Security readout for executives and security teams
Plain-English summary
CVE-2022-50834 is a Linux kernel NFC issue involving unreleased device references that can cause resource leaks. Public data does not provide a CVSS score, impact rating, or exploitation evidence. Organizations using Linux systems with NFC functionality should track vendor kernel updates, but current evidence does not support emergency treatment.
Executive priority
Treat as routine kernel maintenance unless your environment relies on NFC-enabled Linux endpoints. There is no sourced evidence of active exploitation or severe impact, but kernel resource leaks can affect reliability and should be remediated through normal patch cycles.
Technical view
The Linux kernel NFC subsystem called nfc_get_device(), which takes a device reference, without consistently calling nfc_put_device() when the reference was no longer needed. The upstream fix adds the missing release path and adjusts an error code style issue. Affected-version data is present, but incomplete and commit-oriented.
Likely exposure
Exposure is most relevant to Linux systems running affected kernel versions with NFC support enabled or compiled in. Servers without NFC hardware or NFC kernel functionality are likely less exposed, but the source data does not define exploit prerequisites.
Exploitation context
No active exploitation is reported in the provided sources, and the CVE is not listed as KEV. The public description indicates a resource leak, but does not state whether this is locally reachable, remotely reachable, or practically exploitable.
Researcher notes
The record lacks CVSS, CWE, and detailed attack conditions. The affected-version list appears broad and includes commit-style identifiers plus stable kernel versions. Analysis should focus on the referenced stable commits and downstream distro backports before making exposure claims.
Mitigation direction
- Check Linux distribution advisories for CVE-2022-50834 kernel updates.
- Update to a vendor-supported kernel containing the referenced upstream stable fixes.
- Prioritize systems where NFC support is enabled or required.
- If no vendor fix is available, follow vendor guidance rather than applying unreviewed patches.
Validation and detection
- Inventory Linux kernel versions across managed systems.
- Confirm whether NFC kernel support is present or enabled.
- Review vendor changelogs for CVE-2022-50834 or referenced stable commit IDs.
- Verify updated systems run a vendor kernel that includes the fix.
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-2022-50834 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/277f0d0a9084e7454e5532c823a7a876a7b00af7CVE reference
- https://git.kernel.org/stable/c/d1d912e7f82d7216ba4e266048ec1d1f5ea93839CVE reference
- https://git.kernel.org/stable/c/d8e410315ad393b23520b5db0706be853589c548CVE reference
- https://git.kernel.org/stable/c/e0f5c962c066e769c187f037fedc883f8abd4e82CVE reference
- https://git.kernel.org/stable/c/b63bc2db244c1b57e36f16ea5f2a1becda413f68CVE reference
- https://git.kernel.org/stable/c/a743128fca394a43425020a4f287d3168d94d04fCVE reference
- https://git.kernel.org/stable/c/b32f6bef248562bb5191ada527717ea50b319466CVE reference
- https://git.kernel.org/stable/c/df49908f3c52d211aea5e2a14a93bbe67a2cb3afCVE 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.