nvmem: core: fix use-after-free bugs in error paths

{
  "id": "c522992bfd6b6f107c79fe8a81b80b340bf4e734fbdf0116cde78c8c38980c17",
  "url": "https://osv.dev/vulnerability/CVE-2026-53156",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "nvmem: core: fix use-after-free bugs in error paths",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: nvmem: core: fix use-after-free bugs in error paths Fix several instances of error paths in which we call __nvmem_device_put() - which may end up freeing the underlying memory and other resources - and then keep on using the nvmem structure. Always put the reference to the nvmem device as the last step before returning the error code.",
    "evidence": "osv:CVE-2026-53156",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
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        "prerequisites": [],
        "fixed_versions": [
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            "value": "6.6.160",
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          {
            "value": "6.12.94",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.36",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.0.13",
            "evidence": "/affected/1/ranges"
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        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-53156",
      "aliases": [
        "CVE-2026-53156"
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      "affected": [
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                  "fixed": "6cdcf0d16c80900f42d60252480cd131c1a83d23"
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              "type": "ECOSYSTEM",
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                  "introduced": "4.20.0"
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              "type": "ECOSYSTEM",
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          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
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      ],
      "modified": "2026-10-28T02:30:41.220667162Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/40e2a459c0dd1333b2343831480a0ad80dc07614",
        "https://git.kernel.org/stable/c/5b6b6fc491899d583eaa75344e094796ae9b530b",
        "https://git.kernel.org/stable/c/6cdcf0d16c80900f42d60252480cd131c1a83d23",
        "https://git.kernel.org/stable/c/cb85ef5a227b3662b88f4d849a1aad43bfe7f5ae",
        "https://git.kernel.org/stable/c/e0d38bf47a72da2f02c9fa6f752cd66d977cd7f7",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53156.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-53156",
        "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/2026/53xxx/CVE-2026-53156.json"
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    "related_cves": [
      {
        "value": "CVE-2026-53156",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 509125,
  "published_at": "2026-06-25T08:38:39.495+00:00"
}