Unity Linux 20.1070a Security Update: kernel (UTSA-2025-400750)

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

include('compat.inc');

if (description)
{
  script_id(267466);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/10/15");

  script_cve_id("CVE-2024-53227");

  script_name(english:"Unity Linux 20.1070a Security Update: kernel (UTSA-2025-400750)");

  script_set_attribute(attribute:"synopsis", value:
"The Unity Linux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the
UTSA-2025-400750 advisory.

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

    scsi: bfa: Fix use-after-free in bfad_im_module_exit()

    BUG: KASAN: slab-use-after-free in __lock_acquire+0x2aca/0x3a20
    Read of size 8 at addr ffff8881082d80c8 by task modprobe/25303

    Call Trace:
     <TASK>
     dump_stack_lvl+0x95/0xe0
     print_report+0xcb/0x620
     kasan_report+0xbd/0xf0
     __lock_acquire+0x2aca/0x3a20
     lock_acquire+0x19b/0x520
     _raw_spin_lock+0x2b/0x40
     attribute_container_unregister+0x30/0x160
     fc_release_transport+0x19/0x90 [scsi_transport_fc]
     bfad_im_module_exit+0x23/0x60 [bfa]
     bfad_init+0xdb/0xff0 [bfa]
     do_one_initcall+0xdc/0x550
     do_init_module+0x22d/0x6b0
     load_module+0x4e96/0x5ff0
     init_module_from_file+0xcd/0x130
     idempotent_init_module+0x330/0x620
     __x64_sys_finit_module+0xb3/0x110
     do_syscall_64+0xc1/0x1d0
     entry_SYSCALL_64_after_hwframe+0x77/0x7f
     </TASK>

    Allocated by task 25303:
     kasan_save_stack+0x24/0x50
     kasan_save_track+0x14/0x30
     __kasan_kmalloc+0x7f/0x90
     fc_attach_transport+0x4f/0x4740 [scsi_transport_fc]
     bfad_im_module_init+0x17/0x80 [bfa]
     bfad_init+0x23/0xff0 [bfa]
     do_one_initcall+0xdc/0x550
     do_init_module+0x22d/0x6b0
     load_module+0x4e96/0x5ff0
     init_module_from_file+0xcd/0x130
     idempotent_init_module+0x330/0x620
     __x64_sys_finit_module+0xb3/0x110
     do_syscall_64+0xc1/0x1d0
     entry_SYSCALL_64_after_hwframe+0x77/0x7f

    Freed by task 25303:
     kasan_save_stack+0x24/0x50
     kasan_save_track+0x14/0x30
     kasan_save_free_info+0x3b/0x60
     __kasan_slab_free+0x38/0x50
     kfree+0x212/0x480
     bfad_im_module_init+0x7e/0x80 [bfa]
     bfad_init+0x23/0xff0 [bfa]
     do_one_initcall+0xdc/0x550
     do_init_module+0x22d/0x6b0
     load_module+0x4e96/0x5ff0
     init_module_from_file+0xcd/0x130
     idempotent_init_module+0x330/0x620
     __x64_sys_finit_module+0xb3/0x110
     do_syscall_64+0xc1/0x1d0
     entry_SYSCALL_64_after_hwframe+0x77/0x7f

    Above issue happens as follows:

    bfad_init
      error = bfad_im_module_init()
        fc_release_transport(bfad_im_scsi_transport_template);
      if (error)
        goto ext;

    ext:
      bfad_im_module_exit();
        fc_release_transport(bfad_im_scsi_transport_template);
        --> Trigger double release

    Don't call bfad_im_module_exit() if bfad_im_module_init() failed.

