CVE-2025-40215: xfrm: delete x->tunnel as we delete x

Overview

Severity

Medium (CVSS 5.5)

CVSS Vector

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

Exploit Status

Not Exploited

Patch Tuesday

2025-Dec

Released

2025-12-05

Last Updated

2026-02-21

EPSS Score

0.07% (percentile: 21.0%)

Affected Products (4)

Open Source Software

• azl3 kernel 6.6.112.1-2 on Azure Linux 3.0
• azl3 kernel 6.6.117.1-1 on Azure Linux 3.0

Other

• 20823-17084
• 20788-17084

Revision History

• 2025-12-05: Information published.
• 2025-12-05: Information published.
• 2025-12-07: Information published.
• 2026-01-08: Information published.
• 2026-01-20: Information published.
• 2026-02-21: Information published.