ghsa-6fmp-gcqx-7933
Vulnerability from github
Published
2025-03-14 00:30
Modified
2025-03-14 00:30
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

In the Linux kernel, the following vulnerability has been resolved:

mm/huge_memory: Fix xarray node memory leak

If xas_split_alloc() fails to allocate the necessary nodes to complete the xarray entry split, it sets the xa_state to -ENOMEM, which xas_nomem() then interprets as "Please allocate more memory", not as "Please free any unnecessary memory" (which was the intended outcome). It's confusing to use xas_nomem() to free memory in this context, so call xas_destroy() instead.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49334"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:01:10Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/huge_memory: Fix xarray node memory leak\n\nIf xas_split_alloc() fails to allocate the necessary nodes to complete the\nxarray entry split, it sets the xa_state to -ENOMEM, which xas_nomem()\nthen interprets as \"Please allocate more memory\", not as \"Please free\nany unnecessary memory\" (which was the intended outcome).  It\u0027s confusing\nto use xas_nomem() to free memory in this context, so call xas_destroy()\ninstead.",
  "id": "GHSA-6fmp-gcqx-7933",
  "modified": "2025-03-14T00:30:51Z",
  "published": "2025-03-14T00:30:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49334"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/69a37a8ba1b408a1c7616494aa7018e4b3844cbe"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/95c8181b4947e000f3b9b8e5918d899fce77b93d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c0c84962e297927ba57fd6ddc2bb000c9d149655"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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