tracing: dynevent: Add a missing lockdown check on dynevent
Priority LOW 22Published · Updated
Key facts
- Attack vector
- —
- Privileges required
- —
- User interaction
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- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
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- Fix status
- Partial Red Hat: 2 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
In the Linux kernel, the following vulnerability has been resolved: tracing: dynevent: Add a missing lockdown check on dynevent Since dynamic_events interface on tracefs is compatible with kprobe_events and uprobe_events, it should also check the lockdown status and reject if it is set.
Why it matters now
EPSS 0.00206 10th percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.10.245, 5.15.194, 6.1.155 +4Red Hat: 2 without a fix
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.245, 5.15.194, 6.1.155, 6.6.109, 6.12.50, 6.16.10, 6.17
Vendor assessments
Red Hat
Red Hat rating: Low. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Not affected: 3 products
- Red Hat Enterprise Linux 6
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
Timeline
- 2026-10-02 Threatist record created from CVE-2025-40021
- 2026-10-03 Alias added: GHSA-hmw5-3qc9-5j9m
References
Other 7
- https://git.kernel.org/stable/c/f3ac1f4eaba58e57943efa3e8b8d71fa7aab0abf
- https://git.kernel.org/stable/c/0d41604d2d53c1abe27fefb54b37a8f6642a4d74
- https://git.kernel.org/stable/c/07b1f63b5f86765793fab44d3d4c2be681cddafb
- https://git.kernel.org/stable/c/3887f3814c0e770e6b73567fe0f83a2c01a6470c
- https://git.kernel.org/stable/c/573b1e39edfcb7b4eecde0f1664455a1f4462eee
- https://git.kernel.org/stable/c/b47c4e06687a5a7b6c6ef4bd303fcfe4430b26bb
- https://git.kernel.org/stable/c/456c32e3c4316654f95f9d49c12cbecfb77d5660
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- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
Sources
- CVE-2025-40021 · CVE Program
- CVE-2025-40021 · NVD
- FIRST EPSS
- GHSA-hmw5-3qc9-5j9m · GitHub Advisory Database · CC BY 4.0
- CVE-2025-40021 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences