Security readout for executives and security teams
Plain-English summary
CVE-2022-50658 is a Linux kernel memory leak in the Qualcomm CPU frequency driver error path. If an unexpected speedbin length is encountered, allocated memory was not freed. Available sources describe a narrow reliability issue, not data theft or remote takeover.
Executive priority
Handle through normal kernel maintenance unless you operate Qualcomm-based Linux fleets with strict uptime requirements. There is no sourced evidence of active exploitation or high-impact compromise, but affected embedded and mobile-style devices should receive vendor-supported kernel updates.
Technical view
The Linux kernel qcom cpufreq code failed to free the speedbin buffer when speedbin length validation failed. Stable kernel commits correct the error path to always free the buffer. The CVE record lists Linux kernel versions as affected but provides no CVSS, CWE, exploitability detail, or distribution-specific impact.
Likely exposure
Most relevant to Linux systems using Qualcomm platforms and the qcom cpufreq driver. Generic servers, desktops, and non-Qualcomm systems are less likely to be exposed, based on the component named in the fix.
Exploitation context
No active exploitation is indicated in the provided sources, and the CVE is not marked KEV. The issue appears to require reaching a driver error path involving incorrect speedbin length, suggesting limited practical exploitability from the available evidence.
Researcher notes
Evidence is limited to the CVE record and Linux stable commits. The public description identifies a memory leak on an error path, not a privilege boundary bypass. Affected-version data in the bundle is sparse and should be reconciled with upstream stable branches and downstream vendor advisories.
Mitigation direction
- Check vendor kernel advisories for CVE-2022-50658 applicability.
- Prioritize Qualcomm-based Linux devices using qcom cpufreq.
- Update to a kernel containing the referenced stable fixes.
- Use distribution-supported kernel packages where available.
- If no advisory exists, request guidance from the device or OS vendor.
Validation and detection
- Inventory Qualcomm-based Linux systems and kernel versions.
- Confirm whether the qcom cpufreq driver is present or enabled.
- Compare running kernels against vendor fixed releases.
- Review kernel changelogs for the referenced cpufreq qcom fix.
- Track exceptions where vendor fix status is unavailable.
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
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CVE-2022-50658 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
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
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/e55feb31df3fc78b880d6e9d4b5853f05c974833CVE reference
- https://git.kernel.org/stable/c/b5606e3ab1f7cc00d89903f4a11fe57747bb3a68CVE reference
- https://git.kernel.org/stable/c/b6ea267e0c6bdf5463358e2a2e5280cfa6cacc48CVE reference
- https://git.kernel.org/stable/c/9f42cf54403a42cb092636804d2628d8ecf71e75CVE reference
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.