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CVE Record

CVE-2022-50152: usb: ohci-nxp: Fix refcount leak in ohci_hcd_nxp_probe

In the Linux kernel, the following vulnerability has been resolved: usb: ohci-nxp: Fix refcount leak in ohci_hcd_nxp_probe of_parse_phandle() returns a node pointer with refcount incremented, we should use of_node_put() on it when not need anymore. Add missing of_node_put() to avoid refcount leak.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

This CVE is a Linux kernel bug in the NXP OHCI USB driver where a device-tree reference is not released during probing. The source describes a refcount leak, not remote code execution. Business urgency depends on whether affected Linux kernels with this driver are used in embedded or appliance systems.

Executive priority

Handle through the normal kernel patch program unless your environment depends on NXP-based embedded Linux devices. Escalate priority for appliances with slow patch cycles or unsupported vendor kernels, because validation may require supplier confirmation.

Technical view

The issue is in ohci_hcd_nxp_probe. of_parse_phandle() returns a device-tree node pointer with an incremented refcount, but the code omitted of_node_put() after use. Stable kernel commits add the missing release to prevent the leak. The bundle provides no CVSS, CWE, or exploitability detail.

Likely exposure

Exposure is most plausible on Linux systems using the ohci-nxp USB host controller driver, commonly relevant to NXP-based embedded platforms. The CVE source lists Linux as affected across several kernel version lines, but exact downstream distro or vendor-kernel exposure must be confirmed from vendor advisories.

Exploitation context

The provided sources do not show active exploitation, KEV listing, proof-of-concept availability, or attacker prerequisites. Treat this as a kernel maintenance vulnerability until vendor-specific evidence indicates higher operational risk.

Researcher notes

Evidence is limited to the CVE record and Linux stable commits. The root cause is a reference-count leak caused by missing of_node_put() after of_parse_phandle(). No source in the bundle establishes impact beyond resource leakage or provides exploitation conditions.

Mitigation direction

  • Update to a vendor kernel that includes the referenced stable fixes.
  • Check Linux distribution or device-vendor advisories for your exact kernel build.
  • Prioritize embedded or appliance fleets using NXP OHCI USB support.
  • If patching is delayed, follow vendor guidance for any driver-specific workaround.

Validation and detection

  • Inventory Linux kernel versions across servers, appliances, and embedded devices.
  • Confirm whether the ohci-nxp driver is present or enabled in affected builds.
  • Compare vendor kernel patches against the referenced stable commits.
  • Record unsupported kernels or vendor forks requiring separate remediation tracking.
Prepared
Confidence
medium
Sources
10

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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-2022-50152 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
3Timeline events
0ADP providers
9Source links

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. CVE publishedCVE Program

    The CVE record was published.

  3. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinux73108aa90cbfc663649885a06fe5c1235307de1c, 73108aa90cbfc663649885a06fe5c1235307de1c, 73108aa90cbfc663649885a06fe5c1235307de1c, 73108aa90cbfc663649885a06fe5c1235307de1c, 73108aa90cbfc663649885a06fe5c1235307de1c, 73108aa90cbfc663649885a06fe5c1235307de1c, 73108aa90cbfc663649885a06fe5c1235307de1c, 73108aa90cbfc663649885a06fe5c1235307de1cunaffected
LinuxLinux3.5, 0, 4.14.291, 4.19.256, 5.4.211, 5.10.137, 5.15.61, 5.18.18, 5.19.2, 6.0affected
Weakness

CWE details

No CWE listed

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