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
Linux Linux Affected: 6326c26c1514757242829b292b26eac589013200 , < 794fa52b94637d6b2e8c9474fbe3983af5c9f046 (git)
Affected: 6326c26c1514757242829b292b26eac589013200 , < f80bd8bb6f380bc265834c46058d38b34174813e (git)
Affected: 6326c26c1514757242829b292b26eac589013200 , < b5efb63acf7bddaf20eacfcac654c25c446eabe8 (git)
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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)
Create a notification for this product.
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    },
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2024-42235\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2024-09-10T16:14:07.518719Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2024-09-11T12:42:24.295Z\"}}], \"cna\": {\"title\": \"s390/mm: Add NULL pointer check to crst_table_free() base_crst_free()\", \"affected\": [{\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6326c26c1514757242829b292b26eac589013200\", \"lessThan\": \"794fa52b94637d6b2e8c9474fbe3983af5c9f046\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"6326c26c1514757242829b292b26eac589013200\", \"lessThan\": \"f80bd8bb6f380bc265834c46058d38b34174813e\", \"versionType\": \"git\"}, {\"status\": \"affected\", \"version\": \"6326c26c1514757242829b292b26eac589013200\", \"lessThan\": \"b5efb63acf7bddaf20eacfcac654c25c446eabe8\", \"versionType\": \"git\"}], \"programFiles\": [\"arch/s390/mm/pgalloc.c\"], \"defaultStatus\": \"unaffected\"}, {\"repo\": \"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\", \"vendor\": \"Linux\", \"product\": \"Linux\", \"versions\": [{\"status\": \"affected\", \"version\": \"6.6\"}, {\"status\": \"unaffected\", \"version\": \"0\", \"lessThan\": \"6.6\", \"versionType\": \"semver\"}, {\"status\": \"unaffected\", \"version\": \"6.6.41\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.6.*\"}, {\"status\": \"unaffected\", \"version\": \"6.9.10\", \"versionType\": \"semver\", \"lessThanOrEqual\": \"6.9.*\"}, {\"status\": \"unaffected\", \"version\": \"6.10\", \"versionType\": \"original_commit_for_fix\", \"lessThanOrEqual\": \"*\"}], \"programFiles\": [\"arch/s390/mm/pgalloc.c\"], \"defaultStatus\": \"affected\"}], \"references\": [{\"url\": \"https://git.kernel.org/stable/c/794fa52b94637d6b2e8c9474fbe3983af5c9f046\"}, {\"url\": \"https://git.kernel.org/stable/c/f80bd8bb6f380bc265834c46058d38b34174813e\"}, {\"url\": \"https://git.kernel.org/stable/c/b5efb63acf7bddaf20eacfcac654c25c446eabe8\"}], \"x_generator\": {\"engine\": \"bippy-1.2.0\"}, \"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.\"}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.6.41\", \"versionStartIncluding\": \"6.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.9.10\", \"versionStartIncluding\": \"6.6\"}, {\"criteria\": \"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"6.10\", \"versionStartIncluding\": \"6.6\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"shortName\": \"Linux\", \"dateUpdated\": \"2025-05-04T09:24:45.510Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2024-42235\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-05-04T09:24:45.510Z\", \"dateReserved\": \"2024-07-30T07:40:12.252Z\", \"assignerOrgId\": \"416baaa9-dc9f-4396-8d5f-8c081fb06d67\", \"datePublished\": \"2024-08-07T15:14:25.070Z\", \"assignerShortName\": \"Linux\"}",
      "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.