CVE-2023-26605

kernel: fs: use-after-free in inode_cgwb_move_to_attached()

Loading…

Severity

Moderate

Red Hat Product Security

7.8

CVSS 3.1

Review impact separately from score.

Published · February 26, 2023

Updated · November 21, 2025

Description

In the Linux kernel 6.0.8, there is a use-after-free in inode_cgwb_move_to_attached in fs/fs-writeback.c, related to __list_del_entry_valid.

Statement

Red Hat Enterprise Linux is not affected by this flaw as it does not include the affected code in writeback_single_inode, introduced upstream in version 6.1-rc1 with commit cbfecb9 ("fs: record I_DIRTY_TIME even if inode already has I_DIRTY_INODE").

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-416 · Use After Free