CVE-2023-52561 arm64: dts: qcom: sdm845-db845c: Mark cont splash memory region as reserved

Medium 5.5 Published Updated

A missing reserved memory region for the framebuffer in the Linux kernel for Qualcomm SDM845 devices causes a kernel panic, leading to 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-2023-52561?

CVE-2023-52561 is a medium-severity denial of service vulnerability in Linux kernel, published on 2 Mar 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:

arm64: dts: qcom: sdm845-db845c: Mark cont splash memory region as reserved

Adding a reserved memory region for the framebuffer memory (the splash memory region set up by the bootloader).

It fixes a kernel panic (arm-smmu: Unhandled context fault at this particular memory region) reported on DB845c running v5.10.y.

Which versions are affected by CVE-2023-52561?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2023-52561?

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-2023-52561 being exploited?

There is no known exploitation of CVE-2023-52561 in the wild and no public exploit code.

All Linux kernel vulnerabilities

Sources

Also known as AZL-59611, BELL-CVE-2023-52561, DEBIAN-CVE-2023-52561, GHSA-hg53-xx34-25ww, ROOT-OS-UBUNTU-2204-CVE-2023-52561, UBUNTU-CVE-2023-52561.

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