Is there a patch available for CVE-2026-98907?

Yes, a patch is available for CVE-2026-98907. Update the affected software to the latest version immediately.

Linux CVE-2026-98907

EUVD-2026-108863

2026-10-23 Linux

GHSA-2r98-r7qj-j43v

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:

btrfs: protect sb_write_pointer() with invalidate lock

sb_write_pointer() reads the super block from the block device page cache using read_cache_page_gfp(). This has the same race with BLKBSZSET as the one fixed by commit 3f29d661e568 ("btrfs: sync read disk super and set block size").

Take the mapping invalidate lock around read_cache_page_gfp() to serialize the read against block size changes.

Affected VersionsENISA

Linux patch: 7.2

Linux 0 <5.15.222

Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <80cd97c5e90096d040a623851795eac92fbd0ff1

Linux patch: 6.18.53

Linux 0 <6.12.111

Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <123b9a545f4d0348e81f558a032bf2a93ee5722f

Linux patch: 6.6.158

Linux patch: 5.15.222

Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a58cab4535f085adc0f93d7efd7952ef437371da

Linux patch: 6.1.189

Linux patch: 6.12.111

Linux 0 <6.6.158

Linux 0 <6.1.189

Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <c9b38f2eab5a9bd74087390318d93ccdd8d2deff

Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <1a6c92aa7242a04e4349c0ea213dbf703a1c9891

Linux 0 <6.18.53

Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 <a0dc28359a8a26f970ccd250b126a2e0bd4118a5

Affected Packages

euvd linux fix: 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53

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 - 13:17 EUVD

CVE Published

Oct 23, 2026 - 11:54 cve.org

UNKNOWN (no severity yet)

Threat Intelligence Overview

EPSS Score

0.2%

Top 89% exploitable

Data Quality

4 sources

Confidence: Medium

EUVD

CVE.org

EPSS MSRC

VulDB

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.