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Vegard Nossum ab58298cf4 net: fix decnet rtnexthop parsing 
dn_fib_count_nhs() could enter an infinite loop if nhp->rtnh_len == 0
(i.e. if userspace passes a malformed netlink message).

Let's use the helpers from net/nexthop.h which take care of all this
stuff. We can do exactly the same as e.g. fib_count_nexthops() and
fib_get_nhs() from net/ipv4/fib_semantics.c.

This fixes the softlockup for me.

Cc: Thomas Graf <tgraf@suug.ch>
Signed-off-by: Vegard Nossum <vegard.nossum@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2016-07-05 14:08:47 -07:00
..
netfilter netfilter: Pass priv instead of nf_hook_ops to netfilter hooks 2015-09-18 22:00:16 +02:00
af_decnet.c net: add validation for the socket syscall protocol argument 2015-12-14 16:09:30 -05:00
dn_dev.c netlink: make nlmsg_end() and genlmsg_end() void 2015-01-18 01:03:45 -05:00
dn_fib.c net: fix decnet rtnexthop parsing 2016-07-05 14:08:47 -07:00
dn_neigh.c netfilter: Pass net into okfn 2015-09-17 17:18:37 -07:00
dn_nsp_in.c netfilter: Pass net into okfn 2015-09-17 17:18:37 -07:00
dn_nsp_out.c net: Pass net into dst_output and remove dst_output_okfn 2015-10-08 04:26:54 -07:00
dn_route.c decnet: Do not build routes to devices without decnet private data. 2016-04-10 23:01:30 -04:00
dn_rules.c net: ipv6: use common fib_default_rule_pref 2015-09-09 14:19:50 -07:00
dn_table.c netlink: make nlmsg_end() and genlmsg_end() void 2015-01-18 01:03:45 -05:00
dn_timer.c
Kconfig
Makefile
README
sysctl_net_decnet.c
TODO

README 

                       Linux DECnet Project
                      ======================

The documentation for this kernel subsystem is available in the
Documentation/networking subdirectory of this distribution and also
on line at http://www.chygwyn.com/DECnet/

Steve Whitehouse <SteveW@ACM.org>