CVE-2026-31746

MEDIUM EPSS 2.2%
Published May 1, 20262mo ago · Modified Jun 17, 20262w ago
5.5 CVSS 3.1
Medium
Find Similar
Published May 1, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
2.2% percentile
Exploit & Patch Status
No Known Exploit
Patch Available

Weaknesses 1

CWE-401

Affected Products 8

VendorProductVersionRange
linuxlinux_kernel*≥6.16  –  <6.18.22
linuxlinux_kernel*≥6.19  –  <6.19.12
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any
linuxlinux_kernel7.0any

References 3

  • git.kernel.org https://git.kernel.org/stable/c/586222c37d4027dbf60a604fbe820184fee7c1c9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ace37bfec3822033e59fff390f2ff99fc96ebe4f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c8d46f17c2fc7d25c18e60c008928aecab26184d
    Patch

Remediation

  • git.kernel.org https://git.kernel.org/stable/c/586222c37d4027dbf60a604fbe820184fee7c1c9
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/ace37bfec3822033e59fff390f2ff99fc96ebe4f
    Patch
  • git.kernel.org https://git.kernel.org/stable/c/c8d46f17c2fc7d25c18e60c008928aecab26184d
    Patch