mux: mmio: fix regmap leak on probe failure

{
  "id": "88ae680253c2ab103a0a8026083f365942a7cdfff061b8122357f28182a9ade9",
  "url": "https://osv.dev/vulnerability/CVE-2026-43155",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "mux: mmio: fix regmap leak on probe failure",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: mux: mmio: fix regmap leak on probe failure The mmio regmap that may be allocated during probe is never freed. Switch to using the device managed allocator so that the regmap is released on probe failures (e.g. probe deferral) and on driver unbind.",
    "evidence": "osv:CVE-2026-43155",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.18.16",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.19.6",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-43155",
      "aliases": [
        "CVE-2026-43155"
      ],
      "affected": [
        {
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              "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
              "type": "GIT",
              "events": [
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                  "fixed": "76096f156fe9dc9fbd6e4618088706e91b9b0a6c"
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                {
                  "fixed": "cbde3c109d52564ae2c12e514c33c44345e84b2c"
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                  "fixed": "3c4ae63073d84abee5d81ce46d86a94e9dae9c89"
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          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43155.json"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.16.0"
                },
                {
                  "fixed": "6.18.16"
                }
              ]
            },
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "6.19.0"
                },
                {
                  "fixed": "6.19.6"
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              ]
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          ],
          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-43155.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:34.172025959Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/3c4ae63073d84abee5d81ce46d86a94e9dae9c89",
        "https://git.kernel.org/stable/c/76096f156fe9dc9fbd6e4618088706e91b9b0a6c",
        "https://git.kernel.org/stable/c/cbde3c109d52564ae2c12e514c33c44345e84b2c",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/43xxx/CVE-2026-43155.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-43155",
        "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/2026/43xxx/CVE-2026-43155.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-43155",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 501214,
  "published_at": "2026-05-06T11:27:35.8+00:00"
}