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.");
  # https://src.uniontech.com/#/security_advisory_detail?utsa_id=UTSA-2025-400750
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?0b6d2952");
  script_set_attribute(attribute:"see_also", value:"https://nvd.nist.gov/vuln/detail/CVE-2024-53227");
  script_set_attribute(attribute:"solution", value:
"Update the affected kernel package.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:U/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2024-53227");

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

  script_set_attribute(attribute:"vuln_publication_date", value:"2024/12/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/07/08");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/10/07");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Unity Linux Local Security Checks");

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

  script_dependencies("ssh_get_info2.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/UOS-Server/release", "Host/UOS-Server/rpm-list", "Host/cpu");

  exit(0);
}
include('rpm2.inc');

if (!get_kb_item('Host/local_checks_enabled')) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);
var os_product = get_kb_item('installed_os/local/SSH/0/product');
if (isnull(os_product) || 'UOS Server' >!< os_product) audit(AUDIT_OS_NOT, 'UOS Server');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'UOS Server');
if (! preg(pattern:"^20.1070a([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'UOS Server 20.1070a', 'UOS Server ' + os_version);

if (!get_kb_item('Host/UOS-Server/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('aarch64' >!< cpu && 'amd64' >!< cpu && 'loongarch64' >!< cpu && 'x86_64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'UOS Server', cpu);


var constraints = [
  {
    'release': '20',
    'sp': '1070a',
    'pkgs': [
      {'reference':'kernel-5.10.0-74.12', 'sp':'1070a', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-5.10.0-74.12', 'sp':'1070a', 'cpu':'amd64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-5.10.0-74.12', 'sp':'1070a', 'cpu':'loongarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-5.10.0-74.12', 'sp':'1070a', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE}
    ]
  }
];

var os_release = get_one_kb_item('installed_os/local/SSH/0/release');
var os_sp = get_one_kb_item('Host/*/minor_release');

var flag = 0;
var reference;
var sp;
var _cpu;
var el_string;
var rpm_spec_vers_cmp;
var epoch;
var allowmaj;
var exists_check;
var cves;
foreach var constraint ( constraints ) {
  # Check that the target release is equal to the affected release
  if (!empty_or_null(constraint['release'])){
    if (constraint['release'] != os_release) continue;
  }
  if (!empty_or_null(constraint['sp'])){
    if (constraint['sp'] != os_sp) continue;
  }
  foreach var pkg ( constraint['pkgs'] ) {
    reference = NULL;
    sp = NULL;
    _cpu = NULL;
    el_string = NULL;
    rpm_spec_vers_cmp = NULL;
    epoch = NULL;
    allowmaj = NULL;
    exists_check = NULL;
    cves = NULL;
    if (!empty_or_null(pkg['reference'])) reference = pkg['reference'];
    if (!empty_or_null(pkg['sp'])) sp = pkg['sp'];
    if (!empty_or_null(pkg['cpu'])) _cpu = pkg['cpu'];
    if (!empty_or_null(pkg['el_string'])) el_string = pkg['el_string'];
    if (!empty_or_null(pkg['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = pkg['rpm_spec_vers_cmp'];
    if (!empty_or_null(pkg['epoch'])) epoch = pkg['epoch'];
    if (!empty_or_null(pkg['allowmaj'])) allowmaj = pkg['allowmaj'];
    if (!empty_or_null(pkg['exists_check'])) exists_check = pkg['exists_check'];
    if (!empty_or_null(pkg['cves'])) cves = pkg['cves'];
    if (reference &&
        ## (no known rpm to check OR known rpm_exists)
        (!exists_check || rpm_exists(rpm:exists_check)) &&
        rpm_check(sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj, cves:cves)) flag++;
  }
}


if (flag)
{
  security_report_v4(
      port       : 0,
      severity   : SECURITY_WARNING,
      extra      : rpm_report_get()
  );
  exit(0);
}
else
{
  var tested = pkg_tests_get();
  if (tested) audit(AUDIT_PACKAGE_NOT_AFFECTED, tested);
  else audit(AUDIT_PACKAGE_NOT_INSTALLED, 'kernel');
}