Linux Distros Unpatched Vulnerability : CVE-2026-31726

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
##

include('compat.inc');

if (description)
{
  script_id(311565);
  script_version("1.11");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/05/30");

  script_cve_id("CVE-2026-31726");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2026-31726");

  script_set_attribute(attribute:"synopsis", value:
"The Linux/Unix host has one or more packages installed with a vulnerability that the vendor indicates will not be
patched.");
  script_set_attribute(attribute:"description", value:
"The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied
patch available.

  - usb: gadget: uvc: fix NULL pointer dereference during unbind race Commit b81ac4395bbe (usb: gadget: uvc:
    allow for application to cleanly shutdown) introduced two stages of synchronization waits totaling 1500ms
    in uvc_function_unbind() to prevent several types of kernel panics. However, this timing-based approach is
    insufficient during power management (PM) transitions. When the PM subsystem starts freezing user space
    processes, the wait_event_interruptible_timeout() is aborted early, which allows the unbind thread to
    proceed and nullify the gadget pointer (cdev->gadget = NULL): [ 814.123447][ T947] configfs-gadget.g1
    gadget.0: uvc: uvc_function_unbind() [ 814.178583][ T3173] PM: suspend entry (deep) [ 814.192487][ T3173]
    Freezing user space processes [ 814.197668][ T947] configfs-gadget.g1 gadget.0: uvc: uvc_function_unbind
    no clean disconnect, wait for release When the PM subsystem resumes or aborts the suspend and tasks are
    restarted, the V4L2 release path is executed and attempts to access the already nullified gadget pointer,
    triggering a kernel panic: [ 814.292597][ C0] PM: pm_system_irq_wakeup: 479 triggered dhdpcie_host_wake [
    814.386727][ T3173] Restarting tasks ... [ 814.403522][ T4558] Unable to handle kernel NULL pointer
    dereference at virtual address 0000000000000030 [ 814.404021][ T4558] pc : usb_gadget_deactivate+0x14/0xf4
    [ 814.404031][ T4558] lr : usb_function_deactivate+0x54/0x94 [ 814.404078][ T4558] Call trace: [
    814.404080][ T4558] usb_gadget_deactivate+0x14/0xf4 [ 814.404083][ T4558]
    usb_function_deactivate+0x54/0x94 [ 814.404087][ T4558] uvc_function_disconnect+0x1c/0x5c [ 814.404092][
    T4558] uvc_v4l2_release+0x44/0xac [ 814.404095][ T4558] v4l2_release+0xcc/0x130 Address the race condition
    and NULL pointer dereference by: 1. State Synchronization (flag + mutex) Introduce a 'func_unbound' flag
    in struct uvc_device. This allows uvc_function_disconnect() to safely skip accessing the nullified
    cdev->gadget pointer. As suggested by Alan Stern, this flag is protected by a new mutex (uvc->lock) to
    ensure proper memory ordering and prevent instruction reordering or speculative loads. This mutex is also
    used to protect 'func_connected' for consistent state management. 2. Explicit Synchronization (completion)
    Use a completion to synchronize uvc_function_unbind() with the uvc_vdev_release() callback. This prevents
    Use-After-Free (UAF) by ensuring struct uvc_device is freed after all video device resources are released.
    (CVE-2026-31726)

