# ELSA-2021-9057: Security update for 2 packages

ELSA-2021-9057, released February 16, 2021, fixes 3 CVEs across 2 products. None of them is reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/fix/linux/elsa-2021-9057
- Platform: Linux
- Released: Feb 16, 2021
- Priority: High (Closes CVE-2021-26930, high severity)
- CVEs: 3, exploited: 0, on CISA KEV: 0
- Vendor advisory: https://linux.oracle.com/errata/ELSA-2021-9057.html

## Applies to

| Product | Release | Fixed in |
|---|---|---|
| [kernel-uek-container](https://patchblox.com/security/data/product/linux/kernel-uek-container.md) | ol 8 | 0:5.4.17-2036.103.3.1.el8 |
| [kernel-uek-container-debug](https://patchblox.com/security/data/product/linux/kernel-uek-container-debug.md) | ol 8 | 0:5.4.17-2036.103.3.1.el8 |

## CVEs this fix closes

| CVE | Priority | Title | CVSS | EPSS | Exploitation |
|---|---|---|---:|---:|---|
| [CVE-2021-26930](https://patchblox.com/security/data/cve/CVE-2021-26930.md) | High | kernel-uek: [5.4.17-2036.103.3.1uek] - xen-blkback: fix error handling in xen_blkbk_map() (Jan Beulich)  [Orabug: 32492109]  {CVE... | 7.8 | 0.0035 |  |
| [CVE-2021-26931](https://patchblox.com/security/data/cve/CVE-2021-26931.md) | Routine | kernel-uek: [5.4.17-2036.103.3.1uek] - xen-blkback: fix error handling in xen_blkbk_map() (Jan Beulich)  [Orabug: 32492109]  {CVE... | 5.5 | 0.0056 |  |
| [CVE-2021-26932](https://patchblox.com/security/data/cve/CVE-2021-26932.md) | Routine | kernel-uek: [5.4.17-2036.103.3.1uek] - xen-blkback: fix error handling in xen_blkbk_map() (Jan Beulich)  [Orabug: 32492109]  {CVE... | 5.5 | 0.0035 |  |

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Data as of 2026-11-07T06:34:28Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo