CVE-2026-64590: dma-buf/udmabuf: skip redundant cpu sync to fix cacheline EEXIST warning

Overview

Severity

High (CVSS 7.1)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Aug

Released

2026-08-07

Last Updated

2026-08-09

EPSS Score

0.17% (percentile: 6.1%)

Affected Products (1)

Other

• 21626-17084

Revision History

• 2026-08-07: Information published.
• 2026-08-09: Information published.