CVE-2025-68191

An inappropriate warning severity was found in the UDP tunnel code in the Linux kernel. The code uses netdev_WARN() (which triggers WARN_ON with stack trace) for normal allocation failures in udp_tunnel_nic_register(). This can cause unnecessary system instability alerts for routine memory pressure situations.

This is a code quality improvement rather than a security fix. Using WARN for expected error conditions creates noise in logs and could trigger panic-on-warn configurations unnecessarily.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.