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Linux CVE-2026-99058

| EUVDEUVD-2026-108724
2026-10-23 Linux GHSA-vhm2-x82m-jxjm
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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:

workqueue: Fix NULL current_pwq deref in chained work check

current_wq_worker() only tells us that %current is a kworker. It does not guarantee that the worker is currently executing a work item, as worker->current_pwq is populated only while process_one_work() is running the work function.

is_chained_work() can be reached while queueing on a draining or destroying workqueue. If a kworker outside work-item execution reaches that path, current_wq_worker() returns a worker but worker->current_pwq is NULL, and the chained-work test can fault before it emits the intended warning.

Guard the chained-work test with worker->current_pwq. A kworker without current_pwq is not executing work on the target workqueue, so the helper should return false and let the draining/destroying warning fire.

Affected VersionsENISA

Linux patch: 0
Linux patch: 6.18.57
Linux 3.9
Linux patch: 6.6.160
Linux 8d03ecfe471802d6afe97da97722b6924533aa82 <1a2668682e998039a027796b236319b380078a6a
Linux patch: 7.3
Linux 8d03ecfe471802d6afe97da97722b6924533aa82 <b12a25fb2b9d5dac80e419d695450cc17a51fdfd
Linux patch: 6.12.113
Linux 8d03ecfe471802d6afe97da97722b6924533aa82 <980db94e3eeefdd8a1c46f86412c33a7f7806f51
Linux 8d03ecfe471802d6afe97da97722b6924533aa82 <729d576df89c7e4341e58c452f8890620a610ac2
Linux 8d03ecfe471802d6afe97da97722b6924533aa82 <3dc61af2998cfc7312d6e59bbdcd5eed074483f2
Linux patch: 7.2.11

Affected Packages

euvd linux no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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Lifecycle Timeline

2
Patch available
Oct 23, 2026 - 13:17 EUVD
CVE Published
Oct 23, 2026 - 12:22 cve.org
UNKNOWN (no severity yet)

Threat Intelligence Overview

EPSS Score
0.2%
Top 88% exploitable
Data Quality
3 sources
Confidence: Low

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

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