drm/nouveau: fix nvkm_device leak on aperture removal failure

{
  "id": "3f430898c0adea0cee959c9ac142555e1e2173ad3c987dc47812fc382fb6c2f3",
  "url": "https://osv.dev/vulnerability/CVE-2026-52904",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "drm/nouveau: fix nvkm_device leak on aperture removal failure",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: drm/nouveau: fix nvkm_device leak on aperture removal failure When aperture_remove_conflicting_pci_devices() fails during probe, the error path returns directly without unwinding the nvkm_device that was just allocated by nvkm_device_pci_new(). This leaks both the device wrapper and the pci_enable_device() reference taken inside it. Jump to the existing fail_nvkm label so nvkm_device_del() runs and balances both. The leak was introduced when the intermediate nvkm_device_del() between detection and aperture removal was dropped in favor of creating the pci device once.",
    "evidence": "osv:CVE-2026-52904",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
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            "value": "6.12.86",
            "evidence": "/affected/1/ranges"
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          {
            "value": "6.18.27",
            "evidence": "/affected/1/ranges"
          },
          {
            "value": "7.0.4",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CVE-2026-52904",
      "aliases": [
        "CVE-2026-52904"
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      "affected": [
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                  "fixed": "6597ff1d8de3f583be169587efeafd8af134e138"
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          "ranges": [
            {
              "type": "ECOSYSTEM",
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                  "introduced": "6.12.0"
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            {
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                {
                  "fixed": "6.18.27"
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            {
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              "events": [
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                  "introduced": "6.19.0"
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            "name": "Kernel",
            "ecosystem": "Linux"
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          "database_specific": {
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      ],
      "modified": "2026-10-28T02:30:38.741198508Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/4404d7d2dda4f3cc84a8fb6ac5417a2afc3b22d6",
        "https://git.kernel.org/stable/c/5edd564ccb002ffc830e7818c1c4a992db774678",
        "https://git.kernel.org/stable/c/6597ff1d8de3f583be169587efeafd8af134e138",
        "https://git.kernel.org/stable/c/843c0247cf21364e33bb5a8ffc9af57107d04d05",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/52xxx/CVE-2026-52904.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-52904",
        "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/2026/52xxx/CVE-2026-52904.json"
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    "related_cves": [
      {
        "value": "CVE-2026-52904",
        "evidence": "/id"
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    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 505992,
  "published_at": "2026-06-09T12:36:01.237+00:00"
}