CVE-2025-22045 (GCVE-0-2025-22045)

Vulnerability from cvelistv5 – Published: 2025-04-16 14:12 – Updated: 2025-11-03 19:41
VLAI?
Title
x86/mm: Fix flush_tlb_range() when used for zapping normal PMDs
Summary
In the Linux kernel, the following vulnerability has been resolved: x86/mm: Fix flush_tlb_range() when used for zapping normal PMDs On the following path, flush_tlb_range() can be used for zapping normal PMD entries (PMD entries that point to page tables) together with the PTE entries in the pointed-to page table: collapse_pte_mapped_thp pmdp_collapse_flush flush_tlb_range The arm64 version of flush_tlb_range() has a comment describing that it can be used for page table removal, and does not use any last-level invalidation optimizations. Fix the X86 version by making it behave the same way. Currently, X86 only uses this information for the following two purposes, which I think means the issue doesn't have much impact: - In native_flush_tlb_multi() for checking if lazy TLB CPUs need to be IPI'd to avoid issues with speculative page table walks. - In Hyper-V TLB paravirtualization, again for lazy TLB stuff. The patch "x86/mm: only invalidate final translations with INVLPGB" which is currently under review (see <https://lore.kernel.org/all/20241230175550.4046587-13-riel@surriel.com/>) would probably be making the impact of this a lot worse.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 016c4d92cd16f569c6485ae62b076c1a4b779536 , < 618d5612ecb7bfc1c85342daafeb2b47e29e77a3 (git)
Affected: 016c4d92cd16f569c6485ae62b076c1a4b779536 , < 556d446068f90981e5d71ca686bdaccdd545d491 (git)
Affected: 016c4d92cd16f569c6485ae62b076c1a4b779536 , < 0a8f806ea6b5dd64b3d1f05ff774817d5f7ddbd1 (git)
Affected: 016c4d92cd16f569c6485ae62b076c1a4b779536 , < 0708fd6bd8161871bfbadced2ca4319b84ab44fe (git)
Affected: 016c4d92cd16f569c6485ae62b076c1a4b779536 , < 7085895c59e4057ffae17f58990ccb630087d0d2 (git)
Affected: 016c4d92cd16f569c6485ae62b076c1a4b779536 , < 93224deb50a8d20df3884f3672ce9f982129aa50 (git)
Affected: 016c4d92cd16f569c6485ae62b076c1a4b779536 , < 320ac1af4c0bdb92c864dc9250d1329234820edf (git)
Affected: 016c4d92cd16f569c6485ae62b076c1a4b779536 , < 78d6f9a9eb2a5da6fcbd76d6191d24b0dcc321be (git)
Affected: 016c4d92cd16f569c6485ae62b076c1a4b779536 , < 3ef938c3503563bfc2ac15083557f880d29c2e64 (git)
Create a notification for this product.
    Linux Linux Affected: 4.20
Unaffected: 0 , < 4.20 (semver)
Unaffected: 5.4.292 , ≤ 5.4.* (semver)
Unaffected: 5.10.236 , ≤ 5.10.* (semver)
Unaffected: 5.15.180 , ≤ 5.15.* (semver)
Unaffected: 6.1.134 , ≤ 6.1.* (semver)
Unaffected: 6.6.87 , ≤ 6.6.* (semver)
Unaffected: 6.12.23 , ≤ 6.12.* (semver)
Unaffected: 6.13.11 , ≤ 6.13.* (semver)
Unaffected: 6.14.2 , ≤ 6.14.* (semver)
Unaffected: 6.15 , ≤ * (original_commit_for_fix)
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2025-11-03T19:41:30.092Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00045.html"
          },
          {
            "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/x86/include/asm/tlbflush.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "618d5612ecb7bfc1c85342daafeb2b47e29e77a3",
              "status": "affected",
              "version": "016c4d92cd16f569c6485ae62b076c1a4b779536",
              "versionType": "git"
            },
            {
              "lessThan": "556d446068f90981e5d71ca686bdaccdd545d491",
              "status": "affected",
              "version": "016c4d92cd16f569c6485ae62b076c1a4b779536",
              "versionType": "git"
            },
            {
              "lessThan": "0a8f806ea6b5dd64b3d1f05ff774817d5f7ddbd1",
              "status": "affected",
              "version": "016c4d92cd16f569c6485ae62b076c1a4b779536",
              "versionType": "git"
            },
            {
              "lessThan": "0708fd6bd8161871bfbadced2ca4319b84ab44fe",
              "status": "affected",
              "version": "016c4d92cd16f569c6485ae62b076c1a4b779536",
              "versionType": "git"
            },
            {
              "lessThan": "7085895c59e4057ffae17f58990ccb630087d0d2",
              "status": "affected",
              "version": "016c4d92cd16f569c6485ae62b076c1a4b779536",
              "versionType": "git"
            },
            {
              "lessThan": "93224deb50a8d20df3884f3672ce9f982129aa50",
              "status": "affected",
              "version": "016c4d92cd16f569c6485ae62b076c1a4b779536",
              "versionType": "git"
            },
            {
              "lessThan": "320ac1af4c0bdb92c864dc9250d1329234820edf",
              "status": "affected",
              "version": "016c4d92cd16f569c6485ae62b076c1a4b779536",
              "versionType": "git"
            },
            {
