Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: perf/arm_dmc620: Fix hotplug callback leak in dmc620_pmu_init() dmc620_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")
References
- https://git.kernel.org/stable/c/adf7c3bbcc819db6e95b6a61c9822230f0ef4778
- https://git.kernel.org/stable/c/af170afa97e50d4169cfaa7ff4ec5d3841182641
- https://git.kernel.org/stable/c/b99fbe8d949a99fe456f08c7aad421327685aa50
- https://git.kernel.org/stable/c/d9f564c966e63925aac4ba273a9319d7fb6f4b4e
FAQ
What is CVE-2022-50820?
CVE-2022-50820 is a documented vulnerability. In the Linux kernel, the following vulnerability has been resolved: perf/arm_dmc620: Fix hotplug callback leak in dmc620_pmu_init() dmc620_pmu_init() won't remove the callback added by cpuhp_setup_s...
How severe is CVE-2022-50820?
CVSS scoring is not yet available for CVE-2022-50820. Check NVD for updates.
Is there a patch for CVE-2022-50820?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.