{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-64443",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-64443"
  ],
  "published": "2026-07-25T08:51:45Z",
  "summary": "staging: rtl8723bs: fix OOB read in update_beacon_info() IE loop",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nstaging: rtl8723bs: fix OOB read in update_beacon_info() IE loop\n\nThe IE parsing loop in update_beacon_info() advances by\n(pIE->length + 2) each iteration but only guards on i < len.\nWhen a malicious AP sends a Beacon whose last IE has only one byte\nremaining in the frame (the element_id byte lands at len-1), the loop\nreads pIE->length from one byte past the allocated receive buffer.\n\nAdditionally, even when the header bytes are in bounds, pIE->length\nitself can extend the data window beyond len, passing a truncated IE\nto the handler functions.\n\nAdd two guards at the top of the loop body:\n  1. Break if fewer than sizeof(*pIE) bytes remain (can't read header).\n  2. Break if the IE's declared data extends past len.\n\nAlso replace i += (pIE->length + 2) with i += sizeof(*pIE) + pIE->length\nfor consistency with the sizeof(*pIE) guards added above.",
  "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": "6.1.178",
            "compiled_filter": false
          }
        }
      }
    }
  ],
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-64443"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/5e8db4cff5b45c7c4edc8ae3f302027c3bb32b25"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/6dd5e8c3011ebabf417257d7f07901a7c4311539"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/9193c34f75fd9e1ea8a590d7cced464c3380dc29"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/bd953d52d587d42365e399b96c52dbdb13032070"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/69f174a0673b6b7a29b851adb60bc450cdc0ecc4"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/b5cc2f999927f69723ca53f1f2a3aa37dbeda907"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/ed51de4a86e173c3b0ef78e039c2e49e08b11f16"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-08-17T05:24:08Z"
  }
}