CVE-2025-40192 (GCVE-0-2025-40192)

Vulnerability from cvelistv5 – Published: 2025-11-12 21:56 – Updated: 2026-05-11 21:44
VLAI
Title
Revert "ipmi: fix msg stack when IPMI is disconnected"
Summary
In the Linux kernel, the following vulnerability has been resolved: Revert "ipmi: fix msg stack when IPMI is disconnected" This reverts commit c608966f3f9c2dca596967501d00753282b395fc. This patch has a subtle bug that can cause the IPMI driver to go into an infinite loop if the BMC misbehaves in a certain way. Apparently certain BMCs do misbehave this way because several reports have come in recently about this.
Severity
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: c608966f3f9c2dca596967501d00753282b395fc , < f4aab940ae9eb3ba32e5332b35703673f00d7f37 (git)
Affected: c608966f3f9c2dca596967501d00753282b395fc , < b9cc7155e65f6feca51bfedd543b9bd300e2be2b (git)
Affected: c608966f3f9c2dca596967501d00753282b395fc , < 8cf5c24533b8058910fcb83a25a9cf0306383780 (git)
Affected: c608966f3f9c2dca596967501d00753282b395fc , < 5d09ee1bec870263f4ace439402ea840503b503b (git)
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Linux Linux Affected: 6.2
Unaffected: 0 , < 6.2 (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": {
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      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/char/ipmi/ipmi_kcs_sm.c"
          ],
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          "vendor": "Linux",
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            },
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              "versionType": "git"
            }
          ]
        },
        {
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          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
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              "version": "6.2"
            },
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              "status": "unaffected",
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              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
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              "version": "6.12.54",
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            },
            {
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              "version": "6.17.4",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
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            }
          ]
        }
      ],
      "cpeApplicability": [
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          "nodes": [
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              "cpeMatch": [
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                },
                {
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                  "versionEndExcluding": "6.18",
                  "versionStartIncluding": "6.2",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRevert \"ipmi: fix msg stack when IPMI is disconnected\"\n\nThis reverts commit c608966f3f9c2dca596967501d00753282b395fc.\n\nThis patch has a subtle bug that can cause the IPMI driver to go into an\ninfinite loop if the BMC misbehaves in a certain way.  Apparently\ncertain BMCs do misbehave this way because several reports have come in\nrecently about this."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-11T21:44:32.428Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/f4aab940ae9eb3ba32e5332b35703673f00d7f37"
        },
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          "url": "https://git.kernel.org/stable/c/b9cc7155e65f6feca51bfedd543b9bd300e2be2b"
        },
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        },
        {
          "url": "https://git.kernel.org/stable/c/5d09ee1bec870263f4ace439402ea840503b503b"
        }
      ],
      "title": "Revert \"ipmi: fix msg stack when IPMI is disconnected\"",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-40192",
    "datePublished": "2025-11-12T21:56:31.476Z",
    "dateReserved": "2025-04-16T07:20:57.177Z",
    "dateUpdated": "2026-05-11T21:44:32.428Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-40192",
      "date": "2026-05-27",
      "epss": "0.00028",
      "percentile": "0.08294"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-40192\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2025-11-12T22:15:46.193\",\"lastModified\":\"2025-11-14T16:42:30.503\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nRevert \\\"ipmi: fix msg stack when IPMI is disconnected\\\"\\n\\nThis reverts commit c608966f3f9c2dca596967501d00753282b395fc.\\n\\nThis patch has a subtle bug that can cause the IPMI driver to go into an\\ninfinite loop if the BMC misbehaves in a certain way.  Apparently\\ncertain BMCs do misbehave this way because several reports have come in\\nrecently about this.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/5d09ee1bec870263f4ace439402ea840503b503b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/8cf5c24533b8058910fcb83a25a9cf0306383780\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/b9cc7155e65f6feca51bfedd543b9bd300e2be2b\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/f4aab940ae9eb3ba32e5332b35703673f00d7f37\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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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

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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.