{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-90016",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-90016"
  ],
  "published": "2026-09-16T10:32:03Z",
  "summary": "staging: rtl8723bs: fix OOB read in rtw_restruct_wmm_ie()",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix OOB read in rtw_restruct_wmm_ie()\n\nrtw_restruct_wmm_ie() scans in_ie for a WMM IE with:\n\n\twhile (i < in_len) {\n\t\t...\n\t\tif (i + 5 < in_len && in_ie[i] == 0xDD && ...) {\n\t\t\t...\n\t\t\tbreak;\n\t\t}\n\t\ti += (in_ie[i + 1] + 2); /* to the next IE element */\n\t}\n\nWhen the \"i + 5 < in_len\" match check fails simply because i is\nwithin 5 bytes of the end of the buffer (i.e. no WMM IE was found\nnear the tail of in_ie), execution falls through to\n\"i += (in_ie[i + 1] + 2)\", which reads in_ie[i + 1]. If i == in_len\n- 1 at that point, this is a 1-byte out-of-bounds read of an\nattacker-influenced IE buffer built from association/scan data.\n\nCommit a75281626fc8f (\"staging: rtl8723bs: fix potential\nout-of-bounds read in rtw_restruct_wmm_ie\") added the \"i + 5 <\nin_len\" guard to the match condition itself, but did not add an\nequivalent guard before the fallthrough advance, so the same class\nof OOB read remained reachable through the non-matching path.\n\nAdd an explicit bounds check before advancing to the next IE.",
  "affected": [
    {
      "package": {
        "ecosystem": "Raspberry Pi OS:12",
        "name": "linux"
      },
      "versions": [
        "1:6.1.47-1+rpt4"
      ],
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-2712",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v6",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v7l",
            "binary_version": "1:6.1.47-1+rpt4"
          },
          {
            "binary_name": "linux-image-6.1.0-rpi3-rpi-v8",
            "binary_version": "1:6.1.47-1+rpt4"
          }
        ]
      },
      "database_specific": {
        "per_version": {
          "1:6.1.47-1+rpt4": {
            "linux_commit": "655fc658a15ae7a6f37103754adb39ba52a9a14e",
            "upstream_version": "6.1.47",
            "assessment": "commit ancestry (strak rule)",
            "upstream_fixed": null,
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-90016"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/e63b72c5d7336981dfc05e5cb92becff29dfea00"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/4420cc71841b50e31a7868ef7acb011c0e08d294"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/fd19b8895f8a91087e8a62f1e27b128025dabb95"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/28a289beaf226b30b1e6e7d7b1a2946fe2d6e852"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-10-03T11:04:09Z"
  }
}