Note that Nessus relies on the presence of the package as reported by the vendor.");
  script_set_attribute(attribute:"see_also", value:"https://ubuntu.com/security/CVE-2026-31726");
  script_set_attribute(attribute:"solution", value:
"There is no known solution at this time.");
  script_set_attribute(attribute:"agent", value:"unix");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:M/Au:N/C:N/I:N/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:U/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:U/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-31726");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
  script_set_attribute(attribute:"vendor_unpatched", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2026/05/01");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/05/02");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:16.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:18.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:20.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:22.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:24.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:25.10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:canonical:ubuntu_linux:26.04:-:lts");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-allwinner-5.19");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-aws");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-aws-5.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-aws-5.11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-aws-5.13");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-aws-5.15");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-aws-5.19");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-aws-5.3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-aws-5.8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-aws-6.14");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-aws-6.17");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-aws-6.2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-aws-6.5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-aws-6.8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-azure");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-azure-5.11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-azure-5.13");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-azure-5.15");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-azure-5.19");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-azure-5.3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-azure-5.8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-azure-6.11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-azure-6.14");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-azure-6.17");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-azure-6.2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-azure-6.5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-azure-6.8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-azure-edge");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-azure-fde");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-azure-fde-5.15");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-azure-fde-5.19");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-azure-fde-6.14");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-azure-fde-6.17");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-azure-fde-6.2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-azure-fde-6.8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-azure-nvidia");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-azure-nvidia-6.14");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-gcp");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-gcp-5.11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-gcp-5.13");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-gcp-5.15");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-gcp-5.19");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-gcp-5.3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-gcp-5.8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-gcp-6.11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-gcp-6.14");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-gcp-6.17");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-gcp-6.2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-gcp-6.5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-gcp-6.8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-gke");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-gke-4.15");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-gke-5.15");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-gke-5.4");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-gkeop");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-gkeop-5.15");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-gkeop-5.4");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-hwe");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-hwe-5.11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-hwe-5.13");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-hwe-5.15");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-hwe-5.19");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-hwe-5.8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-hwe-6.11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-hwe-6.14");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-hwe-6.17");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-hwe-6.2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-hwe-6.5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-hwe-6.8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-hwe-edge");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-ibm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-ibm-5.15");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-ibm-6.8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-intel-5.13");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-intel-iot-realtime");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-intel-iotg");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-intel-iotg-5.15");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-kvm");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-lowlatency");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-lowlatency-hwe-5.15");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-lowlatency-hwe-5.19");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-lowlatency-hwe-6.11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-lowlatency-hwe-6.2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-lowlatency-hwe-6.5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-lowlatency-hwe-6.8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-nvidia");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-nvidia-6.11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-nvidia-6.17");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-nvidia-6.2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-nvidia-6.5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-nvidia-6.8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-nvidia-lowlatency");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-nvidia-tegra");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-nvidia-tegra-5.15");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-nvidia-tegra-igx");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-oem");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-oem-5.10");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-oem-5.13");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-oem-5.14");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-oem-5.17");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-oem-5.6");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-oem-6.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-oem-6.1");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-oem-6.11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-oem-6.14");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-oem-6.17");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-oem-6.5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-oem-6.8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-oracle");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-oracle-5.0");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-oracle-5.11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-oracle-5.13");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-oracle-5.15");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-oracle-5.3");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-oracle-5.8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-oracle-6.14");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-oracle-6.17");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-oracle-6.5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-oracle-6.8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-raspi");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-raspi-realtime");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-raspi2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-realtime");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-riscv");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-riscv-5.11");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-riscv-5.15");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-riscv-5.19");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-riscv-5.8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-riscv-6.14");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-riscv-6.17");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-riscv-6.5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-riscv-6.8");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-starfive-5.19");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-starfive-6.2");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-starfive-6.5");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-xilinx");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:canonical:ubuntu_linux:linux-xilinx-zynqmp");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info2.nasl", "set_linux_os_id.nasl");
  script_require_keys("Host/cpu", "Host/local_checks_enabled", "global_settings/vendor_unpatched", "Host/OS/identifier");
  script_require_ports("Host/OS/Ubuntu Linux-16.04", "Host/OS/Ubuntu Linux-18.04", "Host/OS/Ubuntu Linux-20.04", "Host/OS/Ubuntu Linux-22.04", "Host/OS/Ubuntu Linux-24.04", "Host/OS/Ubuntu Linux-25.10", "Host/OS/Ubuntu Linux-26.04");

  exit(0);
}

if (!get_kb_item("global_settings/vendor_unpatched")) exit(0, "Unpatched Vulnerabilities Detection not active.");
if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
if (empty_or_null(get_one_kb_item("Host/Debian/dpkg-l"))) audit(AUDIT_PACKAGE_LIST_MISSING);

