CVE-2024-47756 PCI: keystone: Fix if-statement expression in ks_pcie_quirk()

Medium 5.5 Published Updated

A logic error in the Linux kernel PCI Keystone driver causes a NULL pointer dereference, leading to a system crash.

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-2024-47756?

CVE-2024-47756 is a medium-severity vulnerability in Linux kernel, published on 21 Oct 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:

PCI: keystone: Fix if-statement expression in ks_pcie_quirk()

This code accidentally uses && where || was intended. It potentially results in a NULL dereference.

Thus, fix the if-statement expression to use the correct condition.

[kwilczynski: commit log]

Weakness: CWE-476

Which versions are affected by CVE-2024-47756?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-47756?

Apply the vendor's patch.

Is CVE-2024-47756 being exploited?

There is no known exploitation of CVE-2024-47756 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as AZL-50646, BELL-CVE-2024-47756, DEBIAN-CVE-2024-47756, GHSA-fw6v-6fqv-jxv4, UBUNTU-CVE-2024-47756.

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