Linux/Unix 主机中安装的一个或多个程序包受到一个漏洞影响，而供应商没有提供补丁程序。

  - net:sfc修复旧 irq 模式中未释放的 irq SFC 驱动程序可通过 modparam 配置为使用 MSI-X、MSI 或旧 IRQ 中断工作。在上一个版本中，移除模块时未正确释放中断。它未释放因为在使用旧版 IRQ 的情况下未在初始化期间设置 irqs_hook 标记。示例无此补丁remove_proc_entry在模块删除期间经过修整的跟踪
    删除非空目录 'irq/125'至少泄漏 '0000:3b:00.1' WARNING: CPU: 39 PID: 3658 at fs/proc/generic.c:715 remove_proc_entry+0x15c/0x170 ...trimmed.。 。调用跟踪：
    unregister_irq_proc+0xe3/0x100 free_desc+0x29/0x70 irq_free_descs+0x47/0x70 mp_unmap_irq+0x58/0x60 acpi_unregister_gsi_ioapic+0x2a/0x40 acpi_pci_irq_disable+0x78/0xb0 pci_disable_device+0xd1/0x100 efx_pci_remove+0xa1/0x1e0 [sfc] pci_device_remove+0x38/0xa0 __device_release_driver+ 0x177/0x230 driver_detach+0xcb/0x110 bus_remove_driver+0x58/0xd0 pci_unregister_driver+0x2a/0xb0 efx_exit_module+0x24/0xf40 [sfc] __do_sys_delete_module.constprop.0+0x171/0x280 exit_to_user_mode_prepare+0x83/0x1d0 do_syscall_64+0x3d/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP
    0033:0x7f9f9385800b ...已修剪... (CVE-2021-47283)

请注意，Nessus 依赖供应商报告的程序包是否存在进行判断。

Linux/Unix 主機上安裝了一個或多個受到弱點影響的套件，且供應商未提供可用的修補程式。

  - net:sfc修正舊版 irq 模式中的未釋放 irq SFC 驅動程式可透過 modparam 設定為使用 MSI-X、MSI 或舊版 IRQ 中斷運作。在最後一個弱點中移除模組時並未正確釋放中斷。未釋放因為使用舊版 IRQ 時在初始化期間未設定 irqs_hooked 旗標。在不使用此修正的情況下移除模組期間的 (已修剪的) 追踪範例remove_proc_entry
    移除非空白目錄 'irq/125'至少洩漏 '0000:3b:00.1' 警告 CPU: 39 PID: 3658 at fs/proc/generic.c:715 remove_proc_entry+0x15c/0x170 ...trimmed.. 。呼叫追踪：
    unregister_irq_proc+0xe3/0x100 free_desc+0x29/0x70 irq_free_descs+0x47/0x70 mp_unmap_irq+0x58/0x60 acpi_unregister_gsi_ioapic+0x2a/0x40 acpi_pci_irq_disable+0x78/0xb0 pci_disable_device+0xd1/0x100 efx_pci_remove+0xa1/0x1e0 [sfc] pci_device_remove+0x38/0xa0 __device_release_driver+ 0x177/0x230 driver_detach+0xcb/0x110 bus_remove_driver+0x58/0xd0 pci_unregister_driver+0x2a/0xb0 efx_exit_module+0x24/0xf40 [sfc] __do_sys_delete_module.constprop.0+0x171/0x280 exit_to_user_mode_prepare+0x83/0x1d0 do_syscall_64+0x3d/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP
    00330x7f9f9385800b ...修剪過... (CVE-2021-47283)

請注意，Nessus 依賴供應商報告的套件存在。

Linux/Unix ホストには、ベンダーが提供するパッチが利用できない脆弱性の影響を受ける複数のパッケージがインストールされています。

  - netsfcレガシー irq モードで解放されない irq を修正します。SFC ドライバーは、modparam で構成し、MSI-X、MSI またはレガシー IRQ の割り込みを使用して動作するようにすることができます。最後の 1 つでは、モジュールの削除で割り込みが適切にリリースされませんでした。レガシー IRQ を使用する際にフラグ irqs_hooked が初期化中に設定されなかったため、解放されませんでした。この修正なしで、モジュールを削除する際にトリミングされるトレースの例remove_proc_entry
    空でないディレクトリ「irq/125」を削除し、少なくとも「0000:3b:00.1」を漏洩します 警告CPU39 PID3658 at fs/proc/generic.c:715 remove_proc_entry+0x15c/0x170 ...trimmed.. 。呼び出しトレース:
    unregister_irq_proc+0xe3/0x100 free_desc+0x29/0x70 irq_free_descs+0x47/0x70 mp_unmap_irq+0x58/0x60 acpi_unregister_gsi_ioapic+0x2a/0x40 acpi_pci_irq_disable+0x78/0xb0 pci_disable_device+0xd1/0x100 efx_pci_remove+0xa1/0x1e0 [sfc] pci_device_remove+0x38/0xa0 __device_release_driver+ 0x177/0x230 driver_detach+0xcb/0x110 bus_remove_driver+0x58/0xd0 pci_unregister_driver+0x2a/0xb0 efx_exit_module+0x24/0xf40 [sfc] __do_sys_delete_module.constprop.0+0x171/0x280 ? exit_to_user_mode_prepare+0x83/0x1d0 do_syscall_64+0x3d/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP
    0033:0x7f9f9385800b ...trimmed...CVE-2021-47283

