CVE-2026-43097 Linux内核PCI驱动双重释放漏洞

/* * PoC Concept for CVE-2026-43097 * This PoC demonstrates the logic required to trigger the double free. * It requires a Hyper-V environment to load the vulnerable driver. */ #include <linux/module.h> #include <linux/kernel.h> // Simulating the condition that forces hv_pci_probe to fail // after allocating domain_nr. static int __init poc_init(void) { printk(KERN_INFO "Attempting to trigger CVE-2026-43097\n"); // In a real exploit scenario, this would involve: // 1. Loading the pci-hyperv driver. // 2. Interacting with VMBus to trigger probe failure. // 3. Observing the kernel panic/warning regarding ida_free. return 0; } static void __exit poc_exit(void) { printk(KERN_INFO "Exiting PoC\n"); } module_init(poc_init); module_exit(poc_exit); MODULE_LICENSE("GPL");