CVE-2025-22008: regulator: check that dummy regulator has been probed before using it
In the Linux kernel, the following vulnerability has been resolved:
regulator: check that dummy regulator has been probed before using it
Due to asynchronous driver probing there is a chance that the dummy
regulator hasn't already been probed when first accessing it.
Security readout for executives and security teams
Plain-English summary
This is a Linux kernel flaw in regulator initialization. A built-in dummy regulator might be used before its driver has finished probing, creating unreliable behavior during device startup. The public sources do not state business impact, CVSS, or confirmed exploitation.
Executive priority
Treat this as a kernel maintenance item with uncertain severity. Prioritize patching where affected kernels run on production, embedded, or appliance systems, but do not escalate as actively exploited based on the provided evidence.
Technical view
CVE-2025-22008 affects the Linux kernel regulator subsystem. Because driver probing can be asynchronous, code may access the dummy regulator before it has been probed. Kernel stable commits resolve this by checking that the dummy regulator has been probed before use.
Likely exposure
Exposure is limited to systems running affected Linux kernel versions or downstream kernels carrying the vulnerable regulator code. The bundle names Linux 6.4 and later affected ranges, with Debian LTS advisories also referencing fixes.
Exploitation context
The source bundle does not identify active exploitation, public exploit availability, attacker prerequisites, or a clear impact class. It is not listed as CISA KEV in the provided data.
Researcher notes
Evidence is thin: no CVSS, CWE, exploit narrative, or impact statement is provided. Analysis should focus on affected kernel lineage, whether the stable commits are present, and vendor backport status.
Mitigation direction
Apply Linux kernel updates that include the referenced stable fixes.
For Debian LTS systems, apply the relevant Debian security updates.
Check your Linux vendor advisory for backported fixes.
Prioritize embedded or hardware-dependent Linux systems using regulator framework paths.
Validation and detection
Inventory running kernel versions across Linux hosts and appliances.
Compare deployed kernels against vendor fixed package versions.
Check whether downstream kernels include the referenced stable commits.
Review boot and driver initialization logs for regulator-related failures.
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Potential ATT&CK relevance
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CVE-2025-22008 mapping review
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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.
0CVSS vectors
3Timeline events
1ADP providers
7Source links
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.
Apr 8, 2025, 08:17 UTC (UTC+00:00)
CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.