CVE-2026-98475

Full vulnerability record from the local CVENow database.

Description

In the Linux kernel, the following vulnerability has been resolved: s390/cmf: Fix virtual vs physical address confusion The measurement block address is an absolute address. Define the associated schib_config and schib fields as dma64_t to enable automatic detection of incorrect assignments. Also add the missing virt_to_dma64() translation. Without this fix, a wrong address will be used by firmware when storing extended format channel measurement data on kernels built with CONFIG_RANDOMIZE_IDENTITY_BASE=y.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Received

Source identifier

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

Published

2026-10-18 16:16:58.027000

Last modified

2026-10-19 10:18:58.150000

View original CVE JSON

{
  "id": "CVE-2026-98475",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "published": "2026-10-18T16:16:58.027",
  "lastModified": "2026-10-19T10:18:58.150",
  "vulnStatus": "Received",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ns390/cmf: Fix virtual vs physical address confusion\n\nThe measurement block address is an absolute address. Define the\nassociated schib_config and schib fields as dma64_t to enable automatic\ndetection of incorrect assignments. Also add the missing virt_to_dma64()\ntranslation.\n\nWithout this fix, a wrong address will be used by firmware when storing\nextended format channel measurement data on kernels built with\nCONFIG_RANDOMIZE_IDENTITY_BASE=y."
    }
  ],
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "unaffected",
          "programFiles": [
            "drivers/s390/cio/cio.h",
            "drivers/s390/cio/cmf.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "14edd0d73bfef320fd5be11495687ba537aa6341",
              "lessThan": "b11f369be31ea11c746833e4d3ad51dcd6b5fa2b",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "14edd0d73bfef320fd5be11495687ba537aa6341",
              "lessThan": "748ec2f7f5df9b4fc742546a8bfc8aa5d847353e",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "14edd0d73bfef320fd5be11495687ba537aa6341",
              "lessThan": "7f78226eb743b362f52b212d7763801642539d1c",
              "versionType": "git",
              "status": "affected"
            },
            {
              "version": "14edd0d73bfef320fd5be11495687ba537aa6341",
              "lessThan": "f4d04425e66af2ecee9d1a49ae0484436f3c2fd1",
              "versionType": "git",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "Linux",
          "product": "Linux",
          "defaultStatus": "affected",
          "programFiles": [
            "drivers/s390/cio/cio.h",
            "drivers/s390/cio/cmf.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "versions": [
            {
              "version": "6.9",
              "status": "affected"
            },
            {
              "version": "0",
              "lessThan": "6.9",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.12.112",
              "lessThanOrEqual": "6.12.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "6.18.55",
              "lessThanOrEqual": "6.18.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.2.9",
              "lessThanOrEqual": "7.2.*",
              "versionType": "semver",
              "status": "unaffected"
            },
            {
              "version": "7.3",
              "lessThanOrEqual": "*",
              "versionType": "original_commit_for_fix",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/748ec2f7f5df9b4fc742546a8bfc8aa5d847353e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7f78226eb743b362f52b212d7763801642539d1c",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/b11f369be31ea11c746833e4d3ad51dcd6b5fa2b",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f4d04425e66af2ecee9d1a49ae0484436f3c2fd1",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ]
}