Amazon Linux 2 : kernel (ALASKERNEL-5.15-2023-023)

#%NASL_MIN_LEVEL 80900
##
# (C) Tenable, Inc.
#
# The descriptive text and package checks in this plugin were
# extracted from Amazon Linux 2 Security Advisory ALASKERNEL-5.15-2023-023.
##

include('compat.inc');

if (description)
{
  script_id(180569);
  script_version("1.4");
  script_set_attribute(attribute:"plugin_modification_date", value:"2024/03/19");

  script_cve_id(
    "CVE-2021-28951",
    "CVE-2021-3923",
    "CVE-2022-0500",
    "CVE-2022-1015",
    "CVE-2022-1016",
    "CVE-2022-1158",
    "CVE-2022-1263",
    "CVE-2022-1353",
    "CVE-2022-1729",
    "CVE-2022-2639",
    "CVE-2022-23222",
    "CVE-2022-28893",
    "CVE-2022-29581",
    "CVE-2022-29582",
    "CVE-2022-30594",
    "CVE-2022-48619",
    "CVE-2023-1637",
    "CVE-2023-1838",
    "CVE-2023-4387",
    "CVE-2023-4459",
    "CVE-2023-28410"
  );

  script_name(english:"Amazon Linux 2 : kernel (ALASKERNEL-5.15-2023-023)");

  script_set_attribute(attribute:"synopsis", value:
"The remote Amazon Linux 2 host is missing a security update.");
  script_set_attribute(attribute:"description", value:
"The version of kernel installed on the remote host is prior to 5.15.43-20.103. It is, therefore, affected by multiple
vulnerabilities as referenced in the ALAS2KERNEL-5.15-2023-023 advisory.

  - An issue was discovered in fs/io_uring.c in the Linux kernel through 5.11.8. It allows attackers to cause
    a denial of service (deadlock) because exit may be waiting to park a SQPOLL thread, but concurrently that
    SQPOLL thread is waiting for a signal to start, aka CID-3ebba796fa25. (CVE-2021-28951)

  - A flaw was found in the Linux kernel's implementation of RDMA over infiniband. An attacker with a
    privileged local account can leak kernel stack information when issuing commands to the
    /dev/infiniband/rdma_cm device node. While this access is unlikely to leak sensitive user information, it
    can be further used to defeat existing kernel protection mechanisms. (CVE-2021-3923)

  - A flaw was found in unrestricted eBPF usage by the BPF_BTF_LOAD, leading to a possible out-of-bounds
    memory write in the Linux kernel's BPF subsystem due to the way a user loads BTF. This flaw allows a local
    user to crash or escalate their privileges on the system. (CVE-2022-0500)

  - A flaw was found in the Linux kernel in linux/net/netfilter/nf_tables_api.c of the netfilter subsystem.
    This flaw allows a local user to cause an out-of-bounds write issue. (CVE-2022-1015)

  - A flaw was found in the Linux kernel in net/netfilter/nf_tables_core.c:nft_do_chain, which can cause a
    use-after-free. This issue needs to handle 'return' with proper preconditions, as it can lead to a kernel
    information leak problem caused by a local, unprivileged attacker. (CVE-2022-1016)

  - A flaw was found in KVM. When updating a guest's page table entry, vm_pgoff was improperly used as the
    offset to get the page's pfn. As vaddr and vm_pgoff are controllable by user-mode processes, this flaw
    allows unprivileged local users on the host to write outside the userspace region and potentially corrupt
    the kernel, resulting in a denial of service condition. (CVE-2022-1158)

  - A NULL pointer dereference issue was found in KVM when releasing a vCPU with dirty ring support enabled.
    This flaw allows an unprivileged local attacker on the host to issue specific ioctl calls, causing a
    kernel oops condition that results in a denial of service. (CVE-2022-1263)

  - A vulnerability was found in the pfkey_register function in net/key/af_key.c in the Linux kernel. This
    flaw allows a local, unprivileged user to gain access to kernel memory, leading to a system crash or a
    leak of internal kernel information. (CVE-2022-1353)

