NVD / CVE Program· CNA Linux

CVE-2026-97932: tracing: Don't dereference trace_event_file in deferred trigger free

Noroxi assessment

Priority: Monitor (action score 0/100)

The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
Probability of exploitation in the next 30 days: 0.18% (FIRST EPSS).
Fixed version: Linux Linux 67fb91a7f7bb1d958cf9cc249c912bca9b2fc821, 7.2, bcfe2816e6ec46c3f4c58aa4264476665ddb3f69.
Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 67fb91a7f7bb1d958cf9cc249c912bca9b2fc821, 7.2, bcfe2816e6ec46c3f4c58aa4264476665ddb3f69 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

In the Linux kernel, the following vulnerability has been resolved: tracing: Don't dereference trace_event_file in deferred trigger free The enable_event trigger defers trace_event_put_ref() to the trigger free kthread, but the trace_event_file can already be freed when the instance is removed. Keep the trace_event_call directly in enable_trigger_data so the deferred free does not access the freed trace_event_file.

—No exploit Fix available

EUVD-2026-86786

Published: Sep 25, 2026
Updated: Oct 19, 2026
EPSS: 0.1% · 8th percentile
CWE: —

Report tools

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Action score

Monitor

Low priority for now.

CVSS: 0 / 40 · —
CISA KEV: 0 / 30 · Not listed
EPSS: 0 / 30 · 0.1%

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Noroxi analysis

What does it mean in your environment?

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Affected systems

Is your version affected?

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Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

Linux Linux
- 159fdc3e01dca5fdbc412fcd8b239895733a270d, 7.2affected
- e091351b38818ef620d27f44f4bfd625f13afbff and later · before 67fb91a7f7bb1d958cf9cc249c912bca9b2fc821affected · git
- e091351b38818ef620d27f44f4bfd625f13afbff and later · before bcfe2816e6ec46c3f4c58aa4264476665ddb3f69affected · git
- 7.1.6 and later · before 7.2affected · semver
- before 7.2not affected · semver
- 7.2.7 and later · up to and including 7.2.*not affected · semver
- 7.3 and laternot affected · original_commit_for_fix

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
Debian:14	linux	before 7.2.7-1	7.2.7-1

Same product

linux: all records

Other highest-scoring records for the same primary product.

CVE-2026-74705udp: fix potential use-after-free in tunnel segmentation
40Plan
CVE-2026-74612veth: fix skb length accounting after XDP frag adjustment
40Plan
CVE-2026-74475vxlan: use neigh_ha_snapshot() in route_shortcircuit()
40Plan

Published before and after this one in the same product

← EarlierCVE-2026-97930Sep 25, 2026 · ALSA: usbusx2y: fix in04_last array size mismatch with in04_buf
0Monitor
← EarlierCVE-2026-97931Sep 25, 2026 · ALSA: us122l: Prevent write upgrades for read mappings
28Monitor
Later →CVE-2026-97933Sep 25, 2026 · tracing: Take trace_array reference when opening a tracer options file
0Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / package	Fixed version	Source
Linux Linux	67fb91a7f7bb1d958cf9cc249c912bca9b2fc821	Vendor (CNA)
Linux Linux	7.2	Vendor (CNA)
Linux Linux	bcfe2816e6ec46c3f4c58aa4264476665ddb3f69	Vendor (CNA)
debian:linux	7.2.7-1 · Debian:14	Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

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Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).