CVE-2025-40202 (GCVE-0-2025-40202)

Vulnerability from cvelistv5 – Published: 2025-11-12 21:56 – Updated: 2025-12-01 06:20
VLAI?
Summary
In the Linux kernel, the following vulnerability has been resolved: ipmi: Rework user message limit handling The limit on the number of user messages had a number of issues, improper counting in some cases and a use after free. Restructure how this is all done to handle more in the receive message allocation routine, so all refcouting and user message limit counts are done in that routine. It's a lot cleaner and safer.
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82 , < f63723ca7d7623f9dae1990973cd158671f03c56 (git)
Affected: 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82 , < 348121b29594d42d1635648fd3ed31dfa25351d5 (git)
Affected: 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82 , < 53d6e403affbf6df2c859a0ea00ccfc1e72090ca (git)
Affected: 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82 , < 0ed73be9a2547ffb9b5c1d879ad9bfab73d920b5 (git)
Affected: 8e76741c3d8b20dfa2d6c30fa10ff927cfd93d82 , < b52da4054ee0bf9ecb44996f2c83236ff50b3812 (git)
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    Linux Linux Affected: 5.19
Unaffected: 0 , < 5.19 (semver)
Unaffected: 6.1.157 , ≤ 6.1.* (semver)
Unaffected: 6.6.113 , ≤ 6.6.* (semver)
Unaffected: 6.12.54 , ≤ 6.12.* (semver)
Unaffected: 6.17.4 , ≤ 6.17.* (semver)
Unaffected: 6.18 , ≤ * (original_commit_for_fix)
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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/char/ipmi/ipmi_msghandler.c"
          ],
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          "vendor": "Linux",
          "versions": [
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              "lessThanOrEqual": "6.12.*",
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            {
              "lessThanOrEqual": "6.17.*",
              "status": "unaffected",
              "version": "6.17.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "6.18",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
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              ],
              "negate": false,
              "operator": "OR"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipmi: Rework user message limit handling\n\nThe limit on the number of user messages had a number of issues,\nimproper counting in some cases and a use after free.\n\nRestructure how this is all done to handle more in the receive message\nallocation routine, so all refcouting and user message limit counts\nare done in that routine.  It\u0027s a lot cleaner and safer."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-01T06:20:05.043Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f63723ca7d7623f9dae1990973cd158671f03c56"
        },
        {
          "url": "https://git.kernel.org/stable/c/348121b29594d42d1635648fd3ed31dfa25351d5"
        },
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        },
        {
          "url": "https://git.kernel.org/stable/c/b52da4054ee0bf9ecb44996f2c83236ff50b3812"
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      ],
      "title": "ipmi: Rework user message limit handling",
      "x_generator": {
        "engine": "bippy-1.2.0"
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    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40202",
    "datePublished": "2025-11-12T21:56:34.527Z",
    "dateReserved": "2025-04-16T07:20:57.179Z",
    "dateUpdated": "2025-12-01T06:20:05.043Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
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  }
}


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Sightings

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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.