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CVE-2026-90350

Estado: RecibidaSin puntuar—

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

wifi: mt76: reject out-of-range link ids in mt76_vif_link()

mt76_vif_link() indexes mvif->link[] without validating link_id, but callers pass mvif->deflink_id / msta->deflink_id, which hold IEEE80211_LINK_UNSPECIFIED (0xf) until the first link has been added. Since IEEE80211_MLD_MAX_NUM_LINKS is 15, that reads one element past the end of the array, aliasing mt76_vif_data.offchannel_link.

Reachable via mt7996_set_tsf()/mt7996_offset_tsf() and mt7996_net_fill_forward_path(). Bounds check link_id and return NULL, matching mt7996_sta_link() and mt7996_sta_link_protected().

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)

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{
  "id": "CVE-2026-90350",
  "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": "a9384b36a42afc2d715eb74c19a7ee558f09ef82",
              "lessThan": "13f6a9c786022d5213e84d494cc8717c378f5395",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a9384b36a42afc2d715eb74c19a7ee558f09ef82",
              "lessThan": "c1442c345ca8da857fadea1d0797b97347ab6984",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "a9384b36a42afc2d715eb74c19a7ee558f09ef82",
              "lessThan": "9ba744a28c26eaa5cae930688a22e01888395308",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt76.h"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "6.15"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "6.15",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.18.52",
              "versionType": "semver",
              "lessThanOrEqual": "6.18.*"
            },
            {
              "status": "unaffected",
              "version": "7.2.6",
              "versionType": "semver",
              "lessThanOrEqual": "7.2.*"
            },
            {
              "status": "unaffected",
              "version": "7.3-rc1",
              "versionType": "original_commit_for_fix",
              "lessThanOrEqual": "*"
            }
          ],
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt76.h"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-17T17:17:33.810",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/13f6a9c786022d5213e84d494cc8717c378f5395",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/9ba744a28c26eaa5cae930688a22e01888395308",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/c1442c345ca8da857fadea1d0797b97347ab6984",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    }
  ],
  "vulnStatus": "Received",
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: reject out-of-range link ids in mt76_vif_link()\n\nmt76_vif_link() indexes mvif->link[] without validating link_id, but\ncallers pass mvif->deflink_id / msta->deflink_id, which hold\nIEEE80211_LINK_UNSPECIFIED (0xf) until the first link has been added.\nSince IEEE80211_MLD_MAX_NUM_LINKS is 15, that reads one element past the\nend of the array, aliasing mt76_vif_data.offchannel_link.\n\nReachable via mt7996_set_tsf()/mt7996_offset_tsf() and\nmt7996_net_fill_forward_path(). Bounds check link_id and return NULL,\nmatching mt7996_sta_link() and mt7996_sta_link_protected()."
    }
  ],
  "lastModified": "2026-09-17T17:17:33.810",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}