sched/debug: fix dentry leak in update_sched_domain_debugfs

{
  "id": "1e7b7309e0e9eb941da7de804c88c53512c65e92716d241ec5d4687c98366b04",
  "url": "https://osv.dev/vulnerability/CVE-2022-48699",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "sched/debug: fix dentry leak in update_sched_domain_debugfs",
    "summary": "In the Linux kernel, the following vulnerability has been resolved: sched/debug: fix dentry leak in update_sched_domain_debugfs Kuyo reports that the pattern of using debugfs_remove(debugfs_lookup()) leaks a dentry and with a hotplug stress test, the machine eventually runs out of memory. Fix this up by using the newly created debugfs_lookup_and_remove() call instead which properly handles the dentry reference counting logic.",
    "evidence": "osv:CVE-2022-48699",
    "products": [
      {
        "name": {
          "value": "Kernel",
          "evidence": "/affected/1/package/name"
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        "prerequisites": [],
        "fixed_versions": [
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            "value": "5.15.68",
            "evidence": "/affected/1/ranges"
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            "value": "5.19.9",
            "evidence": "/affected/1/ranges"
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    "severity": "unknown",
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      "aliases": [
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              "type": "ECOSYSTEM",
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            "ecosystem": "Linux"
          },
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2022-48699.json"
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      ],
      "modified": "2026-10-28T02:30:30.283971767Z",
      "provider": "osv",
      "references": [
        "https://git.kernel.org/stable/c/0c32a93963e03c03e561d5a066eedad211880ba3",
        "https://git.kernel.org/stable/c/26e9a1ded8923510e5529fbb28390b22228700c2",
        "https://git.kernel.org/stable/c/c2e406596571659451f4b95e37ddfd5a8ef1d0dc",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/48xxx/CVE-2022-48699.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2022-48699",
        "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/2022/48xxx/CVE-2022-48699.json"
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    "security_relevant": true,
    "severity_evidence": null
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  "source_id": "core-osv",
  "document_id": 496918,
  "published_at": "2024-05-03T15:11:54.15+00:00"
}