include('linux_unpatched.inc');

var distro_constraints_array = {
  "Ubuntu Linux-16.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "16.04",
        "pkgs": [
          {"reference": "linux-hwe-edge"}
        ]
      }
    ]
  },
  "Ubuntu Linux-18.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "18.04",
        "pkgs": [
          {"reference": "linux-aws-5.0"},
          {"reference": "linux-aws-5.3"},
          {"reference": "linux-azure-5.3"},
          {"reference": "linux-azure-cloud-tools-4.15.0"},
          {"reference": "linux-azure-edge"},
          {"reference": "linux-azure-headers-4.15.0"},
          {"reference": "linux-azure-tools-4.15.0"},
          {"reference": "linux-cloud-tools-4.15.0"},
          {"reference": "linux-gcp-5.3"},
          {"reference": "linux-gcp-headers-4.15.0"},
          {"reference": "linux-gcp-tools-4.15.0"},
          {"reference": "linux-gke-4.15"},
          {"reference": "linux-gke-5.4"},
          {"reference": "linux-gkeop-5.4"},
          {"reference": "linux-headers-4.15.0"},
          {"reference": "linux-hwe"},
          {"reference": "linux-hwe-edge"},
          {"reference": "linux-image-4.15.0"},
          {"reference": "linux-image-unsigned-4.15.0"},
          {"reference": "linux-modules-4.15.0"},
          {"reference": "linux-modules-extra-4.15.0"},
          {"reference": "linux-oem-headers-4.15.0"},
          {"reference": "linux-oem-tools-4.15.0"},
          {"reference": "linux-oracle-5.0"},
          {"reference": "linux-oracle-5.3"},
          {"reference": "linux-tools-4.15.0"},
          {"reference": "linux-udebs-azure"},
          {"reference": "linux-udebs-oem"}
        ]
      }
    ]
  },
  "Ubuntu Linux-20.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "20.04",
        "pkgs": [
          {"reference": "linux-aws-5.11"},
          {"reference": "linux-aws-5.13"},
          {"reference": "linux-aws-5.15"},
          {"reference": "linux-aws-5.8"},
          {"reference": "linux-azure-5.11"},
          {"reference": "linux-azure-5.13"},
          {"reference": "linux-azure-5.15"},
          {"reference": "linux-azure-5.8"},
          {"reference": "linux-azure-fde"},
          {"reference": "linux-azure-fde-5.15"},
          {"reference": "linux-buildinfo-5.4.0"},
          {"reference": "linux-buildinfo-5.6.0"},
          {"reference": "linux-cloud-tools-5.4.0"},
          {"reference": "linux-cloud-tools-5.6.0"},
          {"reference": "linux-gcp-5.11"},
          {"reference": "linux-gcp-5.13"},
          {"reference": "linux-gcp-5.15"},
          {"reference": "linux-gcp-5.8"},
          {"reference": "linux-gke"},
          {"reference": "linux-gke-5.15"},
          {"reference": "linux-gkeop"},
          {"reference": "linux-gkeop-5.15"},
          {"reference": "linux-headers-5.4.0"},
          {"reference": "linux-headers-5.6.0"},
          {"reference": "linux-hwe-5.11"},
          {"reference": "linux-hwe-5.13"},
          {"reference": "linux-hwe-5.15"},
          {"reference": "linux-hwe-5.8"},
          {"reference": "linux-ibm-5.15"},
          {"reference": "linux-image-5.4.0"},
          {"reference": "linux-image-unsigned-5.6.0"},
          {"reference": "linux-intel-5.13"},
          {"reference": "linux-intel-iotg-5.15"},
          {"reference": "linux-libc-dev"},
          {"reference": "linux-lowlatency-hwe-5.15"},
          {"reference": "linux-modules-5.4.0"},
          {"reference": "linux-modules-5.6.0"},
          {"reference": "linux-modules-extra-5.4.0"},
          {"reference": "linux-modules-extra-5.6.0"},
