Security readout for executives and security teams
Plain-English summary
CVE-2022-50632 is a Linux kernel cleanup bug in the Marvell CN10K performance monitoring driver. If driver registration fails, a CPU hotplug callback may be left registered. Public data does not show active exploitation or a CVSS score. Business urgency is highest for environments running Linux on affected Marvell CN10K platforms.
Executive priority
Treat as targeted kernel maintenance, not an emergency, unless your organization operates Marvell CN10K Linux systems. Include it in normal kernel patch cycles and confirm vendor backports for any affected appliances, servers, or embedded platforms.
Technical view
The issue is in drivers/perf/marvell_cn10k tad_pmu_init(). The kernel fix removes a callback via cpuhp_remove_multi_state() when platform_driver_register() fails. The CVE record lists Linux versions around 5.17 through 6.2 as affected, with stable kernel commits referenced as fixes. Exposure depends on kernel version and whether the Marvell CN10K PMU driver is present and relevant.
Likely exposure
Likely limited to Linux systems using kernels in the affected range with the Marvell CN10K perf driver available. General Linux fleets may not be exposed if they do not run this hardware or driver. Version data in the source is sparse, so distribution advisories should be checked.
Exploitation context
No provided source reports active exploitation, public weaponization, or CISA KEV listing. The described flaw is a callback leak on an initialization failure path, suggesting reliability or resource-management impact rather than a clearly documented remote compromise path.
Researcher notes
Evidence is limited to the CVE record and Linux stable commits. No CVSS, CWE, exploit status, or detailed impact statement is provided. The safest assessment is a low-confidence impact profile with remediation through upstream or distribution kernel fixes.
Mitigation direction
- Identify systems running Linux kernels in the affected version range.
- Prioritize Marvell CN10K-based systems or kernels including the marvell_cn10k perf driver.
- Apply vendor or distribution kernel updates containing the referenced stable fixes.
- If unavailable, monitor vendor advisories for backported fixes and reboot requirements.
Validation and detection
- Check deployed kernel versions against distribution security advisories.
- Confirm whether the Marvell CN10K perf driver is built or loaded.
- Verify patched kernels include the referenced stable commits or vendor backports.
- Review change management records for kernel update completion on CN10K systems.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CVE-2022-50632 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.