CVE-2022-50473
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-04

Last updated on: 2025-10-06

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: cpufreq: Init completion before kobject_init_and_add() In cpufreq_policy_alloc(), it will call uninitialed completion in cpufreq_sysfs_release() when kobject_init_and_add() fails. And that will cause a crash such as the following page fault in complete: BUG: unable to handle page fault for address: fffffffffffffff8 [..] RIP: 0010:complete+0x98/0x1f0 [..] Call Trace: kobject_put+0x1be/0x4c0 cpufreq_online.cold+0xee/0x1fd cpufreq_add_dev+0x183/0x1e0 subsys_interface_register+0x3f5/0x4e0 cpufreq_register_driver+0x3b7/0x670 acpi_cpufreq_init+0x56c/0x1000 [acpi_cpufreq] do_one_initcall+0x13d/0x780 do_init_module+0x1c3/0x630 load_module+0x6e67/0x73b0 __do_sys_finit_module+0x181/0x240 do_syscall_64+0x35/0x80 entry_SYSCALL_64_after_hwframe+0x63/0xcd
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Meta Information
Published
2025-10-04
Last Modified
2025-10-06
Generated
2026-06-16
AI Q&A
2025-10-04
EPSS Evaluated
2026-06-14
NVD
CVE-2022-50473
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel From 5.15.160 (inc) to 5.16 (inc)
Helpful Resources
Exploitability
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CWE ID Description
CWE-UNKNOWN
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Executive Summary

This vulnerability in the Linux kernel occurs in the cpufreq subsystem. Specifically, in the function cpufreq_policy_alloc(), an uninitialized completion is called in cpufreq_sysfs_release() when kobject_init_and_add() fails. This leads to a crash caused by a page fault in the complete function, resulting in system instability or kernel panic.

Impact Analysis

This vulnerability can cause the Linux kernel to crash due to a page fault, leading to system instability or a kernel panic. This can result in downtime, loss of data, or disruption of services running on the affected system.

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