CVE-2024-42276 nvme-pci: add missing condition check for existence of mapped data

High 7.8 Published Updated

A missing condition check in the Linux kernel NVMe driver can cause 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-2024-42276?

CVE-2024-42276 is a high-severity vulnerability in Linux kernel, published on 17 Aug 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:

nvme-pci: add missing condition check for existence of mapped data

nvme_map_data() is called when request has physical segments, hence the nvme_unmap_data() should have same condition to avoid dereference.

Which versions are affected by CVE-2024-42276?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-42276?

Apply the vendor's patch.

Is CVE-2024-42276 being exploited?

There is no known exploitation of CVE-2024-42276 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as BELL-CVE-2024-42276, DEBIAN-CVE-2024-42276, GHSA-cqhv-gjjx-8p9m, UBUNTU-CVE-2024-42276.

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