Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013830)

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

include('compat.inc');

if (description)
{
  script_id(309267);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/04/22");

  script_cve_id("CVE-2024-26881");

  script_name(english:"Unity Linux 20.1070a Security Update: kernel (UTSA-2026-013830)");

  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-2026-013830 advisory.

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

    net: hns3: fix kernel crash when 1588 is received on HIP08 devices

    The HIP08 devices does not register the ptp devices, so the
    hdev->ptp is NULL, but the hardware can receive 1588 messages,
    and set the HNS3_RXD_TS_VLD_B bit, so, if match this case, the
    access of hdev->ptp->flags will cause a kernel crash:

    [ 5888.946472] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000018
    [ 5888.946475] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000018
    ...
    [ 5889.266118] pc : hclge_ptp_get_rx_hwts+0x40/0x170 [hclge]
    [ 5889.272612] lr : hclge_ptp_get_rx_hwts+0x34/0x170 [hclge]
    [ 5889.279101] sp : ffff800012c3bc50
    [ 5889.283516] x29: ffff800012c3bc50 x28: ffff2040002be040
    [ 5889.289927] x27: ffff800009116484 x26: 0000000080007500
    [ 5889.296333] x25: 0000000000000000 x24: ffff204001c6f000
    [ 5889.302738] x23: ffff204144f53c00 x22: 0000000000000000
    [ 5889.309134] x21: 0000000000000000 x20: ffff204004220080
    [ 5889.315520] x19: ffff204144f53c00 x18: 0000000000000000
    [ 5889.321897] x17: 0000000000000000 x16: 0000000000000000
    [ 5889.328263] x15: 0000004000140ec8 x14: 0000000000000000
    [ 5889.334617] x13: 0000000000000000 x12: 00000000010011df
    [ 5889.340965] x11: bbfeff4d22000000 x10: 0000000000000000
    [ 5889.347303] x9 : ffff800009402124 x8 : 0200f78811dfbb4d
    [ 5889.353637] x7 : 2200000000191b01 x6 : ffff208002a7d480
    [ 5889.359959] x5 : 0000000000000000 x4 : 0000000000000000
    [ 5889.366271] x3 : 0000000000000000 x2 : 0000000000000000
    [ 5889.372567] x1 : 0000000000000000 x0 : ffff20400095c080
    [ 5889.378857] Call trace:
    [ 5889.382285] hclge_ptp_get_rx_hwts+0x40/0x170 [hclge]
    [ 5889.388304] hns3_handle_bdinfo+0x324/0x410 [hns3]
    [ 5889.394055] hns3_handle_rx_bd+0x60/0x150 [hns3]
    [ 5889.399624] hns3_clean_rx_ring+0x84/0x170 [hns3]
    [ 5889.405270] hns3_nic_common_poll+0xa8/0x220 [hns3]
    [ 5889.411084] napi_poll+0xcc/0x264
    [ 5889.415329] net_rx_action+0xd4/0x21c
    [ 5889.419911] __do_softirq+0x130/0x358
    [ 5889.424484] irq_exit+0x134/0x154
    [ 5889.428700] __handle_domain_irq+0x88/0xf0
    [ 5889.433684] gic_handle_irq+0x78/0x2c0
    [ 5889.438319] el1_irq+0xb8/0x140
    [ 5889.442354] arch_cpu_idle+0x18/0x40
    [ 5889.446816] default_idle_call+0x5c/0x1c0
    [ 5889.451714] cpuidle_idle_call+0x174/0x1b0
    [ 5889.456692] do_idle+0xc8/0x160
    [ 5889.460717] cpu_startup_entry+0x30/0xfc
    [ 5889.465523] secondary_start_kernel+0x158/0x1ec
    [ 5889.470936] Code: 97ffab78 f9411c14 91408294 f9457284 (f9400c80)
    [ 5889.477950] SMP: stopping secondary CPUs
    [ 5890.514626] SMP: failed to stop secondary CPUs 0-69,71-95
    [ 5890.522951] Starting crashdump kernel...

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-2026-013830
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?e3762d2c");
  # https://lore.kernel.org/linux-cve-announce/2024041740-CVE-2024-26881-ffd3@gregkh
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?bc5e2000");
  script_set_attribute(attribute:"see_also", value:"https://nvd.nist.gov/vuln/detail/CVE-2024-26881");
  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-2024-26881");

  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:"2024/04/12");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/04/22");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/04/22");

  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:"^20.1070a([^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-5.10.0-75', 'sp':'1070a', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-5.10.0-75', 'sp':'1070a', 'cpu':'amd64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-5.10.0-75', 'sp':'1070a', 'cpu':'loongarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-5.10.0-75', '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');
}