In the Linux kernel, the following vulnerability has been resolved: PCI: use generic driver_override infrastructure When a driver is probed through __driver_attach(), the bus' match() callback is called without the device lock held, thus accessing the driver_override field without a lock, which can cause a UAF. Fix this by using the driver-core driver_override infrastructure taking care of proper locking internally. Note that calling match() from __driver_attach() without the device lock held is intentional. [1]

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-098794 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    PCI: use generic driver_override infrastructure

    When a driver is probed through __driver_attach(), the bus' match()     callback is called without the device lock held, thus accessing the     driver_override field without a lock, which can cause a UAF.

    Fix this by using the driver-core driver_override infrastructure taking     care of proper locking internally.

    Note that calling match() from __driver_attach() without the device lock     held is intentional. [1]

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

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

  - PCI: use generic driver_override infrastructure When a driver is probed through __driver_attach(), the     bus' match() callback is called without the device lock held, thus accessing the driver_override field     without a lock, which can cause a UAF. Fix this by using the driver-core driver_override infrastructure     taking care of proper locking internally. Note that calling match() from __driver_attach() without the     device lock held is intentional. [1] (CVE-2026-53120)

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

ID	Name	Product	Family	Type	Severity
340681	Ubuntu 24.04 LTS / 26.04 LTS / Pro Realtime 24.04 LTS : Linux kernel (NVIDIA) vulnerabilities (USN-8663-1)	Nessus	Ubuntu Local Security Checks	Local	high
340291	Unity Linux 20.1050a Security Update: kernel (UTSA-2026-098794)	Nessus	Unity Linux Local Security Checks	Local	high
340045	Ubuntu 26.04 LTS : Linux kernel (NVIDIA BaseOS) vulnerabilities (USN-8664-1)	Nessus	Ubuntu Local Security Checks	Local	high
322595	Linux Distros Unpatched Vulnerability : CVE-2026-53120	Nessus	Misc.	Local	high
322107	Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2026-1894)	Nessus	Amazon Linux Local Security Checks	Local	high
322020	Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-1866)	Nessus	Amazon Linux Local Security Checks	Local	high

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CVE-2026-53120

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