GHSA-GJ23-C8MG-CV5R

Vulnerability from github – Published: 2026-01-23 18:31 – Updated: 2026-02-26 21:31
VLAI
Details

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

wifi: avoid kernel-infoleak from struct iw_point

struct iw_point has a 32bit hole on 64bit arches.

struct iw_point { void __user pointer; / Pointer to the data (in user space) / __u16 length; / number of fields or size in bytes / __u16 flags; / Optional params */ };

Make sure to zero the structure to avoid disclosing 32bits of kernel data to user space.

Severity
3.3 (Low)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
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{
  "affected": [],
  "aliases": [
    "CVE-2026-22978"
  ],
  "database_specific": {
    "cwe_ids": [],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-01-23T16:15:53Z",
    "severity": "LOW"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: avoid kernel-infoleak from struct iw_point\n\nstruct iw_point has a 32bit hole on 64bit arches.\n\nstruct iw_point {\n  void __user   *pointer;       /* Pointer to the data  (in user space) */\n  __u16         length;         /* number of fields or size in bytes */\n  __u16         flags;          /* Optional params */\n};\n\nMake sure to zero the structure to avoid disclosing 32bits of kernel data\nto user space.",
  "id": "GHSA-gj23-c8mg-cv5r",
  "modified": "2026-02-26T21:31:27Z",
  "published": "2026-01-23T18:31:28Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-22978"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/024f71a57d563fbe162e528c8bf2d27e9cac7c7b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/21cbf883d073abbfe09e3924466aa5e0449e7261"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/442ceac0393185e9982323f6682a52a53e8462b1"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a3827e310b5a73535646ef4a552d53b3c8bf74f6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d21ec867d84c9f3a9845d7d8c90c9ce35dbe48f8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d943b5f592767b107ba8c12a902f17431350378c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e3c35177103ead4658b8a62f41e3080d45885464"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}



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