CVE-2022-50820 (GCVE-0-2022-50820)

Vulnerability from cvelistv5 – Published: 2025-12-30 12:08 – Updated: 2025-12-30 12:08
VLAI?
Title
perf/arm_dmc620: Fix hotplug callback leak in dmc620_pmu_init()
Summary
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")
Severity ?
No CVSS data available.
Assigner
References
Impacted products
Vendor Product Version
Linux Linux Affected: 53c218da220c3619b5befec4674ffa35d590092a , < b99fbe8d949a99fe456f08c7aad421327685aa50 (git)
Affected: 53c218da220c3619b5befec4674ffa35d590092a , < af170afa97e50d4169cfaa7ff4ec5d3841182641 (git)
Affected: 53c218da220c3619b5befec4674ffa35d590092a , < adf7c3bbcc819db6e95b6a61c9822230f0ef4778 (git)
Affected: 53c218da220c3619b5befec4674ffa35d590092a , < d9f564c966e63925aac4ba273a9319d7fb6f4b4e (git)
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    Linux Linux Affected: 5.11
Unaffected: 0 , < 5.11 (semver)
Unaffected: 5.15.86 , ≤ 5.15.* (semver)
Unaffected: 6.0.16 , ≤ 6.0.* (semver)
Unaffected: 6.1.2 , ≤ 6.1.* (semver)
Unaffected: 6.2 , ≤ * (original_commit_for_fix)
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          "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nperf/arm_dmc620: Fix hotplug callback leak in dmc620_pmu_init()\n\ndmc620_pmu_init() won\u0027t remove the callback added by\ncpuhp_setup_state_multi() when platform_driver_register() failed. Remove\nthe callback by cpuhp_remove_multi_state() in fail path.\n\nSimilar to the handling of arm_ccn_init() in commit 26242b330093 (\"bus:\narm-ccn: Prevent hotplug callback leak\")"
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    "datePublished": "2025-12-30T12:08:34.894Z",
    "dateReserved": "2025-12-30T12:06:07.131Z",
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  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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