ghsa-fpcp-87j2-pf32
Vulnerability from github
Published
2024-12-27 15:31
Modified
2025-01-15 21:31
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Details

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

wifi: ath12k: fix crash when unbinding

If there is an error during some initialization related to firmware, the function ath12k_dp_cc_cleanup is called to release resources. However this is released again when the device is unbinded (ath12k_pci), and we get: BUG: kernel NULL pointer dereference, address: 0000000000000020 at RIP: 0010:ath12k_dp_cc_cleanup.part.0+0xb6/0x500 [ath12k] Call Trace: ath12k_dp_cc_cleanup 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 to NULL the released structure in ath12k_dp_cc_cleanup at the end.

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{
  "affected": [],
  "aliases": [
    "CVE-2024-53188"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-476"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-12-27T14:15:26Z",
    "severity": "MODERATE"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: ath12k: fix crash when unbinding\n\nIf there is an error during some initialization related to firmware,\nthe function ath12k_dp_cc_cleanup is called to release resources.\nHowever this is released again when the device is unbinded (ath12k_pci),\nand we get:\nBUG: kernel NULL pointer dereference, address: 0000000000000020\nat RIP: 0010:ath12k_dp_cc_cleanup.part.0+0xb6/0x500 [ath12k]\nCall Trace:\nath12k_dp_cc_cleanup\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 to NULL the released structure in\nath12k_dp_cc_cleanup at the end.",
  "id": "GHSA-fpcp-87j2-pf32",
  "modified": "2025-01-15T21:31:40Z",
  "published": "2024-12-27T15:31:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-53188"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/1304446f67863385dc4c914b6e0194f6664ee764"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/2eec88c0fa63f8ad35704a8c9df0b5bd8694fcda"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/488d2959c28621e52b3cce118a813a4bc18bb3d1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/81da9c0854545c3188ca2a09afe7cb65f9c012b5"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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