CVE-2024-53230: cpufreq: CPPC: Fix possible null-ptr-deref for cppc_get_cpu_cost()
First published: Fri Dec 27 2024(Updated: )
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().
Credit: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Linux Kernel | >=5.19<6.1.120 | |
| Linux Kernel | >=6.2<6.6.64 | |
| Linux Kernel | >=6.7<6.11.11 | |
| Linux Kernel | >=6.12<6.12.2 |
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Reference Links
- https://git.kernel.org/stable/c/1975b481f644f8f841d9c188e3c214fce187f18b
- https://git.kernel.org/stable/c/f05ef81db63889f6f14eb77fd140dac6cedb6f7f
- https://git.kernel.org/stable/c/afd22d9839359829776abb55cc9bc4946e888704
- https://git.kernel.org/stable/c/6be57617a38b3f33266acecdb3c063c1c079aaf7
- https://git.kernel.org/stable/c/1a1374bb8c5926674973d849feed500bc61ad535
Frequently Asked Questions
What is the severity of CVE-2024-53230?
The severity of CVE-2024-53230 is critical due to the potential for a null pointer dereference in the Linux kernel.
How do I fix CVE-2024-53230?
To fix CVE-2024-53230, users should update their Linux kernel to a version that includes the fix, specifically 6.1.120 or higher, 6.6.64 or higher, 6.11.11 or higher, or 6.12.2 or higher.
Which versions of the Linux kernel are vulnerable to CVE-2024-53230?
Versions of the Linux kernel vulnerable to CVE-2024-53230 include those between 5.19 and 6.1.120, 6.2 and 6.6.64, 6.7 and 6.11.11, and 6.12 and 6.12.2.
Is CVE-2024-53230 related to CPU performance issues in Linux?
Yes, CVE-2024-53230 is related to the cpufreq subsystem in Linux, which manages CPU frequency scaling and could lead to performance degradation due to a null pointer dereference.
Who is affected by CVE-2024-53230?
Anyone using the specified vulnerable versions of the Linux kernel on their systems is affected by CVE-2024-53230 and should take immediate action to mitigate the risk.
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