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CVE Record

CVE-2022-50615: perf/x86/intel/uncore: Fix reference count leak in snr_uncore_mmio_map()

In the Linux kernel, the following vulnerability has been resolved: perf/x86/intel/uncore: Fix reference count leak in snr_uncore_mmio_map() pci_get_device() will increase the reference count for the returned pci_dev, so snr_uncore_get_mc_dev() will return a pci_dev with its reference count increased. We need to call pci_dev_put() to decrease the reference count. Let's add the missing pci_dev_put().

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysislow

Security readout for executives and security teams

Plain-English summary

CVE-2022-50615 is a Linux kernel issue in Intel uncore performance-monitoring code. The bug leaks a PCI device reference when mapping uncore MMIO resources. Public sources do not provide CVSS, confirmed impact, or active exploitation evidence. Treat it as a kernel maintenance and stability risk pending vendor guidance.

Executive priority

Handle through normal kernel patch management unless your environment has high sensitivity to Linux host stability. There is no cited active exploitation or severity score. Prioritize validation for Linux server fleets, especially those using Intel hardware and performance-monitoring features.

Technical view

The fixed code adds a missing pci_dev_put() after snr_uncore_get_mc_dev() returns a pci_dev whose reference count was increased by pci_get_device(). The affected area is perf/x86/intel/uncore, specifically snr_uncore_mmio_map(). The CVE record lists Linux kernel versions and multiple stable kernel fix commits, but severity metadata is absent.

Likely exposure

Exposure appears limited to Linux systems running affected kernel builds that include the Intel uncore perf code path. The CVE record lists Linux kernel as affected, with version markers including 5.3, 5.10.163, 5.15.86, 6.0.16, 6.1.2, and 6.2. Confirm exact applicability through distribution advisories.

Exploitation context

No source in the bundle reports active exploitation, public exploit availability, or CISA KEV listing. The described weakness is a reference-count leak, suggesting reliability or resource-management concern, but the public record does not establish privilege escalation, remote access, or denial-of-service impact.

Researcher notes

The public record is sparse: no CVSS, CWE, exploit details, or detailed impact statement. Analysis should focus on commit lineage and distribution backports. Avoid assuming exploitability beyond the documented pci_dev reference leak in perf/x86/intel/uncore.

Mitigation direction

  • Apply a Linux kernel update that includes the referenced stable fixes.
  • Use distribution security advisories to map this CVE to package versions.
  • Prioritize kernel updates on systems relying on Intel uncore performance monitoring.
  • If no vendor package exists, monitor upstream and distribution guidance.

Validation and detection

  • Inventory Linux kernel versions across affected Linux hosts.
  • Check whether installed kernel changelogs include CVE-2022-50615 or the referenced commits.
  • Compare running kernels against distribution fixed-version advisories.
  • Confirm reboot into the updated kernel after patch deployment.
Prepared
Confidence
medium
Sources
7

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.

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CVE-2022-50615 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
0Timeline events
0ADP providers
6Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
LinuxLinuxee49532b38dd084650bf715eabe7e3828fb8d275, ee49532b38dd084650bf715eabe7e3828fb8d275, ee49532b38dd084650bf715eabe7e3828fb8d275, ee49532b38dd084650bf715eabe7e3828fb8d275, ee49532b38dd084650bf715eabe7e3828fb8d275unaffected
LinuxLinux5.3, 0, 5.10.163, 5.15.86, 6.0.16, 6.1.2, 6.2affected
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.