ghsa-h2wv-j9q6-hqmc
Vulnerability from github
Published
2025-09-23 06:30
Modified
2025-09-23 06:30
Details

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

igb: Fix NULL pointer dereference in ethtool loopback test

The igb driver currently causes a NULL pointer dereference when executing the ethtool loopback test. This occurs because there is no associated q_vector for the test ring when it is set up, as interrupts are typically not added to the test rings.

Since commit 5ef44b3cb43b removed the napi_id assignment in __xdp_rxq_info_reg(), there is no longer a need to pass a napi_id to it. Therefore, simply use 0 as the last parameter.

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{
  "affected": [],
  "aliases": [
    "CVE-2025-39875"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2025-09-23T06:15:46Z",
    "severity": null
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nigb: Fix NULL pointer dereference in ethtool loopback test\n\nThe igb driver currently causes a NULL pointer dereference when executing\nthe ethtool loopback test. This occurs because there is no associated\nq_vector for the test ring when it is set up, as interrupts are typically\nnot added to the test rings.\n\nSince commit 5ef44b3cb43b removed the napi_id assignment in\n__xdp_rxq_info_reg(), there is no longer a need to pass a napi_id to it.\nTherefore, simply use 0 as the last parameter.",
  "id": "GHSA-h2wv-j9q6-hqmc",
  "modified": "2025-09-23T06:30:27Z",
  "published": "2025-09-23T06:30:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-39875"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/473be7d39efd3be383e9c0c8e44b53508b4ffeb5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/75871a525a596ff4d16c4aebc0018f8d0923c9b1"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}


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