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: virtio_balloon: quiesce balloon work     before device shutdown Commit 8bd2fa086a04 (virtio: break and reset virtio devices on device_shutdown())     added a generic virtio bus .shutdown handler that breaks and resets every virtio device during     device_shutdown(), i.e. on reboot and kexec. virtio_balloon provides no .shutdown of its own, so that     generic path runs while the balloon's asynchronous work is still armed. Once the device has been broken,     virtqueue_add_inbuf() in virtballoon_free_page_report() returns -EIO and trips its WARN_ON_ONCE(). On a     kernel booted with panic_on_warn that turns an ordinary reboot, for example a kexec based upgrade, into a     fatal panic in the middle of device_shutdown(), so the machine never reaches the new kernel. Relaxing that     single WARN_ON_ONCE() would only hide the symptom: the inflate/deflate and OOM paths do not warn, they     call wait_event(vb->acked, ...) and would instead block forever on a broken queue that can no longer     complete. The device has to be quiesced, not just kept quiet. Add a .shutdown handler that quiesces the     balloon via the shared virtballoon_quiesce() helper while the device is still alive, and only then breaks     and resets it via virtio_device_shutdown(). Unlike virtballoon_remove() the balloon workqueue is not     destroyed, as shutdown does not free the device and cancel_work_sync() together with stop_update already     prevent any further work from being queued. (CVE-2026-90129)

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

ID	Name	Product	Family	Published	Updated	Severity
347326	Linux Distros Unpatched Vulnerability : CVE-2026-90129	Nessus	Misc.	9/18/2026	11/11/2026	medium
376443	Ubuntu 24.04 LTS / 26.04 LTS : Linux kernel vulnerabilities (USN-8959-1)	Nessus	Ubuntu Local Security Checks	11/5/2026	11/5/2026	high
365258	Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-3192)	Nessus	Amazon Linux Local Security Checks	10/12/2026	10/29/2026	high

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