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CVE-2022-50820
perf/arm_dmc620: Fix hotplug callback leak in dmc620_pmu_init()
Not scoredEPSS 0.24%
- Published
- Updated
- Reserved
- Assigned by
- Linux
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
No CVSS score yet: neither the CNA, CISA nor NVD has scored this CVE. NVD status: Deferred.
- EPSS (exploitation in 30 days)
- 0.24% · top 85% of all CVEs (7 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Not scored.
Affected products
- affected 53c218da220c3619b5befec4674ffa35d590092a – < b99fbe8d949a99fe456f08c7aad421327685aa50
- affected 53c218da220c3619b5befec4674ffa35d590092a – < af170afa97e50d4169cfaa7ff4ec5d3841182641
- affected 53c218da220c3619b5befec4674ffa35d590092a – < adf7c3bbcc819db6e95b6a61c9822230f0ef4778
- affected 53c218da220c3619b5befec4674ffa35d590092a – < d9f564c966e63925aac4ba273a9319d7fb6f4b4e
- affected 5.11
- unaffected < 5.11
- unaffected 5.15.86 – ≤ 5.15.*
- unaffected 6.0.16 – ≤ 6.0.*
- unaffected 6.1.2 – ≤ 6.1.*
- unaffected 6.2 – ≤ *
References (4)
- https://git.kernel.org/stable/c/b99fbe8d949a99fe456f08c7aad421327685aa50 (opens in a new tab)
- https://git.kernel.org/stable/c/af170afa97e50d4169cfaa7ff4ec5d3841182641 (opens in a new tab)
- https://git.kernel.org/stable/c/adf7c3bbcc819db6e95b6a61c9822230f0ef4778 (opens in a new tab)
- https://git.kernel.org/stable/c/d9f564c966e63925aac4ba273a9319d7fb6f4b4e (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
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[](https://trackcve.app/cve/CVE-2022-50820)Record last updated .