The vulnerability of the `udp_sock_create6()` function in the `include/net/udp_tunnel.h` module of the Linux kernel allows a attacker to cause a service failure.

The vulnerability of the udpsockcreate6 function in the include/net/udptunnel.h module of the Linux kernel is related to the pointer dereferencing. Exploiting this vulnerability could allow an attacker to cause a service failure...

CVE-2026-23439

In the Linux kernel, the following vulnerability has been resolved: udptunnel: fix NULL deref caused by udpsockcreate6 when CONFIGIPV6=n When CONFIGIPV6 is disabled, the udpsockcreate6 function returns 0 success without actually creating a socket. Callers such as foucreate then proceed to...