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

  - mm/hugetlb: fix folio is still mapped when deleted Migration may be raced with fallocating hole.
    remove_inode_single_folio will unmap the folio if the folio is still mapped. However, it's called without     folio lock. If the folio is migrated and the mapped pte has been converted to migration entry,     folio_mapped() returns false, and won't unmap it. Due to extra refcount held by remove_inode_single_folio,     migration fails, restores migration entry to normal pte, and the folio is mapped again. As a result, we     triggered BUG in filemap_unaccount_folio. The log is as follows: BUG: Bad page cache in process hugetlb     pfn:156c00 page: refcount:515 mapcount:0 mapping:0000000099fef6e1 index:0x0 pfn:0x156c00 head: order:9     mapcount:1 entire_mapcount:1 nr_pages_mapped:0 pincount:0 aops:hugetlbfs_aops ino:dcc dentry     name(?):my_hugepage_file flags: 0x17ffffc00000c1(locked|waiters|head|node=0|zone=2|lastcpupid=0x1fffff)     page_type: f4(hugetlb) page dumped because: still mapped when deleted CPU: 1 UID: 0 PID: 395 Comm: hugetlb     Not tainted 6.17.0-rc5-00044-g7aac71907bde-dirty #484 NONE Hardware name: QEMU Ubuntu 24.04 PC (i440FX +     PIIX, 1996), BIOS 0.0.0 02/06/2015 Call Trace: <TASK> dump_stack_lvl+0x4f/0x70     filemap_unaccount_folio+0xc4/0x1c0 __filemap_remove_folio+0x38/0x1c0 filemap_remove_folio+0x41/0xd0     remove_inode_hugepages+0x142/0x250 hugetlbfs_fallocate+0x471/0x5a0 vfs_fallocate+0x149/0x380 Hold folio     lock before checking if the folio is mapped to avold race with migration. (CVE-2025-40006)

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

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。

  - mm/hugetlb修正刪除時仍對應作品集的問題。移轉可能會因 fallocate 漏洞而爭用。
    如果仍對應作品集則 remove_inode_single_folio 將取消對應該作品集。但是會在沒有 folio lock 的情況下呼叫它。如果移轉作品集且對應的 pte 已轉換為移轉項目則 folio_mapped() 會傳回 false且不會將其取消對應。由於 remove_inode_single_folio 保留了額外的 refcount 而移轉失敗將移轉項目還原為正常 pte然後再次對應作品集。因此我們觸發了 filemap_unaccount_folio 中的錯誤。記錄如下錯誤: 處理程序 hugetlb pfn:156c00 page: refcount:515 mapcount:0 mapping:0000000099fef6e1 index:0x0 pfn:0x156c00 head: order:9 mapcount:1 whole_mapcount:1 nr_pages_mapped:0 pincount: 0 aops:hugetlbfs_aops ino:dcc dentry name(?):my_hugepage_file flags0x17ffffc00000c1(locked|waiters|head|node=0|zone=2|lastcpupid=0x1fffff) page_type: f4(hugetlb) 頁面已轉儲存因為刪除時仍對應 CPU 1 UID: 0 PID: 395 通訊hugetlb 未受污染 6.17.0-rc5-00044-g7aac71907bde-dirty #484 NONE 硬體名稱: QEMU Ubuntu 24.04 PC (i440FX + PIIX, 1996)、BIOS 0.0.0 02/06/ 2015 Call Trace: <TASK> dump_stack_lvl+0x4f/0x70 filemap_unaccount_folio+0xc4/0x1c0 __filemap_remove_folio+0x38/0x1c0 filemap_remove_folio+0x41/0xd0 remove_inode_hugepages+0x142/0x250 hugetlbfs_fallocate+0x471/0x5a0 vfs_fallocate+0x149/0x380 Hold folio lock before checking if the folio is因移轉而對應至 avold 爭用。 (CVE-2025-40006)

