CVE-2026-80735

ovpn: ensure socket is owned by ovpn before deref sk_user_data

HIGH
7.3
CVSS Score
Published: September 3, 2026 at 08:21 AM UTC
Updated: September 4, 2026 at 05:24 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.3
Exploit prediction
EPSS 0.2%

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.16 ≤ v < 6.18.456.16 ≤ v < 7.1.96.16 ≤ v < 7.26.16f6226ae7a0cd47aaa9175aca6a1e19600f884cbf
Vendor states this is fixed in 43a31142e1d22b3cf5490bd94a94db7196901734 (fixed)
Vendor states this is fixed in 59aed1eb60d70678a53acccb0cb337a26ce6680e (fixed)
Vendor states this is fixed in 61fb3cca40ff938671474f4a16adb908c19032d7 (fixed)
Vendor states this is fixed in 6.16 (unaffected)
Vendor states this is fixed in 6.18.45 (unaffected)
Vendor states this is fixed in 7.1.9 (unaffected)
Vendor states this is fixed in 7.2 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

CVSS

7.3HIGHLinux
Vector?

Quick Info

StatusRECEIVED

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