CVE-2024-26887 Bluetooth: btusb: Fix memory leak

Medium 5.5 Published Updated

A memory leak in the Linux kernel Bluetooth driver can lead to resource exhaustion and denial of service when core dumps are enabled.

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

What is CVE-2024-26887?

CVE-2024-26887 is a medium-severity denial of service vulnerability in Linux kernel, published on 17 Apr 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: btusb: Fix memory leak

This checks if CONFIG_DEV_COREDUMP is enabled before attempting to clone the skb and also make sure btmtk_process_coredump frees the skb passed following the same logic.

Weakness: CWE-401

Which versions are affected by CVE-2024-26887?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-26887?

Apply the vendor's patch.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2024-26887 being exploited?

There is no known exploitation of CVE-2024-26887 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as BELL-CVE-2024-26887, DEBIAN-CVE-2024-26887, GHSA-jgcm-2g93-rjcx, UBUNTU-CVE-2024-26887.

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