CVE-2024-42100 clk: sunxi-ng: common: Don't call hw_to_ccu_common on hw without common

What is CVE-2024-42100?

CVE-2024-42100 is a medium-severity vulnerability in Linux kernel, published on 30 Jul 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:

clk: sunxi-ng: common: Don't call hw_to_ccu_common on hw without common

In order to set the rate range of a hw sunxi_ccu_probe calls hw_to_ccu_common() assuming all entries in desc->ccu_clks are contained in a ccu_common struct. This assumption is incorrect and, in consequence, causes invalid pointer de-references.

Remove the faulty call. Instead, add one more loop that iterates over the ccu_clks and sets the rate range, if required.

Weakness: CWE-476

Which versions are affected by CVE-2024-42100?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-42100?

Apply the vendor's patch.

Is CVE-2024-42100 being exploited?

There is no known exploitation of CVE-2024-42100 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2024-42100, DEBIAN-CVE-2024-42100, GHSA-v6gx-hf69-q84x, UBUNTU-CVE-2024-42100.