Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-993116)

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

include('compat.inc');

if (description)
{
  script_id(281350);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2025/12/31");

  script_cve_id("CVE-2022-50003");

  script_name(english:"Unity Linux 20.1060a / 20.1070a Security Update: kernel (UTSA-2025-993116)");

  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-2025-993116 advisory.

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

    ice: xsk: prohibit usage of non-balanced queue id

    Fix the following scenario:
    1. ethtool -L $IFACE rx 8 tx 96
    2. xdpsock -q 10 -t -z

    Above refers to a case where user would like to attach XSK socket in
    txonly mode at a queue id that does not have a corresponding Rx queue.
    At this moment ice's XSK logic is tightly bound to act on a queue pair,
    e.g. both Tx and Rx queues at a given queue id are disabled/enabled and
    both of them will get XSK pool assigned, which is broken for the presented
    queue configuration. This results in the splat included at the bottom,
    which is basically an OOB access to Rx ring array.

    To fix this, allow using the ids only in scope of combined queues
    reported by ethtool. However, logic should be rewritten to allow such
    configurations later on, which would end up as a complete rewrite of the
    control path, so let us go with this temporary fix.

    [420160.558008] BUG: kernel NULL pointer dereference, address: 0000000000000082
    [420160.566359] #PF: supervisor read access in kernel mode
    [420160.572657] #PF: error_code(0x0000) - not-present page
    [420160.579002] PGD 0 P4D 0
    [420160.582756] Oops: 0000 [#1] PREEMPT SMP NOPTI
    [420160.588396] CPU: 10 PID: 21232 Comm: xdpsock Tainted: G           OE     5.19.0-rc7+ #10
    [420160.597893] Hardware name: Intel Corporation S2600WFT/S2600WFT, BIOS
    SE5C620.86B.02.01.0008.031920191559 03/19/2019
    [420160.609894] RIP: 0010:ice_xsk_pool_setup+0x44/0x7d0 [ice]
    [420160.616968] Code: f3 48 83 ec 40 48 8b 4f 20 48 8b 3f 65 48 8b 04 25 28 00 00 00 48 89 44 24 38 31 c0
    48 8d 04 ed 00 00 00 00 48 01 c1 48 8b 11 <0f> b7 92 82 00 00 00 48 85 d2 0f 84 2d 75 00 00 48 8d 72 ff 48
    85
    [420160.639421] RSP: 0018:ffffc9002d2afd48 EFLAGS: 00010282
    [420160.646650] RAX: 0000000000000050 RBX: ffff88811d8bdd00 RCX: ffff888112c14ff8
    [420160.655893] RDX: 0000000000000000 RSI: ffff88811d8bdd00 RDI: ffff888109861000
    [420160.665166] RBP: 000000000000000a R08: 000000000000000a R09: 0000000000000000
    [420160.674493] R10: 000000000000889f R11: 0000000000000000 R12: 000000000000000a
    [420160.683833] R13: 000000000000000a R14: 0000000000000000 R15: ffff888117611828
    [420160.693211] FS:  00007fa869fc1f80(0000) GS:ffff8897e0880000(0000) knlGS:0000000000000000
    [420160.703645] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
    [420160.711783] CR2: 0000000000000082 CR3: 00000001d076c001 CR4: 00000000007706e0
    [420160.721399] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
    [420160.731045] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
    [420160.740707] PKRU: 55555554
    [420160.745960] Call Trace:
    [420160.750962]  <TASK>
    [420160.755597]  ? kmalloc_large_node+0x79/0x90
    [420160.762703]  ? __kmalloc_node+0x3f5/0x4b0
    [420160.769341]  xp_assign_dev+0xfd/0x210
    [420160.775661]  ? shmem_file_read_iter+0x29a/0x420
    [420160.782896]  xsk_bind+0x152/0x490
    [420160.788943]  __sys_bind+0xd0/0x100
    [420160.795097]  ? exit_to_user_mode_prepare+0x20/0x120
    [420160.802801]  __x64_sys_bind+0x16/0x20
    [420160.809298]  do_syscall_64+0x38/0x90
    [420160.815741]  entry_SYSCALL_64_after_hwframe+0x63/0xcd
    [420160.823731] RIP: 0033:0x7fa86a0dd2fb
    [420160.830264] Code: c3 66 0f 1f 44 00 00 48 8b 15 69 8b 0c 00 f7 d8 64 89 02 b8 ff ff ff ff eb bc 0f 1f
    44 00 00 f3 0f 1e fa b8 31 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 3d 8b 0c 00 f7 d8 64 89 01
    48
    [420160.855410] RSP: 002b:00007ffc1146f618 EFLAGS: 00000246 ORIG_RAX: 0000000000000031
    [420160.866366] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fa86a0dd2fb
    [420160.876957] RDX: 0000000000000010 RSI: 00007ffc1146f680 RDI: 0000000000000003
    [420160.887604] RBP: 000055d7113a0520 R08: 00007fa868fb8000 R09: 0000000080000000
    [420160.898293] R10: 0000000000008001 R11: 0000000000000246 R12: 000055d7113a04e0
    [420160.909038] R13: 000055d7113a0320 R14: 000000000000000a R15: 0000000000000000
    [420160.919817]  </TASK>
    [420160.925659] Modules linked in: ice(OE) af_packet binfmt_misc
    ---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-2025-993116
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?066f9a61");
  # https://lore.kernel.org/linux-cve-announce/2025061829-CVE-2022-50003-8a4c@gregkh
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?c1ef2cad");
  script_set_attribute(attribute:"see_also", value:"https://nvd.nist.gov/vuln/detail/CVE-2022-50003");
  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-2022-50003");

  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:"2023/11/14");
  script_set_attribute(attribute:"patch_publication_date", value:"2025/12/31");
  script_set_attribute(attribute:"plugin_publication_date", value:"2025/12/31");

  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:"^20.1060a|20.1070a([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'UOS Server 20.1060a / 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': '1060a',
    'pkgs': [
      {'reference':'kernel-5.10.0-46.38', 'sp':'1060a', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-5.10.0-46.38', 'sp':'1060a', 'cpu':'amd64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-5.10.0-46.38', 'sp':'1060a', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE}
    ]
  },
  {
    'release': '20',
    'sp': '1070a',
    'pkgs': [
      {'reference':'kernel-5.10.0-79.5', 'sp':'1070a', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-5.10.0-79.5', 'sp':'1070a', 'cpu':'amd64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-5.10.0-79.5', 'sp':'1070a', 'cpu':'loongarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-5.10.0-79.5', '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');
}