ghsa-wg2w-8j36-3rqh
Vulnerability from github
Published
2025-12-24 15:30
Modified
2025-12-24 15:30
Details

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

x86/kexec: Fix double-free of elf header buffer

After

b3e34a47f989 ("x86/kexec: fix memory leak of elf header buffer"),

freeing image->elf_headers in the error path of crash_load_segments() is not needed because kimage_file_post_load_cleanup() will take care of that later. And not clearing it could result in a double-free.

Drop the superfluous vfree() call at the error path of crash_load_segments().

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{
  "affected": [],
  "aliases": [
    "CVE-2023-54146"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-12-24T13:16:16Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nx86/kexec: Fix double-free of elf header buffer\n\nAfter\n\n  b3e34a47f989 (\"x86/kexec: fix memory leak of elf header buffer\"),\n\nfreeing image-\u003eelf_headers in the error path of crash_load_segments()\nis not needed because kimage_file_post_load_cleanup() will take\ncare of that later. And not clearing it could result in a double-free.\n\nDrop the superfluous vfree() call at the error path of\ncrash_load_segments().",
  "id": "GHSA-wg2w-8j36-3rqh",
  "modified": "2025-12-24T15:30:39Z",
  "published": "2025-12-24T15:30:39Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-54146"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4c71a552b97fb4f46eb300224434fe56fcf4f254"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/554a880a1fff46dd5a355dec21cd77d542a0ddf2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5bd3c7abeb69fb4133418b846a1c6dc11313d6f0"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d00dd2f2645dca04cf399d8fc692f3f69b6dd996"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fbdbf8ac333d3d47c0d9ea81d7d445654431d100"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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