What’s Vulnerable › Vulnerabilities

CVE-2026-68390: Bluetooth: hci_sync: hold hdev->lock for hci_conn_params lookups

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-08-10 · updated 2026-08-17

Description

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: hold hdev->lock for hci_conn_params lookups hci_conn_params_lookup requires hdev->lock be held, otherwise the list iteration or param access is not safe. Hold hdev->lock for params lookups in hci_sync.

Affected products

• Linux kernel: 6.19 — fixed in 7.2

How to fix

Upgrade to a fixed version: Linux kernel 7.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/8d892bec1dd134761cabec6ba23fe315d0f20f98
• https://git.kernel.org/stable/c/c363202ec841df36421ec280eea3d5f94f556143

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