Hannes Frederic Sowa 89bc7848a9 ipv6: protect mtu calculation of wrap-around and infinite loop by rounding issues ... Raw sockets with hdrincl enabled can insert ipv6 extension headers right into the data stream. In case we need to fragment those packets, we reparse the options header to find the place where we can insert the fragment header. If the extension headers exceed the link's MTU we actually cannot make progress in such a case. Instead of ending up in broken arithmetic or rounding towards 0 and entering an endless loop in ip6_fragment, just prevent those cases by aborting early and signal -EMSGSIZE to user space. This is the second version of the patch which doesn't use the overflow_usub function, which got reverted for now. Suggested-by: Linus Torvalds <torvalds@linux-foundation.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Reported-by: Dmitry Vyukov <dvyukov@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>		2015-10-29 07:01:50 -07:00
..
6lowpan	6lowpan: move module_init into core functionality	2015-08-11 22:05:36 +02:00
9p	net/9p: Remove ib_get_dma_mr calls	2015-08-30 18:12:36 -04:00
802	net: Kill dev_rebuild_header	2015-03-02 16:43:41 -05:00
8021q	net: 8021q: convert to using IFF_NO_QUEUE	2015-08-18 11:55:06 -07:00
appletalk	net: Pass kern from net_proto_family.create to sk_alloc	2015-05-11 10:50:17 -04:00
atm	atm: deal with setting entry before mkip was called	2015-09-17 22:13:32 -07:00
ax25	NET: AX.25: Stop heartbeat timer on disconnect.	2015-07-15 15:59:58 -07:00
batman-adv	batman-adv: turn batadv_neigh_node_get() into local function	2015-08-27 20:15:34 +02:00
bluetooth	Bluetooth: Fix initializing conn_params in scan phase	2015-10-16 09:24:41 +02:00
bridge	bridge: fix igmpv3 / mldv2 report parsing	2015-09-11 15:08:20 -07:00
caif	net: caif: convert to using IFF_NO_QUEUE	2015-08-18 11:55:07 -07:00
can	can: replace timestamp as unique skb attribute	2015-07-12 21:13:22 +02:00
ceph	rbd: use writefull op for object size writes	2015-10-16 16:49:01 +02:00
core	openvswitch: Fix egress tunnel info.	2015-10-22 19:39:25 -07:00
dcb	net/dcb: Add IEEE QCN attribute	2015-03-06 21:50:02 -05:00
dccp	tcp/dccp: fix timewait races in timer handling	2015-09-21 16:32:29 -07:00
decnet	net: ipv6: use common fib_default_rule_pref	2015-09-09 14:19:50 -07:00
dns_resolver
dsa	net: dsa: exit probe if no switch were found	2015-10-07 04:56:11 -07:00
ethernet	flow_dissector: Add flags argument to skb_flow_dissector functions	2015-09-01 15:06:22 -07:00
hsr	net: hsr: convert to using IFF_NO_QUEUE	2015-08-18 11:55:07 -07:00
ieee802154	Merge branch 'for-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/bluetooth/bluetooth-next	2015-08-29 13:15:03 -07:00
ipv4	fib_trie: leaf_walk_rcu should not compute key if key is less than pn->key	2015-10-27 18:14:51 -07:00
ipv6	ipv6: protect mtu calculation of wrap-around and infinite loop by rounding issues	2015-10-29 07:01:50 -07:00
ipx	net: Pass kern from net_proto_family.create to sk_alloc	2015-05-11 10:50:17 -04:00
irda	irda: precedence bug in irlmp_seq_hb_idx()	2015-10-21 07:48:26 -07:00
iucv	net: Pass kern from net_proto_family.create to sk_alloc	2015-05-11 10:50:17 -04:00
key	af_key: fix two typos	2015-10-23 03:05:19 -07:00
l2tp	l2tp: protect tunnel->del_work by ref_count	2015-09-28 22:39:10 -07:00
lapb
llc	tcp: fix recv with flags MSG_WAITALL | MSG_PEEK	2015-07-27 01:06:53 -07:00
mac80211	mac80211: Fix hwflags debugfs file format	2015-10-13 10:30:56 +02:00
mac802154	ieee802154: add ack request default handling	2015-08-10 20:43:06 +02:00
mpls	mpls: fix mpls_net_init memory leak	2015-08-31 12:45:09 -07:00
netfilter	netfilter: ipset: Fix sleeping memory allocation in atomic context	2015-10-17 13:01:24 +02:00
netlabel	netlink: implement nla_put_in_addr and nla_put_in6_addr	2015-03-31 13:58:35 -04:00
netlink	netlink: fix locking around NETLINK_LIST_MEMBERSHIPS	2015-10-22 07:18:28 -07:00
netrom	netfilter: Remove spurios included of netfilter.h	2015-06-18 21:14:32 +02:00
nfc	nfc: netlink: Add capability to reply to vendor_cmd with data	2015-08-20 22:00:11 +02:00
openvswitch	openvswitch: Fix skb leak using IPv6 defrag	2015-10-27 19:32:18 -07:00
packet	Fix AF_PACKET ABI breakage in 4.2	2015-09-23 14:33:55 -07:00
phonet	net: Pass kern from net_proto_family.create to sk_alloc	2015-05-11 10:50:17 -04:00
rds	RDS-TCP: Recover correctly from pskb_pull()/pksb_trim() failure in rds_tcp_data_recv	2015-10-27 19:46:34 -07:00
rfkill	rfkill: Copy "all" global state to other types	2015-09-04 14:26:56 +02:00
rose	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2015-06-24 02:58:51 -07:00
rxrpc	net: Pass kern from net_proto_family.create to sk_alloc	2015-05-11 10:50:17 -04:00
sched	sch_hhf: fix return value of hhf_drop()	2015-10-11 04:49:33 -07:00
sctp	net: sctp: Don't use 64 kilobyte lookup table for four elements	2015-09-28 22:52:21 -07:00
sunrpc	Changes for 4.3-rc5	2015-10-15 13:44:35 -07:00
switchdev	switchdev: check if the vlan id is in the proper vlan range	2015-10-13 04:43:24 -07:00
tipc	tipc: conditionally expand buffer headroom over udp tunnel	2015-10-21 19:13:48 -07:00
unix	net/unix: fix logic about sk_peek_offset	2015-10-05 06:33:09 -07:00
vmw_vsock	VSOCK: Fix lockdep issue.	2015-10-22 18:26:29 -07:00
wimax	net:wimax: Fix doucble word "the the" in networking.xml	2015-08-09 22:43:52 -07:00
wireless	cfg80211: regulatory: restore proper user alpha2	2015-09-04 14:29:25 +02:00
x25	net: Pass kern from net_proto_family.create to sk_alloc	2015-05-11 10:50:17 -04:00
xfrm	xfrm: Fix state threshold configuration from userspace	2015-09-29 11:45:55 +02:00
compat.c	net: switch importing msghdr from userland to {compat_,}import_iovec()	2015-04-09 00:02:26 -04:00
Kconfig	lwtunnel: infrastructure for handling light weight tunnels like mpls	2015-07-21 10:39:03 -07:00
Makefile	mpls: Refactor how the mpls module is built	2015-03-04 00:26:06 -05:00
socket.c	net: Add a struct net parameter to sock_create_kern	2015-05-11 10:50:17 -04:00
sysctl_net.c	net: sysctl: fix a kmemleak warning	2015-10-23 06:22:08 -07:00