VULNERABILITY INTELLIGENCE

CVE-2026-23083

CVSS score7.8 HIGH
EPSS probability0.16%
CISA KEVNot currently listed
Published2026-02-04
Last modified2026-10-19
CVSS vectorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

In the Linux kernel, the following vulnerability has been resolved: fou: Don't allow 0 for FOU_ATTR_IPPROTO. fou_udp_recv() has the same problem mentioned in the previous patch. If FOU_ATTR_IPPROTO is set to 0, skb is not freed by fou_udp_recv() nor "resubmit"-ted in ip_protocol_deliver_rcu(). Let's forbid 0 for FOU_ATTR_IPPROTO.

Weakness classification

  • nvd@nist.gov: NVD-CWE-noinfo
  • 134c704f-9b21-4f2e-91b3-4a467353bcc0: CWE-20

Primary references