# RHSA-2026:82806: Security update for 12 packages

RHSA-2026:82806, released October 16, 2026, fixes 8 CVEs across 12 products. None of them is reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2026-82806
- Platform: Linux
- Released: Oct 16, 2026
- Priority: Urgent (Closes CVE-2026-68236, rated Critical)
- CVEs: 8, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2026:82806

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [kernel-rt](https://patchblox.com/security/data/product/linux/kernel-rt.md) | RHEL 8 | 0:4.18.0-553.173.1.rt7.514.el8_10 |
| [kernel-rt-core](https://patchblox.com/security/data/product/linux/kernel-rt-core.md) | RHEL 8 | 0:4.18.0-553.173.1.rt7.514.el8_10 |
| [kernel-rt-debug](https://patchblox.com/security/data/product/linux/kernel-rt-debug.md) | RHEL 8 | 0:4.18.0-553.173.1.rt7.514.el8_10 |
| [kernel-rt-debug-core](https://patchblox.com/security/data/product/linux/kernel-rt-debug-core.md) | RHEL 8 | 0:4.18.0-553.173.1.rt7.514.el8_10 |
| [kernel-rt-debug-devel](https://patchblox.com/security/data/product/linux/kernel-rt-debug-devel.md) | RHEL 8 | 0:4.18.0-553.173.1.rt7.514.el8_10 |
| [kernel-rt-debug-kvm](https://patchblox.com/security/data/product/linux/kernel-rt-debug-kvm.md) | RHEL 8 | 0:4.18.0-553.173.1.rt7.514.el8_10 |
| [kernel-rt-debug-modules](https://patchblox.com/security/data/product/linux/kernel-rt-debug-modules.md) | RHEL 8 | 0:4.18.0-553.173.1.rt7.514.el8_10 |
| [kernel-rt-debug-modules-extra](https://patchblox.com/security/data/product/linux/kernel-rt-debug-modules-extra.md) | RHEL 8 | 0:4.18.0-553.173.1.rt7.514.el8_10 |
| [kernel-rt-devel](https://patchblox.com/security/data/product/linux/kernel-rt-devel.md) | RHEL 8 | 0:4.18.0-553.173.1.rt7.514.el8_10 |
| [kernel-rt-kvm](https://patchblox.com/security/data/product/linux/kernel-rt-kvm.md) | RHEL 8 | 0:4.18.0-553.173.1.rt7.514.el8_10 |
| [kernel-rt-modules](https://patchblox.com/security/data/product/linux/kernel-rt-modules.md) | RHEL 8 | 0:4.18.0-553.173.1.rt7.514.el8_10 |
| [kernel-rt-modules-extra](https://patchblox.com/security/data/product/linux/kernel-rt-modules-extra.md) | RHEL 8 | 0:4.18.0-553.173.1.rt7.514.el8_10 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-68236](https://patchblox.com/security/data/cve/CVE-2026-68236.md) | Urgent | drm/amd/display: set new_stream to NULL after release | 9.8 | 0.0013 |  |
| [CVE-2026-68409](https://patchblox.com/security/data/cve/CVE-2026-68409.md) | High | wifi: mac80211: defer link RX stats percpu free to RCU | 8.8 | 0.0031 |  |
| [CVE-2026-68278](https://patchblox.com/security/data/cve/CVE-2026-68278.md) | High | drm/dp/mst: fix buffer overflows in sideband chunk accumulation | 8.1 | 0.0024 |  |
| [CVE-2026-89811](https://patchblox.com/security/data/cve/CVE-2026-89811.md) | High | drm/amdkfd: Add TLB flush after MES queue eviction/suspension | 8.8 | 0.0018 |  |
| [CVE-2026-63920](https://patchblox.com/security/data/cve/CVE-2026-63920.md) | High | kernel: The kernel packages contain the Linux kernel, the core of any Linux operating system | 8.1 | 0.0017 |  |
| [CVE-2026-80887](https://patchblox.com/security/data/cve/CVE-2026-80887.md) | High | drm/vmwgfx: use check_add_overflow for shader size+offset bound | 8.1 | 0.0017 |  |
| [CVE-2026-68108](https://patchblox.com/security/data/cve/CVE-2026-68108.md) | High | drm/amdgpu/vce: fix integer overflow in image size | 8.8 | 0.0014 |  |
| [CVE-2026-31678](https://patchblox.com/security/data/cve/CVE-2026-31678.md) | High | openvswitch: defer tunnel netdev_put to RCU release | 8.8 | 0.0013 |  |

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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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