Willem de Bruijn 4f0c40d944 dccp: limit sk_filter trim to payload ... Dccp verifies packet integrity, including length, at initial rcv in dccp_invalid_packet, later pulls headers in dccp_enqueue_skb. A call to sk_filter in-between can cause __skb_pull to wrap skb->len. skb_copy_datagram_msg interprets this as a negative value, so (correctly) fails with EFAULT. The negative length is reported in ioctl SIOCINQ or possibly in a DCCP_WARN in dccp_close. Introduce an sk_receive_skb variant that caps how small a filter program can trim packets, and call this in dccp with the header length. Excessively trimmed packets are now processed normally and queued for reception as 0B payloads. Fixes: 7c657876b6 ("[DCCP]: Initial implementation") Signed-off-by: Willem de Bruijn <willemb@google.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: David S. Miller <davem@davemloft.net>		2016-07-13 11:53:41 -07:00
..
6lowpan	6lowpan: move mac802154 header	2016-04-13 10:41:10 +02:00
9p	remove lots of IS_ERR_VALUE abuses	2016-05-27 15:26:11 -07:00
802
8021q	vlan: Propagate MAC address to VLANs	2016-05-31 11:56:48 -07:00
appletalk	appletalk: fix erroneous return value	2016-02-18 14:59:34 -05:00
atm	net/atm: sk_err_soft must be positive	2016-05-23 13:51:10 -07:00
ax25	AX.25: Close socket connection on session completion	2016-06-18 20:55:34 -07:00
batman-adv	batman-adv: Fix speedy join in gateway client mode	2016-07-06 16:03:40 +02:00
bluetooth	Bluetooth: fix power_on vs close race	2016-05-13 16:50:23 +02:00
bridge	ipv4: Fix ip_skb_dst_mtu to use the sk passed by ip_finish_output	2016-06-30 09:02:48 -04:00
caif	net: caif: fix misleading indentation	2016-03-14 13:09:50 -04:00
can	sock: enable timestamping using control messages	2016-04-04 15:50:30 -04:00
ceph	libceph: use %s instead of %pE in dout()s	2016-05-30 23:00:23 +02:00
core	dccp: limit sk_filter trim to payload	2016-07-13 11:53:41 -07:00
dcb
dccp	dccp: limit sk_filter trim to payload	2016-07-13 11:53:41 -07:00
decnet	net: fix decnet rtnexthop parsing	2016-07-05 14:08:47 -07:00
dns_resolver	KEYS: Add a facility to restrict new links into a keyring	2016-04-11 22:37:37 +01:00
dsa	dsa: Rename switch chip data to cd	2016-05-11 19:36:28 -04:00
ethernet	eth: Pull header from first fragment via eth_get_headlen	2016-02-24 13:58:05 -05:00
hsr	net/hsr: Use setup_timer and mod_timer.	2016-05-16 14:00:43 -04:00
ieee802154	ieee802154: fix logic error in ieee802154_llsec_parse_dev_addr	2016-05-29 22:36:25 -07:00
ipv4	ipv4: reject RTNH_F_DEAD and RTNH_F_LINKDOWN from user space	2016-07-11 13:41:09 -07:00
ipv6	udp: prevent bugcheck if filter truncates packet too much	2016-07-11 12:43:15 -07:00
ipx
irda	TTY and Serial driver update for 4.7-rc1	2016-05-20 20:57:27 -07:00
iucv	af_iucv: Validate socket address length in iucv_sock_bind()	2016-01-19 14:21:08 -05:00
kcm	kcm: fix /proc memory leak	2016-06-22 16:32:23 -04:00
key
l2tp	l2tp: fix configuration passed to setup_udp_tunnel_sock()	2016-06-08 11:11:53 -07:00
l3mdev	net: l3mdev: Allow send on enslaved interface	2016-05-09 22:33:52 -04:00
lapb	net/lapb: tuse %*ph to dump buffers	2016-05-29 22:33:25 -07:00
llc	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-05-09 15:59:24 -04:00
mac80211	mac80211: Fix mesh estab_plinks counting in STA removal case	2016-06-28 12:39:50 +02:00
mac802154	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next	2016-03-19 10:05:34 -07:00
mpls	gso: Remove arbitrary checks for unsupported GSO	2016-05-20 18:03:15 -04:00
netfilter	netfilter: conntrack: skip clash resolution if nat is in place	2016-07-12 16:28:41 +02:00
netlabel	netlabel: fix a problem with netlbl_secattr_catmap_setrng()	2016-04-05 16:10:47 -04:00
netlink	netlink: Fix dump skb leak/double free	2016-05-16 22:05:15 -04:00
netrom
nfc	nfc: nci: Add nci_nfcc_loopback to the nci core	2016-05-04 01:48:16 +02:00
openvswitch	openvswitch: fix conntrack netlink event delivery	2016-06-29 08:13:59 -04:00
packet	packet: Use symmetric hash for PACKET_FANOUT_HASH.	2016-07-01 16:07:50 -04:00
phonet	sock: struct proto hash function may error	2016-02-11 03:54:14 -05:00
qrtr	Merge tag 'qcom-soc-for-4.7-2' into net-next	2016-05-17 14:11:19 -04:00
rds	RDS: fix rds_tcp_init() error path	2016-07-04 16:09:49 -07:00
rfkill	rfkill: Use switch to demux userspace operations	2016-04-05 10:48:53 +02:00
rose	rose: limit sk_filter trim to payload	2016-07-13 11:53:40 -07:00
rxrpc	rxrpc: fix ptr_ret.cocci warnings	2016-06-07 15:30:21 -07:00
sched	net_sched: fix mirrored packets checksum	2016-07-01 16:19:34 -04:00
sctp	net: diag: add missing declarations	2016-06-10 23:22:55 -07:00
sunrpc	rpc: share one xps between all backchannels	2016-06-15 10:32:25 -04:00
switchdev	switchdev: pass pointer to fib_info instead of copy	2016-05-17 13:58:49 -04:00
tipc	tipc: reset all unicast links when broadcast send link fails	2016-07-11 22:42:12 -07:00
unix	Merge branch 'overlayfs-af_unix-fix' into overlayfs-linus	2016-06-12 12:05:21 +02:00
vmw_vsock	vsock: make listener child lock ordering explicit	2016-06-27 10:44:46 -04:00
wimax
wireless	cfg80211: handle failed skb allocation	2016-07-06 13:52:18 +02:00
x25	net: fix a kernel infoleak in x25 module	2016-05-09 22:45:33 -04:00
xfrm	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2016-05-09 15:59:24 -04:00
compat.c	packet: compat support for sock_fprog	2016-06-09 23:41:03 -07:00
Kconfig	bpf: add generic constant blinding for use in jits	2016-05-16 13:49:32 -04:00
Makefile	net: Add Qualcomm IPC router	2016-05-08 23:46:14 -04:00
socket.c	fs: poll/select/recvmmsg: use timespec64 for timeout events	2016-05-19 19:12:14 -07:00
sysctl_net.c