CVE-2026-74531 - Vulnerability Details - OpenCVE

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: hci_conn: hold conn reference in abort_conn_sync()

There is theoretical UAF if the conn is freed while the hci_sync task is
running.

Hold refcount to avoid that.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Vendors	Products
Linux Subscribe	Linux Kernel Subscribe

No data.

No data.

No data.

Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References

Link	Providers
https://git.kernel.org/stable/c/5761d003daa987ac81463f570713ce9c9dd204e5
https://git.kernel.org/stable/c/64d1645f26aa49b5a86ba2fccd0bb6749ea725a6
https://git.kernel.org/stable/c/963fb4b8e7d1ab07b4ae45bf15d41e667c88caca
https://git.kernel.org/stable/c/e8f9fef362bab431d95371d3406bc720350290c3
https://git.kernel.org/stable/c/fa812cfa81aa3d4a7b6ce8277979af57b3f79712

History

Sat, 15 Aug 2026 12:45:00 +0000

Type	Values Removed	Values Added
Description		In the Linux kernel, the following vulnerability has been resolved: Bluetooth: hci_conn: hold conn reference in abort_conn_sync() There is theoretical UAF if the conn is freed while the hci_sync task is running. Hold refcount to avoid that.
Title		Bluetooth: hci_conn: hold conn reference in abort_conn_sync()
First Time appeared		Linux Linux linux Kernel
CPEs		cpe:2.3:o:linux:linux_kernel::::::::
Vendors & Products		Linux Linux linux Kernel
References		https://git.kernel.org/stable/c/5761d003daa987ac81463f570713ce9c9dd204e5 https://git.kernel.org/stable/c/64d1645f26aa49b5a86ba2fccd0bb6749ea725a6 https://git.kernel.org/stable/c/963fb4b8e7d1ab07b4ae45bf15d41e667c88caca https://git.kernel.org/stable/c/e8f9fef362bab431d95371d3406bc720350290c3 https://git.kernel.org/stable/c/fa812cfa81aa3d4a7b6ce8277979af57b3f79712

Projects

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MITRE

Status: PUBLISHED

Assigner: Linux

Published: 2026-08-15T12:27:45.988Z

Updated: 2026-08-15T12:27:45.988Z

Reserved: 2026-08-15T05:44:03.912Z

Link: CVE-2026-74531

Vulnrichment

No data.

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

No data.

Weaknesses

No weakness.

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