ghsa-fhjf-w34g-fcvp
Vulnerability from github
Published
2025-02-27 21:32
Modified
2025-03-13 15:32
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:

memory: tegra20-emc: fix an OF node reference bug in tegra_emc_find_node_by_ram_code()

As of_find_node_by_name() release the reference of the argument device node, tegra_emc_find_node_by_ram_code() releases some device nodes while still in use, resulting in possible UAFs. According to the bindings and the in-tree DTS files, the "emc-tables" node is always device's child node with the property "nvidia,use-ram-code", and the "lpddr2" node is a child of the "emc-tables" node. Thus utilize the for_each_child_of_node() macro and of_get_child_by_name() instead of of_find_node_by_name() to simplify the code.

This bug was found by an experimental verification tool that I am developing.

[krzysztof: applied v1, adjust the commit msg to incorporate v2 parts]

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{
  "affected": [],
  "aliases": [
    "CVE-2024-58034"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-416"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-02-27T20:16:02Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nmemory: tegra20-emc: fix an OF node reference bug in tegra_emc_find_node_by_ram_code()\n\nAs of_find_node_by_name() release the reference of the argument device\nnode, tegra_emc_find_node_by_ram_code() releases some device nodes while\nstill in use, resulting in possible UAFs. According to the bindings and\nthe in-tree DTS files, the \"emc-tables\" node is always device\u0027s child\nnode with the property \"nvidia,use-ram-code\", and the \"lpddr2\" node is a\nchild of the \"emc-tables\" node. Thus utilize the\nfor_each_child_of_node() macro and of_get_child_by_name() instead of\nof_find_node_by_name() to simplify the code.\n\nThis bug was found by an experimental verification tool that I am\ndeveloping.\n\n[krzysztof: applied v1, adjust the commit msg to incorporate v2 parts]",
  "id": "GHSA-fhjf-w34g-fcvp",
  "modified": "2025-03-13T15:32:52Z",
  "published": "2025-02-27T21:32:16Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-58034"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3b02273446e23961d910b50cc12528faec649fb2"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/755e44538c190c31de9090d8e8821d228fcfd416"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/b9784e5cde1f9fb83661a70e580e381ae1264d12"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c144423cb07e4e227a8572d5742ca2b36ada770d"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/c3def10c610ae046aaa61d00528e7bd15e4ad8d3"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e9d07e91de140679eeaf275f47ad154467cb9e05"
    }
  ],
  "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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