{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "d26a9559403c7c3ec3b430f5825bc22c3d40abdb"
            },
            {
              "fixed": "87710ad633ce4588aec88611d0d0745eb33a6991"
            },
            {
              "fixed": "266f195d5a14eec6c482fd09fbc924584c3371a7"
            },
            {
              "fixed": "8ecdeb8b8a33b22c597299043c0dcfce50beb9ea"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.14.0"
            },
            {
              "fixed": "6.12.111"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.53"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93802.json"
  },
  "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.",
  "id": "CVE-2026-93802",
  "modified": "2026-09-27T03:30:13.455893016Z",
  "published": "2026-09-24T16:02:36.341Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/266f195d5a14eec6c482fd09fbc924584c3371a7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/87710ad633ce4588aec88611d0d0745eb33a6991"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/8ecdeb8b8a33b22c597299043c0dcfce50beb9ea"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/93xxx/CVE-2026-93802.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93802"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "wifi: rsi: validate beacon length before fixed buffer copy"
}