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。

  - 已修复 Linux 内核中的下列漏洞：x86/fpu: Prevent state corruption in
    __fpu__restore_sig() The non-compacted slowpath uses __copy_from_user() and copies the entire user buffer into the kernel buffer, verbatim. This means that the kernel buffer may now contain entirely invalid state on which XRSTOR will #GP. validate_user_xstate_header() can detect some of that corruption, but that leaves the onus on callers to clear the buffer. Prior to XSAVES support, it was possible just to reinitialize the buffer, completely, but with supervisor states that is not longer possible as the buffer clearing code split got it backwards. Fixing that is possible but not corrupting the state in the first place is more robust. Avoid corruption of the kernel XSAVE buffer by using copy_user_to_xstate() which validates the XSAVE header contents before copying the actual states to the kernel. copy_user_to_xstate() was previously only called for compacted-format kernel buffers, but it works for both compacted and non-compacted forms. Using it for the non-compacted form is slower because of multiple __copy_from_user() operations, but that cost is less important than robust code in an already slow path. [ Changelog polished by Dave Hansen ] (CVE-2021-47227)

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。

  - 已解決 Linux 核心中的下列弱點：x86/fpu: Prevent state corruption in
    __fpu__restore_sig() The non-compacted slowpath uses __copy_from_user() and copies the entire user buffer into the kernel buffer, verbatim. This means that the kernel buffer may now contain entirely invalid state on which XRSTOR will #GP. validate_user_xstate_header() can detect some of that corruption, but that leaves the onus on callers to clear the buffer. Prior to XSAVES support, it was possible just to reinitialize the buffer, completely, but with supervisor states that is not longer possible as the buffer clearing code split got it backwards. Fixing that is possible but not corrupting the state in the first place is more robust. Avoid corruption of the kernel XSAVE buffer by using copy_user_to_xstate() which validates the XSAVE header contents before copying the actual states to the kernel. copy_user_to_xstate() was previously only called for compacted-format kernel buffers, but it works for both compacted and non-compacted forms. Using it for the non-compacted form is slower because of multiple __copy_from_user() operations, but that cost is less important than robust code in an already slow path. [ Changelog polished by Dave Hansen ] (CVE-2021-47227)

請注意，Nessus 依賴供應商報告的套件存在。

リモートの SUSE Linux SLES15 / SLES_SAP15 ホストには、SUSE-SU-2024:2185-1 のアドバイザリに記載された複数の脆弱性の影響を受けるパッケージがインストールされています。

    SUSE Linux Enterprise 15 SP3 カーネルが更新され、さまざまなセキュリティバグ修正が行われています。

    次のセキュリティバグを修正しました。

    - CVE-2021-47378: qp を破壊する前に cm id を破壊して、メモリ解放後使用 (Use After Free) を回避します (bsc#1225201)。
    - CVE-2021-47496: tls_err_abort() 呼び出しの反転された符号を修正 (bsc#1225354)
    - CVE-2021-47402: rcu で fl_walk() を保護 (bsc#1225301)
    - CVE-2022-48673: struct smc_link の kABI 回避策 (bsc#1223934)。
    - CVE-2023-52871: データ破損なしで 2 番目のデバイスを処理 (bsc#1225534)
    - CVE-2024-26828: parse_server_interfaces() のアンダーフローを修正 (bsc#1223084)。
    - CVE-2021-47497: バイトサイズのセルで領域外シフト (UBSAN) を修正 (bsc#1225355)。
    - CVE-2021-47500: トリガー参照の呼び出しを修正 (bsc#1225360)。
    - CVE-2024-27413: 不適切な割り当てサイズを修正 (bsc#1224438)。
    - CVE-2021-47383: imageblit における領域外の vmalloc アクセスを修正 (bsc#1225208)。
    - CVE-2021-47511: 負の期間/バッファサイズを修正 (bsc#1225411)。
    - CVE-2023-52840: rmi_unregister_function() のメモリ解放後使用 (Use After Free) を修正 (bsc#1224928)。
    - CVE-2021-47261: CQ フラグメントバッファの初期化を修正 (bsc#1224954)
    - CVE-2021-47254: gfs2_glock_shrink_scan でのメモリ解放後使用 (use-after-free) を修正 (bsc#1224888)。
    - CVE-2024-27398: sco_sock_timeout によって引き起こされるメモリ解放後使用 (Use After Free) のバグを修正 (bsc#1224174)。
    - CVE-2024-26921: sk_buff の kabi を保存 (bsc#1223138)。
    - CVE-2023-52655: 実際の制限のために fixup のパケットをチェックする (bsc#1217169)。
    - CVE-2023-4244: ローカルの権限昇格に悪用される可能性のある、nf_tables コンポーネントのメモリ解放後使用 (Use After Free) を修正しました (bsc#1215420)。
    - CVE-2023-4244: ローカルの権限昇格に悪用される可能性のある、nf_tables コンポーネントのメモリ解放後使用 (Use After Free) を修正しました (bsc#1215420)。
    - CVE-2023-1829: コントロールインデックスフィルターのメモリ解放後使用 (Use After Free) の脆弱性を修正 (tcindex) (bsc#1210335)。
    - CVE-2023-52686: opal_event_init() の NULL ポインターを修正 (bsc#1065729)。


