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Date:   Thu, 13 Oct 2022 01:50:16 +0000
To:     Xin Long <>
Subject: Re: [PATCH net] openvswitch: add nf_ct_is_confirmed check before
 assigning the helper


This patch was applied to netdev/net.git (master)
by Jakub Kicinski <>:

On Thu,  6 Oct 2022 15:45:02 -0400 you wrote:
> A WARN_ON call trace would be triggered when 'ct(commit, alg=helper)'
> applies on a confirmed connection:
>   WARNING: CPU: 0 PID: 1251 at net/netfilter/nf_conntrack_extend.c:98
>   RIP: 0010:nf_ct_ext_add+0x12d/0x150 [nf_conntrack]
>   Call Trace:
>    <TASK>
>    nf_ct_helper_ext_add+0x12/0x60 [nf_conntrack]
>    __nf_ct_try_assign_helper+0xc4/0x160 [nf_conntrack]
>    __ovs_ct_lookup+0x72e/0x780 [openvswitch]
>    ovs_ct_execute+0x1d8/0x920 [openvswitch]
>    do_execute_actions+0x4e6/0xb60 [openvswitch]
>    ovs_execute_actions+0x60/0x140 [openvswitch]
>    ovs_packet_cmd_execute+0x2ad/0x310 [openvswitch]
>    genl_family_rcv_msg_doit.isra.15+0x113/0x150
>    genl_rcv_msg+0xef/0x1f0
> [...]

Here is the summary with links:
  - [net] openvswitch: add nf_ct_is_confirmed check before assigning the helper

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