Unity Linux 20.1070e Security Update: kernel (UTSA-2026-005571)

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

include('compat.inc');

if (description)
{
  script_id(300545);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/03/04");

  script_cve_id("CVE-2024-53112");

  script_name(english:"Unity Linux 20.1070e Security Update: kernel (UTSA-2026-005571)");

  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-2026-005571 advisory.

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

    ocfs2: uncache inode which has failed entering the group

    Syzbot has reported the following BUG:

    kernel BUG at fs/ocfs2/uptodate.c:509!
    ...
    Call Trace:
     <TASK>
     ? __die_body+0x5f/0xb0
     ? die+0x9e/0xc0
     ? do_trap+0x15a/0x3a0
     ? ocfs2_set_new_buffer_uptodate+0x145/0x160
     ? do_error_trap+0x1dc/0x2c0
     ? ocfs2_set_new_buffer_uptodate+0x145/0x160
     ? __pfx_do_error_trap+0x10/0x10
     ? handle_invalid_op+0x34/0x40
     ? ocfs2_set_new_buffer_uptodate+0x145/0x160
     ? exc_invalid_op+0x38/0x50
     ? asm_exc_invalid_op+0x1a/0x20
     ? ocfs2_set_new_buffer_uptodate+0x2e/0x160
     ? ocfs2_set_new_buffer_uptodate+0x144/0x160
     ? ocfs2_set_new_buffer_uptodate+0x145/0x160
     ocfs2_group_add+0x39f/0x15a0
     ? __pfx_ocfs2_group_add+0x10/0x10
     ? __pfx_lock_acquire+0x10/0x10
     ? mnt_get_write_access+0x68/0x2b0
     ? __pfx_lock_release+0x10/0x10
     ? rcu_read_lock_any_held+0xb7/0x160
     ? __pfx_rcu_read_lock_any_held+0x10/0x10
     ? smack_log+0x123/0x540
     ? mnt_get_write_access+0x68/0x2b0
     ? mnt_get_write_access+0x68/0x2b0
     ? mnt_get_write_access+0x226/0x2b0
     ocfs2_ioctl+0x65e/0x7d0
     ? __pfx_ocfs2_ioctl+0x10/0x10
     ? smack_file_ioctl+0x29e/0x3a0
     ? __pfx_smack_file_ioctl+0x10/0x10
     ? lockdep_hardirqs_on_prepare+0x43d/0x780
     ? __pfx_lockdep_hardirqs_on_prepare+0x10/0x10
     ? __pfx_ocfs2_ioctl+0x10/0x10
     __se_sys_ioctl+0xfb/0x170
     do_syscall_64+0xf3/0x230
     entry_SYSCALL_64_after_hwframe+0x77/0x7f
    ...
     </TASK>

    When 'ioctl(OCFS2_IOC_GROUP_ADD, ...)' has failed for the particular
    inode in 'ocfs2_verify_group_and_input()', corresponding buffer head
    remains cached and subsequent call to the same 'ioctl()' for the same
    inode issues the BUG() in 'ocfs2_set_new_buffer_uptodate()' (trying
    to cache the same buffer head of that inode). Fix this by uncaching
    the buffer head with 'ocfs2_remove_from_cache()' on error path in
    'ocfs2_group_add()'.

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-2026-005571
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c6089c1c");
  script_set_attribute(attribute:"see_also", value:"https://nvd.nist.gov/vuln/detail/CVE-2024-53112");
  script_set_attribute(attribute:"solution", value:
"Update the affected kernel package.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:N/I:N/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:N/I:N/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-2024-53112");

  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:"2024/12/02");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/03/02");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/03/04");

  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) 2026 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:"^20.1070e([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'UOS Server 20.1070e', '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 && 'sw_64' >!< cpu && 'x86_64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'UOS Server', cpu);


var constraints = [
  {
    'release': '20',
    'sp': '1070e',
    'pkgs': [
      {'reference':'kernel-4.19.90-2601.1.0.0002', 'sp':'1070e', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-4.19.90-2601.1.0.0002', 'sp':'1070e', 'cpu':'amd64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-4.19.90-2601.1.0.0002', 'sp':'1070e', 'cpu':'sw_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-4.19.90-2601.1.0.0002', 'sp':'1070e', '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');
}