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CVE-2026-90354

Estado: RecibidaSin puntuar—

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

wifi: mt76: mt7915: fix double hif2 init on the non-WED path

mt7915_pci_init_hif2() was called unconditionally and again inside the WED-inactive branch. The helper increments the global hif_idx, writes the PCIe RECOG_ID register and takes a get_device() reference via mt7915_pci_get_hif2(), while removal only drops one reference. On non-WED dual-hif hardware this double-incremented hif_idx, wrote RECOG_ID twice and leaked a device reference. Only the call inside the WED-inactive branch is correct; drop the unconditional one. hif2 is already initialised to NULL.

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-2026-90354",
  "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": "cacdd67812c6df824704ac078f1770188a485ff9",
              "lessThan": "eac18fadc791928379b179e54636494b92f8cf86",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "cacdd67812c6df824704ac078f1770188a485ff9",
              "lessThan": "927fe8c0eb8c10295bc0018c8faa4d91f8fe98c6",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "cacdd67812c6df824704ac078f1770188a485ff9",
              "lessThan": "bd2e8f535ae35beb45a7fcc17ec9bbf8dc4db5fe",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "cacdd67812c6df824704ac078f1770188a485ff9",
              "lessThan": "249cbaa1873550689fab136b74982cbba74c4169",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "cacdd67812c6df824704ac078f1770188a485ff9",
              "lessThan": "29fbc5256c2d8448f084ff179d2e5092ecd1fc54",
              "versionType": "git"
            },
            {
              "status": "affected",
              "version": "cacdd67812c6df824704ac078f1770188a485ff9",
              "lessThan": "3ae8ad277e2819a281b0e36b55633c8515c16ce7",
              "versionType": "git"
            }
          ],
          "programFiles": [
            "drivers/net/wireless/mediatek/mt76/mt7915/pci.c"
          ],
          "defaultStatus": "unaffected"
        },
        {
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "vendor": "Linux",
          "product": "Linux",
          "versions": [
            {
              "status": "affected",
              "version": "5.18"
            },
            {
              "status": "unaffected",
              "version": "0",
              "lessThan": "5.18",
              "versionType": "semver"
            },
            {
              "status": "unaffected",
              "version": "6.1.188",
              "versionType": "semver",
              "lessThanOrEqual": "6.1.*"
            },
            {
              "status": "unaffected",
              "version": "6.6.157",
              "versionType": "semver",
              "lessThanOrEqual": "6.6.*"
            },
            {
              "status": "unaffected",
              "version": "6.12.110",
              "versionType": "semver",
              "lessThanOrEqual": "6.12.*"
            },
            {
              "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/mt7915/pci.c"
          ],
          "defaultStatus": "affected"
        }
      ]
    }
  ],
  "published": "2026-09-17T17:17:34.260",
  "references": [
    {
      "url": "https://git.kernel.org/stable/c/249cbaa1873550689fab136b74982cbba74c4169",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/29fbc5256c2d8448f084ff179d2e5092ecd1fc54",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/3ae8ad277e2819a281b0e36b55633c8515c16ce7",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/927fe8c0eb8c10295bc0018c8faa4d91f8fe98c6",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/bd2e8f535ae35beb45a7fcc17ec9bbf8dc4db5fe",
      "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
    },
    {
      "url": "https://git.kernel.org/stable/c/eac18fadc791928379b179e54636494b92f8cf86",
      "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: mt7915: fix double hif2 init on the non-WED path\n\nmt7915_pci_init_hif2() was called unconditionally and again inside the\nWED-inactive branch. The helper increments the global hif_idx, writes the\nPCIe RECOG_ID register and takes a get_device() reference via\nmt7915_pci_get_hif2(), while removal only drops one reference. On non-WED\ndual-hif hardware this double-incremented hif_idx, wrote RECOG_ID twice and\nleaked a device reference. Only the call inside the WED-inactive branch is\ncorrect; drop the unconditional one. hif2 is already initialised to NULL."
    }
  ],
  "lastModified": "2026-09-17T17:17:34.260",
  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}