# CVE-2026-31568: s390/mm: Add missing secure storage access fixups for donated memory

CVE-2026-31568 is fixed in 14 products on 1 platform, first by DEBIAN-CVE-2026-31568, released May 15, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-31568
- Priority: High
- CVSS: 7.1 (Moderate)
- EPSS: 0.0016
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Apr 24, 2026
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-31568

## Description

Security update for the Linux Kernel

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | kernel-64kb sles 15.7 | 6.4.0-150700.53.73.2 | [SUSE-SU-2026:3166-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3166-1.md) | Jul 21, 2026 |
| Linux | kernel-64kb sles 16.0 | 6.12.0-160000.34.1 | [SUSE-SU-2026:22087-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22087-1.md) | Jun 5, 2026 |
| Linux | kernel-azure sles 15.7 | 6.4.0-150700.53.73.2 | [SUSE-SU-2026:3166-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3166-1.md) | Jul 21, 2026 |
| Linux | kernel-azure sles 16.0 | 6.12.0-160000.34.1 | [SUSE-SU-2026:22087-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22087-1.md) | Jun 5, 2026 |
| Linux | kernel-default sles 15.7 | 6.4.0-150700.53.73.2 | [SUSE-SU-2026:3166-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3166-1.md) | Jul 21, 2026 |
| Linux | kernel-default sles 16.0 | 6.12.0-160000.34.1 | [SUSE-SU-2026:22087-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22087-1.md) | Jun 5, 2026 |
| Linux | kernel-default-base sles 15.7 | 6.4.0-150700.53.73.2.150700.17.41.4 | [SUSE-SU-2026:3166-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3166-1.md) | Jul 21, 2026 |
| Linux | kernel-default-base sles 16.0 | 6.12.0-160000.34.1.160000.2.15 | [SUSE-SU-2026:22087-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22087-1.md) | Jun 5, 2026 |
| Linux | kernel-docs sles 15.7 | 6.4.0-150700.53.73.1 | [SUSE-SU-2026:3166-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3166-1.md) | Jul 21, 2026 |
| Linux | kernel-docs sles 16.0 | 6.12.0-160000.34.1 | [SUSE-SU-2026:22087-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22087-1.md) | Jun 5, 2026 |
| Linux | kernel-kvmsmall sles 16.0 | 6.12.0-160000.34.1 | [SUSE-SU-2026:22087-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22087-1.md) | Jun 5, 2026 |
| Linux | kernel-livepatch-SLE15-SP7-RT_Update_18 sles 15.7 | 1-150700.1.5.1 | [SUSE-SU-2026:3130-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3130-1.md) | Jul 20, 2026 |
| Linux | kernel-livepatch-SLE15-SP7_Update_19 sles 15.7 | 1-150700.15.3.4 | [SUSE-SU-2026:3166-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3166-1.md) | Jul 21, 2026 |
| Linux | kernel-obs-build sles 15.7 | 6.4.0-150700.53.73.2 | [SUSE-SU-2026:3166-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3166-1.md) | Jul 21, 2026 |
| Linux | kernel-obs-qa sles 16.0 | 6.12.0-160000.34.1 | [SUSE-SU-2026:22087-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22087-1.md) | Jun 5, 2026 |
| Linux | kernel-source sles 15.7 | 6.4.0-150700.53.73.1 | [SUSE-SU-2026:3166-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3166-1.md) | Jul 21, 2026 |
| Linux | kernel-source sles 16.0 | 6.12.0-160000.34.1 | [SUSE-SU-2026:22087-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22087-1.md) | Jun 5, 2026 |
| Linux | kernel-syms sles 15.7 | 6.4.0-150700.53.73.1 | [SUSE-SU-2026:3166-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3166-1.md) | Jul 21, 2026 |
| Linux | kernel-syms sles 16.0 | 6.12.0-160000.34.1 | [SUSE-SU-2026:22087-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22087-1.md) | Jun 5, 2026 |
| Linux | kernel-zfcpdump sles 15.7 | 6.4.0-150700.53.73.2 | [SUSE-SU-2026:3166-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-3166-1.md) | Jul 21, 2026 |
| Linux | kernel-zfcpdump sles 16.0 | 6.12.0-160000.34.1 | [SUSE-SU-2026:22087-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-22087-1.md) | Jun 5, 2026 |
| Linux | linux Debian 14 | 6.19.11-1 | [DEBIAN-CVE-2026-31568](https://patchblox.com/security/data/fix/linux/debian-cve-2026-31568.md) | May 15, 2026 |

---

Data as of 2026-11-12T01:51:14Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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