          {"reference": "linux-nvidia-tegra-5.15"},
          {"reference": "linux-oem-5.10"},
          {"reference": "linux-oem-5.13"},
          {"reference": "linux-oem-5.14"},
          {"reference": "linux-oem-5.6-headers-5.6.0"},
          {"reference": "linux-oem-5.6-tools-5.6.0"},
          {"reference": "linux-oem-5.6-tools-common"},
          {"reference": "linux-oem-5.6-tools-host"},
          {"reference": "linux-oracle-5.11"},
          {"reference": "linux-oracle-5.13"},
          {"reference": "linux-oracle-5.15"},
          {"reference": "linux-oracle-5.8"},
          {"reference": "linux-raspi2"},
          {"reference": "linux-riscv-5.11"},
          {"reference": "linux-riscv-5.15"},
          {"reference": "linux-riscv-5.8"},
          {"reference": "linux-riscv-headers-5.4.0"},
          {"reference": "linux-riscv-tools-5.4.0"},
          {"reference": "linux-tools-5.4.0"},
          {"reference": "linux-tools-5.6.0"},
          {"reference": "linux-udebs-generic"},
          {"reference": "linux-udebs-oem"}
        ]
      }
    ]
  },
  "Ubuntu Linux-22.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "22.04",
        "pkgs": [
          {"reference": "linux-allwinner-5.19"},
          {"reference": "linux-aws-5.19"},
          {"reference": "linux-aws-6.2"},
          {"reference": "linux-aws-6.5"},
          {"reference": "linux-aws-6.8"},
          {"reference": "linux-aws-cloud-tools-5.15.0"},
          {"reference": "linux-aws-headers-5.15.0"},
          {"reference": "linux-aws-tools-5.15.0"},
          {"reference": "linux-azure-5.19"},
          {"reference": "linux-azure-6.2"},
          {"reference": "linux-azure-6.5"},
          {"reference": "linux-azure-6.8"},
          {"reference": "linux-azure-cloud-tools-5.15.0"},
          {"reference": "linux-azure-fde"},
          {"reference": "linux-azure-fde-5.19"},
          {"reference": "linux-azure-fde-6.2"},
          {"reference": "linux-azure-fde-6.8"},
          {"reference": "linux-azure-headers-5.15.0"},
          {"reference": "linux-azure-tools-5.15.0"},
          {"reference": "linux-buildinfo-5.15.0"},
          {"reference": "linux-buildinfo-5.17.0"},
          {"reference": "linux-cloud-tools-5.15.0"},
          {"reference": "linux-cloud-tools-5.17.0"},
          {"reference": "linux-cloud-tools-common"},
          {"reference": "linux-doc"},
          {"reference": "linux-gcp-5.19"},
          {"reference": "linux-gcp-6.2"},
          {"reference": "linux-gcp-6.5"},
          {"reference": "linux-gcp-6.8"},
          {"reference": "linux-gcp-headers-5.15.0"},
          {"reference": "linux-gcp-tools-5.15.0"},
          {"reference": "linux-gke-headers-5.15.0"},
          {"reference": "linux-gke-tools-5.15.0"},
          {"reference": "linux-gkeop"},
          {"reference": "linux-headers-5.15.0"},
          {"reference": "linux-headers-5.17.0"},
          {"reference": "linux-hwe-5.19"},
          {"reference": "linux-hwe-6.2"},
          {"reference": "linux-hwe-6.5"},
          {"reference": "linux-hwe-6.8"},
          {"reference": "linux-ibm-6.8"},
          {"reference": "linux-ibm-cloud-tools-5.15.0"},
          {"reference": "linux-ibm-cloud-tools-common"},
          {"reference": "linux-ibm-headers-5.15.0"},
          {"reference": "linux-ibm-source-5.15.0"},
          {"reference": "linux-ibm-tools-5.15.0"},
          {"reference": "linux-ibm-tools-common"},
          {"reference": "linux-image-5.15.0"},
          {"reference": "linux-image-unsigned-5.15.0"},
          {"reference": "linux-image-unsigned-5.17.0"},
          {"reference": "linux-intel-iot-realtime"},
