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

  - In the Linux kernel, the following vulnerability has been resolved: net/mlx5e: Prevent stale XSK buffer     release on refill retry When an XDP redirect to an AF_XDP socket fails because its RX ring is full, the     XSK core frees the buffer. During the subsequent batched refill of a legacy cyclic RQ, mlx5e also releases     the WQE's XSK buffer before allocating a replacement. If that refill succeeds only partially, a WQE left     without a replacement retains its old buffer pointer. The buffer can meanwhile be allocated to another     WQE. A later refill retry can then free the live buffer through the stale pointer and publish the same     UMEM frame twice. Mark the WQE as released immediately after the driver-side free. The flag is already     cleared when a replacement buffer is assigned, so refill retries no longer release stale pointers. The     failure is silent and produces no kernel warning or splat. A standalone legacy cyclic-RQ zero-copy libxsk     reproducer, using 64-byte UDP traffic offered at 12 Mpps, detected it: stock stopped after 2,854,914     packets in 4.094 seconds, with 4,542 xdp_rx_ring_full events and 64 ownership/double-publication errors.
    With this change it processed 356,904,225 packets in 30 seconds despite 571,405 xdp_rx_ring_full events,     with no ownership or data errors. (CVE-2026-99079)

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

An update of the linux package has been released.

ID	Name	Product	Family	Published	Updated	Severity
372155	Linux Distros Unpatched Vulnerability : CVE-2026-99079	Nessus	Misc.	10/26/2026	11/13/2026	critical
375086	Photon OS 5.0: Linux PHSA-2026-5.0-92-1044	Nessus	PhotonOS Local Security Checks	11/2/2026	11/2/2026	critical
373466	Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2026-3335)	Nessus	Amazon Linux Local Security Checks	10/29/2026	11/4/2026	medium

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