Siemens SIMATIC S7-1500 CPU 1518 MFP NULL Pointer Dereference (CVE-2026-23439)

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CVE-2026-23439

The CVE-2026-23439 entry describes a Linux kernel issue in udp_tunnel where, if CONFIG_IPV6 is disabled, udp_sock_create6() can return success without creating a socket. This leads to a NULL pointer dereference when callers like fou_create() dereference the uninitialized socket pointer, causing a...