Unity Linux 20.1070e Security Update: kernel (UTSA-2026-010910)

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

include('compat.inc');

if (description)
{
  script_id(308422);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/04/21");

  script_cve_id("CVE-2023-53627");

  script_name(english:"Unity Linux 20.1070e Security Update: kernel (UTSA-2026-010910)");

  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-2026-010910 advisory.

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

    scsi: hisi_sas: Grab sas_dev lock when traversing the members of sas_dev.list

    When freeing slots in function slot_complete_v3_hw(), it is possible that
    sas_dev.list is being traversed elsewhere, and it may trigger a NULL
    pointer exception, such as follows:

    ==>cq thread                    ==>scsi_eh_6

                                    ==>scsi_error_handler()
                                      ==>sas_eh_handle_sas_errors()
                                        ==>sas_scsi_find_task()
                                          ==>lldd_abort_task()
    ==>slot_complete_v3_hw()              ==>hisi_sas_abort_task()
      ==>hisi_sas_slot_task_free()          ==>dereg_device_v3_hw()
        ==>list_del_init()                    ==>list_for_each_entry_safe()

    [ 7165.434918] sas: Enter sas_scsi_recover_host busy: 32 failed: 32
    [ 7165.434926] sas: trying to find task 0x00000000769b5ba5
    [ 7165.434927] sas: sas_scsi_find_task: aborting task 0x00000000769b5ba5
    [ 7165.434940] hisi_sas_v3_hw 0000:b4:02.0: slot complete: task(00000000769b5ba5) aborted
    [ 7165.434964] hisi_sas_v3_hw 0000:b4:02.0: slot complete: task(00000000c9f7aa07) ignored
    [ 7165.434965] hisi_sas_v3_hw 0000:b4:02.0: slot complete: task(00000000e2a1cf01) ignored
    [ 7165.434968] Unable to handle kernel NULL pointer dereference at virtual address 0000000000000000
    [ 7165.434972] hisi_sas_v3_hw 0000:b4:02.0: slot complete: task(0000000022d52d93) ignored
    [ 7165.434975] hisi_sas_v3_hw 0000:b4:02.0: slot complete: task(0000000066a7516c) ignored
    [ 7165.434976] Mem abort info:
    [ 7165.434982]   ESR = 0x96000004
    [ 7165.434991]   Exception class = DABT (current EL), IL = 32 bits
    [ 7165.434992]   SET = 0, FnV = 0
    [ 7165.434993]   EA = 0, S1PTW = 0
    [ 7165.434994] Data abort info:
    [ 7165.434994]   ISV = 0, ISS = 0x00000004
    [ 7165.434995]   CM = 0, WnR = 0
    [ 7165.434997] user pgtable: 4k pages, 48-bit VAs, pgdp = 00000000f29543f2
    [ 7165.434998] [0000000000000000] pgd=0000000000000000
    [ 7165.435003] Internal error: Oops: 96000004 [#1] SMP
    [ 7165.439863] Process scsi_eh_6 (pid: 4109, stack limit = 0x00000000c43818d5)
    [ 7165.468862] pstate: 00c00009 (nzcv daif +PAN +UAO)
    [ 7165.473637] pc : dereg_device_v3_hw+0x68/0xa8 [hisi_sas_v3_hw]
    [ 7165.479443] lr : dereg_device_v3_hw+0x2c/0xa8 [hisi_sas_v3_hw]
    [ 7165.485247] sp : ffff00001d623bc0
    [ 7165.488546] x29: ffff00001d623bc0 x28: ffffa027d03b9508
    [ 7165.493835] x27: ffff80278ed50af0 x26: ffffa027dd31e0a8
    [ 7165.499123] x25: ffffa027d9b27f88 x24: ffffa027d9b209f8
    [ 7165.504411] x23: ffffa027c45b0d60 x22: ffff80278ec07c00
    [ 7165.509700] x21: 0000000000000008 x20: ffffa027d9b209f8
    [ 7165.514988] x19: ffffa027d9b27f88 x18: ffffffffffffffff
    [ 7165.520276] x17: 0000000000000000 x16: 0000000000000000
    [ 7165.525564] x15: ffff0000091d9708 x14: ffff0000093b7dc8
    [ 7165.530852] x13: ffff0000093b7a23 x12: 6e7265746e692067
    [ 7165.536140] x11: 0000000000000000 x10: 0000000000000bb0
    [ 7165.541429] x9 : ffff00001d6238f0 x8 : ffffa027d877af00
    [ 7165.546718] x7 : ffffa027d6329600 x6 : ffff7e809f58ca00
    [ 7165.552006] x5 : 0000000000001f8a x4 : 000000000000088e
    [ 7165.557295] x3 : ffffa027d9b27fa8 x2 : 0000000000000000
    [ 7165.562583] x1 : 0000000000000000 x0 : 000000003000188e
    [ 7165.567872] Call trace:
    [ 7165.570309]  dereg_device_v3_hw+0x68/0xa8 [hisi_sas_v3_hw]
    [ 7165.575775]  hisi_sas_abort_task+0x248/0x358 [hisi_sas_main]
    [ 7165.581415]  sas_eh_handle_sas_errors+0x258/0x8e0 [libsas]
    [ 7165.586876]  sas_scsi_recover_host+0x134/0x458 [libsas]
    [ 7165.592082]  scsi_error_handler+0xb4/0x488
    [ 7165.596163]  kthread+0x134/0x138
    [ 7165.599380]  ret_from_fork+0x10/0x18
    [ 7165.602940] Code: d5033e9f b9000040 aa0103e2 eb03003f (f9400021)
    [ 7165.609004] kernel fault(0x1) notification starting on CPU 75
    [ 7165.700728] ---[ end trace fc042cbbea224efc ]---
    [ 7165.705326] Kernel panic - not syncing: Fatal exception

    To fix the issue, grab sas_dev lock when traversing the members of
    sas_dev.list in dereg_device_v3_hw() and hisi_sas_release_tasks() to avoid
    concurrency of adding and deleting member. When
    ---truncated---

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-2026-010910
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?1531fe5d");
  # https://lore.kernel.org/linux-cve-announce/2025100711-CVE-2023-53627-aaa6@gregkh
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?a95f7749");
  script_set_attribute(attribute:"see_also", value:"https://nvd.nist.gov/vuln/detail/CVE-2023-53627");
  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-2023-53627");

  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:"2025/10/07");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/04/20");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/04/21");

  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-5.10.0-75', 'sp':'1070e', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-5.10.0-75', 'sp':'1070e', 'cpu':'amd64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-5.10.0-75', 'sp':'1070e', 'cpu':'sw_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-5.10.0-75', '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');
}