CVE-2026-43267: Linux内核rtw89驱动除零漏洞

/* * PoC Concept for CVE-2026-43267 * This is a simulation of the condition that triggers the vulnerability. * Real exploitation requires specific hardware (rtw89) and kernel context. */ #include <stdio.h> struct cfg80211_bss_conf { int beacon_int; }; void vulnerable_function(struct cfg80211_bss_conf *bss_conf) { // Simulating the logic in rtw89 driver before patch // If beacon_int is 0, this causes a crash int result = 1000 / bss_conf->beacon_int; printf("Calculation result: %d\n", result); } int main() { struct cfg80211_bss_conf conf; conf.beacon_int = 0; // Setting zero to trigger the crash printf("Attempting to trigger division by zero...\n"); vulnerable_function(&conf); return 0; }