CVE record · CVE-2026-90002

ftrace: Take trace_array reference before accessing its ftrace_ops

CVSS 7.8 HighEPSS 0.0017 · 6th percentile

Published by the CVE Program (CNA: Linux) at 16 Sept 2026, 10:33 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
Vendor	Product	Versions
Linux	Linux	affected 591dffdade9f07692a7dd3ed16830ec24e901ece to before 0124b36a7eac1dd0402146fc6c1f732877b9cd9f git affected 591dffdade9f07692a7dd3ed16830ec24e901ece to before ffe16fe221e25cd1915602e6753c3d3285ed9a98 git affected 591dffdade9f07692a7dd3ed16830ec24e901ece to before 8f062a6bfeb4b4e18d469a673aec23a7b73c3e8a git affected 591dffdade9f07692a7dd3ed16830ec24e901ece to before 29266da8ee1d9be656b1f22460c49538e1930658 git affected 591dffdade9f07692a7dd3ed16830ec24e901ece to before 177cd8966325f0ffffa3c9381f9e0422019a3973 git affected 591dffdade9f07692a7dd3ed16830ec24e901ece to before 83fd7eca5ab0d3ac3f23bff889175d847e21af06 git affected 591dffdade9f07692a7dd3ed16830ec24e901ece to before cee8f286794df916553d8d445eac5c323ec5b0f8 git affected 591dffdade9f07692a7dd3ed16830ec24e901ece to before 9100191e5acb2e5ea2313f436667bb5fce129f47 git Other versions: unaffected
Linux	Linux	affected 3.15 unaffected before 3.15 semver unaffected 5.10.273 to 5.10., inclusive semver unaffected 5.15.224 to 5.15., inclusive semver unaffected 6.1.191 to 6.1., inclusive semver unaffected 6.6.160 to 6.6., inclusive semver unaffected 6.12.112 to 6.12., inclusive semver unaffected 6.18.52 to 6.18., inclusive semver unaffected 7.2.5 to 7.2., inclusive semver unaffected 7.3 to , inclusive original_commit_for_fix Other versions: affected

Identifiers: CVE-2026-90002
CNA: Linux
Tags: Linux kernel
Published: 16 Sept 2026
Updated: 30 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Linux kernel versions from 3.15 up to the fixed releases listed in the source are affected. A race between opening the set_ftrace_filter or set_ftrace_notrace files and removing a trace instance can cause a use-after-free, which can crash the kernel. The source does not state what privileges an attacker needs to trigger the race. Upgrade to a fixed kernel version for your release branch; the source lists fixed versions 5.10.273, 5.15.224, 6.1.191, and 6.6.160 and later in those series. No workaround is given.

Written 12 Nov 2026.

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
7.8	High	3.1	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H	CNA (Linux)

CISA KEV Not listed.
EPSS 0.0017, the 6th percentile, on 13 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 16 Sept 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.