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CVE-2026-45912

kernel: ext4: don't cache extent during splitting extent

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Severity

Moderate

Red Hat Product Security

7

CVSS 3.1

Review impact separately from score.

Published · May 27, 2026

Updated · June 28, 2026

Description

A flaw was found in the Linux kernel's ext4 filesystem. During certain file operations, specifically when splitting data extents, an issue with caching can lead to incorrect tracking of disk space. This can result in errors in space accounting, potentially impacting data integrity and the overall stability of the filesystem.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-372 · Incomplete Internal State Distinction