# RHSA-2026:33215: kernel security update

RHSA-2026:33215, released May 27, 2026, fixes 11 CVEs in kernel (version 6.12.0-55.84.1.el10_0). None of them is reported as exploited. Patch Radar priority: Urgent.

- Web page: https://patchblox.com/security/fix/linux/rhsa-2026-33215
- Platform: Linux
- Released: May 27, 2026
- Priority: Urgent (Closes CVE-2026-43341, rated Critical)
- CVEs: 11, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://access.redhat.com/errata/RHSA-2026:33215

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [kernel](https://patchblox.com/security/data/product/linux/kernel.md) | RHEL 10 | 6.12.0-55.84.1.el10_0 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-43341](https://patchblox.com/security/data/cve/CVE-2026-43341.md) | Urgent | linux: In the Linux kernel, the following vulnerability has been resolved:  net/ipv6: ioam6: prevent schema length wraparoun... | 9.8 | 0.0051 |  |
| [CVE-2026-31669](https://patchblox.com/security/data/cve/CVE-2026-31669.md) | High | mptcp: fix slab-use-after-free in __inet_lookup_established | 9.8 | 0.0047 |  |
| [CVE-2026-43158](https://patchblox.com/security/data/cve/CVE-2026-43158.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved:  xfs: fix freemap adjustments when adding xattrs... | 8.8 | 0.0047 |  |
| [CVE-2026-46244](https://patchblox.com/security/data/cve/CVE-2026-46244.md) | High | netfilter: nft_inner: Fix IPv6 inner_thoff desync | 9.1 | 0.0042 |  |
| [CVE-2026-43198](https://patchblox.com/security/data/cve/CVE-2026-43198.md) | High | tcp: fix potential race in tcp_v6_syn_recv_sock() | 9.8 | 0.0030 |  |
| [CVE-2026-46166](https://patchblox.com/security/data/cve/CVE-2026-46166.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved:  wifi: mac80211: use safe list iteration in radar... | 8.8 | 0.0020 |  |
| [CVE-2026-43329](https://patchblox.com/security/data/cve/CVE-2026-43329.md) | High | kpatch-patch-4_18_0-553_109_1: This is a kernel live patch module which can be loaded by the kpatch command line utility to modify the code of a run... | 7.8 | 0.0018 |  |
| [CVE-2026-43303](https://patchblox.com/security/data/cve/CVE-2026-43303.md) | High | mm/page_alloc: clear page->private in free_pages_prepare() | 7.8 | 0.0017 |  |
| [CVE-2026-46176](https://patchblox.com/security/data/cve/CVE-2026-46176.md) | High | RDMA/mlx5: Fix error path fall-through in mlx5_ib_dev_res_srq_init() | 7.8 | 0.0014 |  |
| [CVE-2026-43128](https://patchblox.com/security/data/cve/CVE-2026-43128.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved:  RDMA/umem: Fix double dma_buf_unpin in failure p... | 8.1 | 0.0014 |  |
| [CVE-2026-46090](https://patchblox.com/security/data/cve/CVE-2026-46090.md) | High | ALSA: aloop: Fix peer runtime UAF during format-change stop | 7.8 | 0.0010 |  |

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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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