Is there a patch available for CVE-2026-74308?

Yes, a patch is available for CVE-2026-74308. Update the affected software to the latest version immediately.

Linux CVE-2026-74308

EUVD-2026-59455

2026-08-15 Linux

GHSA-grvr-g5pp-pc9x

Information Disclosure Linux

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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:

ext4: fix kernel BUG in ext4_write_inline_data_end

When the data=journal mount option is used, the ext4_journalled_write_end() function incorrectly calls ext4_write_inline_data_end() without checking if the EXT4_STATE_MAY_INLINE_DATA flag is still set on the inode.

If a previous attempt to convert the inline data to an extent failed (e.g. due to ENOSPC), the EXT4_STATE_MAY_INLINE_DATA flag is cleared, but the EXT4_INODE_INLINE_DATA flag remains set. In this scenario, the next call to ext4_write_begin() will not prepare the inline data xattr for writing, but ext4_journalled_write_end() will incorrectly attempt to write to it, triggering a BUG_ON(pos + len > EXT4_I(inode)->i_inline_size) in ext4_write_inline_data() since i_inline_size was not expanded.

Fix this by ensuring that ext4_journalled_write_end() only calls ext4_write_inline_data_end() if the EXT4_STATE_MAY_INLINE_DATA flag is set, mirroring the behavior of ext4_write_end() and ext4_da_write_end().

Affected VersionsENISA

Linux 3fdcfb668fd78ec92d9bc2daddf1d41e2a8a30bb <9808ae9fae996afa942bd963a39c9b1cdeebd0bd

Linux patch: 6.12.97

Linux patch: 7.2-rc1

Linux 3fdcfb668fd78ec92d9bc2daddf1d41e2a8a30bb <f00f5c0dd55319bc33b76f72c853bda0e0a32eda

Linux patch: 7.1.5

Linux 3.8

Linux 3fdcfb668fd78ec92d9bc2daddf1d41e2a8a30bb <ad09aa45965d3fafaf9963bc78109b73c0f9ac8d

Linux patch: 6.6.145

Linux 3fdcfb668fd78ec92d9bc2daddf1d41e2a8a30bb <260830a9a706f5d335398236fc788ce32f220de1

Linux patch: 6.18.40

Linux patch: 0

Linux 3fdcfb668fd78ec92d9bc2daddf1d41e2a8a30bb <0ae42b51607240990614e0843f0d3529aaff62cc

Affected Packages

euvd linux no fix

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

Aug 15, 2026 - 07:20 EUVD

CVE Published

Aug 15, 2026 - 05:58 cve.org

UNKNOWN (no severity yet)

Threat Intelligence Overview

EPSS Score

0.2%

Top 94% 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.