Unity Linux 20.1070e Security Update: kernel (UTSA-2025-986918)

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

include('compat.inc');

if (description)
{
  script_id(268986);
  script_version("1.2");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/10/15");

  script_cve_id("CVE-2022-48728");

  script_name(english:"Unity Linux 20.1070e Security Update: kernel (UTSA-2025-986918)");

  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-2025-986918 advisory.

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

    IB/hfi1: Fix AIP early init panic

    An early failure in hfi1_ipoib_setup_rn() can lead to the following panic:

      BUG: unable to handle kernel NULL pointer dereference at 00000000000001b0
      PGD 0 P4D 0
      Oops: 0002 [#1] SMP NOPTI
      Workqueue: events work_for_cpu_fn
      RIP: 0010:try_to_grab_pending+0x2b/0x140
      Code: 1f 44 00 00 41 55 41 54 55 48 89 d5 53 48 89 fb 9c 58 0f 1f 44 00 00 48 89 c2 fa 66 0f 1f 44 00 00
    48 89 55 00 40 84 f6 75 77 <f0> 48 0f ba 2b 00 72 09 31 c0 5b 5d 41 5c 41 5d c3 48 89 df e8 6c
      RSP: 0018:ffffb6b3cf7cfa48 EFLAGS: 00010046
      RAX: 0000000000000246 RBX: 00000000000001b0 RCX: 0000000000000000
      RDX: 0000000000000246 RSI: 0000000000000000 RDI: 00000000000001b0
      RBP: ffffb6b3cf7cfa70 R08: 0000000000000f09 R09: 0000000000000001
      R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
      R13: ffffb6b3cf7cfa90 R14: ffffffff9b2fbfc0 R15: ffff8a4fdf244690
      FS:  0000000000000000(0000) GS:ffff8a527f400000(0000) knlGS:0000000000000000
      CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
      CR2: 00000000000001b0 CR3: 00000017e2410003 CR4: 00000000007706f0
      DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
      DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
      PKRU: 55555554
      Call Trace:
       __cancel_work_timer+0x42/0x190
       ? dev_printk_emit+0x4e/0x70
       iowait_cancel_work+0x15/0x30 [hfi1]
       hfi1_ipoib_txreq_deinit+0x5a/0x220 [hfi1]
       ? dev_err+0x6c/0x90
       hfi1_ipoib_netdev_dtor+0x15/0x30 [hfi1]
       hfi1_ipoib_setup_rn+0x10e/0x150 [hfi1]
       rdma_init_netdev+0x5a/0x80 [ib_core]
       ? hfi1_ipoib_free_rdma_netdev+0x20/0x20 [hfi1]
       ipoib_intf_init+0x6c/0x350 [ib_ipoib]
       ipoib_intf_alloc+0x5c/0xc0 [ib_ipoib]
       ipoib_add_one+0xbe/0x300 [ib_ipoib]
       add_client_context+0x12c/0x1a0 [ib_core]
       enable_device_and_get+0xdc/0x1d0 [ib_core]
       ib_register_device+0x572/0x6b0 [ib_core]
       rvt_register_device+0x11b/0x220 [rdmavt]
       hfi1_register_ib_device+0x6b4/0x770 [hfi1]
       do_init_one.isra.20+0x3e3/0x680 [hfi1]
       local_pci_probe+0x41/0x90
       work_for_cpu_fn+0x16/0x20
       process_one_work+0x1a7/0x360
       ? create_worker+0x1a0/0x1a0
       worker_thread+0x1cf/0x390
       ? create_worker+0x1a0/0x1a0
       kthread+0x116/0x130
       ? kthread_flush_work_fn+0x10/0x10
       ret_from_fork+0x1f/0x40

    The panic happens in hfi1_ipoib_txreq_deinit() because there is a NULL
    deref when hfi1_ipoib_netdev_dtor() is called in this error case.

    hfi1_ipoib_txreq_init() and hfi1_ipoib_rxq_init() are self unwinding so
    fix by adjusting the error paths accordingly.

    Other changes:
    - hfi1_ipoib_free_rdma_netdev() is deleted including the free_netdev()
      since the netdev core code deletes calls free_netdev()
    - The switch to the accelerated entrances is moved to the success path.

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-2025-986918
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c45aefda");
  # https://lore.kernel.org/linux-cve-announce/2024062058-CVE-2022-48728-caf6@gregkh
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?74ea83b2");
  script_set_attribute(attribute:"see_also", value:"https://nvd.nist.gov/vuln/detail/CVE-2022-48728");
  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-2022-48728");

  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:"2022/03/08");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/09/23");
  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:"^20.1070e([^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 && 'x86_64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'UOS Server', cpu);


var constraints = [
  {
    'release': '20',
    'sp': '1070e',
    'pkgs': [
      {'reference':'kernel-5.10.0-74.16', 'sp':'1070e', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-5.10.0-74.16', 'sp':'1070e', 'cpu':'amd64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-5.10.0-74.16', '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');
}