  - A race condition was found the Linux kernel in perf_event_open() which can be exploited by an unprivileged
    user to gain root privileges. The bug allows to build several exploit primitives such as kernel address
    information leak, arbitrary execution, etc. (CVE-2022-1729)

  - kernel/bpf/verifier.c in the Linux kernel through 5.15.14 allows local users to gain privileges because of
    the availability of pointer arithmetic via certain *_OR_NULL pointer types. (CVE-2022-23222)

  - An integer coercion error was found in the openvswitch kernel module. Given a sufficiently large number of
    actions, while copying and reserving memory for a new action of a new flow, the reserve_sfa_size()
    function does not return -EMSGSIZE as expected, potentially leading to an out-of-bounds write access. This
    flaw allows a local user to crash or potentially escalate their privileges on the system. (CVE-2022-2639)

  - The SUNRPC subsystem in the Linux kernel through 5.17.2 can call xs_xprt_free before ensuring that sockets
    are in the intended state. (CVE-2022-28893)

  - Improper Update of Reference Count vulnerability in net/sched of Linux Kernel allows local attacker to
    cause privilege escalation to root. This issue affects: Linux Kernel versions prior to 5.18; version 4.14
    and later versions. (CVE-2022-29581)

  - In the Linux kernel before 5.17.3, fs/io_uring.c has a use-after-free due to a race condition in io_uring
    timeouts. This can be triggered by a local user who has no access to any user namespace; however, the race
    condition perhaps can only be exploited infrequently. (CVE-2022-29582)

  - The Linux kernel before 5.17.2 mishandles seccomp permissions. The PTRACE_SEIZE code path allows attackers
    to bypass intended restrictions on setting the PT_SUSPEND_SECCOMP flag. (CVE-2022-30594)

  - An issue was discovered in drivers/input/input.c in the Linux kernel before 5.17.10. An attacker can cause
    a denial of service (panic) because input_set_capability mishandles the situation in which an event code
    falls outside of a bitmap. (CVE-2022-48619)

  - A flaw that boot CPU could be vulnerable for the speculative execution behavior kind of attacks in the
    Linux kernel X86 CPU Power management options functionality was found in the way user resuming CPU from
    suspend-to-RAM. A local user could use this flaw to potentially get unauthorized access to some memory of
    the CPU similar to the speculative execution behavior kind of attacks. (CVE-2023-1637)

  - A use-after-free flaw was found in vhost_net_set_backend in drivers/vhost/net.c in virtio network
    subcomponent in the Linux kernel due to a double fget. This flaw could allow a local attacker to crash the
    system, and could even lead to a kernel information leak problem. (CVE-2023-1838)

  - Improper restriction of operations within the bounds of a memory buffer in some Intel(R) i915 Graphics
    drivers for linux before kernel version 6.2.10 may allow an authenticated user to potentially enable
    escalation of privilege via local access. (CVE-2023-28410)

  - A use-after-free flaw was found in vmxnet3_rq_alloc_rx_buf in drivers/net/vmxnet3/vmxnet3_drv.c in
    VMware's vmxnet3 ethernet NIC driver in the Linux Kernel. This issue could allow a local attacker to crash
    the system due to a double-free while cleaning up vmxnet3_rq_cleanup_all, which could also lead to a
    kernel information leak problem. (CVE-2023-4387)

  - A NULL pointer dereference flaw was found in vmxnet3_rq_cleanup in drivers/net/vmxnet3/vmxnet3_drv.c in
    the networking sub-component in vmxnet3 in the Linux Kernel. This issue may allow a local attacker with
    normal user privilege to cause a denial of service due to a missing sanity check during cleanup.
    (CVE-2023-4459)

