# RLSA-2026:13578: kernel-rt security update

RLSA-2026:13578, released May 6, 2026, fixes 6 CVEs in kernel-rt (version 0:4.18.0-553.123.1.rt7.464.el8_10). One of them is being exploited (CVE-2026-31431); 1 on CISA KEV. Patch Radar priority: Patch now.

- Web page: https://patchblox.com/security/fix/linux/rlsa-2026-13578
- Platform: Linux
- Released: May 6, 2026
- Priority: Patch now (Closes CVE-2026-31431, exploited (CISA KEV))
- CVEs: 6, exploited: 1, on CISA KEV: 1
- Vendor advisory: https://errata.rockylinux.org/RLSA-2026:13578

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [kernel-rt](https://patchblox.com/security/data/product/linux/kernel-rt.md) | rocky 8 | 0:4.18.0-553.123.1.rt7.464.el8_10 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-31431](https://patchblox.com/security/data/cve/CVE-2026-31431.md) | Patch now | crypto: algif_aead - Revert to operating out-of-place | 8.1 | 0.9811 | CISA KEV |
| [CVE-2026-31402](https://patchblox.com/security/data/cve/CVE-2026-31402.md) | High | kernel-64kb: nfsd: fix heap overflow in NFSv4.0 LOCK replay cache (bsc#1261638). | 9.8 | 0.0122 |  |
| [CVE-2024-41073](https://patchblox.com/security/data/cve/CVE-2024-41073.md) | High | dtb-aarch64: Security update for the Linux Kernel | 8.1 | 0.0067 |  |
| [CVE-2025-40252](https://patchblox.com/security/data/cve/CVE-2025-40252.md) | High | net: qlogic/qede: fix potential out-of-bounds read in qede_tpa_cont() and qede_tpa_end() | 9.8 | 0.0065 |  |
| [CVE-2026-23401](https://patchblox.com/security/data/cve/CVE-2026-23401.md) | High | KVM: x86/mmu: Drop/zap existing present SPTE even when creating an MMIO SPTE | 8.8 | 0.0019 |  |
| [CVE-2025-68724](https://patchblox.com/security/data/cve/CVE-2025-68724.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved:  crypto: asymmetric_keys - prevent overflow in as... | 8.1 | 0.0014 |  |

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Data as of 2026-11-11T07:45:43Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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