CVE-2026-31746
Description
A flaw was found in the Linux kernel's s390/zcrypt component. When Common Cryptographic Architecture (CCA) cards are used as accelerators for clear key RSA requests, a memory leak occurs due to an unreleased memory allocation. Over time, this memory leak can lead to a denial of service (DoS) condition, impacting system stability and availability.
Understanding the Weakness (CWE)
Availability
Technical Impact: DoS: Resource Consumption (Other); DoS: Resource Consumption (Memory); DoS: Resource Consumption (CPU)
An attacker that can influence the allocation of resources that are not properly released could deplete the available resource pool and prevent all other processes from accessing the same type of resource. Frequently-affected resources include memory, CPU, disk space, power or battery, etc.
Frequently Asked Questions
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