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CVE-2025-40021

tracing: dynevent: Add a missing lockdown check on dynevent

N/A
Published: October 24, 2025 at 12:24 PM UTC
Updated: October 19, 2026 at 09:10 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
N/A
Exploit prediction
EPSS 0.2%

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel· Linux
90%
17911ff38aa58d3c95c07589dbf5d3564c4cf3c55.4
Vendor states this is fixed in 07b1f63b5f86765793fab44d3d4c2be681cddafb (fixed)
Vendor states this is fixed in 0d41604d2d53c1abe27fefb54b37a8f6642a4d74 (fixed)
Vendor states this is fixed in 3887f3814c0e770e6b73567fe0f83a2c01a6470c (fixed)
Vendor states this is fixed in 456c32e3c4316654f95f9d49c12cbecfb77d5660 (fixed)
Vendor states this is fixed in 573b1e39edfcb7b4eecde0f1664455a1f4462eee (fixed)
Vendor states this is fixed in b47c4e06687a5a7b6c6ef4bd303fcfe4430b26bb (fixed)
Vendor states this is fixed in f3ac1f4eaba58e57943efa3e8b8d71fa7aab0abf (fixed)
Vendor states this is fixed in 5.10.245 (unaffected)
Vendor states this is fixed in 5.15.194 (unaffected)
Vendor states this is fixed in 5.4 (unaffected)
Vendor states this is fixed in 6.1.155 (unaffected)
Vendor states this is fixed in 6.12.50 (unaffected)
Vendor states this is fixed in 6.16.10 (unaffected)
Vendor states this is fixed in 6.17 (unaffected)
Vendor states this is fixed in 6.6.109 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (7)

Source: cverecord
https://git.kernel.org/stable/c/f3ac1f4eaba58e57943efa3e8b8d71fa7aab0abf
Source: cverecord
https://git.kernel.org/stable/c/0d41604d2d53c1abe27fefb54b37a8f6642a4d74
Source: cverecord
https://git.kernel.org/stable/c/07b1f63b5f86765793fab44d3d4c2be681cddafb
Source: cverecord
https://git.kernel.org/stable/c/3887f3814c0e770e6b73567fe0f83a2c01a6470c
Source: cverecord
https://git.kernel.org/stable/c/573b1e39edfcb7b4eecde0f1664455a1f4462eee
Source: cverecord
https://git.kernel.org/stable/c/b47c4e06687a5a7b6c6ef4bd303fcfe4430b26bb
Source: cverecord
https://git.kernel.org/stable/c/456c32e3c4316654f95f9d49c12cbecfb77d5660

Quick Info

StatusDEFERRED

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