Security readout for executives and security teams
Plain-English summary
CVE-2022-50729 is a Linux kernel ksmbd issue where a failed RPC open path can leak an allocated resource. The public record does not provide a CVSS score or evidence of active exploitation. Business urgency is highest for systems using ksmbd; otherwise exposure may be limited.
Executive priority
Treat as a targeted kernel maintenance item. Prioritize internet-facing or business-critical file-sharing systems using ksmbd, but avoid emergency escalation unless vendor advisories add severity, exploitability, or active exploitation evidence.
Technical view
The vulnerability is described as a resource leak in ksmbd_session_rpc_open(). If ksmbd_rpc_open() fails, ksmbd_rpc_id_free() must be called to undo ksmbd_ipc_id_alloc(). Stable kernel commits are referenced as fixes. Public metadata lists affected Linux kernel version entries including 5.15, 5.15.86, 6.0.16, 6.1.2, and 6.2.
Likely exposure
Likely exposure is Linux systems running affected kernels with ksmbd functionality present or enabled. The source data does not define network reachability, required privileges, or exact distribution package impact.
Exploitation context
No cited source states active exploitation, public exploit availability, or CISA KEV listing. Impact details are limited to a resource leak on an error path, so operational risk should be assessed against ksmbd use and kernel version.
Researcher notes
Evidence is sparse: no CVSS, CWE, exploit conditions, or detailed impact are provided. Analysis should focus on the referenced stable commits and whether affected deployments exercise ksmbd_session_rpc_open() failure paths.
Mitigation direction
- Identify Linux systems using ksmbd or kernel SMB server functionality.
- Check distribution advisories for CVE-2022-50729 kernel updates.
- Update to a vendor kernel containing the referenced stable fixes.
- If ksmbd is unnecessary, consider disabling it per vendor guidance.
Validation and detection
- Inventory running kernel versions on Linux hosts.
- Confirm whether ksmbd is enabled or loaded.
- Compare installed kernel builds against vendor fixed versions.
- Review kernel changelogs for the referenced stable commit IDs.
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-2022-50729 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/31c1b5d3000cdff70b98d5af045271e09079bec1CVE reference
- https://git.kernel.org/stable/c/9cb49b95c05df09b369d1ec1f378b5c92109433cCVE reference
- https://git.kernel.org/stable/c/f9ed133381eba883c5e0059063d5b3ca7cac6d41CVE reference
- https://git.kernel.org/stable/c/bc044414fa0326a4e5c3c509c00b1fcaf621b5f4CVE 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.