Public bug reported:

We see some nftables/netfilter problems after kernel upgrade from 
5.15.0-1061-gke to 5.15.0-1067-gke.
Correct transaction with nft fails with "Error: Could not process rule: Device 
or resource busy"
which usually means a deleted chain is referenced, but you can see it's not.
Full nft table dump + transaction + error is in the attached file.
This is logs from kubernetes CI, which started failing immediately after 
mentioned kernel update.

** Affects: ubuntu
     Importance: Undecided
         Status: New

** Attachment added: "log"
   https://bugs.launchpad.net/bugs/2089699/+attachment/5840612/+files/log

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https://bugs.launchpad.net/bugs/2089699

Title:
  kernel:nft "Could not process rule: Device or resource busy" on
  unreferenced chain

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