CVE-2026-98893 (GCVE-0-2026-98893)
Vulnerability from cvelistv5
Published
2026-10-23 11:37
Modified
2026-10-26 06:56
Severity ?
Summary
In the Linux kernel, the following vulnerability has been resolved: firmware: arm_scmi: Validate SENSOR_UPDATE payload size SENSOR_UPDATE carries one or more sensor readings after the fixed notification header. The parser derives the expected reading count from the sensor description, but it did not verify that the received payload contains those entries before parsing them. Reject truncated update notifications before reading the variable array.
References
Impacted products
Vendor Product Version
Linux Linux Version: e3811190acf85c63518fbddaa28bcbfab2baa58d
Version: e3811190acf85c63518fbddaa28bcbfab2baa58d
Version: e3811190acf85c63518fbddaa28bcbfab2baa58d
Version: e3811190acf85c63518fbddaa28bcbfab2baa58d
Version: e3811190acf85c63518fbddaa28bcbfab2baa58d
Version: e3811190acf85c63518fbddaa28bcbfab2baa58d
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{
  "containers": {
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        {
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          "product": "Linux",
          "programFiles": [
            "drivers/firmware/arm_scmi/sensors.c"
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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": "0",
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              "status": "unaffected",
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            },
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            },
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              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "*",
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix"
            }
          ]
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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              "negate": false,
              "operator": "OR"
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          ]
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware: arm_scmi: Validate SENSOR_UPDATE payload size\n\nSENSOR_UPDATE carries one or more sensor readings after the fixed\nnotification header. The parser derives the expected reading count\nfrom the sensor description, but it did not verify that the received\npayload contains those entries before parsing them.\n\nReject truncated update notifications before reading the variable\narray."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-26T06:56:19.302Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/e543d60f966a5f5c92298720c2fd1810f85a6be3"
        },
        {
          "url": "https://git.kernel.org/stable/c/87a72e75f7560ea45cd28870194eaa153dd19e75"
        },
        {
          "url": "https://git.kernel.org/stable/c/1bbe431fc59704d012660647516f6f94ddd82564"
        },
        {
          "url": "https://git.kernel.org/stable/c/c148ff2f5a168e0bc41d801efca6ee35a376cfcb"
        },
        {
          "url": "https://git.kernel.org/stable/c/767789a58ae0d65ec3028e5b5b4da82210355d00"
        },
        {
          "url": "https://git.kernel.org/stable/c/32bc5496b48174dbca1f187f710955ee4d9527a1"
        }
      ],
      "title": "firmware: arm_scmi: Validate SENSOR_UPDATE payload size",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2026-98893",
    "datePublished": "2026-10-23T11:37:54.017Z",
    "dateReserved": "2026-09-25T10:25:14.378Z",
    "dateUpdated": "2026-10-26T06:56:19.302Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}


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