You have been subscribed to a public bug:
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: linux-gke (Ubuntu)
Importance: Undecided
Status: New
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kernel:nft "Could not process rule: Device or resource busy" on unreferenced
chain
https://bugs.launchpad.net/bugs/2089699
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