CVE-2026-90014High· 7.8▾ Twilight

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…

▾ Twilight zone — High severity, or a signal on a lesser flaw

Depth score43/ 100 · Moderate

impact 42.9 · likelihood 0 · exploitation 0

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Proof of concept

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Published

Sep 16, 2026

Updated

Sep 16, 2026

CVSS

7.8

Vendor

Linux

Product

Linux

CWE

—

Depth score

43 · Moderate

EPSS

0.17% · p6

Platforms

—

Source

NVD

Vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS history

Exploit-prediction probability, daily snapshots since Sep 19.

0.2% → 0.2%

Timeline

Disclosure to exploitation, from the record and what we observed since indexing it.

5 events · 9 days

Sep 16, 2026Published
Disclosed via NVD
Sep 16, 2026CVSS changed
— → 7.8
Sep 16, 2026Severity changed
none → high
Sep 19, 2026EPSS first tracked
0.2%
Sep 25, 2026EPSS peak
0.2% → 0.2%

Linux #nvd #cve.org

Affected

Linux >= 729757b96a662d87e334fe8b837707800d8fd551 < 2ee3f7d43f79efaca0cd84a6798653d9d75ce60b
Linux >= 729757b96a662d87e334fe8b837707800d8fd551 < f4a771cc684c7354b6200147f7252c58d17408ff
Linux 7.0

Full technical detail▾

Overview

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.

Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.

References

Change history

Field changes observed since this record was first indexed.

Sep 16, 2026CVSS — → 7.8
Sep 16, 2026Severity none → high

Related vulnerabilities

Connected by shared product, vendor, weakness, or advisory.

#nvd#cve.org