ghsa-2c9f-4h7m-wqr9
Vulnerability from github
Published
2024-12-28 12:30
Modified
2025-01-08 18:30
Severity ?
7.8 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Details

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

EDAC/igen6: Avoid segmentation fault on module unload

The segmentation fault happens because:

During modprobe: 1. In igen6_probe(), igen6_pvt will be allocated with kzalloc() 2. In igen6_register_mci(), mci->pvt_info will point to &igen6_pvt->imc[mc]

During rmmod: 1. In mci_release() in edac_mc.c, it will kfree(mci->pvt_info) 2. In igen6_remove(), it will kfree(igen6_pvt);

Fix this issue by setting mci->pvt_info to NULL to avoid the double kfree.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2024-56708"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-415"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-28T10:15:20Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nEDAC/igen6: Avoid segmentation fault on module unload\n\nThe segmentation fault happens because:\n\nDuring modprobe:\n1. In igen6_probe(), igen6_pvt will be allocated with kzalloc()\n2. In igen6_register_mci(), mci-\u003epvt_info will point to\n   \u0026igen6_pvt-\u003eimc[mc]\n\nDuring rmmod:\n1. In mci_release() in edac_mc.c, it will kfree(mci-\u003epvt_info)\n2. In igen6_remove(), it will kfree(igen6_pvt);\n\nFix this issue by setting mci-\u003epvt_info to NULL to avoid the double\nkfree.",
  "id": "GHSA-2c9f-4h7m-wqr9",
  "modified": "2025-01-08T18:30:48Z",
  "published": "2024-12-28T12:30:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-56708"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/029ac07bb92d2f7502d47a4916f197a8445d83bf"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2a80e710bbc088a2511c159ee4d910456c5f0832"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/830cabb61113d92a425dd3038ccedbdfb3c8d079"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/db60326f2c47b079e36785ace621eb3002db2088"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e5c7052664b61f9e2f896702d20552707d0ef60a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/fefaae90398d38a1100ccd73b46ab55ff4610fba"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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