CVE-2026-64356
kernel: xfs: fix memory leak in xfs_dqinode_metadir_create()
Severity
LowRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · July 25, 2026
Updated · October 29, 2026
Description
A flaw was found in the Linux kernel's XFS filesystem. This vulnerability occurs during the creation of XFS metadata directories, where a failure in the creation process or a subsequent commit can lead to a memory leak. This leak results in allocated update and transaction state not being properly released, and an inode reference being left behind. Over time, this can lead to resource exhaustion and potentially cause the system to become unresponsive, resulting in a Denial of Service (DoS).
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 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-772 · Missing Release of Resource after Effective Lifetime