Security readout for executives and security teams
Plain-English summary
CVE-2022-50810 is a Linux kernel RapidIO driver bug where an error path fails to release a device reference. The documented issue is a reference-count leak, not data theft or remote compromise. Business urgency is generally low unless you operate affected kernels with RapidIO support enabled or rely on specialized systems using this subsystem.
Executive priority
Handle through normal kernel maintenance unless RapidIO-enabled systems are business-critical. There is no sourced evidence of active exploitation or high-impact compromise, but kernel hygiene remains important for reliability and cumulative risk reduction.
Technical view
In mport_cdev_open, if kfifo_alloc fails, chdev->dev keeps an incremented reference count. The kernel fix adds put_device(&chdev->dev) on that failure path. The CVE record lists multiple affected Linux kernel versions and stable-tree fix commits. No CVSS, CWE, or concrete impact beyond refcount leak is provided.
Likely exposure
Exposure appears limited to Linux systems running affected kernel versions with the RapidIO mport character-device code present and reachable. Organizations without RapidIO hardware, drivers, or enabled kernel support may have little practical exposure, but should validate against their kernel configuration and vendor packages.
Exploitation context
The provided sources do not report active exploitation, public weaponization, or inclusion in CISA KEV. The triggering condition involves an allocation failure path in kernel code, so exploitability and security impact are not established from the available record.
Researcher notes
The record is narrow: missing put_device on kfifo_alloc failure in rapidio devices. Severity metadata is absent, and impact is described only as avoiding a refcount leak. Further assessment should focus on reachability of mport_cdev_open, required privileges, allocation-failure controllability, and distribution backport status.
Mitigation direction
- Update affected Linux kernels to vendor releases containing the referenced stable fixes.
- Check distribution security advisories for CVE-2022-50810 package status.
- Prioritize specialized systems using RapidIO or custom kernels.
- If no vendor fix is available, follow vendor guidance and reduce RapidIO exposure where feasible.
Validation and detection
- Inventory Linux kernel versions across affected fleets.
- Verify whether RapidIO and mport character-device support are enabled or used.
- Confirm installed kernel includes a listed stable fix commit or vendor backport.
- Review vendor changelogs for CVE-2022-50810 or the referenced commit IDs.
Public sources used
- CVE Program
- CVE List V5
- Linux stable commit 6e4540e0970030e140998ce8847f5f0171b5afa1
- Linux stable commit ae57222402bea455e60cc51d2f52ce73b63b7af8
- Linux stable commit dfee9fe93dd34cd9d49520718f6ec2072de25e48
- Linux stable commit bb7397f6312d2cbf05e415676ed5b1655cb82a34
- Linux stable commit 53915ecc43c5139d6cdd1caa4fdc9290b9597008
- Linux stable commit a0d93aac54ce07a7cc71e90645d0cdabbda50450
- Linux stable commit 162433a96079bfa5ec748c486b4570f138d04fb5
- Linux stable commit b596242585984b5f3085aa8f7a82c65640b384b6
- Linux stable commit d5b6e6eba3af11cb2a2791fa36a2524990fcde1a
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-2022-50810 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/6e4540e0970030e140998ce8847f5f0171b5afa1CVE reference
- https://git.kernel.org/stable/c/ae57222402bea455e60cc51d2f52ce73b63b7af8CVE reference
- https://git.kernel.org/stable/c/dfee9fe93dd34cd9d49520718f6ec2072de25e48CVE reference
- https://git.kernel.org/stable/c/bb7397f6312d2cbf05e415676ed5b1655cb82a34CVE reference
- https://git.kernel.org/stable/c/53915ecc43c5139d6cdd1caa4fdc9290b9597008CVE reference
- https://git.kernel.org/stable/c/a0d93aac54ce07a7cc71e90645d0cdabbda50450CVE reference
- https://git.kernel.org/stable/c/162433a96079bfa5ec748c486b4570f138d04fb5CVE reference
- https://git.kernel.org/stable/c/b596242585984b5f3085aa8f7a82c65640b384b6CVE reference
- https://git.kernel.org/stable/c/d5b6e6eba3af11cb2a2791fa36a2524990fcde1aCVE 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.