{"id":"CVE-2026-80677","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-80677","summary":"driver core: use READ_ONCE() for dev->driver in dev_has_sync_state()","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ndriver core: use READ_ONCE() for dev->driver in dev_has_sync_state()\n\ndev_has_sync_state() reads dev->driver twice without holding\ndevice_lock() -- once for the NULL check and once to dereference\n->sync_state. Some callers only hold device_links_write_lock, which\ndoesn't prevent a concurrent unbind from clearing dev->driver via\ndevice_unbind_cleanup().\n\nFix it by reading dev->driver exactly once with READ_ONCE(), pairing\nwith the WRITE_ONCE() in device_set_driver().","published":"2026-08-28T06:49:15.507Z","modified":"2026-08-29T03:47:17.137406409Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Linux","name":"Kernel","fixedVersion":"5.10.261"}],"fix":null,"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"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"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-29T03:47:17.137406409Z"}}