Linux Distros Unpatched Vulnerability : CVE-2025-22093

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

include('compat.inc');

if (description)
{
  script_id(246977);
  script_version("1.10");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/05/21");

  script_cve_id("CVE-2025-22093");

  script_name(english:"Linux Distros Unpatched Vulnerability : CVE-2025-22093");

  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.

  - In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: avoid NPD when ASIC
    does not support DMUB ctx->dmub_srv will de NULL if the ASIC does not support DMUB, which is tested in
    dm_dmub_sw_init. However, it will be dereferenced in dmub_hw_lock_mgr_cmd if should_use_dmub_lock returns
    true. This has been the case since dmub support has been added for PSR1. Fix this by checking for dmub_srv
    in should_use_dmub_lock. [ 37.440832] BUG: kernel NULL pointer dereference, address: 0000000000000058 [
    37.447808] #PF: supervisor read access in kernel mode [ 37.452959] #PF: error_code(0x0000) - not-present
    page [ 37.458112] PGD 0 P4D 0 [ 37.460662] Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI [ 37.465553] CPU: 2
    UID: 1000 PID: 1745 Comm: DrmThread Not tainted 6.14.0-rc1-00003-gd62e938120f0 #23
    99720e1cb1e0fc4773b8513150932a07de3c6e88 [ 37.478324] Hardware name: Google Morphius/Morphius, BIOS
    Google_Morphius.13434.858.0 10/26/2023 [ 37.487103] RIP: 0010:dmub_hw_lock_mgr_cmd+0x77/0xb0 [ 37.492074]
    Code: 44 24 0e 00 00 00 00 48 c7 04 24 45 00 00 0c 40 88 74 24 0d 0f b6 02 88 44 24 0c 8b 01 89 44 24 08
    85 f6 75 05 c6 44 24 0e 01 <48> 8b 7f 58 48 89 e6 ba 01 00 00 00 e8 08 3c 2a 00 65 48 8b 04 5 [ 37.510822]
    RSP: 0018:ffff969442853300 EFLAGS: 00010202 [ 37.516052] RAX: 0000000000000000 RBX: ffff92db03000000 RCX:
    ffff969442853358 [ 37.523185] RDX: ffff969442853368 RSI: 0000000000000001 RDI: 0000000000000000 [
    37.530322] RBP: 0000000000000001 R08: 00000000000004a7 R09: 00000000000004a5 [ 37.537453] R10:
    0000000000000476 R11: 0000000000000062 R12: ffff92db0ade8000 [ 37.544589] R13: ffff92da01180ae0 R14:
    ffff92da011802a8 R15: ffff92db03000000 [ 37.551725] FS: 0000784a9cdfc6c0(0000) GS:ffff92db2af00000(0000)
    knlGS:0000000000000000 [ 37.559814] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 37.565562] CR2:
    0000000000000058 CR3: 0000000112b1c000 CR4: 00000000003506f0 [ 37.572697] Call Trace: [ 37.575152] <TASK>
    [ 37.577258] ? __die_body+0x66/0xb0 [ 37.580756] ? page_fault_oops+0x3e7/0x4a0 [ 37.584861] ?
    exc_page_fault+0x3e/0xe0 [ 37.588706] ? exc_page_fault+0x5c/0xe0 [ 37.592550] ?
    asm_exc_page_fault+0x22/0x30 [ 37.596742] ? dmub_hw_lock_mgr_cmd+0x77/0xb0 [ 37.601107]
    dcn10_cursor_lock+0x1e1/0x240 [ 37.605211] program_cursor_attributes+0x81/0x190 [ 37.609923]
    commit_planes_for_stream+0x998/0x1ef0 [ 37.614722] update_planes_and_stream_v2+0x41e/0x5c0 [ 37.619703]
    dc_update_planes_and_stream+0x78/0x140 [ 37.624588] amdgpu_dm_atomic_commit_tail+0x4362/0x49f0 [
    37.629832] ? srso_return_thunk+0x5/0x5f [ 37.633847] ? mark_held_locks+0x6d/0xd0 [ 37.637774] ?
    _raw_spin_unlock_irq+0x24/0x50 [ 37.642135] ? srso_return_thunk+0x5/0x5f [ 37.646148] ?
    lockdep_hardirqs_on+0x95/0x150 [ 37.650510] ? srso_return_thunk+0x5/0x5f [ 37.654522] ?
    _raw_spin_unlock_irq+0x2f/0x50 [ 37.658883] ? srso_return_thunk+0x5/0x5f [ 37.662897] ?
    wait_for_common+0x186/0x1c0 [ 37.666998] ? srso_return_thunk+0x5/0x5f [ 37.671009] ?
    drm_crtc_next_vblank_start+0xc3/0x170 [ 37.675983] commit_tail+0xf5/0x1c0 [ 37.679478]
    drm_atomic_helper_commit+0x2a2/0x2b0 [ 37.684186] drm_atomic_commit+0xd6/0x100 [ 37.688199] ?
    __cfi___drm_printfn_info+0x10/0x10 [ 37.692911] drm_atomic_helper_update_plane+0xe5/0x130 [ 37.698054]
    drm_mode_cursor_common+0x501/0x670 [ 37.702600] ? __cfi_drm_mode_cursor_ioctl+0x10/0x10 [ 37.707572]
    drm_mode_cursor_ioctl+0x48/0x70 [ 37.711851] drm_ioctl_kernel+0xf2/0x150 [ 37.715781]
    drm_ioctl+0x363/0x590 [ 37.719189] ? __cfi_drm_mode_cursor_ioctl+0x10/0x10 [ 37.724165]
    amdgpu_drm_ioctl+0x41/0x80 [ 37.728013] __se_sys_ioctl+0x7f/0xd0 [ 37.731685] do_syscall_64+0x87/0x100 [
    37.735355] ? vma_end_read+0x12/0xe0 [ 37.739024] ? srso_return_thunk+0x5/0x5f [ 37.743041] ?
    find_held_lock+0x47/0xf0 [ 37.746884] ? vma_end_read+0x12/0xe0 [ 37.750552] ? srso_return_thunk+0x5/0
    ---truncated--- (CVE-2025-22093)

