AlmaLinux 9.2 [TuxCare] Security Update: bpftool / kernel / kernel-abi-stablelists / kernel-core / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1781347338)

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

include('compat.inc');

if (description)
{
  script_id(360826);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/01");

  script_cve_id(
    "CVE-2022-49350",
    "CVE-2022-50201",
    "CVE-2022-50246",
    "CVE-2022-50312",
    "CVE-2022-50494",
    "CVE-2022-50510",
    "CVE-2022-50578",
    "CVE-2022-50883",
    "CVE-2023-52703",
    "CVE-2023-52795",
    "CVE-2023-52798",
    "CVE-2023-52814",
    "CVE-2023-52851",
    "CVE-2023-52942",
    "CVE-2023-52974",
    "CVE-2023-52996",
    "CVE-2023-53051",
    "CVE-2023-53058",
    "CVE-2023-53073",
    "CVE-2023-53078",
    "CVE-2023-53095",
    "CVE-2023-53102",
    "CVE-2023-53120",
    "CVE-2023-53275",
    "CVE-2023-53334",
    "CVE-2023-53335",
    "CVE-2023-53408",
    "CVE-2023-53546",
    "CVE-2023-53549",
    "CVE-2023-53598",
    "CVE-2023-53605",
    "CVE-2023-53612",
    "CVE-2023-54106",
    "CVE-2023-54322",
    "CVE-2024-26742",
    "CVE-2024-26843",
    "CVE-2024-27012",
    "CVE-2024-27013",
    "CVE-2024-27436",
    "CVE-2024-36920",
    "CVE-2024-41098",
    "CVE-2024-43879",
    "CVE-2024-46783",
    "CVE-2024-46830",
    "CVE-2024-47696",
    "CVE-2024-50003",
    "CVE-2024-56679",
    "CVE-2024-56726",
    "CVE-2024-57897",
    "CVE-2025-21758",
    "CVE-2025-21759",
    "CVE-2025-21763",
    "CVE-2025-21764",
    "CVE-2025-21765",
    "CVE-2025-21766",
    "CVE-2025-21975",
    "CVE-2025-22008",
    "CVE-2025-37852",
    "CVE-2025-37949",
    "CVE-2025-38512",
    "CVE-2026-23111",
    "CVE-2026-23286",
    "CVE-2026-23304",
    "CVE-2026-23307",
    "CVE-2026-31408",
    "CVE-2026-31590",
    "CVE-2026-43026",
    "CVE-2026-43035",
    "CVE-2026-43036",
    "CVE-2026-43043",
    "CVE-2026-43068",
    "CVE-2026-43079",
    "CVE-2026-43080",
    "CVE-2026-43085",
    "CVE-2026-43107",
    "CVE-2026-43123",
    "CVE-2026-43124",
    "CVE-2026-43128",
    "CVE-2026-43132",
    "CVE-2026-43167",
    "CVE-2026-43216",
    "CVE-2026-43251",
    "CVE-2026-43303",
    "CVE-2026-43315",
    "CVE-2026-43381",
    "CVE-2026-43411",
    "CVE-2026-43425",
    "CVE-2026-43453"
  );
  script_xref(name:"CLSA", value:"2026:1781347338");

  script_name(english:"AlmaLinux 9.2 [TuxCare] Security Update: bpftool / kernel / kernel-abi-stablelists / kernel-core / etc Multiple Vulnerabilities (ALMALINUX9.2:CLSA-2026:1781347338)");

  script_set_attribute(attribute:"synopsis", value:
"The AlmaLinux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The AlmaLinux 9.2 host has packages installed that are affected by multiple vulnerabilities as referenced in the TuxCare
ALMALINUX9.2:CLSA-2026:1781347338 advisory.

  - In the Linux kernel, the following vulnerability has been resolved: net: mdio: unexport __init-annotated
    mdio_bus_init() EXPORT_SYMBOL and __init is a bad combination because the .init.text section is freed up
    after the initialization. Hence, modules cannot use symbols annotated __init. The access to a freed symbol
    may end up with kernel panic. modpost used to detect it, but it has been broken for a decade. Recently, I
    fixed modpost so it started to warn it again, then this showed up in linux-next builds. There are two ways
    to fix it: - Remove __init - Remove EXPORT_SYMBOL I chose the latter for this case because the only in-
    tree call-site, drivers/net/phy/phy_device.c is never compiled as modular. (CONFIG_PHYLIB is boolean)
    (CVE-2022-49350)

  - In the Linux kernel, the following vulnerability has been resolved: selinux: fix memleak in
    security_read_state_kernel() In this function, it directly returns the result of __security_read_policy
    without freeing the allocated memory in *data, cause memory leak issue, so free the memory if
    __security_read_policy failed. [PM: subject line tweak] (CVE-2022-50201)

