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CVE Record

CVE-2022-50703: soc: qcom: smsm: Fix refcount leak bugs in qcom_smsm_probe()

In the Linux kernel, the following vulnerability has been resolved: soc: qcom: smsm: Fix refcount leak bugs in qcom_smsm_probe() There are two refcount leak bugs in qcom_smsm_probe(): (1) The 'local_node' is escaped out from for_each_child_of_node() as the break of iteration, we should call of_node_put() for it in error path or when it is not used anymore. (2) The 'node' is escaped out from for_each_available_child_of_node() as the 'goto', we should call of_node_put() for it in goto target.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2022-50703 is a Linux kernel issue in the Qualcomm SMSM driver. The published record describes reference-count leaks during device probing. Business impact is unclear because no CVSS score, CWE, exploit evidence, or real-world impact is provided in the source bundle.

Executive priority

Track and patch through normal kernel update governance unless your fleet includes exposed Qualcomm-based Linux systems. Escalate priority if a vendor advisory assigns higher severity or confirms reachable denial-of-service impact.

Technical view

The flaw is in qcom_smsm_probe(), where device-tree nodes escaped child iteration without matching of_node_put() calls on error or goto paths. The kernel stable references show fixes across maintained branches. The affected data lists Linux kernel versions from 4.5 through 6.1 as affected.

Likely exposure

Exposure is most likely on systems running affected Linux kernels with the Qualcomm SMSM kernel code present and relevant hardware or device-tree paths in use. The provided data does not identify specific distributions, devices, or products beyond Linux.

Exploitation context

The source bundle does not show active exploitation, public exploit availability, KEV listing, CVSS severity, or an attacker prerequisite model. Treat this as a kernel maintenance vulnerability until vendor advisories provide clearer operational impact.

Researcher notes

Evidence is limited to the CVE record and kernel stable references. The defect is a reference-count leak in probe error handling, but the bundle does not prove exploitability, privilege boundary impact, or practical attack paths.

Mitigation direction

  • Apply kernel or vendor updates that include the referenced stable fixes.
  • Check Linux distribution and device vendor advisories for packaged fixes.
  • Prioritize Qualcomm SoC environments running listed affected kernel versions.
  • Do not assume a workaround; none is named in the sources.

Validation and detection

  • Inventory Linux kernel versions across Qualcomm-based systems.
  • Check whether the qcom SMSM driver is present or enabled.
  • Confirm the running kernel includes the referenced stable fix commit.
  • Review vendor advisories for backported patches under different version names.
Prepared
Confidence
medium
Sources
11

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-2022-50703 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
10Source 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
LinuxLinuxc97c4090ff72297a878a37715bd301624b71c885, c97c4090ff72297a878a37715bd301624b71c885, c97c4090ff72297a878a37715bd301624b71c885, c97c4090ff72297a878a37715bd301624b71c885, c97c4090ff72297a878a37715bd301624b71c885, c97c4090ff72297a878a37715bd301624b71c885, c97c4090ff72297a878a37715bd301624b71c885, c97c4090ff72297a878a37715bd301624b71c885, c97c4090ff72297a878a37715bd301624b71c885unaffected
LinuxLinux4.5, 0, 4.9.331, 4.14.296, 4.19.262, 5.4.220, 5.10.150, 5.15.75, 5.19.17, 6.0.3, 6.1affected
Weakness

CWE details

No CWE listed

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