APPLIED/CMT: [SRU][F:linux-bluefield][PATCH V2 0/9] Fix fragmentation support for TC connection tracking

Kelsey Skunberg kelsey.skunberg at canonical.com
Fri Sep 3 21:15:10 UTC 2021


Applied to F/bluefield master-next. patch 6 didn't apply cleanly, though it was
minor context change. thank you!

-Kelsey

On 2021-09-01 12:14:11 , Bodong Wang wrote:
> When using OVS with tc to offload connection tracking flows, sending udp/icmp
> fragmented traffic will cause call trace with NULL dereference.
> 
> This series contains 7 patches from upstream which fix act_ct handling of
> fragmented packets. And revert a patch which is covered by the 7 upstream
> patches.
> 
> V0->V1:
> Fix backport commit message for patch 1/8
> 
> V1->v2:
> Add new patch from Davide for better backporting.
> Fix backport commit message for the patches which can't be applied cleanly.
> 
> Davide Caratti (1):
>   net/sched: act_ct: fix wild memory access when clearing fragments
> 
> Maor Dickman (1):
>   Revert "net/sched: act_ct: Fix skb double-free in
>     tcf_ct_handle_fragments() error flow"
> 
> liujian (1):
>   net/sched: The error lable position is corrected in ct_init_module
> 
> wenxu (6):
>   net/sched: act_ct: fix restore the qdisc_skb_cb after defrag
>   net/sched: act_ct: fix miss set mru for ovs after defrag in act_ct
>   net/sched: fix miss init the mru in qdisc_skb_cb
>   net/sched: act_mirred: refactor the handle of xmit
>   net/sched: sch_frag: add generic packet fragment support.
>   ipv6: add ipv6_fragment hook in ipv6_stub
> 
>  include/linux/skbuff.h    |   1 +
>  include/net/act_api.h     |   6 ++
>  include/net/ipv6_stubs.h  |   2 +
>  include/net/sch_generic.h |   8 +--
>  net/core/dev.c            |   2 +
>  net/ipv6/addrconf_core.c  |   8 +++
>  net/ipv6/af_inet6.c       |   1 +
>  net/openvswitch/flow.c    |   1 +
>  net/sched/Makefile        |   1 +
>  net/sched/act_api.c       |  16 +++++
>  net/sched/act_ct.c        |  33 +++++++---
>  net/sched/act_mirred.c    |  21 +++++--
>  net/sched/cls_api.c       |   1 +
>  net/sched/sch_frag.c      | 150 ++++++++++++++++++++++++++++++++++++++++++++++
>  14 files changed, 233 insertions(+), 18 deletions(-)
>  create mode 100644 net/sched/sch_frag.c
> 
> -- 
> 1.8.3.1
> 
> 
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