In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlink_queue: drop bogus WARN_ON Happens when rules get flushed/deleted while packet is out, so remove this WARN_ON. This WARN exists in one form or another since v4.14, no need to backport this to older releases, hence use a more recent fixes tag.
https://git.kernel.org/stable/c/86858da8335db48bde9be02abd7156a69d622e86
https://git.kernel.org/stable/c/631a4b3ddc7831b20442c59c28b0476d0704c9af