# libzfs4linux security updates

Patch Radar has 7 security fixes for libzfs4linux, closing 3 CVEs. The newest is libzfs4linux 2.1.5-1ubuntu6~22.04.7 (2.1.5-1ubuntu6~22.04.7), released September 3, 2026.

- Web page: https://patchblox.com/security/product/linux/libzfs4linux
- Platform: Linux
- Supported: yes

## Security fixes, newest first

| Fix | Released | Fixed in | Priority | CVEs | Exploited |
|---|---|---|---|---:|---:|
| [libzfs4linux 2.1.5-1ubuntu6~22.04.7](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libzfs4linux-2.1.5-1ubuntu6-22.04.7.md) | Sep 3, 2026 | Ubuntu 22.04.1 LTS (jammy) 2.1.5-1ubuntu6~22.04.7 | High | 1 | 0 |
| [libzfs4linux 2.2.2-0ubuntu9.5](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libzfs4linux-2.2.2-0ubuntu9.5.md) | Sep 3, 2026 | Ubuntu 24.04.5 LTS (noble) 2.2.2-0ubuntu9.5 | High | 1 | 0 |
| [libzfs4linux 2.2.2-0ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-plucky-libzfs4linux-2.2.2-0ubuntu2.md) | Jan 16, 2026 | Ubuntu 25.04 (plucky) 2.2.2-0ubuntu2 | High | 1 | 0 |
| [libzfs4linux 2.2.2-0ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-oracular-libzfs4linux-2.2.2-0ubuntu2.md) | Jan 16, 2026 | Ubuntu 24.10 (oracular) 2.2.2-0ubuntu2 | High | 1 | 0 |
| [libzfs4linux 2.1.5-1ubuntu6~22.04.4](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libzfs4linux-2.1.5-1ubuntu6-22.04.4.md) | Nov 24, 2023 | Ubuntu 22.04.1 LTS (jammy) 2.1.5-1ubuntu6~22.04.4 | High | 1 | 0 |
| [libzfs4linux 2.2.2-0ubuntu2](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libzfs4linux-2.2.2-0ubuntu2.md) | Nov 24, 2023 | Ubuntu 24.04.5 LTS (noble) 2.2.2-0ubuntu2 | High | 1 | 0 |
| [libzfs4linux 2.1.5-1ubuntu6~22.04.2](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libzfs4linux-2.1.5-1ubuntu6-22.04.2.md) | Feb 12, 2021 | Ubuntu 22.04.1 LTS (jammy) 2.1.5-1ubuntu6~22.04.2 | Routine | 1 | 0 |

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Data as of 2026-11-06T17:00:54Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo