CVEvulnerability
CVE-2026-80677
7.8 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-08-28
- Last modified
- 2026-10-16
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Description
In the Linux kernel, the following vulnerability has been resolved:
driver core: use READ_ONCE() for dev->driver in dev_has_sync_state()
dev_has_sync_state() reads dev->driver twice without holding
device_lock() -- once for the NULL check and once to dereference
->sync_state. Some callers only hold device_links_write_lock, which
doesn't prevent a concurrent unbind from clearing dev->driver via
device_unbind_cleanup().
Fix it by reading dev->driver exactly once with READ_ONCE(), pairing
with the WRITE_ONCE() in device_set_driver().
References
- https://git.kernel.org/stable/c/358697929351f619143f59c6a8a15a4994748b79 git.kernel.org
- https://git.kernel.org/stable/c/51b3e1de53ee5b7775c7ff90e67fdb2665fce938 git.kernel.org
- https://git.kernel.org/stable/c/5e79e0180515b31b2e2244dc3d256fd8b5a07021 git.kernel.org
- https://git.kernel.org/stable/c/860885fcd2611bca8c28dac8b2c1c7ff160f763e git.kernel.org
- https://git.kernel.org/stable/c/89789e4c141904506163dcb91c7289a074573931 git.kernel.org
- https://git.kernel.org/stable/c/9b0f4082a09760939588135d60a8e9cc994bfa3e git.kernel.org
- https://git.kernel.org/stable/c/cc77f0d91e3214e4292208f02a1dc09a31f9aac7 git.kernel.org
- https://git.kernel.org/stable/c/e9506871a8ea304cde48ff4a57226df2aadddae3 git.kernel.org