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Vulnerability record · CVE-2025-39876 · published 23 September 2025

CVE-2025-39876: Linux kernel null pointer dereference vulnerability

Linux · Linux Kernel

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.

5.5 CVSS 3.1 Medium EPSS 0.15% · top 96.5% CWE-476 · NULL pointer dereference
5.5CVSS 3.1 base score
0.15%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
9References
17 Jun 2026Last modified by NVD

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.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://git.kernel.org/stable/c/03e79de4608bdd48ad6eec272e196124cefaf798 Patch
https://git.kernel.org/stable/c/20a3433d31c2d2bf70ab0abec75f3136b42ae66c Patch
https://git.kernel.org/stable/c/4fe53aaa4271a72fe5fe3e88a45ce01646b68dc5 Patch
https://git.kernel.org/stable/c/5f1bb554a131e59b28482abad21f691390651752 Patch
https://git.kernel.org/stable/c/8c60d12bba14dc655d2d948b1dbf390b3ae39cb8 Patch
https://git.kernel.org/stable/c/93a699d6e92cfdfa9eb9dbb8c653b5322542ca4f Patch
https://git.kernel.org/stable/c/eb148d85e126c47d65be34f2a465d69432ca5541 Patch
https://git.kernel.org/stable/c/fe78891f296ac05bf4e5295c9829ef822f3c32e7 Patch
https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html Mailing ListThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2025-39876), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.