CVE-2026-74530

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_sync: hold conn in hci_connect_big_sync() callback There is theoretical UAF if the conn is freed while the hci_sync task is running. Hold refcount to avoid that. Handle NULL hcon, return 0 + do nothing to match the previous behavior.

CVSS v3 8.8 HIGH

8.8^/10

CVSS v3 : HIGH

Vector :

Exploitability : 2.8 / Impact : 5.9

Attack Vector ADJACENT_NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://git.kernel.org/stable/c/2d91e6244b69d752503b2d44020d8b0e323dbd38
https://git.kernel.org/stable/c/56e78b670356caab0b607e8aad4cf819a1909d07

Configurations

No configuration.

History

No history.

Information

Published : 2026-08-15 13:17

Updated : 2026-08-17 06:19

NVD link : CVE-2026-74530

Mitre link : CVE-2026-74530

CVE.ORG link : CVE-2026-74530

JSON object : View

Products Affected

No product.

CWE

No CWE.

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