Tenable は、前述の記述ブロックを SUSE セキュリティアドバイザリから直接抽出しています。

Nessus はこれらの問題をテストしておらず、代わりにアプリケーションが自己報告するバージョン番号にのみ依存していることに注意してください。

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。

  - Linux カーネルでは、以下の脆弱性が解決されています: x86/fpu: Prevent state corruption in
    __fpu__restore_sig() The non-compacted slowpath uses __copy_from_user() and copies the entire user buffer into the kernel buffer, verbatim. This means that the kernel buffer may now contain entirely invalid state on which XRSTOR will #GP. validate_user_xstate_header() can detect some of that corruption, but that leaves the onus on callers to clear the buffer. Prior to XSAVES support, it was possible just to reinitialize the buffer, completely, but with supervisor states that is not longer possible as the buffer clearing code split got it backwards. Fixing that is possible but not corrupting the state in the first place is more robust. Avoid corruption of the kernel XSAVE buffer by using copy_user_to_xstate() which validates the XSAVE header contents before copying the actual states to the kernel. copy_user_to_xstate() was previously only called for compacted-format kernel buffers, but it works for both compacted and non-compacted forms. Using it for the non-compacted form is slower because of multiple __copy_from_user() operations, but that cost is less important than robust code in an already slow path. [ Changelog polished by Dave Hansen ] (CVE-2021-47227)

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 Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2025-989287 advisory.

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

    x86/fpu: Prevent state corruption in __fpu__restore_sig()

    The non-compacted slowpath uses __copy_from_user() and copies the entire     user buffer into the kernel buffer, verbatim.  This means that the kernel     buffer may now contain entirely invalid state on which XRSTOR will #GP.
    validate_user_xstate_header() can detect some of that corruption, but that     leaves the onus on callers to clear the buffer.

    Prior to XSAVES support, it was possible just to reinitialize the buffer,     completely, but with supervisor states that is not longer possible as the     buffer clearing code split got it backwards. Fixing that is possible but     not corrupting the state in the first place is more robust.

    Avoid corruption of the kernel XSAVE buffer by using copy_user_to_xstate()     which validates the XSAVE header contents before copying the actual states     to the kernel. copy_user_to_xstate() was previously only called for     compacted-format kernel buffers, but it works for both compacted and     non-compacted forms.

    Using it for the non-compacted form is slower because of multiple
    __copy_from_user() operations, but that cost is less important than robust     code in an already slow path.

    [ Changelog polished by Dave Hansen ]

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 remote SUSE Linux SLES15 / SLES_SAP15 host has packages installed that are affected by multiple vulnerabilities as referenced in the SUSE-SU-2024:2185-1 advisory.

    The SUSE Linux Enterprise 15 SP3 kernel was updated to receive various security bugfixes.

    The following security bugs were fixed:

    - CVE-2021-47378: Destroy cm id before destroy qp to avoid use after free (bsc#1225201).
    - CVE-2021-47496: Fix flipped sign in tls_err_abort() calls (bsc#1225354)
    - CVE-2021-47402: Protect fl_walk() with rcu (bsc#1225301)
    - CVE-2022-48673: kABI workarounds for struct smc_link (bsc#1223934).
    - CVE-2023-52871: Handle a second device without data corruption (bsc#1225534)
    - CVE-2024-26828: Fix underflow in parse_server_interfaces() (bsc#1223084).
    - CVE-2021-47497: Fixed shift-out-of-bound (UBSAN) with byte size cells (bsc#1225355).
    - CVE-2021-47500: Fixed trigger reference couting (bsc#1225360).
    - CVE-2024-27413: Fix incorrect allocation size (bsc#1224438).
    - CVE-2021-47383: Fiedx out-of-bound vmalloc access in imageblit (bsc#1225208).
    - CVE-2021-47511: Fixed negative period/buffer sizes (bsc#1225411).
    - CVE-2023-52840: Fix use after free in rmi_unregister_function() (bsc#1224928).
    - CVE-2021-47261: Fix initializing CQ fragments buffer (bsc#1224954)
    - CVE-2021-47254: Fix use-after-free in gfs2_glock_shrink_scan (bsc#1224888).
    - CVE-2024-27398: Fixed use-after-free bugs caused by sco_sock_timeout (bsc#1224174).
    - CVE-2024-26921: Preserve kabi for sk_buff (bsc#1223138).
    - CVE-2023-52655: Check packet for fixup for true limit (bsc#1217169).
    - CVE-2023-4244: Fixed a use-after-free in the nf_tables component, which could be exploited to achieve     local privilege escalation (bsc#1215420).
    - CVE-2023-4244: Fixed a use-after-free in the nf_tables component, which could be exploited to achieve     local privilege escalation (bsc#1215420).
    - CVE-2023-1829: Fixed a use-after-free vulnerability in the control index filter (tcindex) (bsc#1210335).
    - CVE-2023-52686: Fix a null pointer in opal_event_init() (bsc#1065729).


