CVE-2023-6679 Kernel: null pointer dereference in dpll_pin_parent_pin_set() in drivers/dpll/dpll_netlink.c

What is CVE-2023-6679?

CVE-2023-6679 is a medium-severity vulnerability in Fedoraproject Fedora, published on 11 Dec 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

A null pointer dereference vulnerability was found in dpll_pin_parent_pin_set() in drivers/dpll/dpll_netlink.c in the Digital Phase Locked Loop (DPLL) subsystem in the Linux kernel. This issue could be exploited to trigger a denial of service.

Weakness: CWE-476

Which versions are affected by CVE-2023-6679?

It affects 3 products.

Products include Fedoraproject Fedora, Linux kernel, Redhat Enterprise Linux.

How do I fix CVE-2023-6679?

Apply the vendor's patch.

Is CVE-2023-6679 being exploited?

There is no known exploitation of CVE-2023-6679 in the wild and no public exploit code.

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Sources

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

Also known as GHSA-9vh7-c87x-8q9v, UBUNTU-CVE-2023-6679.