              "lessThan": "78d6f9a9eb2a5da6fcbd76d6191d24b0dcc321be",
              "status": "affected",
              "version": "016c4d92cd16f569c6485ae62b076c1a4b779536",
              "versionType": "git"
            },
            {
              "lessThan": "3ef938c3503563bfc2ac15083557f880d29c2e64",
              "status": "affected",
              "version": "016c4d92cd16f569c6485ae62b076c1a4b779536",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "arch/x86/include/asm/tlbflush.h"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.20"
            },
            {
              "lessThan": "4.20",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.4.*",
              "status": "unaffected",
              "version": "5.4.292",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.10.*",
              "status": "unaffected",
              "version": "5.10.236",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "5.15.*",
              "status": "unaffected",
              "version": "5.15.180",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.134",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.87",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.23",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.13.*",
              "status": "unaffected",
              "version": "6.13.11",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.14.*",
              "status": "unaffected",
              "version": "6.14.2",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.15",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.4.292",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.10.236",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "5.15.180",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.134",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.87",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.23",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.13.11",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.14.2",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.15",
                  "versionStartIncluding": "4.20",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/mm: Fix flush_tlb_range() when used for zapping normal PMDs\n\nOn the following path, flush_tlb_range() can be used for zapping normal\nPMD entries (PMD entries that point to page tables) together with the PTE\nentries in the pointed-to page table:\n\n    collapse_pte_mapped_thp\n      pmdp_collapse_flush\n        flush_tlb_range\n\nThe arm64 version of flush_tlb_range() has a comment describing that it can\nbe used for page table removal, and does not use any last-level\ninvalidation optimizations. Fix the X86 version by making it behave the\nsame way.\n\nCurrently, X86 only uses this information for the following two purposes,\nwhich I think means the issue doesn\u0027t have much impact:\n\n - In native_flush_tlb_multi() for checking if lazy TLB CPUs need to be\n   IPI\u0027d to avoid issues with speculative page table walks.\n - In Hyper-V TLB paravirtualization, again for lazy TLB stuff.\n\nThe patch \"x86/mm: only invalidate final translations with INVLPGB\" which\nis currently under review (see\n\u003chttps://lore.kernel.org/all/20241230175550.4046587-13-riel@surriel.com/\u003e)\nwould probably be making the impact of this a lot worse."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-05-26T05:17:16.433Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/618d5612ecb7bfc1c85342daafeb2b47e29e77a3"
        },
        {
          "url": "https://git.kernel.org/stable/c/556d446068f90981e5d71ca686bdaccdd545d491"
        },
        {
          "url": "https://git.kernel.org/stable/c/0a8f806ea6b5dd64b3d1f05ff774817d5f7ddbd1"
        },
        {
          "url": "https://git.kernel.org/stable/c/0708fd6bd8161871bfbadced2ca4319b84ab44fe"
        },
        {
          "url": "https://git.kernel.org/stable/c/7085895c59e4057ffae17f58990ccb630087d0d2"
        },
        {
          "url": "https://git.kernel.org/stable/c/93224deb50a8d20df3884f3672ce9f982129aa50"
        },
        {
          "url": "https://git.kernel.org/stable/c/320ac1af4c0bdb92c864dc9250d1329234820edf"
        },
        {
          "url": "https://git.kernel.org/stable/c/78d6f9a9eb2a5da6fcbd76d6191d24b0dcc321be"
        },
        {
          "url": "https://git.kernel.org/stable/c/3ef938c3503563bfc2ac15083557f880d29c2e64"
        }
      ],
      "title": "x86/mm: Fix flush_tlb_range() when used for zapping normal PMDs",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-22045",
    "datePublished": "2025-04-16T14:12:05.849Z",
    "dateReserved": "2024-12-29T08:45:45.810Z",
    "dateUpdated": "2025-11-03T19:41:30.092Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.