Hi David,
The following patchset contains Netfilter fixes for you net tree,
they are:
1) There was a race condition between parallel save/swap and delete,
which resulted a kernel crash due to the increase ref for save, swap,
wrong ref decrease operations. Reported and fixed by Vishwanath Pai.
2) OVS should call into CT NAT for packets of new expected connections only
when the conntrack state is persisted with the 'commit' option to the
OVS CT action. From Jarno Rajahalme.
3) Resolve kconfig dependencies with new OVS NAT support. From Arnd Bergmann.
4) Early validation of entry->target_offset to make sure it doesn't take us
out from the blob, from Florian Westphal.
5) Again early validation of entry->next_offset to make sure it doesn't take
out from the blob, also from Florian.
6) Check that entry->target_offset is always of of sizeof(struct xt_entry)
for unconditional entries, when checking both from check_underflow()
and when checking for loops in mark_source_chains(), again from
Florian.
7) Fix inconsistent behaviour in nfnetlink_queue when
NFQA_CFG_F_FAIL_OPEN is set and netlink_unicast() fails due to buffer
overrun, we have to reinject the packet as the user expects.
8) Enforce nul-terminated table names from getsockopt GET_ENTRIES
requests.
9) Don't assume skb->sk is set from nft_bridge_reject and synproxy,
this fixes a recent update of the code to namespaceify
ip_default_ttl, patch from Liping Zhang.
This batch comes with four patches to validate x_tables blobs coming
from userspace. CONFIG_USERNS exposes the x_tables interface to
unpriviledged users and to be honest this interface never received the
attention for this move away from the CAP_NET_ADMIN domain. Florian is
working on another round with more patches with more sanity checks, so
expect a bit more Netfilter fixes in this development cycle than usual.
You can pull these changes from:
git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf.git
Thanks!
----------------------------------------------------------------
The following changes since commit d7be81a5916bdb1d904803958e5991a16f7ae4b2:
ravb: fix software timestamping (2016-03-27 22:41:37 -0400)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf.git HEAD
for you to fetch changes up to 29421198c3a860092e27c2ad8499dfe603398817:
netfilter: ipv4: fix NULL dereference (2016-03-28 17:59:29 +0200)
----------------------------------------------------------------
Arnd Bergmann (1):
openvswitch: call only into reachable nf-nat code
Florian Westphal (3):
netfilter: x_tables: validate e->target_offset early
netfilter: x_tables: make sure e->next_offset covers remaining blob size
netfilter: x_tables: fix unconditional helper
Jarno Rajahalme (1):
openvswitch: Fix checking for new expected connections.
Liping Zhang (1):
netfilter: ipv4: fix NULL dereference
Pablo Neira Ayuso (2):
netfilter: nfnetlink_queue: honor NFQA_CFG_F_FAIL_OPEN when netlink unicast fails
netfilter: x_tables: enforce nul-terminated table name from getsockopt GET_ENTRIES
Vishwanath Pai (1):
netfilter: ipset: fix race condition in ipset save, swap and delete
include/linux/netfilter/ipset/ip_set.h | 4 +++
net/bridge/netfilter/ebtables.c | 4 +++
net/bridge/netfilter/nft_reject_bridge.c | 20 ++++++------
net/ipv4/netfilter/arp_tables.c | 43 +++++++++++++------------
net/ipv4/netfilter/ip_tables.c | 48 ++++++++++++++--------------
net/ipv4/netfilter/ipt_SYNPROXY.c | 54 +++++++++++++++++---------------
net/ipv6/netfilter/ip6_tables.c | 48 ++++++++++++++--------------
net/netfilter/ipset/ip_set_bitmap_gen.h | 2 +-
net/netfilter/ipset/ip_set_core.c | 33 ++++++++++++++++---
net/netfilter/ipset/ip_set_hash_gen.h | 2 +-
net/netfilter/ipset/ip_set_list_set.c | 2 +-
net/netfilter/nfnetlink_queue.c | 7 ++++-
net/openvswitch/Kconfig | 4 ++-
net/openvswitch/conntrack.c | 21 +++++++------
14 files changed, 170 insertions(+), 122 deletions(-)
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