CVE-2025-39876 net: fec: Fix possible NPD in fec_enet_phy_reset_after_clk_enable()

What is CVE-2025-39876?

CVE-2025-39876 is a medium-severity vulnerability in Debian Debian Linux, published on 23 Sep 2025. 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:

net: fec: Fix possible NPD in fec_enet_phy_reset_after_clk_enable()

The function of_phy_find_device may return NULL, so we need to take care before dereferencing phy_dev.

Weakness: CWE-476

Which versions are affected by CVE-2025-39876?

It affects 2 products.

Products include Debian Debian Linux, Linux kernel.

How do I fix CVE-2025-39876?

Apply the vendor's patch.

Is CVE-2025-39876 being exploited?

There is no known exploitation of CVE-2025-39876 in the wild and no public exploit code.

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All Debian Debian Linux vulnerabilities

Sources

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

Also known as AZL-67659, AZL-74933, BELL-CVE-2025-39876, DEBIAN-CVE-2025-39876, GHSA-88fr-f63h-6pq4, ROOT-OS-DEBIAN-11-CVE-2025-39876 and 3 more.