Riskcovery

CVE-2026-31746

s390/zcrypt: Fix memory leak with CCA cards used as accelerator

State
Published
Severity
Not scored
Published
May 1, 2026
Updated
Oct 21, 2026
Reserved
Mar 9, 2026

Read the record on cve.org

Description

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.

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

ProductVersions
LinuxLinux
  • 919b3885c293057061af32dfeb0e20bba4f7a378 to before 1650268579e1113b30402dbcca4dba6589a0fccfAffected
  • 57db62a130ce69e6f3a870cf1119d8f860391f97 to before 586222c37d4027dbf60a604fbe820184fee7c1c9Affected
  • 57db62a130ce69e6f3a870cf1119d8f860391f97 to before ace37bfec3822033e59fff390f2ff99fc96ebe4fAffected
  • 57db62a130ce69e6f3a870cf1119d8f860391f97 to before c8d46f17c2fc7d25c18e60c008928aecab26184dAffected
LinuxLinux
  • 6.16Affected
  • before 6.16Not affected
  • 6.18.22 through 6.18.*Not affected
  • 6.19.12 through 6.19.*Not affected
  • 7.0 and laterNot affected

References

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