In the Linux kernel, the following vulnerability has been resolved: driver core: use READ_ONCE() for dev->driver in dev_has_sync_state()…
CVE-2026-80677 · published 28 Aug 2026
How serious is it
- Severity: high, CVSS score 7.8 out of 10.
- No exploit prediction (EPSS) score yet.
- Not on the CISA list of exploited vulnerabilities.
- No public exploit in Exploit-DB.
Is your app affected by CVE-2026-80677?
Paste this prompt into Claude Code, Cursor or any AI coding tool: it runs a free Shippable scan of your project and fixes what it finds. Built with Lovable, Bolt or v0? Scan your live app. Or upload your package file.
Who is affected
- Linux Linux: 5.6
How to check
- Find out whether you run the affected product and which version, then compare it with the versions above.
How to fix
Copies a prompt for Claude Code, Cursor or Codex that asks it to check whether you run this product.
- Apply the vendor's update or mitigation from the references below. If there is none yet, limit exposure of the affected service until there is.
- If a vulnerable version was live, check your logs and rotate the secrets that server could read.
The advisory
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().
Check your whole app
Dependencies are only half of it. Free and read-only: before you push, run npx shippable-dev scan localhost:3000 in your project folder, no account needed. For your live app, you prove it's yours with a one-line tag first.
References
- git.kernel.org/stable/c/358697929351f619143f59c6a8a15a4994748b79
- git.kernel.org/stable/c/51b3e1de53ee5b7775c7ff90e67fdb2665fce938
- git.kernel.org/stable/c/5e79e0180515b31b2e2244dc3d256fd8b5a07021
- git.kernel.org/stable/c/860885fcd2611bca8c28dac8b2c1c7ff160f763e
- git.kernel.org/stable/c/89789e4c141904506163dcb91c7289a074573931
- git.kernel.org/stable/c/9b0f4082a09760939588135d60a8e9cc994bfa3e
- git.kernel.org/stable/c/cc77f0d91e3214e4292208f02a1dc09a31f9aac7
- git.kernel.org/stable/c/e9506871a8ea304cde48ff4a57226df2aadddae3
Merged from NVD. Last updated 24 Oct 2026. All vulnerabilities · RSS · JSON