          {"reference": "linux-intel-iotg-cloud-tools-5.15.0"},
          {"reference": "linux-intel-iotg-cloud-tools-common"},
          {"reference": "linux-intel-iotg-headers-5.15.0"},
          {"reference": "linux-intel-iotg-tools-5.15.0"},
          {"reference": "linux-intel-iotg-tools-common"},
          {"reference": "linux-intel-iotg-tools-host"},
          {"reference": "linux-kvm-cloud-tools-5.15.0"},
          {"reference": "linux-kvm-headers-5.15.0"},
          {"reference": "linux-kvm-tools-5.15.0"},
          {"reference": "linux-libc-dev"},
          {"reference": "linux-lowlatency-cloud-tools-5.15.0"},
          {"reference": "linux-lowlatency-cloud-tools-common"},
          {"reference": "linux-lowlatency-headers-5.15.0"},
          {"reference": "linux-lowlatency-hwe-5.19"},
          {"reference": "linux-lowlatency-hwe-6.2"},
          {"reference": "linux-lowlatency-hwe-6.5"},
          {"reference": "linux-lowlatency-hwe-6.8"},
          {"reference": "linux-lowlatency-tools-5.15.0"},
          {"reference": "linux-lowlatency-tools-common"},
          {"reference": "linux-lowlatency-tools-host"},
          {"reference": "linux-modules-5.15.0"},
          {"reference": "linux-modules-5.17.0"},
          {"reference": "linux-modules-extra-5.15.0"},
          {"reference": "linux-modules-extra-5.17.0"},
          {"reference": "linux-nvidia"},
          {"reference": "linux-nvidia-6.2"},
          {"reference": "linux-nvidia-6.5"},
          {"reference": "linux-nvidia-6.8"},
          {"reference": "linux-nvidia-tegra"},
          {"reference": "linux-nvidia-tegra-igx"},
          {"reference": "linux-oem-5.17-headers-5.17.0"},
          {"reference": "linux-oem-5.17-tools-5.17.0"},
          {"reference": "linux-oem-5.17-tools-host"},
          {"reference": "linux-oem-6.0"},
          {"reference": "linux-oem-6.1"},
          {"reference": "linux-oem-6.5"},
          {"reference": "linux-oracle-6.5"},
          {"reference": "linux-oracle-6.8"},
          {"reference": "linux-oracle-headers-5.15.0"},
          {"reference": "linux-oracle-tools-5.15.0"},
          {"reference": "linux-raspi-headers-5.15.0"},
          {"reference": "linux-raspi-tools-5.15.0"},
          {"reference": "linux-realtime"},
          {"reference": "linux-riscv-5.19"},
          {"reference": "linux-riscv-6.5"},
          {"reference": "linux-riscv-6.8"},
          {"reference": "linux-riscv-headers-5.15.0"},
          {"reference": "linux-riscv-tools-5.15.0"},
          {"reference": "linux-source-5.15.0"},
          {"reference": "linux-starfive-5.19"},
          {"reference": "linux-starfive-6.2"},
          {"reference": "linux-starfive-6.5"},
          {"reference": "linux-tools-5.15.0"},
          {"reference": "linux-tools-5.17.0"},
          {"reference": "linux-tools-common"},
          {"reference": "linux-tools-host"},
          {"reference": "linux-udebs-aws"},
          {"reference": "linux-udebs-azure"},
          {"reference": "linux-xilinx-zynqmp"}
        ]
      }
    ]
  },
  "Ubuntu Linux-24.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "24.04",
        "pkgs": [
          {"reference": "linux-aws-6.14"},
          {"reference": "linux-aws-6.17"},
          {"reference": "linux-aws-cloud-tools-6.8.0"},
          {"reference": "linux-aws-headers-6.8.0"},
          {"reference": "linux-aws-tools-6.8.0"},
          {"reference": "linux-azure-6.11"},
          {"reference": "linux-azure-6.14"},
          {"reference": "linux-azure-6.17"},
          {"reference": "linux-azure-cloud-tools-6.8.0"},
