ghsa-h5g4-rrcc-vqf7
Vulnerability from github
Published
2025-03-18 21:31
Modified
2025-11-03 21:32
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:

kernel/resource: fix kfree() of bootmem memory again

Since commit ebff7d8f270d ("mem hotunplug: fix kfree() of bootmem memory"), we could get a resource allocated during boot via alloc_resource(). And it's required to release the resource using free_resource(). Howerver, many people use kfree directly which will result in kernel BUG. In order to fix this without fixing every call site, just leak a couple of bytes in such corner case.

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{
  "affected": [],
  "aliases": [
    "CVE-2022-49190"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-401"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-26T07:00:56Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nkernel/resource: fix kfree() of bootmem memory again\n\nSince commit ebff7d8f270d (\"mem hotunplug: fix kfree() of bootmem\nmemory\"), we could get a resource allocated during boot via\nalloc_resource().  And it\u0027s required to release the resource using\nfree_resource().  Howerver, many people use kfree directly which will\nresult in kernel BUG.  In order to fix this without fixing every call\nsite, just leak a couple of bytes in such corner case.",
  "id": "GHSA-h5g4-rrcc-vqf7",
  "modified": "2025-11-03T21:32:52Z",
  "published": "2025-03-18T21:31:59Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-49190"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/0cbcc92917c5de80f15c24d033566539ad696892"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3379a60f6bb4afcd9c456e340ac525ae649d3ce7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a9e88c2618d228d7a4e7e515cf30dc0d0d813f27"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ab86020070999e758ce2e60c4348f20bf7ddba56"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d7faa04a44a0c37ac3d222fa8e0bdcbfcee9c0c8"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2025/05/msg00030.html"
    }
  ],
  "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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