  - In the Linux kernel, the following vulnerability has been resolved: usb: typec: tcpci: fix of node
    refcount leak in tcpci_register_port() I got the following report while doing device(mt6370-tcpc) load
    test with CONFIG_OF_UNITTEST and CONFIG_OF_DYNAMIC enabled: OF: ERROR: memory leak, expected refcount 1
    instead of 2, of_node_get()/of_node_put() unbalanced - destroy cset entry: attach overlay node
    /i2c/pmic@34/tcpc/connector The 'fwnode' set in tcpci_parse_config() which is called in
    tcpci_register_port(), its node refcount is increased in device_get_named_child_node(). It needs be put
    while exiting, so call fwnode_handle_put() in the error path of tcpci_register_port() and in
    tcpci_unregister_port() to avoid leak. (CVE-2022-50246)

  - In the Linux kernel, the following vulnerability has been resolved: drivers: serial: jsm: fix some leaks
    in probe This error path needs to unwind instead of just returning directly. (CVE-2022-50312)

  - In the Linux kernel, the following vulnerability has been resolved: thermal: intel_powerclamp: Use
    get_cpu() instead of smp_processor_id() to avoid crash When CPU 0 is offline and intel_powerclamp is used
    to inject idle, it generates kernel BUG: BUG: using smp_processor_id() in preemptible [00000000] code:
    bash/15687 caller is debug_smp_processor_id+0x17/0x20 CPU: 4 PID: 15687 Comm: bash Not tainted 5.19.0-rc7+
    #57 Call Trace: <TASK> dump_stack_lvl+0x49/0x63 dump_stack+0x10/0x16 check_preemption_disabled+0xdd/0xe0
    debug_smp_processor_id+0x17/0x20 powerclamp_set_cur_state+0x7f/0xf9 [intel_powerclamp] ... ... Here CPU 0
    is the control CPU by default and changed to the current CPU, if CPU 0 offlined. This check has to be
    performed under cpus_read_lock(), hence the above warning. Use get_cpu() instead of smp_processor_id() to
    avoid this BUG. [ rjw: Subject edits ] (CVE-2022-50494)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  # https://security.tuxcare.com/csaf/v2/els_os/almalinux9.2esu/advisories/2026/clsa-2026_1781347338.json
  script_set_attribute(attribute:"see_also", value:"http://www.nessus.org/u?b692b298");
  script_set_attribute(attribute:"see_also", value:"https://cve.tuxcare.com/els/releases/CLSA-2026:1781347338");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages based on the guidance in TuxCare advisory ALMALINUX9.2:CLSA-2026:1781347338.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:S/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:POC/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H");
  script_set_cvss3_temporal_vector("CVSS:3.0/E:P/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2026-43128");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"vendor_severity", value:"Important");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/07/21");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/06/13");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/01");

  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:"Alma 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/OS/extended-third-party", "Host/local_checks_enabled", "Host/AlmaLinux/release", "Host/AlmaLinux/rpm-list", "Host/cpu");

  exit(0);
}
include('rpm2.inc');

var third_party_support = get_kb_item('Host/OS/extended-third-party');
if (empty_or_null(third_party_support) || third_party_support != 'TuxCare') exit(0, 'TuxCare support not enabled.');

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) || 'AlmaLinux' >!< os_product) audit(AUDIT_OS_NOT, 'AlmaLinux');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'AlmaLinux');
if (! preg(pattern:"^9.2([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'AlmaLinux 9.2', 'AlmaLinux ' + os_version);

if (!get_kb_item('Host/AlmaLinux/rpm-list')) audit(AUDIT_PACKAGE_LIST_MISSING);

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if (cpu !~ "^i[3-6]86$" && 'x86_64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'AlmaLinux', cpu);


var constraints = [
  {
    'release': '9',
    'sp': '2',
    'pkgs': [
      {'reference':'bpftool-7.0.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-abi-stablelists-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-core-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-cross-headers-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-core-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-devel-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-devel-matched-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-modules-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-modules-core-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-modules-extra-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-modules-internal-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-modules-partner-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-uki-virt-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-devel-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-devel-matched-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-headers-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-ipaclones-internal-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-modules-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-modules-core-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-modules-extra-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-modules-internal-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-modules-partner-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-selftests-internal-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-libs-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-libs-devel-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-uki-virt-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libbpf-1.0.0-2.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'i686', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
      {'reference':'libbpf-1.0.0-2.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
      {'reference':'libbpf-devel-1.0.0-2.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'i686', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
      {'reference':'libbpf-devel-1.0.0-2.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
      {'reference':'libbpf-static-1.0.0-2.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'i686', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
      {'reference':'libbpf-static-1.0.0-2.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE, 'epoch':'2'},
      {'reference':'perf-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-perf-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rtla-5.14.0-284.1101.el9_2.tuxcare.11.els4', 'sp':'2', 'cpu':'x86_64', 'el_string':'el9_2', '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, 'bpftool / kernel / kernel-abi-stablelists / kernel-core / etc');
}