What’s Vulnerable › Vulnerabilities

CVE-2024-53231: cpufreq: CPPC: Fix possible null-ptr-deref for cpufreq_cpu_get_raw()

• 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 cpufreq_cpu_get_raw() cpufreq_cpu_get_raw() may return NULL if the cpu is not in policy->cpus cpu mask and it will cause null pointer dereference.

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/65fe2f7fdafe2698a343661800434b3f2e51041e
• https://git.kernel.org/stable/c/a357b63fd21e4b2791008c2175ba7a8c235ebce1
• https://git.kernel.org/stable/c/a78e7207564258db6e373e86294a85f9d646d35a
• https://git.kernel.org/stable/c/e07570a8f2cfc51260c6266cb8e1bd4777a610d6
• https://git.kernel.org/stable/c/e9b39f1924b76abc18881e4ce899fb232dd23d12
• https://lists.debian.org/debian-lts-announce/2025/03/msg00001.html

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