Is there a patch available for CVE-2026-98656?

Yes, a patch is available for CVE-2026-98656. Update the affected software to the latest version immediately.

Linux CVE-2026-98656

EUVD-2026-103910

2026-10-18 Linux

GHSA-6556-hh6q-qw3c

Information Disclosure Linux

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Monitor Track and reassess. Why: No CVSS yet + weak signal (CWE or non-zero EPSS).

Patch available 0.2% exploitation probability (EPSS)

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AnalysisCVE.org

In the Linux kernel, the following vulnerability has been resolved:

iio: trigger: cancel reenable_work before freeing trigger

iio_trigger_notify_done_atomic() defers ->reenable() into trig->reenable_work on the system workqueue, and the worker dereferences the owning trigger through container_of(). Nothing cancels this work before iio_trig_release() frees the trigger, so a worker armed by the last in-flight IRQ can outlive the free and touch freed memory.

Cancel it at the top of iio_trig_release(), which every free path reaches through the device core's final put_device().

Found by an in-house static analysis tool.

Affected VersionsENISA

Linux patch: 7.3-rc6

Linux patch: 6.18.56

Linux a18aeac73c0f692ba40964f5f56e182312ae843b

Linux patch: 7.2.10

Linux 5.15.17 <5.16

Linux 9020ef659885f2622cfb386cc229b6d618362895 <2a57b9246cecd5dd797a42eb310d6c8816f26d9e

Linux 5.16.3 <5.17

Linux 9020ef659885f2622cfb386cc229b6d618362895 <e64703280ce7a23a43c27efebeb7da457c88bf5c

Linux 9020ef659885f2622cfb386cc229b6d618362895 <cf513df1a2c75566cdc802d9da47f62e8d6cfd18

Linux 2c5c948451d57596640b20887b06b523d376eb24

Linux patch: 0

Linux 5.17

Linux patch: 6.12.113

Linux 9020ef659885f2622cfb386cc229b6d618362895 <882d0011c59ff8ac15188ec9ce071399ecfa10ad

Affected Packages

euvd linux fix: 5.16, 5.17

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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Exploit and PoC references, threat intelligence from 22 sources

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Lifecycle Timeline

Patch available

Oct 18, 2026 - 17:19 EUVD

CVE Published

Oct 18, 2026 - 15:44 cve.org

UNKNOWN (no severity yet)

Threat Intelligence Overview

EPSS Score

0.2%

Top 94% exploitable

Data Quality

3 sources

Confidence: Low

EUVD

CVE.org

EPSS MSRC

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity Not scored yet

CISA KEV No

Public POC No

EPSS 0.2%

Patch available Yes

Active threat No

Deciding rule

No CVSS yet + weak signal (CWE or non-zero EPSS)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.