GHSA-F55F-7VQJ-Q3F7

Vulnerability from github – Published: 2026-05-08 15:31 – Updated: 2026-05-26 18:31
VLAI
Details

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

staging: rtl8723bs: fix potential out-of-bounds read in rtw_restruct_wmm_ie

The current code checks 'i + 5 < in_len' at the end of the if statement. However, it accesses 'in_ie[i + 5]' before that check, which can lead to an out-of-bounds read. Move the length check to the beginning of the conditional to ensure the index is within bounds before accessing the array.

Severity
7.1 (High)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
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{
  "affected": [],
  "aliases": [
    "CVE-2026-43386"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-125"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-08T15:16:49Z",
    "severity": "HIGH"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix potential out-of-bounds read in rtw_restruct_wmm_ie\n\nThe current code checks \u0027i + 5 \u003c in_len\u0027 at the end of the if statement.\nHowever, it accesses \u0027in_ie[i + 5]\u0027 before that check, which can lead\nto an out-of-bounds read. Move the length check to the beginning of the\nconditional to ensure the index is within bounds before accessing the\narray.",
  "id": "GHSA-f55f-7vqj-q3f7",
  "modified": "2026-05-26T18:31:37Z",
  "published": "2026-05-08T15:31:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-43386"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/12cc6e8f8d4245b7b5a408c6fc8ab1d098d67020"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/209644e25757c499e1c1f08c071ea0386d4448b6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/4dd2d9cf563c54e09d5f7eacf95c5b8f538b513b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/6ff2243d5e05a5239e39d4ba61d96b0ea3bf7259"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/768f25613a9fe6766d15a4a72979657adfc1c6d8"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a75281626fc8fa6dc6c9cc314ee423e8bc45203b"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/d97fc1b29513010b60fde874c7f0ba816744e18c"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e14a1148f02e8cf1ca380d57e4b95ca36c97f45d"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H",
      "type": "CVSS_V3"
    }
  ]
}


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