{
  "schema_version": "1.6.1",
  "id": "RPI-CVE-2026-93802",
  "modified": "2026-10-07T17:22:01Z",
  "upstream": [
    "CVE-2026-93802"
  ],
  "published": "2026-09-24T16:08:25Z",
  "summary": "wifi: rsi: validate beacon length before fixed buffer copy",
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: rsi: validate beacon length before fixed buffer copy\n\nrsi_prepare_beacon() copies the mac80211 beacon frame after\nFRAME_DESC_SZ into a management skb whose usable tailroom may be smaller\nthan MAX_MGMT_PKT_SIZE after alignment.\n\nValidate the beacon length against the actual tailroom before the copy\nand skb_put(). Leave ownership of the management skb with the caller on\nerror, matching the existing rsi_send_beacon() cleanup path.",
  "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-2026-93802"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/795ba65f46fe44061f1195951c122cc8ec685d44"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/66a964432b2758a4cf69962366e37581d6e70632"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/7f99742c3c2801f8033d8b7a0a58254d7f24fb1e"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/f08d7f3c916335a0e539f1c45c130615967fac47"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/87710ad633ce4588aec88611d0d0745eb33a6991"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/266f195d5a14eec6c482fd09fbc924584c3371a7"
    },
    {
      "type": "FIX",
      "url": "https://git.kernel.org/stable/c/8ecdeb8b8a33b22c597299043c0dcfce50beb9ea"
    }
  ],
  "database_specific": {
    "source": "https://git.kernel.org/pub/scm/linux/security/vulns.git",
    "upstream_modified": "2026-10-03T11:04:09Z"
  }
}