# CVE-2026-80735: linux: In the Linux kernel, the following vulnerability has been resolved:  ovpn: ensure socket is owned by ovpn before dere...

CVE-2026-80735 is fixed in linux on 1 platform by DEBIAN-CVE-2026-80735 (version 7.1.9-1), released September 4, 2026. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2026-80735
- Priority: High
- CVSS: 7.3 (high)
- EPSS: 0.0017
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Sep 3, 2026

## Description

In the Linux kernel, the following vulnerability has been resolved:  ovpn: ensure socket is owned by ovpn before deref sk_user_data  Some subsystems, like BPF SOCKMAP, set sk_user_data without actually setting the encap_type.  For this reason, we must make sure that the type is the one ovpn expects before dereferencing sk_user_data.  Failing to do so may lead to out-of-bounds reads.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 7.1.9-1 | [DEBIAN-CVE-2026-80735](https://patchblox.com/security/data/fix/linux/debian-cve-2026-80735.md) | Sep 4, 2026 |

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Data as of 2026-11-08T13:06:02Z 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 Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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