The following code is for security research and authorized testing only.
python
#include <stdio.h>
#include <stdlib.h>
// Simulation of the vulnerability logic
void vulnerable_function(char* user_input) {
// Vulnerability: No NULL check before dereferencing user_input
// This mimics the NULL pointer dereference in Walrus
if (*user_input == 'T') {
printf("Processing valid input\n");
}
}
int main() {
printf("PoC for CVE-2026-47308\n");
// Step 1: Prepare a NULL pointer
char *malicious_input = NULL;
// Step 2: Call the vulnerable function with NULL pointer
// This requires Local Access and User Interaction context
printf("Triggering NULL pointer dereference...\n");
vulnerable_function(malicious_input);
return 0;
}