CVE-2024-39465 media: mgb4: Fix double debugfs remove

Medium 5.5 Published Updated

A double removal of debugfs entries in the mgb4 media driver causes a kernel panic, leading to a denial of service.

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-2024-39465?

CVE-2024-39465 is a medium-severity denial of service vulnerability in Linux kernel, published on 25 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:

media: mgb4: Fix double debugfs remove

Fixes an error where debugfs_remove_recursive() is called first on a parent directory and then again on a child which causes a kernel panic.

[hverkuil: added Fixes/Cc tags]

Which versions are affected by CVE-2024-39465?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-39465?

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-2024-39465 being exploited?

There is no known exploitation of CVE-2024-39465 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as BELL-CVE-2024-39465, DEBIAN-CVE-2024-39465, GHSA-gggx-rr6f-2gf2, UBUNTU-CVE-2024-39465.

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