請注意，Nessus 的判定取決於廠商所報告的套件是否存在。

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。

  - mm/hugetlb修复 folio 在删除时仍会映射。 迁移可能与失败分配漏洞争用。
    如果 folio 仍是映射的则 remove_inode_single_folio 将取消映射 folio。但是，在没有 folio 锁定的情况下调用它。如果 folio 已迁移并且映射的 pte 已转换为迁移条目 folio_mapped() 会返回 false并且不会取消映射。由于 remove_inode_single_folio 保留了额外的 refcount因此迁移失败将迁移条目恢复为正常 pte并且 folio 被重新映射。因此在 filemap_unaccount_folio 中触发了缺陷。日志如下BUG进程 hugetlb pfn:156c00 page: refcount:515 mapcount:0 mapping:0000000099fef6e1 index:0x0 pfn:0x156c00 head: order:9 mapcount:1 complete_mapcount:1 nr_pages_mapped:0 pincount 中存在错误页面缓存0 aops:hugetlbfs_aops ino:dcc dentry name(?):my_hugepage_file flags0x17ffffc00000c1(locked|waiters|head|node=0|zone=2|lastcpupid=0x1fffffpage_typef4(hugetlb) 页面转储原因是删除 CPU 时仍然映射1 UID:0 PID:395 Commhugetlb 未受感染 6.17.0-rc5-00044-g7aac71907bde-dirty #484 NONE 硬件名称QEMU Ubuntu 24.04 PC (i440FX + PIIX,1996)、BIOS 0.0.0 02/06/ 2015 Call Trace: <TASK> dump_stack_lvl+0x4f/0x70 filemap_unaccount_folio+0xc4/0x1c0 __filemap_remove_folio+0x38/0x1c0 filemap_remove_folio+0x41/0xd0 remove_inode_hugepages+0x142/0x250 hugetlbfs_fallocate+0x471/0x5a0 vfs_fallocate+0x149/0x380 Hold folio lock before checking if the folio is通过迁移映射到 avol 争用。 (CVE-2025-40006)

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 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。

  - mm/hugetlb削除されたときに folio がまだマッピングされているのを修正します。移行が fallocat ホールと競合する可能性があります。
    remove_inode_single_folio は folio がまだマッピングされている場合、folio をアンマッピングします。ただし、folio lock なしで呼び出されます。folio が移行され、マップされた pte が移行エントリに変換されている場合、folio_mapped() は false を返し、マップ解除しません。remove_inode_single_folio が保持する余分な refcount のために、移行が失敗し、移行エントリを通常の pte に復元し、folio が再度マッピングされます。その結果、filemap_unaccount_folio で BUG を発生させました。ログは次のようになります。BUG: hugetlb pfn:156c00 page: refcount:515 mapcount:0 mapping:0000000099fef6e1 index:0x0 pfn:0x156c00 head: order:9 mapcount:1hole_mapcount:1 nr_pages_mapped:0 pincount 0 aops:hugetlbfs_aops ino:dcc dentry name(?):my_hugepage_file フラグ 0x17ffffc00000c1(locked|waiters|head|node=0|zone=2|lastcpupid=0x1fffff) page_typef4(hugetlb) ページがダンプされた理由CPU 削除時にもマッピングされます1 UID0 PID395 通信hugetlb 汚染されていない 6.17.0-rc5-00044-g7aac71907bde-dirty #484 NONE ハードウェア名QEMU Ubuntu 24.04 PCi440FX + PIIX、1996、BIOS 0.0.0 02/06/ 2015 Call Trace: <TASK> dump_stack_lvl+0x4f/0x70 filemap_unaccount_folio+0xc4/0x1c0 __filemap_remove_folio+0x38/0x1c0 filemap_remove_folio+0x41/0xd0 remove_inode_hugepages+0x142/0x250 hugetlbfs_fallocate+0x471/0x5a0 vfs_fallocate+0x149/0x380 Hold folio lock before checking if the folio is移行による avold 競合にマッピングされた。CVE-2025-40006

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 remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-6053 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-6053-1                   security@debian.org     https://www.debian.org/security/                     Salvatore Bonaccorso     November 11, 2025                     https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : linux     CVE ID         : CVE-2025-21861 CVE-2025-39929 CVE-2025-39931 CVE-2025-39934                      CVE-2025-39937 CVE-2025-39938 CVE-2025-39942 CVE-2025-39943                      CVE-2025-39944 CVE-2025-39945 CVE-2025-39946 CVE-2025-39949                      CVE-2025-39951 CVE-2025-39953 CVE-2025-39955 CVE-2025-39957                      CVE-2025-39964 CVE-2025-39967 CVE-2025-39968 CVE-2025-39969                      CVE-2025-39970 CVE-2025-39971 CVE-2025-39972 CVE-2025-39973                      CVE-2025-39977 CVE-2025-39978 CVE-2025-39980 CVE-2025-39982                      CVE-2025-39985 CVE-2025-39986 CVE-2025-39987 CVE-2025-39988                      CVE-2025-39993 CVE-2025-39994 CVE-2025-39995 CVE-2025-39996                      CVE-2025-39998 CVE-2025-40001 CVE-2025-40006 CVE-2025-40008                      CVE-2025-40010 CVE-2025-40011 CVE-2025-40013 CVE-2025-40018                      CVE-2025-40019 CVE-2025-40020 CVE-2025-40021 CVE-2025-40022                      CVE-2025-40026 CVE-2025-40027 CVE-2025-40029 CVE-2025-40030                      CVE-2025-40032 CVE-2025-40035 CVE-2025-40036 CVE-2025-40040                      CVE-2025-40042 CVE-2025-40043 CVE-2025-40044 CVE-2025-40048                      CVE-2025-40049 CVE-2025-40051 CVE-2025-40053 CVE-2025-40055                      CVE-2025-40056 CVE-2025-40060 CVE-2025-40062 CVE-2025-40068                      CVE-2025-40070 CVE-2025-40078 CVE-2025-40080 CVE-2025-40081                      CVE-2025-40084 CVE-2025-40085 CVE-2025-40087 CVE-2025-40088                      CVE-2025-40092 CVE-2025-40093 CVE-2025-40094 CVE-2025-40095                      CVE-2025-40096 CVE-2025-40099 CVE-2025-40100 CVE-2025-40103                      CVE-2025-40104 CVE-2025-40105 CVE-2025-40106 CVE-2025-40107                      CVE-2025-40109

    Several vulnerabilities have been discovered in the Linux kernel that     may lead to a privilege escalation, denial of service or information     leaks.

    For the oldstable distribution (bookworm), these problems have been fixed     in version 6.1.158-1.

    We recommend that you upgrade your linux packages.

    For the detailed security status of linux please refer to its security     tracker page at:
    https://security-tracker.debian.org/tracker/linux

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

Tenable has extracted the preceding description block directly from the Debian 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
271668	Linux Distros Unpatched Vulnerability : CVE-2025-40006	Nessus	Misc.	10/27/2025	10/27/2025	critical
271668	Linux Distros 未修補的弱點：CVE-2025-40006	Nessus	Misc.	10/27/2025	10/27/2025	critical
271668	Linux Distros 未修补的漏洞：CVE-2025-40006	Nessus	Misc.	10/27/2025	10/27/2025	critical
271668	Linux Distros のパッチ未適用の脆弱性: CVE-2025-40006	Nessus	Misc.	10/27/2025	10/27/2025	critical
274816	Debian dsa-6053 : affs-modules-6.1.0-37-4kc-malta-di - security update	Nessus	Debian Local Security Checks	11/11/2025	11/11/2025	medium

Detections

Analytics

Plugins Search

critical

critical

critical

critical

medium