CVE-2025-40021
BaseFortify
Publication date: 2025-10-24
Last updated on: 2025-10-27
Assigner: kernel.org
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| linux | linux_kernel | * |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability in the Linux kernel involves the dynamic_events interface on tracefs, which is compatible with kprobe_events and uprobe_events. The issue was that it lacked a lockdown check, meaning it did not verify if the system was in lockdown mode before allowing certain operations. This missing check could allow unauthorized actions when lockdown is enabled. The vulnerability was resolved by adding the missing lockdown check to the dynevent interface.
How can this vulnerability impact me? :
If exploited, this vulnerability could allow unauthorized users or processes to perform tracing operations via the dynamic_events interface even when the system lockdown is enabled. This could potentially lead to information disclosure or unauthorized system behavior by bypassing security restrictions intended to protect the system during lockdown.