Bug 2324582 (CVE-2024-50178)

Summary: CVE-2024-50178 kernel: cpufreq: loongson3: Use raw_smp_processor_id() in do_service_request()
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
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Priority: medium    
Version: unspecifiedCC: dfreiber, drow, jburrell, vkumar
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Hardware: All   
OS: Linux   
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Bug Depends On: 2324692    
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Description OSIDB Bzimport 2024-11-08 13:46:44 UTC 
In the Linux kernel, the following vulnerability has been resolved:

cpufreq: loongson3: Use raw_smp_processor_id() in do_service_request()

Use raw_smp_processor_id() instead of plain smp_processor_id() in
do_service_request(), otherwise we may get some errors with the driver
enabled:

 BUG: using smp_processor_id() in preemptible [00000000] code: (udev-worker)/208
 caller is loongson3_cpufreq_probe+0x5c/0x250 [loongson3_cpufreq]
Comment 1 Robb Gatica 2024-11-08 15:32:28 UTC 
Upstream advisory:
https://lore.kernel.org/linux-cve-announce/2024110807-CVE-2024-50178-f72f@gregkh/T