# RLSA-2026:54343: kernel security update

RLSA-2026:54343, released August 13, 2026, fixes 4 CVEs in kernel (version 0:6.12.0-211.47.1.el10_2). None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/rlsa-2026-54343
- Platform: Linux
- Released: Aug 13, 2026
- Priority: High (Closes CVE-2026-63887, high severity)
- CVEs: 4, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://errata.rockylinux.org/RLSA-2026:54343

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [kernel](https://patchblox.com/security/data/product/linux/kernel.md) | rocky 10 | 0:6.12.0-211.47.1.el10_2 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2026-63887](https://patchblox.com/security/data/cve/CVE-2026-63887.md) | High | kernel: In the Linux kernel, the following vulnerability has been resolved: scsi: target: iscsi: Bound iscsi_encode_text_outp... | 9.8 | 0.0078 |  |
| [CVE-2026-53264](https://patchblox.com/security/data/cve/CVE-2026-53264.md) | High | net/sched: act_api: use RCU with deferred freeing for action lifecycle | 7.8 | 0.0049 |  |
| [CVE-2026-64300](https://patchblox.com/security/data/cve/CVE-2026-64300.md) | High | linux: In the Linux kernel, the following vulnerability has been resolved:  perf/aux: Fix page UAF in map_range()  map_range... | 7.8 | 0.0018 |  |
| [CVE-2026-53202](https://patchblox.com/security/data/cve/CVE-2026-53202.md) | High | kernel: In the Linux kernel, the following vulnerability has been resolved: accel/ivpu: Fix signed integer truncation in IPC... | 7.8 | 0.0016 |  |

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Data as of 2026-11-07T12:40:37Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo