CVE-2023-52857 drm/mediatek: Fix coverity issue with unintentional integer overflow

Medium 5.5 Published Updated

An integer overflow in the Mediatek DRM driver could lead to unexpected behavior, requiring a kernel patch to correct variable type handling.

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-2023-52857?

CVE-2023-52857 is a medium-severity vulnerability in Linux kernel, published on 21 May 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:

drm/mediatek: Fix coverity issue with unintentional integer overflow

1. Instead of multiplying 2 variable of different types. Change to assign a value of one variable and then multiply the other variable.

2. Add a int variable for multiplier calculation instead of calculating different types multiplier with dma_addr_t variable directly.

Weakness: CWE-190

Which versions are affected by CVE-2023-52857?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2023-52857?

Apply the vendor's patch.

Is CVE-2023-52857 being exploited?

There is no known exploitation of CVE-2023-52857 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as AZL-56360, BELL-CVE-2023-52857, DEBIAN-CVE-2023-52857, GHSA-mwgq-3h9h-3q6g, ROOT-OS-UBUNTU-2204-CVE-2023-52857, UBUNTU-CVE-2023-52857.

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