CVE-2026-52946: fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling

Overview

Severity

Medium (CVSS 5.9)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2026-Jun

Released

2026-06-27

Last Updated

2026-07-03

EPSS Score

0.47% (percentile: 38.0%)

Affected Products (2)

Other

• 21443-17084
• 21474-17084

Revision History

• 2026-06-27: Information published.
• 2026-06-28: Information published.
• 2026-07-03: Information published.