Always-Incorrect Control Flow Implementation in Linux kernel - CVE-2026-97589
Published: September 28, 2026
Vulnerability identifier: #VU152612
CSH Severity: Low
CVSS v4: 7.3 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-97589
CWE-ID: CWE-670
Exploitation vector: Local access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to compromise confidentiality, integrity, and availability.
The vulnerability exists due to incorrect callback return-value handling in s390 asynchronous crypto engine callbacks when completing asynchronous cryptographic requests. A local user can cause a request to be completed twice to compromise confidentiality, integrity, and availability.
Affected software
Linux kernel
How to mitigate CVE-2026-97589
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3