Bug 2365004 (CVE-2025-37830)

Summary: CVE-2025-37830 kernel: cpufreq: scmi: Fix null-ptr-deref in scmi_cpufreq_get_rate()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
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Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Description OSIDB Bzimport 2025-05-08 07:01:08 UTC 
In the Linux kernel, the following vulnerability has been resolved:

cpufreq: scmi: Fix null-ptr-deref in scmi_cpufreq_get_rate()

cpufreq_cpu_get_raw() can return NULL when the target CPU is not present
in the policy->cpus mask. scmi_cpufreq_get_rate() does not check for
this case, which results in a NULL pointer dereference.

Add NULL check after cpufreq_cpu_get_raw() to prevent this issue.
Comment 1 Avinash Hanwate 2025-05-08 12:45:44 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2025050823-CVE-2025-37830-2d36@gregkh/T