Oracle Linux 10 : kernel (ELSA-2026-83207)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Oracle Linux Security Advisory ELSA-2026-83207.
##

include('compat.inc');

if (description)
{
  script_id(366667);
  script_version("1.1");
  script_set_attribute(attribute:"plugin_modification_date", value:"2026/10/16");

  script_cve_id(
    "CVE-2026-45859",
    "CVE-2026-46319",
    "CVE-2026-53011",
    "CVE-2026-63899",
    "CVE-2026-63974",
    "CVE-2026-64030",
    "CVE-2026-64032",
    "CVE-2026-64162",
    "CVE-2026-68140",
    "CVE-2026-68377",
    "CVE-2026-72262",
    "CVE-2026-74574",
    "CVE-2026-74641",
    "CVE-2026-80985",
    "CVE-2026-89526",
    "CVE-2026-89689",
    "CVE-2026-89894",
    "CVE-2026-90036",
    "CVE-2026-93207",
    "CVE-2026-93228"
  );

  script_name(english:"Oracle Linux 10 : kernel (ELSA-2026-83207)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Oracle Linux host is missing one or more security updates.");
  script_set_attribute(attribute:"description", value:
"The remote Oracle Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in
the ELSA-2026-83207 advisory.

    - net/smc: carry oversized SMC-Rv2 LLC messages in the queue entry (Jan Polensky) [RHEL-271473]
    {CVE-2026-80985}
    - net/smc: bound the peer rkey counts in SMC-Rv2 LLC messages (Jan Polensky) [RHEL-271473]
    {CVE-2026-80985}
    - net/smc: fix use-after-free of the LLC qentry in smc_llc_srv_add_link() (Jan Polensky) [RHEL-271473]
    {CVE-2026-80985}
    - SUNRPC: Zero rpc_gss_wire_cred at svcauth_gss_decode_credbody() entry (Olga Kornievskaia) [RHEL-275057]
    {CVE-2026-93207}
    - svcrdma: Reject Write/Reply chunks with segcount 0 (Olga Kornievskaia) [RHEL-275073] {CVE-2026-93228}
    - nfsd: don't free session slots that are still in use (Olga Kornievskaia) [RHEL-270850] {CVE-2026-89689}
    - NFSD: Prevent client use-after-free during blocked-lock reaping (Olga Kornievskaia) [RHEL-270946]
    {CVE-2026-90036}
    - NFSD: Prevent client use-after-free during delegation revoke (Olga Kornievskaia) [RHEL-270946]
    {CVE-2026-89659}
    - svcrdma: Validate Read chunk positions before reconstruction (Olga Kornievskaia) [RHEL-271459]
    {CVE-2026-89526}
    - media: cx231xx: reject geometry changes while the VBI queue is busy (CKI Backport Bot) [RHEL-262501]
    {CVE-2026-89894}
    - ASoC: SOF: ipc3-control: Fix heap overflow in bytes_ext put/get (CKI Backport Bot) [RHEL-261677]
    {CVE-2026-72262}
    - net/iucv: fix use-after-free of a severed iucv_path (CKI Backport Bot) [RHEL-260529] {CVE-2026-68140}
    - wifi: mac80211: bounds-check link_id in ieee80211_ml_epcs (CKI Backport Bot) [RHEL-259554]
    {CVE-2026-64030}
    - USB: serial: cypress_m8: fix memory corruption with small endpoint (Desnes Nunes) [RHEL-259316]
    {CVE-2026-63956}
    - USB: serial: safe_serial: fix memory corruption with small endpoint (Desnes Nunes) [RHEL-259316]
    {CVE-2026-63957}
    - USB: serial: omninet: fix memory corruption with small endpoint (Desnes Nunes) [RHEL-259316]
    {CVE-2026-63928}
    - USB: serial: mxuport: fix memory corruption with small endpoint (Desnes Nunes) [RHEL-259316]
    {CVE-2026-63899}
    - netfilter: nfnetlink_queue: do shared-unconfirmed check before segmentation (Phil Sutter) [RHEL-230721]
    {CVE-2026-45859}
    - ALSA: usx2y: bound the hwdep mmap fault offset (CKI Backport Bot) [RHEL-256452] {CVE-2026-74641}
    - dmaengine: idxd: fix fdev setup failure cleanup in idxd_cdev_open() (CKI Backport Bot) [RHEL-254620]
    {CVE-2026-74574}
    - idpf: fix max_vport related crash on allocation error during init (Michal Schmidt) [RHEL-243402]
    {CVE-2026-68291}
    - idpf: fix double free and use-after-free in aux device error paths (Michal Schmidt) [RHEL-243402]
    {CVE-2026-53286}
    - idpf: fix read_dev_clk_lock spinlock init in idpf_ptp_init() (Michal Schmidt) [RHEL-243402]
    {CVE-2026-64162}
    - idpf: fix PREEMPT_RT raw/bh spinlock nesting for async VC handling (Michal Schmidt) [RHEL-243402]
    {CVE-2026-31647}
    - Bluetooth: hci_core: Fix queuing tx_work after workqueue is drained (CKI Backport Bot) [RHEL-244763]
    {CVE-2026-63974}
    - Bluetooth: hci_sync: Set HCI_CMD_DRAIN_WORKQUEUE during device close (CKI Backport Bot) [RHEL-244763]
    {CVE-2026-63974}
    - net/sched: act_tunnel_key: Defer dst_release to RCU callback (CKI Backport Bot) [RHEL-240917]
    {CVE-2026-68377}
    - bridge: mcast: Fix a possible use-after-free when removing a bridge port (CKI Backport Bot)
    [RHEL-232531] {CVE-2026-64032}
    - net/sched: act_ct: Only release RCU read lock after ct_ft (CKI Backport Bot) [RHEL-229655]
    {CVE-2026-46319}
    - net/sched: taprio: fix use-after-free in advance_sched() on schedule switch (CKI Backport Bot)
    [RHEL-226492] {CVE-2026-53011}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version
number.");
  script_set_attribute(attribute:"see_also", value:"https://linux.oracle.com/errata/ELSA-2026-83207.html");
  script_set_attribute(attribute:"solution", value:
"Update the affected packages.");
  script_set_cvss_base_vector("CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:U/RL:OF/RC:C");
  script_set_cvss3_base_vector("CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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-2026-93207");

