CVE-2022-50632
Unknown Unknown - Not Provided

BaseFortify

Publication date: 2025-12-09

Last updated on: 2025-12-09

Assigner: kernel.org

Description
In the Linux kernel, the following vulnerability has been resolved: drivers: perf: marvell_cn10k: Fix hotplug callback leak in tad_pmu_init() tad_pmu_init() won't remove the callback added by cpuhp_setup_state_multi() when platform_driver_register() failed. Remove the callback by cpuhp_remove_multi_state() in fail path. Similar to the handling of arm_ccn_init() in commit 26242b330093 ("bus: arm-ccn: Prevent hotplug callback leak")

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Meta Information

Published
2025-12-09
Last Modified
2025-12-09
Generated
2026-07-07
AI Q&A
2025-12-09
EPSS Evaluated
2026-07-06
NVD
CVE-2022-50632
EUVD
EUVD-2022-55724

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
linux linux_kernel *

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Exploitability

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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability is a hotplug callback leak in the Linux kernel's Marvell CN10k driver. Specifically, the function tad_pmu_init() fails to remove a callback added by cpuhp_setup_state_multi() if platform_driver_register() fails, leading to a resource leak. The fix involves removing the callback in the failure path using cpuhp_remove_multi_state(), similar to a previous fix in the arm_ccn driver.

Impact Analysis

The impact of this vulnerability is a resource leak related to CPU hotplug callbacks in the Linux kernel driver. This could potentially lead to system instability or resource exhaustion if the callback leak accumulates, but no specific impact details or exploit scenarios are provided.

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