CVE-2026-31746
MEDIUM severity · CVSS 5.5 · CWE-401
5.5CVSS MEDIUM
Summary
In the Linux kernel, the following vulnerability has been resolved: s390/zcrypt: Fix memory leak with CCA cards used as accelerator Tests showed that there is a memory leak if CCA cards are used as accelerator for clear key RSA requests (ME and CRT). With the last rework for the memory allocation the AP messages are allocated by ap_init_apmsg() but for some reason on two places (ME and CRT) the older allocation was still in place. So the first allocation simple was never freed.
Impact & exploitability
Attack vectorLocal
Attack complexityLow
Privileges requiredLow
User interactionNone
Confidentiality impactNone
Integrity impactNone
Availability impactHigh
Exploit probability (EPSS)0%
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected products we track (1)
Recommendation
Apply the vendor fix in your normal patch cycle. Open any affected product above for its exact safe version.
Official patch: https://git.kernel.org/stable/c/586222c37d4027dbf60a604fbe820184fee7c1c9 ↗
Additional information
- NVD record
- https://git.kernel.org/stable/c/586222c37d4027dbf60a604fbe820184fee7c1c9Patch
- https://git.kernel.org/stable/c/ace37bfec3822033e59fff390f2ff99fc96ebe4fPatch
- https://git.kernel.org/stable/c/c8d46f17c2fc7d25c18e60c008928aecab26184dPatch
- https://git.kernel.org/stable/c/1650268579e1113b30402dbcca4dba6589a0fccf