Is there a patch available for CVE-2026-98388?

Yes, a patch is available for CVE-2026-98388. Update the affected software to the latest version immediately.

Linux CVE-2026-98388

EUVD-2026-101037

2026-10-14 Linux

GHSA-chvx-fr8p-v654

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:

exec: do_close_on_exec() before taking exec_update_lock

do_close_on_exec() currently happens while holding the exec_update_lock, which is used in a lot of places that access process state to synchronize access checks. I recently added another such use of exec_update_lock, causing a regression.

do_close_on_exec() can block waiting for a reply from a filesystem. That means a hung filesystem can block codepaths that use exec_update_lock; and it also means that a FUSE filesystem which attempts to inspect the calling process can deadlock.

To avoid such problems, move do_close_on_exec() before the exec_update_lock is taken, but after the FD table has been copied if necessary.

I have looked through all the calls between the old and new position of the do_close_on_exec() call; there seems to be no file descriptor table access in between.

Affected VersionsENISA

Linux patch: 7.3-rc3

Linux f9b4b03ccc9c69bf7f7298d4559906ebea7143b3 <19ddef61ee0a49782a60f8f497e50597ad5de2da

Linux 5.15.212 <5.15.222

Linux patch: 0

Linux 5.10.261 <5.10.271

Linux 7456ae990a9738962b33146916fabca62ae3d4e0 <3feb4020bfb7ccf0d347f27051639d25e19cd65d

Linux 6.18.40 <6.18.53

Linux patch: 6.12.111

Linux ae1e630bcaac739f625822078edbaea98366930d <955973fff4a36d39a848b00cac1706863f568fe1

Linux patch: 6.18.53

Linux d54f14655fd7d7b293698a8b6918563c4c0465e7 <550feab5b01000ab314868b62211fb3ddfd600e8

Linux 7.2

Linux patch: 6.6.158

Linux 6.12.97 <6.12.111

Linux 6650527444dadc63d84aa939d14ecba4fadb2f69 <63be3d8511bdafa095cd14a393cbf3c58dbbb928

Linux 6650527444dadc63d84aa939d14ecba4fadb2f69 <e780259b54e618ceb4763fbc21314acf3565e813

Linux 7.1.4 <7.2

Linux 6.1.178 <6.1.189

Linux patch: 6.1.189

Linux 6.6.145 <6.6.158

Linux patch: 5.15.222

Linux patch: 5.10.271

Linux bb43679356f1f2a4c6b1c88aec4f021e5b5c74e9 <5aacc19ba2b1faf84c4a2f2cf9a1784e03d1ff38

Linux c1cfd63326f5d09999134e9052c353faf738286e

Linux 4bfe8c481846cee52473a2f7d7b30ee8e6749fc4 <0d86cd6b709c39216e6ee5ea8f0fc4242bbb2b53

Linux patch: 7.2.7

Affected Packages

euvd linux fix: 5.10.271, 5.15.222, 6.1.189, 6.6.158, 6.12.111, 6.18.53, 7.2

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 14, 2026 - 15:03 EUVD

CVE Published

Oct 14, 2026 - 13:25 cve.org

UNKNOWN (no severity yet)

Threat Intelligence Overview

EPSS Score

0.2%

Top 88% exploitable

Data Quality

3 sources

Confidence: Low

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.