CVE-2025-40021

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.

EPSS

0.2% chance of exploitation in the next 30 days; higher than 10% of CVEs (scores of 2026-10-25)

Published

2025-10-24

Modified

2026-10-19

Record from

the NVD, synced 2026-10-21

References

• https://git.kernel.org/stable/c/07b1f63b5f86765793fab44d3d4c2be681cddafb
• https://git.kernel.org/stable/c/0d41604d2d53c1abe27fefb54b37a8f6642a4d74
• https://git.kernel.org/stable/c/3887f3814c0e770e6b73567fe0f83a2c01a6470c
• https://git.kernel.org/stable/c/456c32e3c4316654f95f9d49c12cbecfb77d5660
• https://git.kernel.org/stable/c/573b1e39edfcb7b4eecde0f1664455a1f4462eee

Check your stackJSON