Is there a patch available for EUVD-2026-108937?

Yes, a patch is available for EUVD-2026-108937. Update the affected software to the latest version immediately.

Linux EUVD-2026-108937

| CVE-2026-99086

2026-10-23 Linux

GHSA-ppgf-6cf3-2qjr

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Awaiting Data No severity or threat signals available yet. Label will update when CVSS score is published or threat intelligence arrives. 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:

dm-integrity: validate the superblock on resume

dm_integrity_resume() re-reads the superblock from the device so that it picks up the flags and the recalculate position. It performs no validation on the result, while the constructor validates the superblock it reads and sizes all the in-memory structures according to it. The user may modify the superblock on the underlying device while the dm-integrity device is suspended, so that the two no longer agree.

In particular, access_journal_data() shifts the journal entry index by ic->sb->log2_sectors_per_block, while ic->journal_section_sectors and the journal page list were computed with the value that was present at constructor time. Increasing log2_sectors_per_block makes the index run past the end of the journal, and dm-integrity then writes 512 bytes through lowmem_page_address(NULL).

Snapshot the validated superblock in the constructor and refuse to resume if any of the fields that describe the on-disk geometry changed.

Affected VersionsENISA

Linux c6138af1f5454c2631a837916fda958ea72c0d71

Linux patch: 0

Linux 824b9c27d7b600520b95f0cab95a47d1b08a9483

Linux 6.19.6 <6.20

Linux 118ba36e446c01e3cd34b3eedabf1d9436525e1d <e9ec5cbbaf4dd3a02ae3d81719f4fcb9b609aa8e

Linux patch: 7.3

Linux 6.6.128 <6.7

Linux 118ba36e446c01e3cd34b3eedabf1d9436525e1d <fc79aeb86a2c244c1f1894e2d8f2966fe2b60fa2

Linux 3ff70e2e31c419e2230d0c66cb2bfb3b1b414b7f

Linux 7.0

Linux 6.12.75 <6.13

Linux 38625191f32f77a9d5fc7cc15f4f9b78768bfb33 <454b67fcc28c18502e47dfb9f067b04c28628ada

Linux patch: 7.2.12

Linux 6.1.165 <6.2

Linux fb49f209995f729053c6ee728436f98d78a49b6f

Linux patch: 6.18.58

Linux 6.18.16 <6.18.58

Affected Packages

euvd linux fix: 6.2, 6.7, 6.13, 6.18.58, 6.20

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 23, 2026 - 14:02 EUVD

CVE Published

Oct 23, 2026 - 12:45 cve.org

UNKNOWN (no severity yet)

Threat Intelligence Overview

EPSS Score

0.2%

Top 90% exploitable

Data Quality

1 sources

Confidence: Low

EUVD

CVE.org

EPSS

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.