# RHSA-2026:1661: Security update for 12 packages

RHSA-2026:1661, released February 2, 2026, fixes 10 CVEs across 12 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2026-1661
- Platform: Linux
- Released: Feb 2, 2026
- Priority: High (Closes CVE-2022-50865, high severity)
- CVEs: 10, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2026:1661

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [kernel-rt](https://patchblox.com/security/data/product/linux/kernel-rt.md) | RHEL 8 | 0:4.18.0-553.100.1.rt7.441.el8_10 |
| [kernel-rt-core](https://patchblox.com/security/data/product/linux/kernel-rt-core.md) | RHEL 8 | 0:4.18.0-553.100.1.rt7.441.el8_10 |
| [kernel-rt-debug](https://patchblox.com/security/data/product/linux/kernel-rt-debug.md) | RHEL 8 | 0:4.18.0-553.100.1.rt7.441.el8_10 |
| [kernel-rt-debug-core](https://patchblox.com/security/data/product/linux/kernel-rt-debug-core.md) | RHEL 8 | 0:4.18.0-553.100.1.rt7.441.el8_10 |
| [kernel-rt-debug-devel](https://patchblox.com/security/data/product/linux/kernel-rt-debug-devel.md) | RHEL 8 | 0:4.18.0-553.100.1.rt7.441.el8_10 |
| [kernel-rt-debug-kvm](https://patchblox.com/security/data/product/linux/kernel-rt-debug-kvm.md) | RHEL 8 | 0:4.18.0-553.100.1.rt7.441.el8_10 |
| [kernel-rt-debug-modules](https://patchblox.com/security/data/product/linux/kernel-rt-debug-modules.md) | RHEL 8 | 0:4.18.0-553.100.1.rt7.441.el8_10 |
| [kernel-rt-debug-modules-extra](https://patchblox.com/security/data/product/linux/kernel-rt-debug-modules-extra.md) | RHEL 8 | 0:4.18.0-553.100.1.rt7.441.el8_10 |
| [kernel-rt-devel](https://patchblox.com/security/data/product/linux/kernel-rt-devel.md) | RHEL 8 | 0:4.18.0-553.100.1.rt7.441.el8_10 |
| [kernel-rt-kvm](https://patchblox.com/security/data/product/linux/kernel-rt-kvm.md) | RHEL 8 | 0:4.18.0-553.100.1.rt7.441.el8_10 |
| [kernel-rt-modules](https://patchblox.com/security/data/product/linux/kernel-rt-modules.md) | RHEL 8 | 0:4.18.0-553.100.1.rt7.441.el8_10 |
| [kernel-rt-modules-extra](https://patchblox.com/security/data/product/linux/kernel-rt-modules-extra.md) | RHEL 8 | 0:4.18.0-553.100.1.rt7.441.el8_10 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2022-50865](https://patchblox.com/security/data/cve/CVE-2022-50865.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved:  tcp: fix a signed-integer-overflow bug in tcp_ad... | 7.8 | 0.0053 |  |
| [CVE-2025-40258](https://patchblox.com/security/data/cve/CVE-2025-40258.md) | High | mptcp: fix race condition in mptcp_schedule_work() | 9.8 | 0.0050 |  |
| [CVE-2025-40271](https://patchblox.com/security/data/cve/CVE-2025-40271.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved:  fs/proc: fix uaf in proc_readdir_de()  Pde is er... | 7.8 | 0.0049 |  |
| [CVE-2024-26766](https://patchblox.com/security/data/cve/CVE-2024-26766.md) | High | bpftool: The kernel packages contain the Linux kernel, the core of any Linux operating system | 7.8 | 0.0027 |  |
| [CVE-2025-38024](https://patchblox.com/security/data/cve/CVE-2025-38024.md) | High | kernel-rt: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high... | 7.8 | 0.0023 |  |
| [CVE-2025-38415](https://patchblox.com/security/data/cve/CVE-2025-38415.md) | High | Squashfs: check return result of sb_min_blocksize | 7.8 | 0.0023 |  |
| [CVE-2025-38459](https://patchblox.com/security/data/cve/CVE-2025-38459.md) | High | atm: clip: Fix infinite recursive call of clip_push(). | 7.8 | 0.0021 |  |
| [CVE-2025-38022](https://patchblox.com/security/data/cve/CVE-2025-38022.md) | High | RDMA/core: Fix "KASAN: slab-use-after-free Read in ib_register_device" problem | 7.8 | 0.0020 |  |
| [CVE-2025-39760](https://patchblox.com/security/data/cve/CVE-2025-39760.md) | High | usb: core: config: Prevent OOB read in SS endpoint companion parsing | 7.8 | 0.0018 |  |
| [CVE-2025-40322](https://patchblox.com/security/data/cve/CVE-2025-40322.md) | High | fbdev: bitblit: bound-check glyph index in bit_putcs* | 7.8 | 0.0014 |  |

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Data as of 2026-11-07T18:46:35Z 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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