CVE-2026-43102 Linux内核airoha驱动内存泄漏漏洞

/* * PoC Concept for CVE-2026-43102 * This snippet demonstrates the logic error in airoha_qdma_rx_process. * Exploitation requires access to an affected system with the airoha driver. */ #include <linux/kernel.h> #include <net/page_pool.h> // Simulated vulnerable function logic void vulnerable_logic(struct page_pool *pool, struct sk_buff *skb, int error) { // ... processing rx buffers ... if (error) { // Error path in non-linear buffer handling // VULNERABILITY: If the fragment was not linked to skb, // page_pool_put_full_page() is not called here. // Fix would be: // if (page) // page_pool_put_full_page(pool, page, true); return; // Memory leak occurs here } } // Note: Actual exploitation involves sending specific network traffic // to trigger the error condition in the driver.