CVE-2023-53614 (GCVE-0-2023-53614)
Vulnerability from cvelistv5
Published
2025-10-04 15:44
Modified
2025-10-04 15:44
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: mm/ksm: fix race with VMA iteration and mm_struct teardown exit_mmap() will tear down the VMAs and maple tree with the mmap_lock held in write mode. Ensure that the maple tree is still valid by checking ksm_test_exit() after taking the mmap_lock in read mode, but before the for_each_vma() iterator dereferences a destroyed maple tree. Since the maple tree is destroyed, the flags telling lockdep to check an external lock has been cleared. Skip the for_each_vma() iterator to avoid dereferencing a maple tree without the external lock flag, which would create a lockdep warning.
References
Impacted products
Vendor Product Version
Linux Linux Version: a5f18ba0727656bd1fe3bcdb0d563f81790f9a04
Version: a5f18ba0727656bd1fe3bcdb0d563f81790f9a04
Version: a5f18ba0727656bd1fe3bcdb0d563f81790f9a04
 Create a notification for this product.
Show details on NVD website

To clipboard 

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "mm/ksm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "286b0cab31bac29960e5684f6fb331d42f03b363",
              "status": "affected",
              "version": "a5f18ba0727656bd1fe3bcdb0d563f81790f9a04",
              "versionType": "git"
            },
            {
              "lessThan": "b4f664ffd8f78c05a1fd542a28bc5a11e994c014",
              "status": "affected",
              "version": "a5f18ba0727656bd1fe3bcdb0d563f81790f9a04",
              "versionType": "git"
            },
            {
              "lessThan": "6db504ce55bdbc575723938fc480713c9183f6a2",
              "status": "affected",
              "version": "a5f18ba0727656bd1fe3bcdb0d563f81790f9a04",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "mm/ksm.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.1"
            },
            {
              "lessThan": "6.1",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.1.*",
              "status": "unaffected",
              "version": "6.1.22",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.2.*",
              "status": "unaffected",
              "version": "6.2.9",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.1.22",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.2.9",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.3",
                  "versionStartIncluding": "6.1",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/ksm: fix race with VMA iteration and mm_struct teardown\n\nexit_mmap() will tear down the VMAs and maple tree with the mmap_lock held\nin write mode.  Ensure that the maple tree is still valid by checking\nksm_test_exit() after taking the mmap_lock in read mode, but before the\nfor_each_vma() iterator dereferences a destroyed maple tree.\n\nSince the maple tree is destroyed, the flags telling lockdep to check an\nexternal lock has been cleared.  Skip the for_each_vma() iterator to avoid\ndereferencing a maple tree without the external lock flag, which would\ncreate a lockdep warning."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-10-04T15:44:21.671Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/286b0cab31bac29960e5684f6fb331d42f03b363"
        },
        {
          "url": "https://git.kernel.org/stable/c/b4f664ffd8f78c05a1fd542a28bc5a11e994c014"
        },
        {
          "url": "https://git.kernel.org/stable/c/6db504ce55bdbc575723938fc480713c9183f6a2"
        }
      ],
      "title": "mm/ksm: fix race with VMA iteration and mm_struct teardown",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2023-53614",
    "datePublished": "2025-10-04T15:44:21.671Z",
    "dateReserved": "2025-10-04T15:40:38.481Z",
    "dateUpdated": "2025-10-04T15:44:21.671Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2023-53614\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-10-04T16:15:58.227\",\"lastModified\":\"2025-10-06T14:56:21.733\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nmm/ksm: fix race with VMA iteration and mm_struct teardown\\n\\nexit_mmap() will tear down the VMAs and maple tree with the mmap_lock held\\nin write mode.  Ensure that the maple tree is still valid by checking\\nksm_test_exit() after taking the mmap_lock in read mode, but before the\\nfor_each_vma() iterator dereferences a destroyed maple tree.\\n\\nSince the maple tree is destroyed, the flags telling lockdep to check an\\nexternal lock has been cleared.  Skip the for_each_vma() iterator to avoid\\ndereferencing a maple tree without the external lock flag, which would\\ncreate a lockdep warning.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/286b0cab31bac29960e5684f6fb331d42f03b363\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/6db504ce55bdbc575723938fc480713c9183f6a2\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b4f664ffd8f78c05a1fd542a28bc5a11e994c014\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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 seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.