CVE-2026-80677
driver core: use READ_ONCE() for dev->driver in dev_has_sync_state()
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().
INFO
Published Date :
Aug. 28, 2026, 8:16 a.m.
Last Modified :
Aug. 28, 2026, 8:16 a.m.
Remotely Exploit :
No
Source :
416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products
The following products are affected by CVE-2026-80677
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
Solution
- Update the Linux kernel to the latest stable version.
- Ensure device_set_driver() uses WRITE_ONCE().
- Use READ_ONCE() for dev->driver in dev_has_sync_state().
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-80677.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-80677 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-80677
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-80677 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-80677 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Aug. 28, 2026
Action Type Old Value New Value Added 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(). Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/80xxx/CVE-2026-80677.json">CVE-2026-80677</a> Added Reference https://git.kernel.org/stable/c/358697929351f619143f59c6a8a15a4994748b79 Added Reference https://git.kernel.org/stable/c/51b3e1de53ee5b7775c7ff90e67fdb2665fce938 Added Reference https://git.kernel.org/stable/c/5e79e0180515b31b2e2244dc3d256fd8b5a07021 Added Reference https://git.kernel.org/stable/c/860885fcd2611bca8c28dac8b2c1c7ff160f763e Added Reference https://git.kernel.org/stable/c/89789e4c141904506163dcb91c7289a074573931 Added Reference https://git.kernel.org/stable/c/9b0f4082a09760939588135d60a8e9cc994bfa3e Added Reference https://git.kernel.org/stable/c/cc77f0d91e3214e4292208f02a1dc09a31f9aac7 Added Reference https://git.kernel.org/stable/c/e9506871a8ea304cde48ff4a57226df2aadddae3