[Bug 1692] New: CentOS 7 kernel up to 3.10.0-1160.92.1.el7.x86_64 - nftables hangs the system on set flush

[bugzilla-daemon at netfilter.org]

https://bugzilla.netfilter.org/show_bug.cgi?id=1692

            Bug ID: 1692
           Summary: CentOS 7 kernel up to 3.10.0-1160.92.1.el7.x86_64 -
                    nftables hangs the system on set flush
           Product: nftables
           Version: unspecified
          Hardware: x86_64
                OS: other
            Status: NEW
          Severity: blocker
          Priority: P5
         Component: kernel
          Assignee: pablo at netfilter.org
          Reporter: ivan.agarkov at gmail.com

Created attachment 719
  --> https://bugzilla.netfilter.org/attachment.cgi?id=719&action=edit
nftables config

Environment
- CentOS 7 kernel 3.10.0-1160.92.1.el7.x86_64 ( also tested 2 kernels back )
- Both HW & VM

Steps to reproduce:
1. Apply attached nftables config
2. Run ( as root )
while true; do sudo nft add element ip test allow { 127.0.0.2 }; sudo nft flush
set ip test allow; echo -n .; done
3. Wait

Expected behavior:
- It works

Experienced behavior:
- After a few cycles the system hangs and I need to press reboot make it work

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