CVE Database›CVE-2024-26704

CVE-2024-26704

kernel: ext4: fix double-free of blocks due to wrong extents moved_len

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Severity

Moderate

Red Hat Product Security

7.8

CVSS 3.1

Review impact separately from score.

Published · April 3, 2024

Updated · August 5, 2026

Description

A vulnerability was found in the Linux kernel. This issue occurs in the ext4 function, in ext4_move_extents(), where an error in updating the moved_len variable can lead to double-free of blocks and corrupt block accounting. This could lead to crashes or undefined behavior.

Statement

This vulnerability is rated as moderate because this issue could lead to ext4 file system crashes or undefined behavior on the system.

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 · 7.8
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE-415 · Double Free