[PATCH net 0/3] Netfilter fixes for net

[Pablo Neira Ayuso <pablo@netfilter.org>]

Hi,

The following patchset contains Netfilter fixes for net:

1) refcount_inc_not_zero() is not semantically equivalent to
   atomic_int_not_zero(), from Florian Westphal. My understanding was
   that refcount_*() API provides a wrapper to easier debugging of
   reference count leaks, however, there are semantic differences
   between these two APIs, where refcount_inc_not_zero() needs a barrier.
   Reason for this subtle difference to me is unknown.

2) packet logging is not correct for ARP and IP packets, from the
   ARP family and netdev/egress respectively. Use skb_network_offset()
   to reach the headers accordingly.

3) set element extension length have been growing over time, replace
   a BUG_ON by EINVAL which might be triggerable from userspace.

Please, pull these changes from:

  git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf.git

Thanks.

----------------------------------------------------------------

The following changes since commit 280e3a857d96f9ca8e24632788e1e7a0fec4e9f7:

  Merge git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf (2022-07-03 12:29:18 +0100)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf.git HEAD

for you to fetch changes up to c39ba4de6b0a843bec5d46c2b6f2064428dada5e:

  netfilter: nf_tables: replace BUG_ON by element length check (2022-07-09 16:25:09 +0200)

----------------------------------------------------------------
Florian Westphal (1):
      netfilter: conntrack: fix crash due to confirmed bit load reordering

Pablo Neira Ayuso (2):
      netfilter: nf_log: incorrect offset to network header
      netfilter: nf_tables: replace BUG_ON by element length check

 include/net/netfilter/nf_tables.h       | 14 ++++---
 net/netfilter/nf_conntrack_core.c       | 22 ++++++++++
 net/netfilter/nf_conntrack_netlink.c    |  1 +
 net/netfilter/nf_conntrack_standalone.c |  3 ++
 net/netfilter/nf_log_syslog.c           |  8 ++--
 net/netfilter/nf_tables_api.c           | 72 +++++++++++++++++++++++----------
 6 files changed, 90 insertions(+), 30 deletions(-)