Security readout for executives and security teams
Plain-English summary
CVE-2022-50748 is a Linux kernel issue where a failure during POSIX message queue filesystem initialization can leave allocated memory unreleased. The public record does not provide CVSS, attack vector, or exploitation evidence. Business urgency is mainly availability-focused and depends on whether your Linux kernel versions include the affected code path.
Executive priority
Treat this as a routine-to-moderate Linux kernel maintenance item unless your vendor rates it higher. There is no provided evidence of active exploitation. Ensure kernel update processes capture it, especially for shared platforms where availability issues have greater operational impact.
Technical view
The resolved bug is a memory leak in init_mqueue_fs(). If initialization fails after setup_mq_sysctls, retire_mq_sysctls was not called. The Linux stable references contain fixes. The CVE record lists Linux kernel affected version markers including 5.19, 5.19.17, 6.0.3, and 6.1, but validation should use vendor kernel advisories and commit backports.
Likely exposure
Exposure is limited to Linux systems running kernels with the affected mqueue initialization code and without the referenced fix or vendor backport. Distribution kernels may have backported fixes, so package version alone may not match upstream version numbers.
Exploitation context
No cited source says this is actively exploited, and it is not listed as KEV in the provided bundle. The public description indicates a memory leak on an initialization failure path, suggesting availability risk rather than direct data theft. Triggerability is not fully described in the sources.
Researcher notes
The record is sparse: no CVSS, CWE, detailed attack vector, or exploit status is provided. The key technical anchor is the missing retire_mq_sysctls call when init_mqueue_fs fails after setup_mq_sysctls. Use the upstream stable commits and downstream advisories to determine exact affected and fixed builds.
Mitigation direction
- Check your Linux distributor’s advisory for CVE-2022-50748.
- Update to a vendor-supported kernel containing the referenced stable fixes.
- If using custom kernels, review whether the stable commits are applied.
- Prioritize internet-facing multi-tenant or container-heavy Linux hosts after vendor confirmation.
Validation and detection
- Inventory running kernel versions across Linux assets.
- Compare each kernel against vendor guidance for CVE-2022-50748.
- Confirm whether the referenced stable commits are present or backported.
- Review kernel changelogs for the mqueue init_mqueue_fs memory leak fix.
- Document systems where vendor status remains unclear.
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-2022-50748 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
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.