Bluetooth: hci_sync: hold conn in hci_connect_pa_sync() callback
CVE-2026-74529 · published 15 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-2026-74529?
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: eb8b860e87b296bd1874c79a668081efd00f9754 to < 40ef39f1d755ff8d54423345c73d187e77854d0b, 6d0417e4e1cf66fd917f06f0454958362714ef7d to < 68ffe4265775ed9e09e18e9a3b388740e25257bf, 6d0417e4e1cf66fd917f06f0454958362714ef7d to < c53c70ec289ee12f20c4f1b2fbfd151762c01f67, 6d0417e4e1cf66fd917f06f0454958362714ef7d to < 44fc74069d8988f2825246f9401218e29de2c0ab
- Linux Linux: 6.15
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:
Bluetooth: hci_sync: hold conn in hci_connect_pa_sync() callback
There is theoretical UAF if the conn is freed while the hci_sync task is
running.
Hold refcount to avoid that.
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/40ef39f1d755ff8d54423345c73d187e77854d0b
- git.kernel.org/stable/c/68ffe4265775ed9e09e18e9a3b388740e25257bf
- git.kernel.org/stable/c/c53c70ec289ee12f20c4f1b2fbfd151762c01f67
- git.kernel.org/stable/c/44fc74069d8988f2825246f9401218e29de2c0ab
Merged from CVE List. Last updated 25 Oct 2026. All vulnerabilities · RSS · JSON