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CVE-2024-42235 (GCVE-0-2024-42235)

Vulnerability from cvelistv5 – Published: 2024-08-07 15:14 – Updated: 2026-08-05 11:36
VLAI
Title
s390/mm: Add NULL pointer check to crst_table_free() base_crst_free()
Summary
In the Linux kernel, the following vulnerability has been resolved: s390/mm: Add NULL pointer check to crst_table_free() base_crst_free() crst_table_free() used to work with NULL pointers before the conversion to ptdescs. Since crst_table_free() can be called with a NULL pointer (error handling in crst_table_upgrade() add an explicit check. Also add the same check to base_crst_free() for consistency reasons. In real life this should not happen, since order two GFP_KERNEL allocations will not fail, unless FAIL_PAGE_ALLOC is enabled and used.
Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-09-10 16:14 UTC
Assigner
References
Impacted products
Vendor Product Version CPE status
Linux Linux Affected: 6326c26c1514757242829b292b26eac589013200 , < 794fa52b94637d6b2e8c9474fbe3983af5c9f046 (git)
Affected: 6326c26c1514757242829b292b26eac589013200 , < f80bd8bb6f380bc265834c46058d38b34174813e (git)
Affected: 6326c26c1514757242829b292b26eac589013200 , < b5efb63acf7bddaf20eacfcac654c25c446eabe8 (git)
guessed Create a notification for this product.
Linux Linux Affected: 6.6
Unaffected: 0 , < 6.6 (semver)
Unaffected: 6.6.41 , ≤ 6.6.* (semver)
Unaffected: 6.9.10 , ≤ 6.9.* (semver)
Unaffected: 6.10 , ≤ * (original_commit_for_fix)
guessed Create a notification for this product.
Show details on NVD website
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        "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "vulnStatus": "Modified",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-476"
              }
            ],
            "source": "nvd@nist.gov",
            "type": "Primary"
          }
        ]
      }
    },
    "redhat_vex": {
      "aggregate_severity": "Low",
      "current_release_date": "2026-08-04T22:42:59+00:00",
      "cve": "CVE-2024-42235",
      "id": "CVE-2024-42235",
      "initial_release_date": "2024-08-07T00:00:00+00:00",
      "product_status:known_not_affected": "198",
      "source": "Red Hat CSAF VEX",
      "status": "final",
      "title": "kernel: s390/mm: Add NULL pointer check to crst_table_free() base_crst_free()",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2024/cve-2024-42235.json",
      "version": "3"
    },
    "suse_vex": {
      "aggregate_severity": "moderate",
      "current_release_date": "2026-08-31T00:34:34Z",
      "cve": "CVE-2024-42235",
      "id": "CVE-2024-42235",
      "initial_release_date": "2024-08-08T02:20:32Z",
      "product_status:known_not_affected": "372",
      "source": "SUSE CSAF VEX",
      "status": "interim",
      "title": "SUSE CVE CVE-2024-42235",
      "url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2024-42235.json",
      "version": "20"
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2024-42235",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "no"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2024-09-10T16:14:07.518719Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2024-09-11T12:42:24.295Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unaffected",
              "product": "Linux",
              "programFiles": [
                "arch/s390/mm/pgalloc.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
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                  "lessThan": "794fa52b94637d6b2e8c9474fbe3983af5c9f046",
                  "status": "affected",
                  "version": "6326c26c1514757242829b292b26eac589013200",
                  "versionType": "git"
                },
                {
                  "lessThan": "f80bd8bb6f380bc265834c46058d38b34174813e",
                  "status": "affected",
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                  "versionType": "git"
                },
                {
                  "lessThan": "b5efb63acf7bddaf20eacfcac654c25c446eabe8",
                  "status": "affected",
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            },
            {
              "defaultStatus": "affected",
              "product": "Linux",
              "programFiles": [
                "arch/s390/mm/pgalloc.c"
              ],
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "vendor": "Linux",
              "versions": [
                {
                  "status": "affected",
                  "version": "6.6"
                },
                {
                  "lessThan": "6.6",
                  "status": "unaffected",
                  "version": "0",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.6.*",
                  "status": "unaffected",
                  "version": "6.6.41",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "6.9.*",
                  "status": "unaffected",
                  "version": "6.9.10",
                  "versionType": "semver"
                },
                {
                  "lessThanOrEqual": "*",
                  "status": "unaffected",
                  "version": "6.10",
                  "versionType": "original_commit_for_fix"
                }
              ]
            }
          ],
          "cpeApplicability": [
            {
              "nodes": [
                {
                  "cpeMatch": [
                    {
                      "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                      "versionStartIncluding": "6.6",
                      "vulnerable": true
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                    },
                    {
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                      "versionStartIncluding": "6.6",
                      "vulnerable": true
                    }
                  ],
                  "negate": false,
                  "operator": "OR"
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            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/mm: Add NULL pointer check to crst_table_free() base_crst_free()\n\ncrst_table_free() used to work with NULL pointers before the conversion\nto ptdescs.  Since crst_table_free() can be called with a NULL pointer\n(error handling in crst_table_upgrade() add an explicit check.\n\nAlso add the same check to base_crst_free() for consistency reasons.\n\nIn real life this should not happen, since order two GFP_KERNEL\nallocations will not fail, unless FAIL_PAGE_ALLOC is enabled and used."
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2025-05-04T09:24:45.510Z",
            "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
            "shortName": "Linux"
          },
          "references": [
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              "url": "https://git.kernel.org/stable/c/794fa52b94637d6b2e8c9474fbe3983af5c9f046"
            },
            {
              "url": "https://git.kernel.org/stable/c/f80bd8bb6f380bc265834c46058d38b34174813e"
            },
            {
              "url": "https://git.kernel.org/stable/c/b5efb63acf7bddaf20eacfcac654c25c446eabe8"
            }
          ],
          "title": "s390/mm: Add NULL pointer check to crst_table_free() base_crst_free()",
          "x_generator": {
            "engine": "bippy-1.2.0"
          }
        }
      },
      "cveMetadata": {
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "assignerShortName": "Linux",
        "cveId": "CVE-2024-42235",
        "datePublished": "2024-08-07T15:14:25.070Z",
        "dateReserved": "2024-07-30T07:40:12.252Z",
        "dateUpdated": "2025-05-04T09:24:45.510Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}



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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.


Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.