[4.4,stable,00/10] net: ip6 defrag: backport fixes

This is a backport of a 5.1rc patchset:
  https://patchwork.ozlabs.org/cover/1029418/

Which was backported into 4.19:
  https://patchwork.ozlabs.org/cover/1081619/

and into 4.14:
  https://patchwork.ozlabs.org/cover/1089651/

and into 4.9:
  https://www.spinics.net/lists/netdev/msg567087.html 

This patchset for 4.4 is based on Peter Oskolkov's patchsets above.
5 additional patches has been added to make it all apply, build
and pass TAHI IPv6 Ready test with the IOL INTACT test tool.
Without this patchset 2 extension header tests and 12 fragmentation
tests fail to pass. The previous attempt to fix this seamed to end
here: https://www.spinics.net/lists/netdev/msg567728.html
It would be nice if someone with more netfilter
and fragmentation knowledge than me could review it.

Florian Westphal (3):
  netfilter: ipv6: nf_defrag: avoid/free clone operations
  netfilter: ipv6: avoid nf_iterate recursion
  netfilter: ipv6: nf_defrag: fix NULL deref panic
  ipv6: remove dependency of nf_defrag_ipv6 on ipv6 module

Jason A. Donenfeld (1):
  ipv6: do not increment mac header when it's unset

Subash Abhinov Kasiviswanathan (1):
  netfilter: ipv6: nf_defrag: Pass on packets to stack per RFC2460

Eric Dumazet (1):
  ipv6: frags: fix a lockdep false positive

Peter Oskolkov (3):
  net: IP defrag: encapsulate rbtree defrag code into callable functions
  net: IP6 defrag: use rbtrees for IPv6 defrag
  net: IP6 defrag: use rbtrees in nf_conntrack_reasm.c

 include/net/inet_frag.h                     |  16 +-
 include/net/ipv6.h                          |  29 ---
 include/net/ipv6_frag.h                     | 111 +++++++++
 include/net/netfilter/ipv6/nf_defrag_ipv6.h |   3 +-
 net/ieee802154/6lowpan/reassembly.c         |   2 +-
 net/ipv4/inet_fragment.c                    | 293 ++++++++++++++++++++++
 net/ipv4/ip_fragment.c                      | 295 +++--------------------
 net/ipv6/netfilter/nf_conntrack_reasm.c     | 344 ++++++++------------------
 net/ipv6/netfilter/nf_defrag_ipv6_hooks.c   |  23 +-
 net/ipv6/reassembly.c                       | 360 +++++++---------------------
 net/openvswitch/conntrack.c                 |  26 +-
 11 files changed, 664 insertions(+), 838 deletions(-)
 create mode 100644 include/net/ipv6_frag.h

Hi,

Could you tell me about the status of this patch series?
I think you need to respond to Greg's comments.

Best regards,
  Nobuhiro

On Tue, Oct 08, 2019 at 01:22:59PM +0200, Georg Kohmann wrote:
> This is a backport of a 5.1rc patchset:
>   https://patchwork.ozlabs.org/cover/1029418/
> 
> Which was backported into 4.19:
>   https://patchwork.ozlabs.org/cover/1081619/
> 
> and into 4.14:
>   https://patchwork.ozlabs.org/cover/1089651/
> 
> and into 4.9:
>   https://www.spinics.net/lists/netdev/msg567087.html 
> 
> This patchset for 4.4 is based on Peter Oskolkov's patchsets above.
> 5 additional patches has been added to make it all apply, build
> and pass TAHI IPv6 Ready test with the IOL INTACT test tool.
> Without this patchset 2 extension header tests and 12 fragmentation
> tests fail to pass. The previous attempt to fix this seamed to end
> here: https://www.spinics.net/lists/netdev/msg567728.html
> It would be nice if someone with more netfilter
> and fragmentation knowledge than me could review it.
> 
> Florian Westphal (3):
>   netfilter: ipv6: nf_defrag: avoid/free clone operations
>   netfilter: ipv6: avoid nf_iterate recursion
>   netfilter: ipv6: nf_defrag: fix NULL deref panic
>   ipv6: remove dependency of nf_defrag_ipv6 on ipv6 module
> 
> Jason A. Donenfeld (1):
>   ipv6: do not increment mac header when it's unset
> 
> Subash Abhinov Kasiviswanathan (1):
>   netfilter: ipv6: nf_defrag: Pass on packets to stack per RFC2460
> 
> Eric Dumazet (1):
>   ipv6: frags: fix a lockdep false positive
> 
> Peter Oskolkov (3):
>   net: IP defrag: encapsulate rbtree defrag code into callable functions
>   net: IP6 defrag: use rbtrees for IPv6 defrag
>   net: IP6 defrag: use rbtrees in nf_conntrack_reasm.c
> 
>  include/net/inet_frag.h                     |  16 +-
>  include/net/ipv6.h                          |  29 ---
>  include/net/ipv6_frag.h                     | 111 +++++++++
>  include/net/netfilter/ipv6/nf_defrag_ipv6.h |   3 +-
>  net/ieee802154/6lowpan/reassembly.c         |   2 +-
>  net/ipv4/inet_fragment.c                    | 293 ++++++++++++++++++++++
>  net/ipv4/ip_fragment.c                      | 295 +++--------------------
>  net/ipv6/netfilter/nf_conntrack_reasm.c     | 344 ++++++++------------------
>  net/ipv6/netfilter/nf_defrag_ipv6_hooks.c   |  23 +-
>  net/ipv6/reassembly.c                       | 360 +++++++---------------------
>  net/openvswitch/conntrack.c                 |  26 +-
>  11 files changed, 664 insertions(+), 838 deletions(-)
>  create mode 100644 include/net/ipv6_frag.h
> 
> -- 
> 2.10.2
> 
>