In the Linux kernel, the following vulnerability has been resolved: cpufreq: apple-soc: Fix OPP table cleanup apple_soc_cpufreq_init() adds OPP… (CVE-2026-89572)
A vulnerability in the Linux kernel's apple-soc cpufreq driver related to improper cleanup of Operating Performance Points (OPP) tables has been resolved. The issue involved failure paths that did not properly remove OPP tables loaded from firmware, and the use of an incorrect cleanup helper function. The fix involves using the appropriate cpumask OPP helper functions for adding and removing OPP tables, ensuring proper cleanup during initialization failures and driver exit.
AI Analysis
Technical Summary
The Linux kernel's apple-soc cpufreq driver had a vulnerability where apple_soc_cpufreq_init() added OPP tables from firmware but some failure paths failed to remove them properly. The driver incorrectly used dev_pm_opp_remove_all_dynamic() for cleanup, which is not suitable for firmware-loaded OPP tables. The fix replaces this with cpumask OPP helper functions after the policy CPU mask is populated, ensuring correct cleanup on failure paths and during apple_soc_cpufreq_exit(). This also removes the need for a separate dev_pm_opp_set_sharing_cpus() call, as the cpumask helper manages OPP tables for all CPUs in the policy.
Potential Impact
Improper cleanup of OPP tables could potentially lead to resource leaks or inconsistent driver state in the apple-soc cpufreq driver. The exact impact is not detailed, and no known exploits are reported. The vulnerability affects the Linux kernel's apple-soc cpufreq driver specifically.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to address this issue by using the correct cpumask OPP helper functions for cleanup. Users should update to the fixed kernel version containing this patch. No additional mitigation actions are indicated.
In the Linux kernel, the following vulnerability has been resolved: cpufreq: apple-soc: Fix OPP table cleanup apple_soc_cpufreq_init() adds OPP… (CVE-2026-89572)
Description
A vulnerability in the Linux kernel's apple-soc cpufreq driver related to improper cleanup of Operating Performance Points (OPP) tables has been resolved. The issue involved failure paths that did not properly remove OPP tables loaded from firmware, and the use of an incorrect cleanup helper function. The fix involves using the appropriate cpumask OPP helper functions for adding and removing OPP tables, ensuring proper cleanup during initialization failures and driver exit.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Linux kernel's apple-soc cpufreq driver had a vulnerability where apple_soc_cpufreq_init() added OPP tables from firmware but some failure paths failed to remove them properly. The driver incorrectly used dev_pm_opp_remove_all_dynamic() for cleanup, which is not suitable for firmware-loaded OPP tables. The fix replaces this with cpumask OPP helper functions after the policy CPU mask is populated, ensuring correct cleanup on failure paths and during apple_soc_cpufreq_exit(). This also removes the need for a separate dev_pm_opp_set_sharing_cpus() call, as the cpumask helper manages OPP tables for all CPUs in the policy.
Potential Impact
Improper cleanup of OPP tables could potentially lead to resource leaks or inconsistent driver state in the apple-soc cpufreq driver. The exact impact is not detailed, and no known exploits are reported. The vulnerability affects the Linux kernel's apple-soc cpufreq driver specifically.
Mitigation Recommendations
A fix has been implemented in the Linux kernel to address this issue by using the correct cpumask OPP helper functions for cleanup. Users should update to the fixed kernel version containing this patch. No additional mitigation actions are indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-pmg8-6cwh-c6vh
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-89572"]
Threat ID: 6aa4a00e55bf5e2cf5a86698
Added to database: 09/12/2026, 00:42:54 UTC
Last enriched: 09/12/2026, 01:05:18 UTC
Last updated: 09/12/2026, 01:05:18 UTC
Views: 2
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