ghsa-w2vx-fp9q-36ph
Vulnerability from github
Published
2024-12-24 12:30
Modified
2025-01-05 09:30
Details

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

x86/xen: don't do PV iret hypercall through hypercall page

Instead of jumping to the Xen hypercall page for doing the iret hypercall, directly code the required sequence in xen-asm.S.

This is done in preparation of no longer using hypercall page at all, as it has shown to cause problems with speculation mitigations.

This is part of XSA-466 / CVE-2024-53241.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-53241"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-24T10:15:06Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/xen: don\u0027t do PV iret hypercall through hypercall page\n\nInstead of jumping to the Xen hypercall page for doing the iret\nhypercall, directly code the required sequence in xen-asm.S.\n\nThis is done in preparation of no longer using hypercall page at all,\nas it has shown to cause problems with speculation mitigations.\n\nThis is part of XSA-466 / CVE-2024-53241.",
  "id": "GHSA-w2vx-fp9q-36ph",
  "modified": "2025-01-05T09:30:42Z",
  "published": "2024-12-24T12:30:42Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53241"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/05df6e6cd9a76b778aee33c3c18c9f3b3566d4a5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/82c211ead1ec440dbf81727e17b03b5e3c44b93d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a2796dff62d6c6bfc5fbebdf2bee0d5ac0438906"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c7b4cfa6213a44fa48714186dfdf125072d036e3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/f7c3fdad0a474062d566aae3289d490d7e702d30"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fa719857f613fed94a79da055b13ca51214c694f"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2024/12/17/2"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2024/12/23/1"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2025/01/05/1"
    },
    {
      "type": "WEB",
      "url": "http://www.openwall.com/lists/oss-security/2025/01/05/2"
    },
    {
      "type": "WEB",
      "url": "http://xenbits.xen.org/xsa/advisory-466.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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