CVE-2026-43109: x86: shadow stacks: proper error handling for mmap lock
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/E:U
- Exploit Status
- Not Exploited
- Patch Tuesday
- 2026-May
- Released
- 2026-05-07
- Last Updated
- 2026-05-22
- EPSS Score
- 0.11% (percentile: 1.7%)
Affected Products (3)
Open Source Software
- azl3 kernel 6.6.137.1-2 on Azure Linux 3.0
- azl3 kernel 6.6.138.1-1 on Azure Linux 3.0
- azl3 kernel 6.6.139.1-1 on Azure Linux 3.0
Revision History
- 2026-05-07: Information published.
- 2026-05-11: Information published.
- 2026-05-17: Information published.
- 2026-05-22: Information published.