kernel_samsung_sm7125

jenna

History

Brian Haley bf0b48dfc3 [IPv6]: Fix ICMPv6 redirect handling with target multicast address When the ICMPv6 Target address is multicast, Linux processes the redirect instead of dropping it. The problem is in this code in ndisc_redirect_rcv(): if (ipv6_addr_equal(dest, target)) { on_link = 1; } else if (!(ipv6_addr_type(target) & IPV6_ADDR_LINKLOCAL)) { ND_PRINTK2(KERN_WARNING "ICMPv6 Redirect: target address is not link-local.\n"); return; } This second check will succeed if the Target address is, for example, FF02::1 because it has link-local scope. Instead, it should be checking if it's a unicast link-local address, as stated in RFC 2461/4861 Section 8.1: - The ICMP Target Address is either a link-local address (when redirected to a router) or the same as the ICMP Destination Address (when redirected to the on-link destination). I know this doesn't explicitly say unicast link-local address, but it's implied. This bug is preventing Linux kernels from achieving IPv6 Logo Phase II certification because of a recent error that was found in the TAHI test suite - Neighbor Disovery suite test 206 (v6LC.2.3.6_G) had the multicast address in the Destination field instead of Target field, so we were passing the test. This won't be the case anymore. The patch below fixes this problem, and also fixes ndisc_send_redirect() to not send an invalid redirect with a multicast address in the Target field. I re-ran the TAHI Neighbor Discovery section to make sure Linux passes all 245 tests now. Signed-off-by: Brian Haley <brian.haley@hp.com> Acked-by: David L Stevens <dlstevens@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>		18 years ago
..
9p	9p: fix bad error path in conversion routines	18 years ago
802	[SNAP]: Check packet length before reading	18 years ago
8021q	[VLAN]: Fix net_device leak.	18 years ago
appletalk	…
atm	…
ax25	…
bluetooth	…
bridge	[NET] skbuff: Add skb_cow_head	18 years ago
core	…
dccp	…
decnet	…
econet	…
ethernet	…
ieee80211	…
ipv4	…
ipv6	[IPv6]: Fix ICMPv6 redirect handling with target multicast address	18 years ago
ipx	…
irda	…
iucv	…
key	…
lapb	…
llc	…
mac80211	[PATCH] mac80211: fix initialisation when built-in	18 years ago
netfilter	…
netlabel	…
netlink	[GENETLINK]: Correctly report errors while registering a multicast group	18 years ago
netrom	…
packet	…
rfkill	…
rose	…
rxrpc	net/* misc endianness annotations	18 years ago
sched	…
sctp	…
sunrpc	rpc: fix garbage in printk in svc_tcp_accept()	18 years ago
tipc	…
unix	…
wanrouter	…
wireless	…
x25	…
xfrm	…
Kconfig	…
Makefile	…
TUNABLE	…
compat.c	…
nonet.c	…
socket.c	…
sysctl_net.c	…