An update of the linux package has been released.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - netfilter: nfnetlink_log: fix uninitialized padding leak in NFULA_PAYLOAD __build_packet_message()     manually constructs the NFULA_PAYLOAD netlink attribute using skb_put() and skb_copy_bits(), bypassing the     standard nla_reserve()/nla_put() helpers. While nla_total_size(data_len) bytes are allocated (including     NLA alignment padding), only data_len bytes of actual packet data are copied. The trailing     nla_padlen(data_len) bytes (1-3 when data_len is not 4-byte aligned) are never initialized, leaking stale     heap contents to userspace via the NFLOG netlink socket. Replace the manual attribute construction with     nla_reserve(), which handles the tailroom check, header setup, and padding zeroing via __nla_reserve().
    The subsequent skb_copy_bits() fills in the payload data on top of the properly initialized attribute.
    (CVE-2026-31428)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Published	Updated	Severity
310098	Photon OS 4.0: Linux PHSA-2026-4.0-1002	Nessus	PhotonOS Local Security Checks	4/24/2026	4/27/2026	high
310100	Photon OS 5.0: Linux PHSA-2026-5.0-0830	Nessus	PhotonOS Local Security Checks	4/24/2026	4/28/2026	medium
306186	Linux Distros Unpatched Vulnerability : CVE-2026-31428	Nessus	Misc.	4/13/2026	4/16/2026	medium

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