CVE-2023-53200 netfilter: x_tables: fix percpu counter block leak on error path when creating new netns

In the Linux kernel, the following vulnerability has been resolved: netfilter: xtables: fix percpu counter block leak on error path when creating new netns Here is the stack where we allocate percpu counter block: +- ip6tregistertable +- translatetable allocates percpu counter block +-...