Note that Nessus relies on the presence of the package as reported by the vendor.");
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  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:S/C:N/I:P/A:N");
  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-2025-22093");

  script_set_attribute(attribute:"exploitability_ease", value:"No known exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"false");
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  script_set_attribute(attribute:"vuln_publication_date", value:"2025/04/16");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/08/09");

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  script_family(english:"Misc.");

  script_copyright(english:"This script is Copyright (C) 2025-2026 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info2.nasl", "set_linux_os_id.nasl");
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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 = {
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    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "16.04",
        "pkgs": [
          {"reference": "linux-hwe-edge"}
        ]
      }
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  "Ubuntu Linux-18.04": {
    "package_manager": "dpkg-l",
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        "release": "18.04",
        "pkgs": [
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          {"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"}
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          {"reference": "linux-riscv-tools-5.4.0"},
          {"reference": "linux-tools-5.4.0"},
          {"reference": "linux-tools-5.6.0"},
          {"reference": "linux-udebs-generic"},
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          {"reference": "linux-aws-6.5"},
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          {"reference": "linux-azure-6.2"},
          {"reference": "linux-azure-6.5"},
          {"reference": "linux-azure-fde-5.19"},
          {"reference": "linux-azure-fde-6.2"},
          {"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-gcp-5.19"},
          {"reference": "linux-gcp-6.2"},
          {"reference": "linux-gcp-6.5"},
          {"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-image-5.15.0"},
          {"reference": "linux-image-unsigned-5.17.0"},
          {"reference": "linux-intel-iot-realtime"},
          {"reference": "linux-lowlatency-hwe-5.19"},
          {"reference": "linux-lowlatency-hwe-6.2"},
          {"reference": "linux-lowlatency-hwe-6.5"},
          {"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-6.2"},
          {"reference": "linux-nvidia-6.5"},
          {"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-realtime"},
          {"reference": "linux-riscv-5.19"},
          {"reference": "linux-riscv-6.5"},
          {"reference": "linux-riscv-headers-5.15.0"},
          {"reference": "linux-riscv-tools-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"}
        ]
      }
    ]
  },
  "Ubuntu Linux-24.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "24.04",
        "pkgs": [
          {"reference": "linux-azure-fde-6.17"},
          {"reference": "linux-raspi-realtime"},
          {"reference": "linux-realtime"}
        ]
      }
    ]
  },
  "Ubuntu Linux-25.10": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "25.10",
        "pkgs": [
          {"reference": "linux-azure-fde"}
        ]
      }
    ]
  },
  "Ubuntu Linux-25.04": {
    "package_manager": "dpkg-l",
    "constraints": [
      {
        "release": "25.04",
        "pkgs": [
          {"reference": "linux-xilinx"}
        ]
      }
    ]
  }
};

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_NOTE,
      extra      : report
  );
  exit(0);
}
else
{
  audit(AUDIT_HOST_NOT, 'affected');
}