What’s Vulnerable › Vulnerabilities

CVE-2024-53230: cpufreq: CPPC: Fix possible null-ptr-deref for cppc_get_cpu_cost()

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-12-27 · updated 2026-06-17
• Weakness: CWE-476

Description

In the Linux kernel, the following vulnerability has been resolved: cpufreq: CPPC: Fix possible null-ptr-deref for cppc_get_cpu_cost() cpufreq_cpu_get_raw() may return NULL if the cpu is not in policy->cpus cpu mask and it will cause null pointer dereference, so check NULL for cppc_get_cpu_cost().

Affected products

• Linux kernel: from 5.19 before 6.1.120; from 6.2 before 6.6.64; from 6.7 before 6.11.11; from 6.12 before 6.12.2 — fixed in 6.1.120, 6.11.11, 6.12.2, 6.6.64

How to fix

Upgrade to a fixed version: Linux kernel 6.1.120, 6.11.11, 6.12.2, 6.6.64. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/1975b481f644f8f841d9c188e3c214fce187f18b
• https://git.kernel.org/stable/c/1a1374bb8c5926674973d849feed500bc61ad535
• https://git.kernel.org/stable/c/6be57617a38b3f33266acecdb3c063c1c079aaf7
• https://git.kernel.org/stable/c/afd22d9839359829776abb55cc9bc4946e888704
• https://git.kernel.org/stable/c/f05ef81db63889f6f14eb77fd140dac6cedb6f7f
• https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html

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