CVE-2024-38620 Bluetooth: HCI: Remove HCI_AMP support

High 8.8 Published Updated

Removal of unused HCI_AMP support in the Linux kernel Bluetooth subsystem to clean up code and remove obsolete controller types.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Local or same network only
Victim action needed
Not needed
Fix
Available

What is CVE-2024-38620?

CVE-2024-38620 is a high-severity vulnerability in Linux kernel, published on 20 Jun 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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

Bluetooth: HCI: Remove HCI_AMP support

Since BT_HS has been remove HCI_AMP controllers no longer has any use so remove it along with the capability of creating AMP controllers.

Since we no longer need to differentiate between AMP and Primary controllers, as only HCI_PRIMARY is left, this also remove hdev->dev_type altogether.

Which versions are affected by CVE-2024-38620?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-38620?

Apply the vendor's patch.

Is CVE-2024-38620 being exploited?

There is no known exploitation of CVE-2024-38620 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as AZL-68108, BELL-CVE-2024-38620, DEBIAN-CVE-2024-38620, GHSA-xhv2-gw9c-73rm, ROOT-OS-DEBIAN-11-CVE-2024-38620, ROOT-OS-DEBIAN-12-CVE-2024-38620 and 1 more.

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