          {"reference": "linux-azure-fde"},
          {"reference": "linux-azure-fde-6.14"},
          {"reference": "linux-azure-fde-6.17"},
          {"reference": "linux-azure-headers-6.8.0"},
          {"reference": "linux-azure-nvidia"},
          {"reference": "linux-azure-nvidia-6.14"},
          {"reference": "linux-azure-tools-6.8.0"},
          {"reference": "linux-buildinfo-6.8.0"},
          {"reference": "linux-cloud-tools-6.8.0"},
          {"reference": "linux-cloud-tools-common"},
          {"reference": "linux-doc"},
          {"reference": "linux-gcp-6.11"},
          {"reference": "linux-gcp-6.14"},
          {"reference": "linux-gcp-6.17"},
          {"reference": "linux-gcp-headers-6.8.0"},
          {"reference": "linux-gcp-tools-6.8.0"},
          {"reference": "linux-gke-headers-6.8.0"},
          {"reference": "linux-gke-tools-6.8.0"},
          {"reference": "linux-gkeop"},
          {"reference": "linux-headers-6.8.0"},
          {"reference": "linux-hwe-6.11"},
          {"reference": "linux-hwe-6.14"},
          {"reference": "linux-hwe-6.17"},
          {"reference": "linux-ibm-cloud-tools-6.8.0"},
          {"reference": "linux-ibm-cloud-tools-common"},
          {"reference": "linux-ibm-headers-6.8.0"},
          {"reference": "linux-ibm-source-6.8.0"},
          {"reference": "linux-ibm-tools-6.8.0"},
          {"reference": "linux-ibm-tools-common"},
          {"reference": "linux-image-6.8.0"},
          {"reference": "linux-image-unsigned-6.8.0"},
          {"reference": "linux-lib-rust-6.8.0"},
          {"reference": "linux-libc-dev"},
          {"reference": "linux-lowlatency-cloud-tools-6.8.0"},
          {"reference": "linux-lowlatency-cloud-tools-common"},
          {"reference": "linux-lowlatency-headers-6.8.0"},
          {"reference": "linux-lowlatency-hwe-6.11"},
          {"reference": "linux-lowlatency-lib-rust-6.8.0"},
          {"reference": "linux-lowlatency-tools-6.8.0"},
          {"reference": "linux-lowlatency-tools-common"},
          {"reference": "linux-lowlatency-tools-host"},
          {"reference": "linux-modules-6.8.0"},
          {"reference": "linux-modules-extra-6.8.0"},
          {"reference": "linux-modules-ipu6-6.8.0"},
          {"reference": "linux-modules-ivsc-6.8.0"},
          {"reference": "linux-modules-iwlwifi-6.8.0"},
          {"reference": "linux-nvidia"},
          {"reference": "linux-nvidia-6.11"},
          {"reference": "linux-nvidia-6.17"},
          {"reference": "linux-nvidia-lowlatency"},
          {"reference": "linux-nvidia-tegra"},
          {"reference": "linux-oem-6.11"},
          {"reference": "linux-oem-6.14"},
          {"reference": "linux-oem-6.17"},
          {"reference": "linux-oem-6.8-headers-6.8.0"},
          {"reference": "linux-oem-6.8-lib-rust-6.8.0"},
          {"reference": "linux-oem-6.8-tools-6.8.0"},
          {"reference": "linux-oracle-6.14"},
          {"reference": "linux-oracle-6.17"},
          {"reference": "linux-oracle-headers-6.8.0"},
          {"reference": "linux-oracle-tools-6.8.0"},
          {"reference": "linux-raspi-headers-6.8.0"},
          {"reference": "linux-raspi-realtime"},
          {"reference": "linux-raspi-tools-6.8.0"},
          {"reference": "linux-realtime"},
          {"reference": "linux-riscv-6.14"},
          {"reference": "linux-riscv-6.17"},
          {"reference": "linux-riscv-headers-6.8.0"},
          {"reference": "linux-riscv-tools-6.8.0"},
          {"reference": "linux-source-6.8.0"},
          {"reference": "linux-tools-6.8.0"},
          {"reference": "linux-tools-common"},
