media: intel/ipu6: fix async notifier cleanup leak on parse error

{
  "id": "e21e73ae19ecda8cadd01b803eeb4a2882b76594e426c520f6c226e8e7874331",
  "url": "https://osv.dev/vulnerability/CVE-2026-89886",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "media: intel/ipu6: fix async notifier cleanup leak on parse error",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: media: intel/ipu6: fix async notifier cleanup leak on parse error isys_notifier_init() calls v4l2_async_nf_init() and then adds fwnode remote subdevs in a loop with v4l2_async_nf_add_fwnode_remote(). If an endpoint parse or add fails partway through the loop, it jumps to err_parse and returns without calling v4l2_async_nf_cleanup(), leaking every v4l2_async_connection already added to the notifier's waiting list. The register-failure path just below already cleans up correctly, and the caller only tears the notifier down (isys_notifier_cleanup()) once isys_notifier_init() has returned success. Clean up the notifier on the parse error path too.",
    "evidence": "osv:CVE-2026-89886",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "6.12.110",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "6.18.51",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.2.5",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-89886",
      "aliases": [
        "CVE-2026-89886"
      ],
      "affected": [
        {
          "ranges": [
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              "type": "GIT",
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        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
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                  "introduced": "6.10.0"
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              "type": "ECOSYSTEM",
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                {
                  "fixed": "6.18.51"
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          "package": {
            "name": "Kernel",
            "ecosystem": "Linux"
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          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89886.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:43.593049551Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/27b7997be552ee37b3e01beacfeb4131f1bebb5f",
        "https://git.kernel.org/stable/c/abb1f808ceab5a3275f8a6b4e37cff17f9f781c1",
        "https://git.kernel.org/stable/c/dd5943aedbe4d7eb46158cb35078257733ac48b6",
        "https://git.kernel.org/stable/c/eee6069e4e9511e814a33a75e403f7e863f70394",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89886.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-89886",
        "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/2026/89xxx/CVE-2026-89886.json"
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    "related_cves": [
      {
        "value": "CVE-2026-89886",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 511553,
  "published_at": "2026-09-16T10:31:50.497+00:00"
}