Riskcovery

CVE-2022-50820

perf/arm_dmc620: Fix hotplug callback leak in dmc620_pmu_init()

State
Published
Severity
Not scored
Published
Dec 30, 2025
Updated
May 11, 2026
Reserved
Dec 30, 2025

Read the record on cve.org

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")

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 53c218da220c3619b5befec4674ffa35d590092a to before b99fbe8d949a99fe456f08c7aad421327685aa50Affected
  • 53c218da220c3619b5befec4674ffa35d590092a to before af170afa97e50d4169cfaa7ff4ec5d3841182641Affected
  • 53c218da220c3619b5befec4674ffa35d590092a to before adf7c3bbcc819db6e95b6a61c9822230f0ef4778Affected
  • 53c218da220c3619b5befec4674ffa35d590092a to before d9f564c966e63925aac4ba273a9319d7fb6f4b4eAffected
LinuxLinux
  • 5.11Affected
  • before 5.11Not affected
  • 5.15.86 through 5.15.*Not affected
  • 6.0.16 through 6.0.*Not affected
  • 6.1.2 through 6.1.*Not affected
  • 6.2 and laterNot affected

References

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