CVE-2026-97589 Linux Kernel s390/crypto - Logic Error

Linux kernel s390/crypto contains a logic error caused by incorrect return codes in asynchronous callbacks, letting the crypto engine trigger double completions, exploit requires specific crypto operations.

CVSS base score 7.0 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.14% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Logic Error
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
Published
25 September 2026
Updated
15 October 2026

Vendor fix

Update to the latest Linux kernel version containing the fix for s390/crypto asynchronous callback return codes.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

← All CVEs