CVE-2026-31428 netfilter: nfnetlink_log: fix uninitialized padding leak in NFULA_PAYLOAD

In the Linux kernel, the following vulnerability has been resolved: netfilter: nfnetlinklog: fix uninitialized padding leak in NFULAPAYLOAD buildpacketmessage manually constructs the NFULAPAYLOAD netlink attribute using skbput and skbcopybits, bypassing the standard nlareserve/nlaput helpers. Whi...