Security readout for executives and security teams
Plain-English summary
CVE-2022-50813 is a Linux kernel issue in the MCB driver where a failed probe path can leak a device reference. Public data does not provide a CVSS score, confirmed impact severity, or exploitation reports. Treat it as a kernel maintenance item unless your environment depends on affected MCB driver functionality.
Executive priority
Low-to-monitor unless MCB-related kernel functionality is important in your environment. There is no public severity score or exploitation evidence in the supplied sources. Include this in routine Linux kernel patch cycles and watch vendor advisories for clarification.
Technical view
The Linux kernel fix addresses a resource leak in mcb_probe(): when the probe hook fails, the code did not release the device. The CVE record notes the change was compile-tested only. Stable kernel commit references are available across multiple branches, but the public record does not describe privilege escalation, remote reachability, or denial-of-service impact.
Likely exposure
Exposure appears limited to systems running affected Linux kernel versions where the MCB driver code path is present and exercised. The source bundle lists Linux kernel versions as affected and provides stable commit references. It does not identify distributions, configurations, or externally reachable attack surfaces.
Exploitation context
No active exploitation is indicated in the provided sources, and the CVE is not marked as KEV. The available description points to a resource leak during driver probe failure, not a documented exploit path. Practical exploitability is unclear from public data.
Researcher notes
The record is sparse: no CWE, CVSS, or exploitability analysis is supplied. The phrase “Compiled test only” suggests limited validation of the patch in the referenced description. Review the stable commits and downstream distro backports before making risk claims.
Mitigation direction
- Check your Linux vendor or distribution advisory for fixed kernel packages.
- Prioritize kernels that include the referenced stable MCB driver fix.
- Apply normal kernel update testing before production deployment.
- If updates are unavailable, monitor vendor guidance for supported mitigations.
Validation and detection
- Inventory systems running Linux kernels in the affected version set.
- Confirm whether kernel packages include one of the referenced stable commits.
- Check distribution changelogs for CVE-2022-50813 or the MCB resource leak fix.
- Validate kernel update deployment through standard endpoint or server inventory tooling.
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-2022-50813 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/531ac7b911a962b3b29565dad6ea6b5c3fad3317CVE reference
- https://git.kernel.org/stable/c/6f3467aa5712e6b5550e75a16454b3f17aa1f380CVE reference
- https://git.kernel.org/stable/c/e420ca85bf42a684ea729c505c07de6709500ed2CVE reference
- https://git.kernel.org/stable/c/68e54d9ee8222d7805a0b9d3e1c37b8cf3be536aCVE reference
- https://git.kernel.org/stable/c/0d1c2c8db28919c4351000d7c1692f1767bdc4f7CVE reference
- https://git.kernel.org/stable/c/f3686e5e8de0a03c8e70e3ee0ce3078fed612909CVE reference
- https://git.kernel.org/stable/c/0a23dda78946f604ff752fe223c3c1f4fa6dd7b4CVE reference
- https://git.kernel.org/stable/c/0468a585710bbb807a1b9c31df54bcf564d28b2bCVE reference
- https://git.kernel.org/stable/c/d7237462561fcd224fa687c56ccb68629f50fc0dCVE 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.