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
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netfilter	ipv6: Export nf_ct_frag6_consume_orig()	2015-10-27 19:32:17 -07:00
addrconf_core.c
addrconf.c	ipv6: gre: setup default multicast routes over PtP links	2015-10-11 05:30:43 -07:00
addrlabel.c
af_inet6.c
ah6.c
anycast.c
datagram.c
esp6.c
exthdrs_core.c
exthdrs_offload.c
exthdrs.c
fib6_rules.c	ipv6: fix the incorrect return value of throw route	2015-10-23 02:38:18 -07:00
icmp.c
ila.c
inet6_connection_sock.c
inet6_hashtables.c
ip6_checksum.c
ip6_fib.c	ipv6: fix the incorrect return value of throw route	2015-10-23 02:38:18 -07:00
ip6_flowlabel.c
ip6_gre.c	ip6_gre: Reduce log level in ip6gre_err() to debug	2015-09-24 15:28:43 -07:00
ip6_icmp.c
ip6_input.c
ip6_offload.c
ip6_offload.h
ip6_output.c	ipv6: protect mtu calculation of wrap-around and infinite loop by rounding issues	2015-10-29 07:01:50 -07:00
ip6_tunnel.c	ip6_tunnel: Reduce log level in ip6_tnl_err() to debug	2015-09-24 16:08:37 -07:00
ip6_udp_tunnel.c
ip6_vti.c
ip6mr.c	net: ipv6: use common fib_default_rule_pref	2015-09-09 14:19:50 -07:00
ipcomp6.c
ipv6_sockglue.c
Kconfig
Makefile
mcast_snoop.c
mcast.c
mip6.c
ndisc.c
netfilter.c
output_core.c
ping.c
proc.c
protocol.c
raw.c
reassembly.c
route.c	net: ipv6: Dont add RT6_LOOKUP_F_IFACE flag if saddr set	2015-10-22 07:36:19 -07:00
sit.c
syncookies.c
sysctl_net_ipv6.c
tcp_ipv6.c
tcpv6_offload.c
tunnel6.c
udp_impl.h
udp_offload.c
udp.c
udplite.c
xfrm6_input.c
xfrm6_mode_beet.c
xfrm6_mode_ro.c
xfrm6_mode_transport.c
xfrm6_mode_tunnel.c
xfrm6_output.c	xfrm: Fix pmtu discovery for local generated packets.	2015-10-19 10:30:05 +02:00
xfrm6_policy.c	Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec	2015-10-22 07:46:05 -07:00
xfrm6_protocol.c
xfrm6_state.c
xfrm6_tunnel.c