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CVE-2026-93802

Estado: RecibidaSin puntuar—

In the Linux kernel, the following vulnerability has been resolved:

wifi: rsi: validate beacon length before fixed buffer copy

rsi_prepare_beacon() copies the mac80211 beacon frame after FRAME_DESC_SZ into a management skb whose usable tailroom may be smaller than MAX_MGMT_PKT_SIZE after alignment.

Validate the beacon length against the actual tailroom before the copy and skb_put(). Leave ownership of the management skb with the caller on error, matching the existing rsi_send_beacon() cleanup path.

CVSS

NVD no ha asignado puntuación CVSS a esta CVE (habitual desde el cambio de política de abril de 2026).

Probabilidad de explotación (EPSS)

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Linux — Linux KernelAI

Referencias

JSON original (NVD)

Mostrar
{
  "id": "CVE-2026-93802",
  "cveTags": [],
  "metrics": {},
  "affected": [
    {
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
      "affectedData": [
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "d26a9559403c7c3ec3b430f5825bc22c3d40abdb",
              "lessThan": "795ba65f46fe44061f1195951c122cc8ec685d44",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d26a9559403c7c3ec3b430f5825bc22c3d40abdb",
              "lessThan": "66a964432b2758a4cf69962366e37581d6e70632",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d26a9559403c7c3ec3b430f5825bc22c3d40abdb",
              "lessThan": "7f99742c3c2801f8033d8b7a0a58254d7f24fb1e",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d26a9559403c7c3ec3b430f5825bc22c3d40abdb",
              "lessThan": "f08d7f3c916335a0e539f1c45c130615967fac47",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d26a9559403c7c3ec3b430f5825bc22c3d40abdb",
              "lessThan": "87710ad633ce4588aec88611d0d0745eb33a6991",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d26a9559403c7c3ec3b430f5825bc22c3d40abdb",
              "lessThan": "266f195d5a14eec6c482fd09fbc924584c3371a7",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "d26a9559403c7c3ec3b430f5825bc22c3d40abdb",
              "lessThan": "8ecdeb8b8a33b22c597299043c0dcfce50beb9ea",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/wireless/rsi/rsi_91x_hal.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "4.14"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "4.14",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "5.10.271",
              "versionType": "semver",
              "lessThanOrEqual": "5.10.*"
            },
            {
              "status": "unaffected",
              "version": "5.15.222",
              "versionType": "semver",
              "lessThanOrEqual": "5.15.*"
            },
            {
              "status": "unaffected",
              "version": "6.1.189",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.158",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.111",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "status": "unaffected",
              "version": "6.18.53",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/wireless/rsi/rsi_91x_hal.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-24T17:17:13.127",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/266f195d5a14eec6c482fd09fbc924584c3371a7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/66a964432b2758a4cf69962366e37581d6e70632",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/795ba65f46fe44061f1195951c122cc8ec685d44",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/7f99742c3c2801f8033d8b7a0a58254d7f24fb1e",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/87710ad633ce4588aec88611d0d0745eb33a6991",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/8ecdeb8b8a33b22c597299043c0dcfce50beb9ea",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/f08d7f3c916335a0e539f1c45c130615967fac47",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    }
  ],
  "lastModified": "2026-10-03T11:17:49.843",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}