Nessus は、ベンダーによって報告されたパッケージの存在に依存していることに注意してください。

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

  - net:sfc: fix non-freed irq in legacy irq mode SFC driver can be configured via modparam to work using     MSI-X, MSI or legacy IRQ interrupts. In the last one, the interrupt was not properly released on module     remove. It was not freed because the flag irqs_hooked was not set during initialization in the case of     using legacy IRQ. Example of (trimmed) trace during module remove without this fix: remove_proc_entry:
    removing non-empty directory 'irq/125', leaking at least '0000:3b:00.1' WARNING: CPU: 39 PID: 3658 at     fs/proc/generic.c:715 remove_proc_entry+0x15c/0x170 ...trimmed... Call Trace:
    unregister_irq_proc+0xe3/0x100 free_desc+0x29/0x70 irq_free_descs+0x47/0x70 mp_unmap_irq+0x58/0x60     acpi_unregister_gsi_ioapic+0x2a/0x40 acpi_pci_irq_disable+0x78/0xb0 pci_disable_device+0xd1/0x100     efx_pci_remove+0xa1/0x1e0 [sfc] pci_device_remove+0x38/0xa0 __device_release_driver+0x177/0x230     driver_detach+0xcb/0x110 bus_remove_driver+0x58/0xd0 pci_unregister_driver+0x2a/0xb0     efx_exit_module+0x24/0xf40 [sfc] __do_sys_delete_module.constprop.0+0x171/0x280 ?     exit_to_user_mode_prepare+0x83/0x1d0 do_syscall_64+0x3d/0x80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP:
    0033:0x7f9f9385800b ...trimmed... (CVE-2021-47283)

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

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989935 advisory.

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

    net:sfc: fix non-freed irq in legacy irq mode

    SFC driver can be configured via modparam to work using MSI-X, MSI or     legacy IRQ interrupts. In the last one, the interrupt was not properly     released on module remove.

    It was not freed because the flag irqs_hooked was not set during     initialization in the case of using legacy IRQ.

    Example of (trimmed) trace during module remove without this fix:

    remove_proc_entry: removing non-empty directory 'irq/125', leaking at least '0000:3b:00.1'     WARNING: CPU: 39 PID: 3658 at fs/proc/generic.c:715 remove_proc_entry+0x15c/0x170     ...trimmed...
    Call Trace:
     unregister_irq_proc+0xe3/0x100      free_desc+0x29/0x70      irq_free_descs+0x47/0x70      mp_unmap_irq+0x58/0x60      acpi_unregister_gsi_ioapic+0x2a/0x40      acpi_pci_irq_disable+0x78/0xb0      pci_disable_device+0xd1/0x100      efx_pci_remove+0xa1/0x1e0 [sfc]      pci_device_remove+0x38/0xa0
     __device_release_driver+0x177/0x230      driver_detach+0xcb/0x110      bus_remove_driver+0x58/0xd0      pci_unregister_driver+0x2a/0xb0      efx_exit_module+0x24/0xf40 [sfc]
     __do_sys_delete_module.constprop.0+0x171/0x280      ? exit_to_user_mode_prepare+0x83/0x1d0      do_syscall_64+0x3d/0x80      entry_SYSCALL_64_after_hwframe+0x44/0xae     RIP: 0033:0x7f9f9385800b     ...trimmed...

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.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-986701 advisory.

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

    net:sfc: fix non-freed irq in legacy irq mode

    SFC driver can be configured via modparam to work using MSI-X, MSI or     legacy IRQ interrupts. In the last one, the interrupt was not properly     released on module remove.

    It was not freed because the flag irqs_hooked was not set during     initialization in the case of using legacy IRQ.

    Example of (trimmed) trace during module remove without this fix:

    remove_proc_entry: removing non-empty directory 'irq/125', leaking at least '0000:3b:00.1'     WARNING: CPU: 39 PID: 3658 at fs/proc/generic.c:715 remove_proc_entry+0x15c/0x170     ...trimmed...
    Call Trace:
     unregister_irq_proc+0xe3/0x100      free_desc+0x29/0x70      irq_free_descs+0x47/0x70      mp_unmap_irq+0x58/0x60      acpi_unregister_gsi_ioapic+0x2a/0x40      acpi_pci_irq_disable+0x78/0xb0      pci_disable_device+0xd1/0x100      efx_pci_remove+0xa1/0x1e0 [sfc]      pci_device_remove+0x38/0xa0
     __device_release_driver+0x177/0x230      driver_detach+0xcb/0x110      bus_remove_driver+0x58/0xd0      pci_unregister_driver+0x2a/0xb0      efx_exit_module+0x24/0xf40 [sfc]
     __do_sys_delete_module.constprop.0+0x171/0x280      ? exit_to_user_mode_prepare+0x83/0x1d0      do_syscall_64+0x3d/0x80      entry_SYSCALL_64_after_hwframe+0x44/0xae     RIP: 0033:0x7f9f9385800b     ...trimmed...

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.

ID	Name	Product	Family	Published	Updated	Severity
229853	Linux Distros 未修补的漏洞：CVE-2021-47283	Nessus	Misc.	3/5/2025	7/17/2026	medium
229853	Linux Distros 未修補的弱點：CVE-2021-47283	Nessus	Misc.	3/5/2025	7/17/2026	medium
229853	Linux Distros のパッチ未適用の脆弱性: CVE-2021-47283	Nessus	Misc.	3/5/2025	7/17/2026	medium
229853	Linux Distros Unpatched Vulnerability : CVE-2021-47283	Nessus	Misc.	3/5/2025	7/17/2026	medium
273837	Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989935)	Nessus	Unity Linux Local Security Checks	11/5/2025	11/5/2025	medium
268616	Unity Linux 20.1070e Security Update: kernel (UTSA-2025-986701)	Nessus	Unity Linux Local Security Checks	10/7/2025	10/15/2025	medium

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