find_alias to file where it is used	2015-01-25 14:47:16 -08:00
fib_trie.c	fib_trie: Various clean-ups for handling slen	2015-01-25 14:47:16 -08:00
fou.c	gue: Use checksum partial with remote checksum offload	2015-02-11 15:12:13 -08:00
geneve.c	openvswitch: Add support for checksums on UDP tunnels.	2015-01-28 23:04:15 -08:00
gre_demux.c	…
gre_offload.c	…
icmp.c	ipv4: icmp: use percpu allocation	2015-01-31 17:48:18 -08:00
igmp.c	…
inet_connection_sock.c	…
inet_diag.c	netlink: make nlmsg_end() and genlmsg_end() void	2015-01-18 01:03:45 -05:00
inet_fragment.c	…
inet_hashtables.c	…
inet_lro.c	…
inet_timewait_sock.c	…
inetpeer.c	…
ip_forward.c	ipv4: try to cache dst_entries which would cause a redirect	2015-01-26 17:28:27 -08:00
ip_fragment.c	ipv4: ip_check_defrag should correctly check return value of skb_copy_bits	2015-02-20 15:22:38 -05:00
ip_gre.c	gre/ipip: use be16 variants of netlink functions	2015-02-08 16:28:06 -08:00
ip_input.c	…
ip_options.c	…
ip_output.c	udp: only allow UFO for packets from SOCK_DGRAM sockets	2015-03-02 22:19:29 -05:00
ip_sockglue.c	net-timestamp: no-payload option	2015-02-02 18:46:51 -08:00
ip_tunnel.c	tunnels: advertise link netns via netlink	2015-01-19 14:32:03 -05:00
ip_tunnel_core.c	…
ip_vti.c	tunnels: advertise link netns via netlink	2015-01-19 14:32:03 -05:00
ipcomp.c	…
ipconfig.c	net: ipv4: handle DSA enabled master network devices	2015-01-19 15:45:10 -05:00
ipip.c	gre/ipip: use be16 variants of netlink functions	2015-02-08 16:28:06 -08:00
ipmr.c	netlink: make nlmsg_end() and genlmsg_end() void	2015-01-18 01:03:45 -05:00
netfilter.c	…
ping.c	net: switch memcpy_fromiovec()/memcpy_fromiovecend() users to copy_from_iter()	2015-02-04 01:34:15 -05:00
proc.c	tcp: helpers to mitigate ACK loops by rate-limiting out-of-window dupacks	2015-02-08 01:03:12 -08:00
protocol.c	…
raw.c	net: switch memcpy_fromiovec()/memcpy_fromiovecend() users to copy_from_iter()	2015-02-04 01:34:15 -05:00
route.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-02-05 14:33:28 -08:00
syncookies.c	…
sysctl_net_ipv4.c	ipv4: Namespecify TCP PMTU mechanism	2015-02-09 18:45:00 -08:00
tcp.c	ip: convert tcp_sendmsg() to iov_iter primitives	2015-02-04 01:34:14 -05:00
tcp_bic.c	tcp: stretch ACK fixes prep	2015-01-28 22:18:37 -08:00
tcp_cong.c	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-02-05 14:33:28 -08:00
tcp_cubic.c	tcp: fix timing issue in CUBIC slope calculation	2015-01-28 22:18:38 -08:00
tcp_dctcp.c	…
tcp_diag.c	…
tcp_fastopen.c	tcp: make sure skb is not shared before using skb_get()	2015-02-13 07:11:40 -08:00
tcp_highspeed.c	…
tcp_htcp.c	…
tcp_hybla.c	…
tcp_illinois.c	…
tcp_input.c	tcp: fix tcp_should_expand_sndbuf() to use tcp_packets_in_flight()	2015-02-22 23:07:11 -05:00
tcp_ipv4.c	ipv4: Namespecify TCP PMTU mechanism	2015-02-09 18:45:00 -08:00
tcp_lp.c	…
tcp_memcontrol.c	memcg: cleanup static keys decrement	2015-02-12 18:54:10 -08:00
tcp_metrics.c	netlink: make nlmsg_end() and genlmsg_end() void	2015-01-18 01:03:45 -05:00
tcp_minisocks.c	tcp: mitigate ACK loops for connections as tcp_timewait_sock	2015-02-08 01:03:13 -08:00
tcp_offload.c	…
tcp_output.c	ipv4: Namespecify TCP PMTU mechanism	2015-02-09 18:45:00 -08:00
tcp_probe.c	…
tcp_scalable.c	tcp: stretch ACK fixes prep	2015-01-28 22:18:37 -08:00
tcp_timer.c	ipv4: Namespecify TCP PMTU mechanism	2015-02-09 18:45:00 -08:00
tcp_vegas.c	…
tcp_vegas.h	…
tcp_veno.c	tcp: stretch ACK fixes prep	2015-01-28 22:18:37 -08:00
tcp_westwood.c	…
tcp_yeah.c	tcp: stretch ACK fixes prep	2015-01-28 22:18:37 -08:00
tunnel4.c	…
udp.c	ip: Add offset parameter to ip_cmsg_recv	2015-01-05 22:44:46 -05:00
udp_diag.c	udp_diag: Fix socket skipping within chain	2015-01-27 00:02:41 -08:00
udp_impl.h	…
udp_offload.c	udp: Set SKB_GSO_UDP_TUNNEL* in UDP GRO path	2015-02-11 15:12:10 -08:00
udp_tunnel.c	udp: Do not require sock in udp_tunnel_xmit_skb	2015-01-24 23:15:40 -08:00
udplite.c	…
xfrm4_input.c	…
xfrm4_mode_beet.c	…
xfrm4_mode_transport.c	…
xfrm4_mode_tunnel.c	…
xfrm4_output.c	…
xfrm4_policy.c	…
xfrm4_protocol.c	…
xfrm4_state.c	…
xfrm4_tunnel.c	…