hwmon: (powerz) Avoid cacheline sharing for DMA buffer

{
  "id": "a8a1793f03dd43e31057036bceedc189b1abbd95319422b4fa6d17661ce3ed4e",
  "url": "https://osv.dev/vulnerability/CVE-2026-46007",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "hwmon: (powerz) Avoid cacheline sharing for DMA buffer",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: hwmon: (powerz) Avoid cacheline sharing for DMA buffer Depending on the architecture the transfer buffer may share a cacheline with the following mutex. As the buffer may be used for DMA, that is problematic. Use the high-level DMA helpers to make sure that cacheline sharing can not happen. Also drop the comment, as the helpers are documentation enough. https://sashiko.dev/#/message/20260408175814.934BFC19421%40smtp.kernel.org",
    "evidence": "osv:CVE-2026-46007",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.12.88",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.30",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.0.4",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-46007",
      "aliases": [
        "CVE-2026-46007"
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                  "fixed": "270e5c576a6e30f6b337fa91d35b44c241297533"
                },
                {
                  "fixed": "1869da3efe703b016b23d4885f3fe6c1751959c6"
                },
                {
                  "fixed": "2fa2273016a0483217404cfe330967c4ac6832a9"
                },
                {
                  "fixed": "3023c050af3600bf451153335dea5e073c9a3088"
                }
              ]
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          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46007.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.7.0"
                },
                {
                  "fixed": "6.12.88"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.13.0"
                },
                {
                  "fixed": "6.18.30"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "7.0.4"
                }
              ]
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-46007.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:50.901776286Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/1869da3efe703b016b23d4885f3fe6c1751959c6",
        "https://git.kernel.org/stable/c/270e5c576a6e30f6b337fa91d35b44c241297533",
        "https://git.kernel.org/stable/c/2fa2273016a0483217404cfe330967c4ac6832a9",
        "https://git.kernel.org/stable/c/3023c050af3600bf451153335dea5e073c9a3088",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46007.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-46007",
        "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
      ],
      "provider_metadata": {
        "cna_assigner": "Linux",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/46xxx/CVE-2026-46007.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-46007",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 519125,
  "published_at": "2026-05-27T12:56:06.623+00:00"
}