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

Note that Nessus has not tested for these issues 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-2025-986769 advisory.

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

    x86/fpu: Prevent state corruption in __fpu__restore_sig()

    The non-compacted slowpath uses __copy_from_user() and copies the entire     user buffer into the kernel buffer, verbatim.  This means that the kernel     buffer may now contain entirely invalid state on which XRSTOR will #GP.
    validate_user_xstate_header() can detect some of that corruption, but that     leaves the onus on callers to clear the buffer.

    Prior to XSAVES support, it was possible just to reinitialize the buffer,     completely, but with supervisor states that is not longer possible as the     buffer clearing code split got it backwards. Fixing that is possible but     not corrupting the state in the first place is more robust.

    Avoid corruption of the kernel XSAVE buffer by using copy_user_to_xstate()     which validates the XSAVE header contents before copying the actual states     to the kernel. copy_user_to_xstate() was previously only called for     compacted-format kernel buffers, but it works for both compacted and     non-compacted forms.

    Using it for the non-compacted form is slower because of multiple
    __copy_from_user() operations, but that cost is less important than robust     code in an already slow path.

    [ Changelog polished by Dave Hansen ]

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 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: x86/fpu: Prevent state corruption in
    __fpu__restore_sig() The non-compacted slowpath uses __copy_from_user() and copies the entire user buffer     into the kernel buffer, verbatim. This means that the kernel buffer may now contain entirely invalid state     on which XRSTOR will #GP. validate_user_xstate_header() can detect some of that corruption, but that     leaves the onus on callers to clear the buffer. Prior to XSAVES support, it was possible just to     reinitialize the buffer, completely, but with supervisor states that is not longer possible as the buffer     clearing code split got it backwards. Fixing that is possible but not corrupting the state in the first     place is more robust. Avoid corruption of the kernel XSAVE buffer by using copy_user_to_xstate() which     validates the XSAVE header contents before copying the actual states to the kernel. copy_user_to_xstate()     was previously only called for compacted-format kernel buffers, but it works for both compacted and non-     compacted forms. Using it for the non-compacted form is slower because of multiple __copy_from_user()     operations, but that cost is less important than robust code in an already slow path. [ Changelog polished     by Dave Hansen ] (CVE-2021-47227)

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

ID	名称	产品	系列	发布时间	最近更新时间	严重程度
229818	Linux Distros 未修补的漏洞：CVE-2021-47227	Nessus	Misc.	2025/3/5	2026/7/17	medium
160459	Amazon Linux 2核心 --advisory ALAS2KERNEL-5。10-2022-002 (ALASKERNEL-5.10-2022-002)	Nessus	Amazon Linux Local Security Checks	2022/5/2	2026/2/9	high
160459	Amazon Linux 2 内核 --advisory ALAS2KERNEL-5。10-2022-002 (ALASKERNEL-5.10-2022-002)	Nessus	Amazon Linux Local Security Checks	2022/5/2	2026/2/9	high
229818	Linux Distros 未修補的弱點：CVE-2021-47227	Nessus	Misc.	2025/3/5	2026/7/17	medium
160459	Amazon Linux 2kernel、 --advisory ALAS2KERNEL-5。10-2022-002 ALASKERNEL-5.10-2022-002	Nessus	Amazon Linux Local Security Checks	2022/5/2	2026/2/9	high
200930	SUSE SLES15 セキュリティ更新 : kernel (SUSE-SU-2024:2185-1)	Nessus	SuSE Local Security Checks	2024/6/25	2026/6/26	critical
229818	Linux Distros のパッチ未適用の脆弱性: CVE-2021-47227	Nessus	Misc.	2025/3/5	2026/7/17	medium
272875	Unity Linux 20.1070a Security Update: kernel (UTSA-2025-989287)	Nessus	Unity Linux Local Security Checks	2025/11/5	2025/11/5	medium
200930	SUSE SLES15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2024:2185-1)	Nessus	SuSE Local Security Checks	2024/6/25	2026/6/26	critical
268079	Unity Linux 20.1070e Security Update: kernel (UTSA-2025-986769)	Nessus	Unity Linux Local Security Checks	2025/10/7	2025/10/15	medium
229818	Linux Distros Unpatched Vulnerability : CVE-2021-47227	Nessus	Misc.	2025/3/5	2026/7/17	medium
239342	TencentOS Server 4: kernel (TSSA-2024:0981)	Nessus	Tencent Local Security Checks	2025/6/16	2025/12/4	high
160459	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2022-002 (ALASKERNEL-5.10-2022-002)	Nessus	Amazon Linux Local Security Checks	2022/5/2	2026/2/9	high

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