{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "7b8e1ae886e45aed9274048f2836a70b75ecfa40"
            },
            {
              "fixed": "aa55bec92ba7747dd08feff409f8074c5e052e71"
            },
            {
              "fixed": "ad706fcf6255494613b94418e7243d98065dbeaf"
            },
            {
              "fixed": "34058ad122f7524e33df8e38caba4b1d803b025a"
            },
            {
              "fixed": "a7fd3bae8e11a7c00df6a5021d9ef248ae9f9bf5"
            },
            {
              "fixed": "648f5f03ff50d4bd719106ace0cdf1d8be02cbdd"
            },
            {
              "fixed": "15b960014f24dce5388d4a2e7274e6490cb3c421"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.19.0"
            },
            {
              "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-2026-90353.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\nwifi: mt76: mt7915: fix ext PHY use-after-free on register error path\n\nAfter mt7915_register_ext_phy() succeeded, a failure of the main PHY\nmt7915_init_debugfs() or mt7915_coredump_register() unwound through\nfree_phy2, which called ieee80211_free_hw() on the ext PHY hw while it\nwas still registered with mac80211, since mt76_unregister_device() only\nunregisters the main hw. Unregister the ext PHY (thermal + phy + hw)\nfirst and skip the redundant free.",
  "id": "CVE-2026-90353",
  "modified": "2026-09-19T03:30:30.433693590Z",
  "published": "2026-09-17T16:09:00.217Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/15b960014f24dce5388d4a2e7274e6490cb3c421"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/34058ad122f7524e33df8e38caba4b1d803b025a"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/648f5f03ff50d4bd719106ace0cdf1d8be02cbdd"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/a7fd3bae8e11a7c00df6a5021d9ef248ae9f9bf5"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/aa55bec92ba7747dd08feff409f8074c5e052e71"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/ad706fcf6255494613b94418e7243d98065dbeaf"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90353.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-90353"
    },
    {
      "type": "PACKAGE",
      "url": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "wifi: mt76: mt7915: fix ext PHY use-after-free on register error path"
}