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://alas.aws.amazon.com/AL2/ALASKERNEL-5.15-2023-023.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/faqs.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2021-28951.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2021-3923.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-0500.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-1015.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-1016.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-1158.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-1263.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-1353.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-1729.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-2639.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-23222.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-28893.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-29581.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-29582.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-30594.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2022-48619.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2023-1637.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2023-1838.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2023-4387.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2023-4459.html");
  script_set_attribute(attribute:"see_also", value:"https://alas.aws.amazon.com/cve/html/CVE-2023-28410.html");
  script_set_attribute(attribute:"solution", value:
"Run 'yum update kernel' to update your system.");
  script_set_cvss_base_vector("CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C");
  script_set_cvss_temporal_vector("CVSS2#E:H/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:H/RL:O/RC:C");
  script_set_attribute(attribute:"cvss_score_source", value:"CVE-2022-29581");
  script_set_attribute(attribute:"cvss3_score_source", value:"CVE-2023-28410");

  script_set_attribute(attribute:"exploitability_ease", value:"Exploits are available");
  script_set_attribute(attribute:"exploit_available", value:"true");
  script_set_attribute(attribute:"exploit_framework_core", value:"true");
  script_set_attribute(attribute:"exploited_by_malware", value:"true");

  script_set_attribute(attribute:"vuln_publication_date", value:"2021/03/20");
  script_set_attribute(attribute:"patch_publication_date", value:"2023/06/29");
  script_set_attribute(attribute:"plugin_publication_date", value:"2023/09/06");

  script_set_attribute(attribute:"plugin_type", value:"local");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:bpftool");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:bpftool-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-debuginfo-common-aarch64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-debuginfo-common-x86_64");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-headers");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-livepatch-5.15.43-20.103");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-tools");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-tools-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:kernel-tools-devel");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:perf-debuginfo");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python-perf");
  script_set_attribute(attribute:"cpe", value:"p-cpe:/a:amazon:linux:python-perf-debuginfo");
  script_set_attribute(attribute:"cpe", value:"cpe:/o:amazon:linux:2");
  script_set_attribute(attribute:"generated_plugin", value:"current");
  script_end_attributes();

  script_category(ACT_GATHER_INFO);
  script_family(english:"Amazon Linux Local Security Checks");

  script_copyright(english:"This script is Copyright (C) 2023-2024 and is owned by Tenable, Inc. or an Affiliate thereof.");

  script_dependencies("ssh_get_info.nasl", "kpatch.nasl");
  script_require_keys("Host/local_checks_enabled", "Host/AmazonLinux/release", "Host/AmazonLinux/rpm-list");

  exit(0);
}

include("rpm.inc");
include("hotfixes.inc");

if (!get_kb_item("Host/local_checks_enabled")) audit(AUDIT_LOCAL_CHECKS_NOT_ENABLED);

var alas_release = get_kb_item("Host/AmazonLinux/release");
if (isnull(alas_release) || !strlen(alas_release)) audit(AUDIT_OS_NOT, "Amazon Linux");
var os_ver = pregmatch(pattern: "^AL(A|\d+|-\d+)", string:alas_release);
if (isnull(os_ver)) audit(AUDIT_UNKNOWN_APP_VER, "Amazon Linux");
os_ver = os_ver[1];
if (os_ver != "2")
{
  if (os_ver == 'A') os_ver = 'AMI';
  audit(AUDIT_OS_NOT, "Amazon Linux 2", "Amazon Linux " + os_ver);
}

if (!get_kb_item("Host/AmazonLinux/rpm-list")) audit(AUDIT_PACKAGE_LIST_MISSING);

