Security readout for executives and security teams
Plain-English summary
This Linux kernel issue affects the VC4 HDMI driver path. When the driver is unbound, a codec device registered during bind was not removed, causing device leakage. The public sources do not provide CVSS, confirmed impact, or exploitation evidence.
Executive priority
Treat this as a targeted kernel maintenance issue, not an emergency, unless the organization relies heavily on affected VC4-based Linux devices. Schedule remediation through normal kernel update processes.
Technical view
CVE-2022-48852 is a Linux kernel drm/vc4 HDMI cleanup bug. The fix unregisters the HDMI codec device during unbind to avoid leaving a stale device. The source bundle identifies affected Linux kernel versions around 5.15 through 5.17 and references stable kernel commits.
Likely exposure
Exposure is most likely on Linux systems running affected kernels with the vc4 HDMI driver, commonly relevant to Broadcom VC4 graphics platforms. General servers without this driver path are less likely exposed, based on the provided evidence.
Exploitation context
No cited source reports active exploitation, and the CVE is not listed as KEV. The bundle describes a resource or device leakage condition, not a public exploit chain or remote attack path.
Researcher notes
Evidence is limited to the kernel fix description and affected version metadata. The issue is a missing unregister call on driver unbind. No CVSS, CWE, exploitability details, or named operational mitigations are provided.
Mitigation direction
- Check Linux vendor advisories for patched kernel packages.
- Update to a kernel including the referenced stable fixes or vendor backports.
- Prioritize systems using the drm/vc4 HDMI driver.
- Track distribution-specific status before assuming upstream version numbers apply.
Validation and detection
- Inventory Linux kernel versions across affected device classes.
- Identify systems using VC4 graphics or HDMI driver support.
- Confirm whether vendor kernels include the referenced stable commits.
- Review device lifecycle tests covering bind and unbind behavior.
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-2022-48852 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.
SSVC decision data
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://git.kernel.org/stable/c/ee22082c3e2f230028afa0e22aa8773b1de3c919CVE reference, Linux
- https://git.kernel.org/stable/c/1ed68d776246f167aee9cd79f63f089c40a5e2a3CVE reference, Linux
- https://git.kernel.org/stable/c/e40945ab7c7f966d0c37b7bd7b0596497dfe228dCVE reference, Linux
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.