CVE-2026-28825 macOS越界写入漏洞

/* * Conceptual Proof of Concept for CVE-2026-28825 * This code simulates the trigger condition for an Out-of-bounds Write. * Actual exploitation requires specific kernel memory layout and offsets. */ #include <stdio.h> #include <stdlib.h> #include <string.h> // Mocking the vulnerable kernel interface structure struct vuln_buffer { char data[64]; int flag; }; // Simulated vulnerable function (conceptual representation) void trigger_oob_write(char *input, int size) { struct vuln_buffer *buf = (struct vuln_buffer *)malloc(sizeof(struct vuln_buffer)); // VULNERABILITY: Lack of bounds checking (size > 64) // In the real bug, this is a kernel copy operation that doesn't validate length memcpy(buf->data, input, size); printf("[+] Buffer overwritten. Flag value: 0x%x\n", buf->flag); free(buf); } int main() { printf("[*] CVE-2026-28825 PoC Simulation\n"); // Prepare payload larger than the buffer (64 bytes) // This simulates the crafted input sent to the vulnerable interface char payload[100]; memset(payload, 0x41, sizeof(payload)); // Fill with 'A' // Attempt to write past the bounds printf("[*] Sending payload to trigger out-of-bounds write...\n"); trigger_oob_write(payload, 100); printf("[!] Exploit trigger complete.\n"); return 0; }