CVE-2026-80735

Source
https://cve.org/CVERecord?id=CVE-2026-80735
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80735.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-80735
Downstream
Published
2026-09-03T08:21:51.344Z
Modified
2026-09-05T03:48:19.851339635Z
Severity
  • 7.3 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L CVSS Calculator
Summary
ovpn: ensure socket is owned by ovpn before deref sk_user_data
Details

In the Linux kernel, the following vulnerability has been resolved:

ovpn: ensure socket is owned by ovpn before deref skuserdata

Some subsystems, like BPF SOCKMAP, set skuserdata without actually setting the encap_type.

For this reason, we must make sure that the type is the one ovpn expects before dereferencing skuserdata.

Failing to do so may lead to out-of-bounds reads.

Database specific
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/80xxx/CVE-2026-80735.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
f6226ae7a0cd47aaa9175aca6a1e19600f884cbf
Fixed
61fb3cca40ff938671474f4a16adb908c19032d7
Fixed
43a31142e1d22b3cf5490bd94a94db7196901734
Fixed
59aed1eb60d70678a53acccb0cb337a26ce6680e

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80735.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
6.16.0
Fixed
6.18.45
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.1.9

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-80735.json"