CVE-2026-64593: btrfs: do not trim a device which is not writeable

Overview

Severity

Critical (CVSS 9.8)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Aug

Released

2026-08-07

Last Updated

2026-08-14

EPSS Score

0.17% (percentile: 6.1%)

Affected Products (1)

Other

• 21474-17084

Revision History

• 2026-08-07: Information published.
• 2026-08-14: Information published.
• 2026-08-14: Information published.
• 2026-08-14: Information published.