{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-93803",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-93803"
  ],
  "published": "2026-09-24T16:08:25Z",
  "summary": "wifi: libipw: fix key index receive bound checks",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: libipw: fix key index receive bound checks\n\nlibipw_rx() reads skb->data[hdrlen + 3] to extract the WEP key index in\nboth the software-decrypt key selection path and the hardware-decrypted\nIV/ICV strip path. In both places the existing guard only checks\nskb->len >= hdrlen + 3, which proves bytes up to hdrlen + 2 but not the\nbyte at hdrlen + 3.\n\nRequire hdrlen + 4 bytes before reading that item in both paths. This is\na local source-boundary check only; it does not change the key index\nsemantics.",
  "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": "6.1.189",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-93803"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/bb18262c19feb690ddde58c70e3ad04bc6fe566e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/09d4a1bc3a08bb0e19bdf250b9f575cfef0bae82"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/2836a870f612a8a6d9e390d00fa2cf6c90aa5808"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/0b61c465ea62063593bc9ac186871b69e58ae991"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/062840bdc9ee06169b3c371bf66711f1d7ec0bf4"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/c54b643e9a0936d038921c547736574fd7382cea"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/74ed3669f26803b1761c1f55403062bea44c3466"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-10-03T11:04:09Z"
  }
}