CVE-2026-98893

Full vulnerability record from the local CVENow database.

Description

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.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Received

Source identifier

416baaa9-dc9f-4396-8d5f-8c081fb06d67

Published

2026-10-23 12:18:23.207000

Last modified

2026-10-26 07:17:14.523000

View original CVE JSON

{
  "id": "CVE-2026-98893",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-10-23T12:18:23.207",
  "lastModified": "2026-10-26T07:17:14.523",
  "vulnStatus": "Received",
  "cveTags": [],
  "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."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/firmware/arm_scmi/sensors.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "e3811190acf85c63518fbddaa28bcbfab2baa58d",
              "lessThan": "e543d60f966a5f5c92298720c2fd1810f85a6be3",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "e3811190acf85c63518fbddaa28bcbfab2baa58d",
              "lessThan": "87a72e75f7560ea45cd28870194eaa153dd19e75",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "e3811190acf85c63518fbddaa28bcbfab2baa58d",
              "lessThan": "1bbe431fc59704d012660647516f6f94ddd82564",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "e3811190acf85c63518fbddaa28bcbfab2baa58d",
              "lessThan": "c148ff2f5a168e0bc41d801efca6ee35a376cfcb",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "e3811190acf85c63518fbddaa28bcbfab2baa58d",
              "lessThan": "767789a58ae0d65ec3028e5b5b4da82210355d00",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "e3811190acf85c63518fbddaa28bcbfab2baa58d",
              "lessThan": "32bc5496b48174dbca1f187f710955ee4d9527a1",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/firmware/arm_scmi/sensors.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "5.11",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "5.11",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "5.15.222",
              "lessThanOrEqual": "5.15.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.1.189",
              "lessThanOrEqual": "6.1.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.6.158",
              "lessThanOrEqual": "6.6.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.111",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.53",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/1bbe431fc59704d012660647516f6f94ddd82564",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/32bc5496b48174dbca1f187f710955ee4d9527a1",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/767789a58ae0d65ec3028e5b5b4da82210355d00",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/87a72e75f7560ea45cd28870194eaa153dd19e75",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c148ff2f5a168e0bc41d801efca6ee35a376cfcb",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/e543d60f966a5f5c92298720c2fd1810f85a6be3",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}