github - ghsa-4cvr-6334-4837

ghsa-4cvr-6334-4837

Vulnerability from github

Published

2025-12-16 15:30

Modified

2025-12-16 15:30

Details

In the Linux kernel, the following vulnerability has been resolved:

x86/CPU/AMD: Add missing terminator for zen5_rdseed_microcode

Running x86_match_min_microcode_rev() on a Zen5 CPU trips up KASAN for an out of bounds access.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-68195"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-16T14:15:52Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/CPU/AMD: Add missing terminator for zen5_rdseed_microcode\n\nRunning x86_match_min_microcode_rev() on a Zen5 CPU trips up KASAN for an out\nof bounds access.",
  "id": "GHSA-4cvr-6334-4837",
  "modified": "2025-12-16T15:30:45Z",
  "published": "2025-12-16T15:30:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-68195"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4c6b56a76478bd1ab609827c571905386c11d308"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f1fdffe0afea02ba783acfe815b6a60e7180df40"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

CVE-2025-68195 (GCVE-0-2025-68195)

Vulnerability from cvelistv5

Published

2025-12-16 13:43

Modified

2025-12-16 13:43

Severity ?

Summary

In the Linux kernel, the following vulnerability has been resolved: x86/CPU/AMD: Add missing terminator for zen5_rdseed_microcode Running x86_match_min_microcode_rev() on a Zen5 CPU trips up KASAN for an out of bounds access.

References

URL

Tags

	https://git.kernel.org/stable/c/4c6b56a76478bd1ab609827c571905386c11d308
	https://git.kernel.org/stable/c/f1fdffe0afea02ba783acfe815b6a60e7180df40

Impacted products

Vendor

Product

Version

Version: 36ff93e66d0efc46e39fab536a9feec968daa766
Version: 607b9fb2ce248cc5b633c5949e0153838992c152
Version: e980de2ff109dacb6d9d3a77f01b27c467115ecb

Show details on NVD website

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{
  "containers": {
    "cna": {
      "affected": [
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/x86/kernel/cpu/amd.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "versions": [
            {
              "lessThan": "4c6b56a76478bd1ab609827c571905386c11d308",
              "status": "affected",
              "version": "36ff93e66d0efc46e39fab536a9feec968daa766",
              "versionType": "git"
            },
            {
              "lessThan": "f1fdffe0afea02ba783acfe815b6a60e7180df40",
              "status": "affected",
              "version": "607b9fb2ce248cc5b633c5949e0153838992c152",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "e980de2ff109dacb6d9d3a77f01b27c467115ecb",
              "versionType": "git"
            }
          ]
        },
        {
          "defaultStatus": "unaffected",
          "product": "Linux",
          "programFiles": [
            "arch/x86/kernel/cpu/amd.c"
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux"
        }
      ],
      "cpeApplicability": [
        {
          "nodes": [
            {
              "cpeMatch": [
                {
                  "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                  "versionStartIncluding": "6.12.58",
                  "vulnerable": true
                }
              ],
              "negate": false,
              "operator": "OR"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/CPU/AMD: Add missing terminator for zen5_rdseed_microcode\n\nRunning x86_match_min_microcode_rev() on a Zen5 CPU trips up KASAN for an out\nof bounds access."
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-12-16T13:43:21.855Z",
        "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "shortName": "Linux"
      },
      "references": [
        {
          "url": "https://git.kernel.org/stable/c/4c6b56a76478bd1ab609827c571905386c11d308"
        },
        {
          "url": "https://git.kernel.org/stable/c/f1fdffe0afea02ba783acfe815b6a60e7180df40"
        }
      ],
      "title": "x86/CPU/AMD: Add missing terminator for zen5_rdseed_microcode",
      "x_generator": {
        "engine": "bippy-1.2.0"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
    "assignerShortName": "Linux",
    "cveId": "CVE-2025-68195",
    "datePublished": "2025-12-16T13:43:21.855Z",
    "dateReserved": "2025-12-16T13:41:40.253Z",
    "dateUpdated": "2025-12-16T13:43:21.855Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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