{
  "affected": [
    {
      "ranges": [
        {
          "events": [
            {
              "introduced": "ac338acf514e7b578fa9e3742ec2c292323b4c1a"
            },
            {
              "fixed": "89789e4c141904506163dcb91c7289a074573931"
            },
            {
              "fixed": "51b3e1de53ee5b7775c7ff90e67fdb2665fce938"
            },
            {
              "fixed": "358697929351f619143f59c6a8a15a4994748b79"
            },
            {
              "fixed": "5e79e0180515b31b2e2244dc3d256fd8b5a07021"
            },
            {
              "fixed": "860885fcd2611bca8c28dac8b2c1c7ff160f763e"
            },
            {
              "fixed": "cc77f0d91e3214e4292208f02a1dc09a31f9aac7"
            },
            {
              "fixed": "9b0f4082a09760939588135d60a8e9cc994bfa3e"
            },
            {
              "fixed": "e9506871a8ea304cde48ff4a57226df2aadddae3"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "6d88283a49425eb469aa60ffebe76539e73c933e"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        },
        {
          "events": [
            {
              "introduced": "5.5.13"
            },
            {
              "fixed": "5.6"
            }
          ],
          "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
          "type": "GIT"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Linux",
        "name": "Kernel"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "5.6.0"
            },
            {
              "fixed": "5.10.261"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.11.0"
            },
            {
              "fixed": "5.15.212"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "5.16.0"
            },
            {
              "fixed": "6.1.178"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.2.0"
            },
            {
              "fixed": "6.6.145"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.7.0"
            },
            {
              "fixed": "6.12.97"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.13.0"
            },
            {
              "fixed": "6.18.40"
            }
          ],
          "type": "ECOSYSTEM"
        },
        {
          "events": [
            {
              "introduced": "6.19.0"
            },
            {
              "fixed": "7.1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80677.json"
  },
  "details": "In the Linux kernel, the following vulnerability has been resolved:\n\ndriver core: use READ_ONCE() for dev-\u003edriver in dev_has_sync_state()\n\ndev_has_sync_state() reads dev-\u003edriver twice without holding\ndevice_lock() -- once for the NULL check and once to dereference\n-\u003esync_state. Some callers only hold device_links_write_lock, which\ndoesn't prevent a concurrent unbind from clearing dev-\u003edriver via\ndevice_unbind_cleanup().\n\nFix it by reading dev-\u003edriver exactly once with READ_ONCE(), pairing\nwith the WRITE_ONCE() in device_set_driver().",
  "id": "CVE-2026-80677",
  "modified": "2026-08-31T03:30:46.693169696Z",
  "published": "2026-08-28T06:49:15.507Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/358697929351f619143f59c6a8a15a4994748b79"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/51b3e1de53ee5b7775c7ff90e67fdb2665fce938"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/5e79e0180515b31b2e2244dc3d256fd8b5a07021"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/860885fcd2611bca8c28dac8b2c1c7ff160f763e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/89789e4c141904506163dcb91c7289a074573931"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/9b0f4082a09760939588135d60a8e9cc994bfa3e"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/cc77f0d91e3214e4292208f02a1dc09a31f9aac7"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/stable/c/e9506871a8ea304cde48ff4a57226df2aadddae3"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80677.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-80677"
    },
    {
      "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:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "driver core: use READ_ONCE() for dev-\u003edriver in dev_has_sync_state()"
}