if (get_one_kb_item("Host/kpatch/kernel-cves"))
{
  set_hotfix_type("kpatch");
  var cve_list = make_list("CVE-2021-3923", "CVE-2021-28951", "CVE-2022-0500", "CVE-2022-1015", "CVE-2022-1016", "CVE-2022-1158", "CVE-2022-1263", "CVE-2022-1353", "CVE-2022-1729", "CVE-2022-2639", "CVE-2022-23222", "CVE-2022-28893", "CVE-2022-29581", "CVE-2022-29582", "CVE-2022-30594", "CVE-2022-48619", "CVE-2023-1637", "CVE-2023-1838", "CVE-2023-4387", "CVE-2023-4459", "CVE-2023-28410");
  if (hotfix_cves_check(cve_list))
  {
    audit(AUDIT_PATCH_INSTALLED, "kpatch hotfix for ALASKERNEL-5.15-2023-023");
  }
  else
  {
    __rpm_report = hotfix_reporting_text();
  }
}
var pkgs = [
    {'reference':'bpftool-5.15.43-20.103.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'bpftool-5.15.43-20.103.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'bpftool-debuginfo-5.15.43-20.103.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'bpftool-debuginfo-5.15.43-20.103.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'kernel-5.15.43-20.103.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'kernel-5.15.43-20.103.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'kernel-debuginfo-5.15.43-20.103.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'kernel-debuginfo-5.15.43-20.103.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'kernel-debuginfo-common-aarch64-5.15.43-20.103.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'kernel-debuginfo-common-x86_64-5.15.43-20.103.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'kernel-devel-5.15.43-20.103.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'kernel-devel-5.15.43-20.103.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'kernel-headers-5.15.43-20.103.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'kernel-headers-5.15.43-20.103.amzn2', 'cpu':'i686', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'kernel-headers-5.15.43-20.103.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'kernel-livepatch-5.15.43-20.103-1.0-0.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'kernel-livepatch-5.15.43-20.103-1.0-0.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'kernel-tools-5.15.43-20.103.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'kernel-tools-5.15.43-20.103.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'kernel-tools-debuginfo-5.15.43-20.103.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'kernel-tools-debuginfo-5.15.43-20.103.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'kernel-tools-devel-5.15.43-20.103.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'kernel-tools-devel-5.15.43-20.103.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'perf-5.15.43-20.103.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'perf-5.15.43-20.103.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'perf-debuginfo-5.15.43-20.103.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'perf-debuginfo-5.15.43-20.103.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'python-perf-5.15.43-20.103.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'python-perf-5.15.43-20.103.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'python-perf-debuginfo-5.15.43-20.103.amzn2', 'cpu':'aarch64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'},
    {'reference':'python-perf-debuginfo-5.15.43-20.103.amzn2', 'cpu':'x86_64', 'release':'AL2', 'rpm_spec_vers_cmp':TRUE, 'exists_check':'kernel-5.15'}
];

var flag = 0;
foreach var package_array ( pkgs ) {
  var reference = NULL;
  var _release = NULL;
  var sp = NULL;
  var _cpu = NULL;
  var el_string = NULL;
  var rpm_spec_vers_cmp = NULL;
  var epoch = NULL;
  var allowmaj = NULL;
  var exists_check = NULL;
  if (!empty_or_null(package_array['reference'])) reference = package_array['reference'];
  if (!empty_or_null(package_array['release'])) _release = package_array['release'];
  if (!empty_or_null(package_array['sp'])) sp = package_array['sp'];
  if (!empty_or_null(package_array['cpu'])) _cpu = package_array['cpu'];
  if (!empty_or_null(package_array['el_string'])) el_string = package_array['el_string'];
  if (!empty_or_null(package_array['rpm_spec_vers_cmp'])) rpm_spec_vers_cmp = package_array['rpm_spec_vers_cmp'];
  if (!empty_or_null(package_array['epoch'])) epoch = package_array['epoch'];
  if (!empty_or_null(package_array['allowmaj'])) allowmaj = package_array['allowmaj'];
  if (!empty_or_null(package_array['exists_check'])) exists_check = package_array['exists_check'];
  if (reference && _release && (!exists_check || rpm_exists(release:_release, rpm:exists_check))) {
    if (rpm_check(release:_release, sp:sp, cpu:_cpu, reference:reference, epoch:epoch, el_string:el_string, rpm_spec_vers_cmp:rpm_spec_vers_cmp, allowmaj:allowmaj)) 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, "bpftool / bpftool-debuginfo / kernel / etc");
}