CVE-2025-40346

Ecosystem	Package	Version

Vulnerabilities

CVE-2025-40346

In the Linux kernel, the following vulnerability has been resolved: arch_topology: Fix incorrect error check in topology_parse_cpu_capacity() Fix incorrect use of PTR_ERR_OR_ZERO() in topology_parse_cpu_capacity() which causes the code to proceed with NULL clock pointers. The current logic uses !PTR_ERR_OR_ZERO(cpu_clk) which evaluates to true for both valid pointers and NULL, leading to potential NULL pointer dereference in clk_get_rate(). Per include/linux/err.h documentation, PTR_ERR_OR_ZERO(ptr) returns: "The error code within @ptr if it is an error pointer; 0 otherwise." This means PTR_ERR_OR_ZERO() returns 0 for both valid pointers AND NULL pointers. Therefore !PTR_ERR_OR_ZERO(cpu_clk) evaluates to true (proceed) when cpu_clk is either valid or NULL, causing clk_get_rate(NULL) to be called when of_clk_get() returns NULL. Replace with !IS_ERR_OR_NULL(cpu_clk) which only proceeds for valid pointers, preventing potential NULL pointer dereference in clk_get_rate().

Published Dec 17, 2025

https://lore.kernel.org/linux-cve-announce/2025121633-CVE-2025-40346-623f@gregkh/

CVSS ScoreMedium

6.8


rpm	kernel	5.14.0-160.el9
rpm	kernel	5.14.0-162.12.1.el9_1
rpm	kernel	5.14.0-162.18.1.el9_1
rpm	kernel	5.14.0-162.22.2.el9_1
rpm	kernel	5.14.0-162.23.1.el9_1
rpm	kernel	5.14.0-162.6.1.el9_1
rpm	kernel	5.14.0-283.el9
rpm	kernel	5.14.0-284.11.1.el9_2
rpm	kernel	5.14.0-284.18.1.el9_2
rpm	kernel	5.14.0-284.25.1.0.1.el9_2
rpm	kernel	5.14.0-284.25.1.el9_2
rpm	kernel	5.14.0-284.30.0.1.el9_2
rpm	kernel	5.14.0-284.30.1.el9_2
rpm	kernel	5.14.0-362.13.0.1.el9_3
rpm	kernel	5.14.0-362.13.1.el9_3
rpm	kernel	5.14.0-362.18.0.1.el9_3
rpm	kernel	5.14.0-362.18.0.2.el9_3
rpm	kernel	5.14.0-362.18.1.el9_3
rpm	kernel	5.14.0-362.24.1.0.1.el9_3
rpm	kernel	5.14.0-362.24.1.0.2.el9_3
rpm	kernel	5.14.0-362.24.1.0.3.el9_3
rpm	kernel	5.14.0-362.24.1.0.4.el9_3
rpm	kernel	5.14.0-362.24.1.el9_3
rpm	kernel	5.14.0-362.8.1.el9_3
rpm	kernel	5.14.0-427.13.1.0.1.el9_4
rpm	kernel	5.14.0-427.13.1.el9_4
rpm	kernel	5.14.0-427.16.1.0.1.el9_4
rpm	kernel	5.14.0-427.16.1.el9_4
rpm	kernel	5.14.0-427.18.1.0.1.el9_4
rpm	kernel	5.14.0-427.18.1.el9_4
rpm	kernel	5.14.0-427.20.1.0.1.el9_4
rpm	kernel	5.14.0-427.20.1.el9_4
rpm	kernel	5.14.0-427.22.1.0.1.el9_4
rpm	kernel	5.14.0-427.22.1.el9_4
rpm	kernel	5.14.0-427.24.1.0.1.el9_4
rpm	kernel	5.14.0-427.24.1.el9_4
rpm	kernel	5.14.0-427.26.1.0.1.el9_4
rpm	kernel	5.14.0-427.26.1.el9_4
rpm	kernel	5.14.0-427.28.1.0.1.el9_4
rpm	kernel	5.14.0-427.28.1.el9_4
rpm	kernel	5.14.0-427.31.1.0.1.el9_4
rpm	kernel	5.14.0-427.31.1.el9_4
rpm	kernel	5.14.0-427.33.1.0.1.el9_4
rpm	kernel	5.14.0-427.33.1.el9_4
rpm	kernel	5.14.0-427.35.1.0.1.el9_4
rpm	kernel	5.14.0-427.35.1.el9_4
rpm	kernel	5.14.0-427.37.1.0.1.el9_4
rpm	kernel	5.14.0-427.37.1.el9_4
rpm	kernel	5.14.0-427.40.1.0.1.el9_4
rpm	kernel	5.14.0-427.40.1.el9_4

Ecosystem	Package	Version

CVE-2025-40346 | Components Impacted | Sonatype Guide | Sonatype Guide

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CVE-2025-40346