Re: [PATCH] fix use after free in netlink_kernel_create()

Akinobu Mita wrote:

This patch invalidates nl_table by setting NULL when netlink
initialization failed. Otherwise netlink_kernel_create() would
access nl_table which has already been freed.

Quite a few users of netlink_kernel_create will panic when creating
the socket fails (rtnetlink for example, which is always present),
so you might as well call panic here directly.