CVE-2026-64378: writeback: fix race between cgroup_writeback_umount() and inode_switch_wbs()

Overview

Severity

Medium (CVSS 4.7)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Jul

Released

2026-07-26

Last Updated

2026-08-07

EPSS Score

0.10% (percentile: 0.9%)

Affected Products (1)

Other

• 21580-17084

Revision History

• 2026-07-26: Information published.
• 2026-07-27: Information published.
• 2026-08-07: Information published.