  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:"2026/03/27");
  script_set_attribute(attribute:"patch_publication_date", value:"2026/10/15");
  script_set_attribute(attribute:"plugin_publication_date", value:"2026/10/16");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:10");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:oracle:linux:10:2:baseos_patch");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-abi-stablelists");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-cross-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-devel-matched");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-modules-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-modules-extra");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-debug-uki-virt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-devel-matched");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-modules");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-modules-core");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-modules-extra");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-modules-extra-matched");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-tools-libs");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-tools-libs-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uki-virt");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:kernel-uki-virt-addons");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:libperf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:python3-perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rtla");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:oracle:linux:rv");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Oracle 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("linux_alt_patch_detect.nasl", "ssh_get_info2.nasl");
  script_require_keys("Host/OracleLinux", "Host/RedHat/release", "Host/RedHat/rpm-list", "Host/local_checks_enabled");

  exit(0);
}


include('rpm2.inc');
include('ksplice.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) || !pregmatch(pattern: "Oracle (?:Linux Server|Enterprise Linux)", string:os_product)) audit(AUDIT_OS_NOT, 'Oracle Linux');
var os_version = get_kb_item('installed_os/local/SSH/0/version');
if (isnull(os_version)) audit(AUDIT_UNKNOWN_APP_VER, 'Oracle Linux');
if (! preg(pattern:"^10([^0-9]|$)", string:os_version)) audit(AUDIT_OS_NOT, 'Oracle Linux 10.x', 'Oracle Linux ' + os_version);

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

var cpu = get_kb_item('Host/cpu');
if (isnull(cpu)) audit(AUDIT_UNKNOWN_ARCH);
if ('x86_64' >!< cpu && cpu !~ "^i[3-6]86$" && 'aarch64' >!< cpu) audit(AUDIT_LOCAL_CHECKS_NOT_IMPLEMENTED, 'Oracle Linux', cpu);

var machine_uptrack_level = get_one_kb_item('Host/livepatch-kernel-version');
var livepatch_source = get_one_kb_item('Host/livepatch-kernel-source');
if (empty_or_null(livepatch_source)) livepatch_source = 'KSplice';

if (machine_uptrack_level)
{
  var trimmed_uptrack_level = ereg_replace(string:machine_uptrack_level, pattern:"\.(x86_64|i[3-6]86|aarch64)$", replace:'');
  var fixed_uptrack_levels = ['6.12.0-211.66.1.el10_2'];
  foreach var fixed_uptrack_level ( fixed_uptrack_levels ) {
    if (rpm_spec_vers_cmp(a:trimmed_uptrack_level, b:fixed_uptrack_level) >= 0)
    {
      audit(AUDIT_PATCH_INSTALLED, livepatch_source + ' hotfix for ELSA-2026-83207');
    }
  }
  __rpm_report = 'Running ' + livepatch_source + ' level of ' + trimmed_uptrack_level + ' does not meet the minimum fixed level of ' + join(fixed_uptrack_levels, sep:' / ') + ' for this advisory.\n\n';
}

var kernel_major_minor = get_kb_item('Host/uname/major_minor');
if (empty_or_null(kernel_major_minor)) exit(1, 'Unable to determine kernel major-minor level.');
var expected_kernel_major_minor = '6.12';
if (kernel_major_minor != expected_kernel_major_minor)
  audit(AUDIT_OS_NOT, 'running kernel level ' + expected_kernel_major_minor + ', it is running kernel level ' + kernel_major_minor);

var constraints = [
  {
    'release': '10',
    'pkgs': [
      {'reference':'kernel-cross-headers-6.12.0-211.66.1.el10_2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-headers-6.12.0-211.66.1.el10_2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-6.12.0-211.66.1.el10_2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-libs-6.12.0-211.66.1.el10_2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-libs-devel-6.12.0-211.66.1.el10_2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libperf-6.12.0-211.66.1.el10_2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'perf-6.12.0-211.66.1.el10_2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-perf-6.12.0-211.66.1.el10_2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rtla-6.12.0-211.66.1.el10_2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rv-6.12.0-211.66.1.el10_2', 'cpu':'aarch64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-abi-stablelists-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-core-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-cross-headers-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-core-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-devel-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-devel-matched-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-modules-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-modules-core-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-modules-extra-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-debug-uki-virt-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-devel-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-devel-matched-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-headers-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-modules-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-modules-core-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-modules-extra-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-modules-extra-matched-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-libs-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-tools-libs-devel-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-uki-virt-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'kernel-uki-virt-addons-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'libperf-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'perf-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'python3-perf-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rtla-6.12.0-211.66.1.el10_2', 'cpu':'x86_64', 'rpm_spec_vers_cmp':TRUE},
      {'reference':'rv-6.12.0-211.66.1.el10_2', '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_HOLE,
      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 / kernel-abi-stablelists / kernel-core / etc');
}