ghsa-96q6-8hjq-2q63
Vulnerability from github
Published
2024-12-27 15:31
Modified
2025-01-31 18:31
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:

wifi: ath12k: fix warning when unbinding

If there is an error during some initialization related to firmware, the buffers dp->tx_ring[i].tx_status are released. However this is released again when the device is unbinded (ath12k_pci), and we get: WARNING: CPU: 0 PID: 2098 at mm/slub.c:4689 free_large_kmalloc+0x4d/0x80 Call Trace: free_large_kmalloc ath12k_dp_free ath12k_core_deinit ath12k_pci_remove ...

The issue is always reproducible from a VM because the MSI addressing initialization is failing.

In order to fix the issue, just set the buffers to NULL after releasing in order to avoid the double free.

Show details on source website

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{
  "affected": [],
  "aliases": [
    "CVE-2024-53191"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-415"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-27T14:15:26Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: fix warning when unbinding\n\nIf there is an error during some initialization related to firmware,\nthe buffers dp-\u003etx_ring[i].tx_status are released.\nHowever this is released again when the device is unbinded (ath12k_pci),\nand we get:\nWARNING: CPU: 0 PID: 2098 at mm/slub.c:4689 free_large_kmalloc+0x4d/0x80\nCall Trace:\nfree_large_kmalloc\nath12k_dp_free\nath12k_core_deinit\nath12k_pci_remove\n...\n\nThe issue is always reproducible from a VM because the MSI addressing\ninitialization is failing.\n\nIn order to fix the issue, just set the buffers to NULL after releasing in\norder to avoid the double free.",
  "id": "GHSA-96q6-8hjq-2q63",
  "modified": "2025-01-31T18:31:04Z",
  "published": "2024-12-27T15:31:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53191"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/223b546c6222d42147eff034433002ca5e2e7e09"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/90556b96338aa6037cd26dac857327fda7c19732"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/94c9100b600f05a36b33f9ed76dbd6fb0eb25386"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ca68ce0d9f4bcd032fd1334441175ae399642a06"
    }
  ],
  "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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