The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - In the Linux kernel, the following vulnerability has been resolved: net/sunrpc: fix reference count leaks     in rpc_sysfs_xprt_state_change The refcount leak issues take place in an error handling path. When the 3rd     argument buf doesn't match with offline, online or remove, the function simply returns -EINVAL and     forgets to decrease the reference count of a rpc_xprt object and a rpc_xprt_switch object increased by     rpc_sysfs_xprt_kobj_get_xprt() and rpc_sysfs_xprt_kobj_get_xprt_switch(), causing reference count leaks of     both unused objects. Fix this issue by jumping to the error handling path labelled with out_put when buf     matches none of offline, online or remove. (CVE-2021-47624)

Note that Nessus relies on the presence of the package as reported by the vendor.

The remote AlmaLinux 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2024:5101 advisory.

    * kernel: powerpc: Fix access beyond end of drmem array (CVE-2023-52451)
    * kernel: efivarfs: force RO when remounting if SetVariable is not supported (CVE-2023-52463)
    * kernel: tracing: Restructure trace_clock_global() to never block (CVE-2021-46939)
    * kernel: ext4: avoid online resizing failures due to oversized flex bg (CVE-2023-52622)
    * kernel: net/sched: flower: Fix chain template offload (CVE-2024-26669)
    * kernel: stmmac: Clear variable when destroying workqueue (CVE-2024-26802)
    * kernel: efi: runtime: Fix potential overflow of soft-reserved region size (CVE-2024-26843)
    * kernel: quota: Fix potential NULL pointer dereference (CVE-2024-26878)
    * kernel: TIPC message reassembly use-after-free remote code execution vulnerability (CVE-2024-36886)
    * kernel: SUNRPC: fix a memleak in gss_import_v2_context (CVE-2023-52653)
    * kernel: dmaengine/idxd: hardware erratum allows potential security problem with direct access by     untrusted application (CVE-2024-21823)
    * kernel: Revert net/mlx5: Block entering switchdev mode with ns inconsistency (CVE-2023-52658)
    * kernel: ext4: fix corruption during on-line resize (CVE-2024-35807)
    * kernel: x86/fpu: Keep xfd_state in sync with MSR_IA32_XFD (CVE-2024-35801)
    * kernel: dyndbg: fix old BUG_ON in >control parser (CVE-2024-35947)
    * kernel: net/sched: act_skbmod: prevent kernel-infoleak (CVE-2024-35893)
    * kernel: x86/mce: Make sure to grab mce_sysfs_mutex in set_bank() (CVE-2024-35876)
    * kernel: platform/x86: wmi: Fix opening of char device (CVE-2023-52864)
    * kernel: tipc: Change nla_policy for bearer-related names to NLA_NUL_STRING (CVE-2023-52845)
    * (CVE-2023-28746)
    * (CVE-2023-52847)
    * (CVE-2021-47548)
    * (CVE-2024-36921)
    * (CVE-2024-26921)
    * (CVE-2021-47579)
    * (CVE-2024-36927)
    * (CVE-2024-39276)
    * (CVE-2024-33621)
    * (CVE-2024-27010)
    * (CVE-2024-26960)
    * (CVE-2024-38596)
    * (CVE-2022-48743)
    * (CVE-2024-26733)
    * (CVE-2024-26586)
    * (CVE-2024-26698)
    * (CVE-2023-52619)

    Bug Fix(es):

    * AlmaLinux8.6 - Spinlock statistics may show negative elapsed time and incorrectly formatted output     (JIRA:AlmaLinux-17678)
    * [AWS][8.9]There are call traces found when booting debug-kernel  for Amazon EC2 r8g.metal-24xl instance     (JIRA:AlmaLinux-23841)
    * [almalinux8] gfs2: Fix glock shrinker (JIRA:AlmaLinux-32941)
    * lan78xx: Microchip LAN7800 never comes up after unplug and replug (JIRA:AlmaLinux-33437)
    * [Hyper-V][AlmaLinux-8.10.z] Update hv_netvsc driver to TOT (JIRA:AlmaLinux-39074)
    * Use-after-free on proc inode-i_sb triggered by fsnotify (JIRA:AlmaLinux-40167)
    * blk-cgroup: Properly propagate the iostat update up the hierarchy [almalinux-8.10.z]     (JIRA:AlmaLinux-40939)
    * (JIRA:AlmaLinux-31798)
    * (JIRA:AlmaLinux-10263)
    * (JIRA:AlmaLinux-40901)
    * (JIRA:AlmaLinux-43547)
    * (JIRA:AlmaLinux-34876)

    Enhancement(s):

    * [RFE] Add module parameters 'soft_reboot_cmd' and 'soft_active_on_boot' for customizing softdog     configuration (JIRA:AlmaLinux-19723)

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

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
224321	Linux Distros Unpatched Vulnerability : CVE-2021-47624	Nessus	Misc.	3/5/2025	7/17/2026	high
205293	AlmaLinux 8 : kernel (ALSA-2024:5101)	Nessus	Alma Linux Local Security Checks	8/9/2024	9/23/2025	high

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