CVE-2026-46128 (GCVE-0-2026-46128)

Vulnerability from cvelistv5 – Published: 2026-05-28 09:35 – Updated: 2026-05-28 09:35
VLAI
Title
ipmi: Check event message buffer response for bad data
Summary
In the Linux kernel, the following vulnerability has been resolved: ipmi: Check event message buffer response for bad data The event message buffer response data size got checked later when processing, but check it right after the response comes back. It appears some BMCs may return an empty message instead of an error when fetching events. There are apparently some new BMCs that make this error, so we need to compensate.
Severity
No CVSS data available.
Assigner
Impacted products
Vendor Product Version
Linux Linux Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 2418e4b21fb1355504d095da5d5f0a210564a43d (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 7f7ada72c07a83b46045ddfeee526bd9e2e3c8f0 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 42432b579a594b66ac32e5e7b7c26e6bc578ec89 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 24269264c3d59a49eb09b10af2c75b14f2931482 (git)
Affected: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 , < 36920f30e78e69df01f9691c470b6f3ba8aebf98 (git)
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Linux Linux Affected: 2.6.12
Unaffected: 0 , < 2.6.12 (semver)
Unaffected: 6.6.140 , ≤ 6.6.* (semver)
Unaffected: 6.12.88 , ≤ 6.12.* (semver)
Unaffected: 6.18.30 , ≤ 6.18.* (semver)
Unaffected: 7.0.7 , ≤ 7.0.* (semver)
Unaffected: 7.1-rc3 , ≤ * (original_commit_for_fix)
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Show details on NVD website

{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "drivers/char/ipmi/ipmi_si_intf.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
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              "status": "affected",
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              "versionType": "git"
            },
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              "status": "affected",
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              "versionType": "git"
            },
            {
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              "status": "affected",
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              "versionType": "git"
            },
            {
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              "status": "affected",
              "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
              "versionType": "git"
            },
            {
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              "status": "affected",
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              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "affected",
          "product": "Linux",
          "programFiles": [
            "drivers/char/ipmi/ipmi_si_intf.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "2.6.12"
            },
            {
              "lessThan": "2.6.12",
              "status": "unaffected",
              "version": "0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.6.*",
              "status": "unaffected",
              "version": "6.6.140",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.12.*",
              "status": "unaffected",
              "version": "6.12.88",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "6.18.*",
              "status": "unaffected",
              "version": "6.18.30",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "7.0.*",
              "status": "unaffected",
              "version": "7.0.7",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.1-rc3",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.6.140",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.12.88",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "6.18.30",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.0.7",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                },
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionEndExcluding": "7.1-rc3",
                  "versionStartIncluding": "2.6.12",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipmi: Check event message buffer response for bad data\n\nThe event message buffer response data size got checked later when\nprocessing, but check it right after the response comes back.  It\nappears some BMCs may return an empty message instead of an error\nwhen fetching events.\n\nThere are apparently some new BMCs that make this error, so we need to\ncompensate."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-28T09:35:43.326Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/2418e4b21fb1355504d095da5d5f0a210564a43d"
        },
        {
          "url": "https://git.kernel.org/stable/c/7f7ada72c07a83b46045ddfeee526bd9e2e3c8f0"
        },
        {
          "url": "https://git.kernel.org/stable/c/42432b579a594b66ac32e5e7b7c26e6bc578ec89"
        },
        {
          "url": "https://git.kernel.org/stable/c/24269264c3d59a49eb09b10af2c75b14f2931482"
        },
        {
          "url": "https://git.kernel.org/stable/c/36920f30e78e69df01f9691c470b6f3ba8aebf98"
        }
      ],
      "title": "ipmi: Check event message buffer response for bad data",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-46128",
    "datePublished": "2026-05-28T09:35:43.326Z",
    "dateReserved": "2026-05-13T15:03:33.099Z",
    "dateUpdated": "2026-05-28T09:35:43.326Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-46128",
      "date": "2026-05-29",
      "epss": "0.00018",
      "percentile": "0.05164"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-46128\",\"sourceIdentifier\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"published\":\"2026-05-28T10:16:28.373\",\"lastModified\":\"2026-05-28T13:44:01.663\",\"vulnStatus\":\"Awaiting Analysis\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In the Linux kernel, the following vulnerability has been resolved:\\n\\nipmi: Check event message buffer response for bad data\\n\\nThe event message buffer response data size got checked later when\\nprocessing, but check it right after the response comes back.  It\\nappears some BMCs may return an empty message instead of an error\\nwhen fetching events.\\n\\nThere are apparently some new BMCs that make this error, so we need to\\ncompensate.\"}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/2418e4b21fb1355504d095da5d5f0a210564a43d\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/24269264c3d59a49eb09b10af2c75b14f2931482\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/36920f30e78e69df01f9691c470b6f3ba8aebf98\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/42432b579a594b66ac32e5e7b7c26e6bc578ec89\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7f7ada72c07a83b46045ddfeee526bd9e2e3c8f0\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}"
  }
}


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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
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