          {"reference": "linux-tools-host"},
          {"reference": "linux-udebs-aws"},
          {"reference": "linux-udebs-azure"},
          {"reference": "linux-xilinx"}
        ]
      }
    ]
  },
  "Ubuntu Linux-25.10": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "25.10",
        "pkgs": [
          {"reference": "bpftool"},
          {"reference": "linux-aws-cloud-tools-6.17.0"},
          {"reference": "linux-aws-headers-6.17.0"},
          {"reference": "linux-aws-tools-6.17.0"},
          {"reference": "linux-azure-cloud-tools-6.17.0"},
          {"reference": "linux-azure-fde"},
          {"reference": "linux-azure-headers-6.17.0"},
          {"reference": "linux-azure-tools-6.17.0"},
          {"reference": "linux-bpf-dev"},
          {"reference": "linux-buildinfo-6.17.0"},
          {"reference": "linux-cloud-tools-6.17.0"},
          {"reference": "linux-cloud-tools-common"},
          {"reference": "linux-doc"},
          {"reference": "linux-gcp-headers-6.17.0"},
          {"reference": "linux-gcp-tools-6.17.0"},
          {"reference": "linux-headers-6.17.0"},
          {"reference": "linux-image-6.17.0"},
          {"reference": "linux-image-unsigned-6.17.0"},
          {"reference": "linux-lib-rust-6.17.0"},
          {"reference": "linux-libc-dev"},
          {"reference": "linux-modules-6.17.0"},
          {"reference": "linux-modules-extra-6.17.0"},
          {"reference": "linux-modules-ipu6-6.17.0"},
          {"reference": "linux-modules-ipu7-6.17.0"},
          {"reference": "linux-modules-iwlwifi-6.17.0"},
          {"reference": "linux-modules-usbio-6.17.0"},
          {"reference": "linux-modules-vision-6.17.0"},
          {"reference": "linux-oracle-headers-6.17.0"},
          {"reference": "linux-oracle-tools-6.17.0"},
          {"reference": "linux-perf"},
          {"reference": "linux-raspi-headers-6.17.0"},
          {"reference": "linux-raspi-tools-6.17.0"},
          {"reference": "linux-realtime"},
          {"reference": "linux-riscv-headers-6.17.0"},
          {"reference": "linux-riscv-tools-6.17.0"},
          {"reference": "linux-source-6.17.0"},
          {"reference": "linux-tools-6.17.0"},
          {"reference": "linux-tools-common"},
          {"reference": "linux-tools-host"},
          {"reference": "linux-udebs-aws"},
          {"reference": "linux-udebs-aws-64k"},
          {"reference": "linux-udebs-azure"}
        ]
      }
    ]
  },
  "Ubuntu Linux-26.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "26.04",
        "pkgs": [
          {"reference": "linux-azure-fde-cloud-tools-7.0.0"},
          {"reference": "linux-azure-fde-headers-7.0.0"},
          {"reference": "linux-azure-fde-tools-7.0.0"},
          {"reference": "linux-buildinfo-7.0.0"},
          {"reference": "linux-cloud-tools-7.0.0"},
          {"reference": "linux-headers-7.0.0"},
          {"reference": "linux-image-unsigned-7.0.0"},
          {"reference": "linux-lib-rust-7.0.0"},
          {"reference": "linux-modules-7.0.0"},
          {"reference": "linux-tools-7.0.0"},
          {"reference": "linux-udebs-azure-fde"}
        ]
      }
    ]
  }
};

var distro_constraints_values = linux_unpatched::get_distro_constraints(distro_constraints_arr:distro_constraints_array);
if (empty_or_null(distro_constraints_values)) audit(AUDIT_HOST_NOT, 'affected');
var report = linux_unpatched::check_unpatched_constraints(distro_constraints_values:distro_constraints_values);

if (!empty_or_null(report))
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : report
  );
  exit(0);
}
else
{
  audit(AUDIT_HOST_NOT, 'affected');
}