{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "cacdd67812c6df824704ac078f1770188a485ff9"
            },
            {
              "fixed": "eac18fadc791928379b179e54636494b92f8cf86"
            },
            {
              "fixed": "927fe8c0eb8c10295bc0018c8faa4d91f8fe98c6"
            },
            {
              "fixed": "bd2e8f535ae35beb45a7fcc17ec9bbf8dc4db5fe"
            },
            {
              "fixed": "249cbaa1873550689fab136b74982cbba74c4169"
            },
            {
              "fixed": "29fbc5256c2d8448f084ff179d2e5092ecd1fc54"
            },
            {
              "fixed": "3ae8ad277e2819a281b0e36b55633c8515c16ce7"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.18.0"
            },
            {
              "fixed": "6.1.188"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.157"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.110"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.52"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.2.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90354.json"
  },
  "details": "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.",
  "id": "CVE-2026-90354",
  "modified": "2026-09-19T03:30:54.108041993Z",
  "published": "2026-09-17T16:09:00.880Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/249cbaa1873550689fab136b74982cbba74c4169"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/29fbc5256c2d8448f084ff179d2e5092ecd1fc54"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/3ae8ad277e2819a281b0e36b55633c8515c16ce7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/927fe8c0eb8c10295bc0018c8faa4d91f8fe98c6"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/bd2e8f535ae35beb45a7fcc17ec9bbf8dc4db5fe"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/eac18fadc791928379b179e54636494b92f8cf86"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90354.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90354"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "summary": "wifi: mt76: mt7915: fix double hif2 init on the non-WED path"
}